dlls/wined3d/context.c

   1 /*
   2  * Context and render target management in wined3d
   3  *
   4  * Copyright 2007-2011, 2013 Stefan Dösinger for CodeWeavers
   5  * Copyright 2009-2011 Henri Verbeet for CodeWeavers
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdio.h>
  26 #ifdef HAVE_FLOAT_H
  27 # include <float.h>
  28 #endif
  29
  30 #include "wined3d_private.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(d3d);
  33 WINE_DECLARE_DEBUG_CHANNEL(d3d_perf);
  34 WINE_DECLARE_DEBUG_CHANNEL(d3d_synchronous);
  35
  36 #define WINED3D_MAX_FBO_ENTRIES 64
  37
  38 static DWORD wined3d_context_tls_idx;
  39
  40 /* FBO helper functions */
  41
  42 /* Context activation is done by the caller. */
  43 static void context_bind_fbo(struct wined3d_context *context, GLenum target, GLuint fbo)
  44 {
  45     const struct wined3d_gl_info *gl_info = context->gl_info;
  46
  47     switch (target)
  48     {
  49         case GL_READ_FRAMEBUFFER:
  50             if (context->fbo_read_binding == fbo) return;
  51             context->fbo_read_binding = fbo;
  52             break;
  53
  54         case GL_DRAW_FRAMEBUFFER:
  55             if (context->fbo_draw_binding == fbo) return;
  56             context->fbo_draw_binding = fbo;
  57             break;
  58
  59         case GL_FRAMEBUFFER:
  60             if (context->fbo_read_binding == fbo
  61                     && context->fbo_draw_binding == fbo) return;
  62             context->fbo_read_binding = fbo;
  63             context->fbo_draw_binding = fbo;
  64             break;
  65
  66         default:
  67             FIXME("Unhandled target %#x.\n", target);
  68             break;
  69     }
  70
  71     gl_info->fbo_ops.glBindFramebuffer(target, fbo);
  72     checkGLcall("glBindFramebuffer()");
  73 }
  74
  75 /* Context activation is done by the caller. */
  76 static void context_clean_fbo_attachments(const struct wined3d_gl_info *gl_info, GLenum target)
  77 {
  78     unsigned int i;
  79
  80     for (i = 0; i < gl_info->limits.buffers; ++i)
  81     {
  82         gl_info->fbo_ops.glFramebufferTexture2D(target, GL_COLOR_ATTACHMENT0 + i, GL_TEXTURE_2D, 0, 0);
  83         checkGLcall("glFramebufferTexture2D()");
  84     }
  85     gl_info->fbo_ops.glFramebufferTexture2D(target, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
  86     checkGLcall("glFramebufferTexture2D()");
  87
  88     gl_info->fbo_ops.glFramebufferTexture2D(target, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
  89     checkGLcall("glFramebufferTexture2D()");
  90 }
  91
  92 /* Context activation is done by the caller. */
  93 static void context_destroy_fbo(struct wined3d_context *context, GLuint fbo)
  94 {
  95     const struct wined3d_gl_info *gl_info = context->gl_info;
  96
  97     context_bind_fbo(context, GL_FRAMEBUFFER, fbo);
  98     context_clean_fbo_attachments(gl_info, GL_FRAMEBUFFER);
  99     context_bind_fbo(context, GL_FRAMEBUFFER, 0);
 100
 101     gl_info->fbo_ops.glDeleteFramebuffers(1, &fbo);
 102     checkGLcall("glDeleteFramebuffers()");
 103 }
 104
 105 static void context_attach_depth_stencil_rb(const struct wined3d_gl_info *gl_info,
 106         GLenum fbo_target, DWORD flags, GLuint rb)
 107 {
 108     if (flags & WINED3D_FBO_ENTRY_FLAG_DEPTH)
 109     {
 110         gl_info->fbo_ops.glFramebufferRenderbuffer(fbo_target, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rb);
 111         checkGLcall("glFramebufferRenderbuffer()");
 112     }
 113
 114     if (flags & WINED3D_FBO_ENTRY_FLAG_STENCIL)
 115     {
 116         gl_info->fbo_ops.glFramebufferRenderbuffer(fbo_target, GL_STENCIL_ATTACHMENT, GL_RENDERBUFFER, rb);
 117         checkGLcall("glFramebufferRenderbuffer()");
 118     }
 119 }
 120
 121 static void context_attach_gl_texture_fbo(struct wined3d_context *context,
 122         GLenum fbo_target, GLenum attachment, const struct wined3d_fbo_resource *resource)
 123 {
 124     const struct wined3d_gl_info *gl_info = context->gl_info;
 125
 126     if (!resource)
 127     {
 128         gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, attachment, GL_TEXTURE_2D, 0, 0);
 129         checkGLcall("glFramebufferTexture2D()");
 130     }
 131     else if (resource->target == GL_TEXTURE_2D_ARRAY)
 132     {
 133         if (!gl_info->fbo_ops.glFramebufferTextureLayer)
 134         {
 135             FIXME("OpenGL implementation doesn't support glFramebufferTextureLayer().\n");
 136             return;
 137         }
 138
 139         gl_info->fbo_ops.glFramebufferTextureLayer(fbo_target, attachment,
 140                 resource->object, resource->level, resource->layer);
 141         checkGLcall("glFramebufferTextureLayer()");
 142     }
 143     else
 144     {
 145         gl_info->fbo_ops.glFramebufferTexture2D(fbo_target, attachment,
 146                 resource->target, resource->object, resource->level);
 147         checkGLcall("glFramebufferTexture2D()");
 148     }
 149 }
 150
 151 /* Context activation is done by the caller. */
 152 static void context_attach_depth_stencil_fbo(struct wined3d_context *context,
 153         GLenum fbo_target, const struct wined3d_fbo_resource *resource, BOOL rb_namespace,
 154         DWORD flags)
 155 {
 156     const struct wined3d_gl_info *gl_info = context->gl_info;
 157
 158     if (resource->object)
 159     {
 160         TRACE("Attach depth stencil %u.\n", resource->object);
 161
 162         if (rb_namespace)
 163         {
 164             context_attach_depth_stencil_rb(gl_info, fbo_target,
 165                     flags, resource->object);
 166         }
 167         else
 168         {
 169             if (flags & WINED3D_FBO_ENTRY_FLAG_DEPTH)
 170                 context_attach_gl_texture_fbo(context, fbo_target, GL_DEPTH_ATTACHMENT, resource);
 171
 172             if (flags & WINED3D_FBO_ENTRY_FLAG_STENCIL)
 173                 context_attach_gl_texture_fbo(context, fbo_target, GL_STENCIL_ATTACHMENT, resource);
 174         }
 175
 176         if (!(flags & WINED3D_FBO_ENTRY_FLAG_DEPTH))
 177             context_attach_gl_texture_fbo(context, fbo_target, GL_DEPTH_ATTACHMENT, NULL);
 178
 179         if (!(flags & WINED3D_FBO_ENTRY_FLAG_STENCIL))
 180             context_attach_gl_texture_fbo(context, fbo_target, GL_STENCIL_ATTACHMENT, NULL);
 181     }
 182     else
 183     {
 184         TRACE("Attach depth stencil 0.\n");
 185
 186         context_attach_gl_texture_fbo(context, fbo_target, GL_DEPTH_ATTACHMENT, NULL);
 187         context_attach_gl_texture_fbo(context, fbo_target, GL_STENCIL_ATTACHMENT, NULL);
 188     }
 189 }
 190
 191 /* Context activation is done by the caller. */
 192 static void context_attach_surface_fbo(struct wined3d_context *context,
 193         GLenum fbo_target, DWORD idx, const struct wined3d_fbo_resource *resource, BOOL rb_namespace)
 194 {
 195     const struct wined3d_gl_info *gl_info = context->gl_info;
 196
 197     TRACE("Attach GL object %u to %u.\n", resource->object, idx);
 198
 199     if (resource->object)
 200     {
 201
 202         if (rb_namespace)
 203         {
 204             gl_info->fbo_ops.glFramebufferRenderbuffer(fbo_target, GL_COLOR_ATTACHMENT0 + idx,
 205                     GL_RENDERBUFFER, resource->object);
 206             checkGLcall("glFramebufferRenderbuffer()");
 207         }
 208         else
 209         {
 210             context_attach_gl_texture_fbo(context, fbo_target, GL_COLOR_ATTACHMENT0 + idx, resource);
 211         }
 212     }
 213     else
 214     {
 215         context_attach_gl_texture_fbo(context, fbo_target, GL_COLOR_ATTACHMENT0 + idx, NULL);
 216     }
 217 }
 218
 219 static void context_dump_fbo_attachment(const struct wined3d_gl_info *gl_info, GLenum target,
 220         GLenum attachment)
 221 {
 222     static const struct
 223     {
 224         GLenum target;
 225         GLenum binding;
 226         const char *str;
 227         enum wined3d_gl_extension extension;
 228     }
 229     texture_type[] =
 230     {
 231         {GL_TEXTURE_2D,            GL_TEXTURE_BINDING_2D,            "2d",        WINED3D_GL_EXT_NONE},
 232         {GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_BINDING_RECTANGLE_ARB, "rectangle", ARB_TEXTURE_RECTANGLE},
 233         {GL_TEXTURE_2D_ARRAY,      GL_TEXTURE_BINDING_2D_ARRAY,      "2d-array",  EXT_TEXTURE_ARRAY},
 234     };
 235
 236     GLint type, name, samples, width, height, old_texture, level, face, fmt, tex_target;
 237
 238     gl_info->fbo_ops.glGetFramebufferAttachmentParameteriv(target, attachment,
 239             GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, &name);
 240     gl_info->fbo_ops.glGetFramebufferAttachmentParameteriv(target, attachment,
 241             GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &type);
 242
 243     if (type == GL_RENDERBUFFER)
 244     {
 245         gl_info->fbo_ops.glBindRenderbuffer(GL_RENDERBUFFER, name);
 246         gl_info->fbo_ops.glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_WIDTH, &width);
 247         gl_info->fbo_ops.glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_HEIGHT, &height);
 248         if (gl_info->limits.samples > 1)
 249             gl_info->fbo_ops.glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_SAMPLES, &samples);
 250         else
 251             samples = 1;
 252         gl_info->fbo_ops.glGetRenderbufferParameteriv(GL_RENDERBUFFER, GL_RENDERBUFFER_INTERNAL_FORMAT, &fmt);
 253         FIXME("    %s: renderbuffer %d, %dx%d, %d samples, format %#x.\n",
 254                 debug_fboattachment(attachment), name, width, height, samples, fmt);
 255     }
 256     else if (type == GL_TEXTURE)
 257     {
 258         const char *tex_type_str;
 259
 260         gl_info->fbo_ops.glGetFramebufferAttachmentParameteriv(target, attachment,
 261                 GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL, &level);
 262         gl_info->fbo_ops.glGetFramebufferAttachmentParameteriv(target, attachment,
 263                 GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE, &face);
 264
 265         if (face)
 266         {
 267             gl_info->gl_ops.gl.p_glGetIntegerv(GL_TEXTURE_BINDING_CUBE_MAP, &old_texture);
 268
 269             gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_CUBE_MAP, name);
 270             gl_info->gl_ops.gl.p_glGetTexLevelParameteriv(face, level, GL_TEXTURE_INTERNAL_FORMAT, &fmt);
 271             gl_info->gl_ops.gl.p_glGetTexLevelParameteriv(face, level, GL_TEXTURE_WIDTH, &width);
 272             gl_info->gl_ops.gl.p_glGetTexLevelParameteriv(face, level, GL_TEXTURE_HEIGHT, &height);
 273
 274             tex_target = GL_TEXTURE_CUBE_MAP;
 275             tex_type_str = "cube";
 276         }
 277         else
 278         {
 279             unsigned int i;
 280
 281             tex_type_str = NULL;
 282             for (i = 0; i < sizeof(texture_type) / sizeof(*texture_type); ++i)
 283             {
 284                 if (!gl_info->supported[texture_type[i].extension])
 285                     continue;
 286
 287                 gl_info->gl_ops.gl.p_glGetIntegerv(texture_type[i].binding, &old_texture);
 288                 while (gl_info->gl_ops.gl.p_glGetError());
 289
 290                 gl_info->gl_ops.gl.p_glBindTexture(texture_type[i].target, name);
 291                 if (!gl_info->gl_ops.gl.p_glGetError())
 292                 {
 293                     tex_target = texture_type[i].target;
 294                     tex_type_str = texture_type[i].str;
 295                     break;
 296                 }
 297                 gl_info->gl_ops.gl.p_glBindTexture(texture_type[i].target, old_texture);
 298             }
 299             if (!tex_type_str)
 300             {
 301                 FIXME("Cannot find type of texture %d.\n", name);
 302                 return;
 303             }
 304
 305             gl_info->gl_ops.gl.p_glGetTexLevelParameteriv(tex_target, level, GL_TEXTURE_INTERNAL_FORMAT, &fmt);
 306             gl_info->gl_ops.gl.p_glGetTexLevelParameteriv(tex_target, level, GL_TEXTURE_WIDTH, &width);
 307             gl_info->gl_ops.gl.p_glGetTexLevelParameteriv(tex_target, level, GL_TEXTURE_HEIGHT, &height);
 308         }
 309
 310         FIXME("    %s: %s texture %d, %dx%d, format %#x.\n", debug_fboattachment(attachment),
 311                 tex_type_str, name, width, height, fmt);
 312
 313         gl_info->gl_ops.gl.p_glBindTexture(tex_target, old_texture);
 314         checkGLcall("Guess texture type");
 315     }
 316     else if (type == GL_NONE)
 317     {
 318         FIXME("    %s: NONE.\n", debug_fboattachment(attachment));
 319     }
 320     else
 321     {
 322         ERR("    %s: Unknown attachment %#x.\n", debug_fboattachment(attachment), type);
 323     }
 324 }
 325
 326 /* Context activation is done by the caller. */
 327 void context_check_fbo_status(const struct wined3d_context *context, GLenum target)
 328 {
 329     const struct wined3d_gl_info *gl_info = context->gl_info;
 330     GLenum status;
 331
 332     if (!FIXME_ON(d3d)) return;
 333
 334     status = gl_info->fbo_ops.glCheckFramebufferStatus(target);
 335     if (status == GL_FRAMEBUFFER_COMPLETE)
 336     {
 337         TRACE("FBO complete\n");
 338     }
 339     else
 340     {
 341         unsigned int i;
 342
 343         FIXME("FBO status %s (%#x)\n", debug_fbostatus(status), status);
 344
 345         if (!context->current_fbo)
 346         {
 347             ERR("FBO 0 is incomplete, driver bug?\n");
 348             return;
 349         }
 350
 351         context_dump_fbo_attachment(gl_info, target, GL_DEPTH_ATTACHMENT);
 352         context_dump_fbo_attachment(gl_info, target, GL_STENCIL_ATTACHMENT);
 353
 354         for (i = 0; i < gl_info->limits.buffers; ++i)
 355             context_dump_fbo_attachment(gl_info, target, GL_COLOR_ATTACHMENT0 + i);
 356         checkGLcall("Dump FBO attachments");
 357     }
 358 }
 359
 360 static inline DWORD context_generate_rt_mask(GLenum buffer)
 361 {
 362     /* Should take care of all the GL_FRONT/GL_BACK/GL_AUXi/GL_NONE... cases */
 363     return buffer ? (1u << 31) | buffer : 0;
 364 }
 365
 366 static inline DWORD context_generate_rt_mask_from_resource(struct wined3d_resource *resource)
 367 {
 368     if (resource->type != WINED3D_RTYPE_TEXTURE_2D)
 369     {
 370         FIXME("Not implemented for %s resources.\n", debug_d3dresourcetype(resource->type));
 371         return 0;
 372     }
 373
 374     return (1u << 31) | wined3d_texture_get_gl_buffer(texture_from_resource(resource));
 375 }
 376
 377 static inline void context_set_fbo_key_for_surface(const struct wined3d_context *context,
 378         struct wined3d_fbo_entry_key *key, UINT idx, struct wined3d_surface *surface,
 379         DWORD location)
 380 {
 381     if (!surface || surface->container->resource.format->id == WINED3DFMT_NULL)
 382     {
 383         key->objects[idx].object = 0;
 384         key->objects[idx].target = 0;
 385         key->objects[idx].level = key->objects[idx].layer = 0;
 386     }
 387     else if (surface->current_renderbuffer)
 388     {
 389         key->objects[idx].object = surface->current_renderbuffer->id;
 390         key->objects[idx].target = 0;
 391         key->objects[idx].level = key->objects[idx].layer = 0;
 392         key->rb_namespace |= 1 << idx;
 393     }
 394     else
 395     {
 396         switch (location)
 397         {
 398             case WINED3D_LOCATION_TEXTURE_RGB:
 399                 key->objects[idx].object = surface_get_texture_name(surface, context, FALSE);
 400                 key->objects[idx].target = surface->texture_target;
 401                 key->objects[idx].level = surface->texture_level;
 402                 key->objects[idx].layer = surface->texture_layer;
 403                 break;
 404
 405             case WINED3D_LOCATION_TEXTURE_SRGB:
 406                 key->objects[idx].object = surface_get_texture_name(surface, context, TRUE);
 407                 key->objects[idx].target = surface->texture_target;
 408                 key->objects[idx].level = surface->texture_level;
 409                 key->objects[idx].layer = surface->texture_layer;
 410                 break;
 411
 412             case WINED3D_LOCATION_RB_MULTISAMPLE:
 413                 key->objects[idx].object = surface->container->rb_multisample;
 414                 key->objects[idx].target = 0;
 415                 key->objects[idx].level = key->objects[idx].layer = 0;
 416                 key->rb_namespace |= 1 << idx;
 417                 break;
 418
 419             case WINED3D_LOCATION_RB_RESOLVED:
 420                 key->objects[idx].object = surface->container->rb_resolved;
 421                 key->objects[idx].target = 0;
 422                 key->objects[idx].level = key->objects[idx].layer = 0;
 423                 key->rb_namespace |= 1 << idx;
 424                 break;
 425         }
 426     }
 427 }
 428
 429 static void context_generate_fbo_key(const struct wined3d_context *context,
 430         struct wined3d_fbo_entry_key *key, struct wined3d_surface **render_targets,
 431         struct wined3d_surface *depth_stencil, DWORD color_location,
 432         DWORD ds_location)
 433 {
 434     UINT i;
 435
 436     key->rb_namespace = 0;
 437     context_set_fbo_key_for_surface(context, key, 0, depth_stencil, ds_location);
 438
 439     for (i = 0; i < context->gl_info->limits.buffers; ++i)
 440         context_set_fbo_key_for_surface(context, key, i + 1, render_targets[i], color_location);
 441 }
 442
 443 static struct fbo_entry *context_create_fbo_entry(const struct wined3d_context *context,
 444         struct wined3d_surface **render_targets, struct wined3d_surface *depth_stencil,
 445         DWORD color_location, DWORD ds_location)
 446 {
 447     const struct wined3d_gl_info *gl_info = context->gl_info;
 448     struct fbo_entry *entry;
 449     UINT object_count = gl_info->limits.buffers + 1;
 450
 451     entry = HeapAlloc(GetProcessHeap(), 0,
 452             FIELD_OFFSET(struct fbo_entry, key.objects[object_count]));
 453     memset(&entry->key, 0, FIELD_OFFSET(struct wined3d_fbo_entry_key, objects[object_count]));
 454     context_generate_fbo_key(context, &entry->key, render_targets, depth_stencil, color_location, ds_location);
 455     entry->flags = 0;
 456     if (depth_stencil)
 457     {
 458         if (depth_stencil->container->resource.format_flags & WINED3DFMT_FLAG_DEPTH)
 459             entry->flags |= WINED3D_FBO_ENTRY_FLAG_DEPTH;
 460         if (depth_stencil->container->resource.format_flags & WINED3DFMT_FLAG_STENCIL)
 461             entry->flags |= WINED3D_FBO_ENTRY_FLAG_STENCIL;
 462     }
 463     entry->rt_mask = context_generate_rt_mask(GL_COLOR_ATTACHMENT0);
 464     gl_info->fbo_ops.glGenFramebuffers(1, &entry->id);
 465     checkGLcall("glGenFramebuffers()");
 466     TRACE("Created FBO %u.\n", entry->id);
 467
 468     return entry;
 469 }
 470
 471 /* Context activation is done by the caller. */
 472 static void context_reuse_fbo_entry(struct wined3d_context *context, GLenum target,
 473         struct wined3d_surface **render_targets, struct wined3d_surface *depth_stencil,
 474         DWORD color_location, DWORD ds_location, struct fbo_entry *entry)
 475 {
 476     const struct wined3d_gl_info *gl_info = context->gl_info;
 477
 478     context_bind_fbo(context, target, entry->id);
 479     context_clean_fbo_attachments(gl_info, target);
 480
 481     context_generate_fbo_key(context, &entry->key, render_targets, depth_stencil, color_location, ds_location);
 482     entry->flags = 0;
 483     if (depth_stencil)
 484     {
 485         if (depth_stencil->container->resource.format_flags & WINED3DFMT_FLAG_DEPTH)
 486             entry->flags |= WINED3D_FBO_ENTRY_FLAG_DEPTH;
 487         if (depth_stencil->container->resource.format_flags & WINED3DFMT_FLAG_STENCIL)
 488             entry->flags |= WINED3D_FBO_ENTRY_FLAG_STENCIL;
 489     }
 490 }
 491
 492 /* Context activation is done by the caller. */
 493 static void context_destroy_fbo_entry(struct wined3d_context *context, struct fbo_entry *entry)
 494 {
 495     if (entry->id)
 496     {
 497         TRACE("Destroy FBO %u.\n", entry->id);
 498         context_destroy_fbo(context, entry->id);
 499     }
 500     --context->fbo_entry_count;
 501     list_remove(&entry->entry);
 502     HeapFree(GetProcessHeap(), 0, entry);
 503 }
 504
 505 /* Context activation is done by the caller. */
 506 static struct fbo_entry *context_find_fbo_entry(struct wined3d_context *context, GLenum target,
 507         struct wined3d_surface **render_targets, struct wined3d_surface *depth_stencil,
 508         DWORD color_location, DWORD ds_location)
 509 {
 510     const struct wined3d_gl_info *gl_info = context->gl_info;
 511     unsigned int object_count = gl_info->limits.buffers + 1;
 512     struct wined3d_texture *rt_texture, *ds_texture;
 513     struct fbo_entry *entry;
 514     unsigned int i;
 515
 516     if (depth_stencil && render_targets[0])
 517     {
 518         rt_texture = render_targets[0]->container;
 519         ds_texture = depth_stencil->container;
 520
 521         if (wined3d_texture_get_level_width(ds_texture, depth_stencil->texture_level)
 522                 < wined3d_texture_get_level_width(rt_texture, render_targets[0]->texture_level)
 523                 || wined3d_texture_get_level_height(ds_texture, depth_stencil->texture_level)
 524                 < wined3d_texture_get_level_height(rt_texture, render_targets[0]->texture_level))
 525         {
 526             WARN("Depth stencil is smaller than the primary color buffer, disabling.\n");
 527             depth_stencil = NULL;
 528         }
 529         else if (ds_texture->resource.multisample_type != rt_texture->resource.multisample_type
 530                 || ds_texture->resource.multisample_quality != rt_texture->resource.multisample_quality)
 531         {
 532             WARN("Color multisample type %u and quality %u, depth stencil has %u and %u, disabling ds buffer.\n",
 533                     rt_texture->resource.multisample_type, rt_texture->resource.multisample_quality,
 534                     ds_texture->resource.multisample_type, ds_texture->resource.multisample_quality);
 535             depth_stencil = NULL;
 536         }
 537         else
 538             surface_set_compatible_renderbuffer(depth_stencil, render_targets[0]);
 539     }
 540
 541     context_generate_fbo_key(context, context->fbo_key, render_targets, depth_stencil, color_location,
 542             ds_location);
 543
 544     if (TRACE_ON(d3d))
 545     {
 546         TRACE("Dumping FBO attachments:\n");
 547         for (i = 0; i < gl_info->limits.buffers; ++i)
 548         {
 549             if (render_targets[i])
 550             {
 551                 rt_texture = render_targets[i]->container;
 552                 TRACE("    Color attachment %u: %p format %s, %s %u, %ux%u, %u samples.\n",
 553                         i, render_targets[i], debug_d3dformat(rt_texture->resource.format->id),
 554                         context->fbo_key->rb_namespace & (1 << (i + 1)) ? "renderbuffer" : "texture",
 555                         context->fbo_key->objects[i + 1].object,
 556                         wined3d_texture_get_level_pow2_width(rt_texture, render_targets[i]->texture_level),
 557                         wined3d_texture_get_level_pow2_height(rt_texture, render_targets[i]->texture_level),
 558                         rt_texture->resource.multisample_type);
 559             }
 560         }
 561         if (depth_stencil)
 562         {
 563             ds_texture = depth_stencil->container;
 564             TRACE("    Depth attachment: %p format %s, %s %u, %ux%u, %u samples.\n",
 565                     depth_stencil, debug_d3dformat(ds_texture->resource.format->id),
 566                     context->fbo_key->rb_namespace & (1 << 0) ? "renderbuffer" : "texture",
 567                     context->fbo_key->objects[0].object,
 568                     wined3d_texture_get_level_pow2_width(ds_texture, depth_stencil->texture_level),
 569                     wined3d_texture_get_level_pow2_height(ds_texture, depth_stencil->texture_level),
 570                     ds_texture->resource.multisample_type);
 571         }
 572     }
 573
 574     LIST_FOR_EACH_ENTRY(entry, &context->fbo_list, struct fbo_entry, entry)
 575     {
 576         if (memcmp(context->fbo_key, &entry->key, FIELD_OFFSET(struct wined3d_fbo_entry_key, objects[object_count])))
 577             continue;
 578
 579         list_remove(&entry->entry);
 580         list_add_head(&context->fbo_list, &entry->entry);
 581         return entry;
 582     }
 583
 584     if (context->fbo_entry_count < WINED3D_MAX_FBO_ENTRIES)
 585     {
 586         entry = context_create_fbo_entry(context, render_targets, depth_stencil, color_location, ds_location);
 587         list_add_head(&context->fbo_list, &entry->entry);
 588         ++context->fbo_entry_count;
 589     }
 590     else
 591     {
 592         entry = LIST_ENTRY(list_tail(&context->fbo_list), struct fbo_entry, entry);
 593         context_reuse_fbo_entry(context, target, render_targets, depth_stencil, color_location, ds_location, entry);
 594         list_remove(&entry->entry);
 595         list_add_head(&context->fbo_list, &entry->entry);
 596     }
 597
 598     return entry;
 599 }
 600
 601 /* Context activation is done by the caller. */
 602 static void context_apply_fbo_entry(struct wined3d_context *context, GLenum target, struct fbo_entry *entry)
 603 {
 604     const struct wined3d_gl_info *gl_info = context->gl_info;
 605     unsigned int i;
 606     GLuint read_binding, draw_binding;
 607
 608     if (entry->flags & WINED3D_FBO_ENTRY_FLAG_ATTACHED)
 609     {
 610         context_bind_fbo(context, target, entry->id);
 611         return;
 612     }
 613
 614     read_binding = context->fbo_read_binding;
 615     draw_binding = context->fbo_draw_binding;
 616     context_bind_fbo(context, GL_FRAMEBUFFER, entry->id);
 617
 618     /* Apply render targets */
 619     for (i = 0; i < gl_info->limits.buffers; ++i)
 620     {
 621         context_attach_surface_fbo(context, target, i, &entry->key.objects[i + 1],
 622                 entry->key.rb_namespace & (1 << (i + 1)));
 623     }
 624
 625     context_attach_depth_stencil_fbo(context, target, &entry->key.objects[0],
 626             entry->key.rb_namespace & 0x1, entry->flags);
 627
 628     /* Set valid read and draw buffer bindings to satisfy pedantic pre-ES2_compatibility
 629      * GL contexts requirements. */
 630     gl_info->gl_ops.gl.p_glReadBuffer(GL_NONE);
 631     context_set_draw_buffer(context, GL_NONE);
 632     if (target != GL_FRAMEBUFFER)
 633     {
 634         if (target == GL_READ_FRAMEBUFFER)
 635             context_bind_fbo(context, GL_DRAW_FRAMEBUFFER, draw_binding);
 636         else
 637             context_bind_fbo(context, GL_READ_FRAMEBUFFER, read_binding);
 638     }
 639
 640     entry->flags |= WINED3D_FBO_ENTRY_FLAG_ATTACHED;
 641 }
 642
 643 /* Context activation is done by the caller. */
 644 static void context_apply_fbo_state(struct wined3d_context *context, GLenum target,
 645         struct wined3d_surface **render_targets, struct wined3d_surface *depth_stencil,
 646         DWORD color_location, DWORD ds_location)
 647 {
 648     struct fbo_entry *entry, *entry2;
 649
 650     LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_destroy_list, struct fbo_entry, entry)
 651     {
 652         context_destroy_fbo_entry(context, entry);
 653     }
 654
 655     if (context->rebind_fbo)
 656     {
 657         context_bind_fbo(context, GL_FRAMEBUFFER, 0);
 658         context->rebind_fbo = FALSE;
 659     }
 660
 661     if (color_location == WINED3D_LOCATION_DRAWABLE)
 662     {
 663         context->current_fbo = NULL;
 664         context_bind_fbo(context, target, 0);
 665     }
 666     else
 667     {
 668         context->current_fbo = context_find_fbo_entry(context, target, render_targets, depth_stencil,
 669                 color_location, ds_location);
 670         context_apply_fbo_entry(context, target, context->current_fbo);
 671     }
 672 }
 673
 674 /* Context activation is done by the caller. */
 675 void context_apply_fbo_state_blit(struct wined3d_context *context, GLenum target,
 676         struct wined3d_surface *render_target, struct wined3d_surface *depth_stencil, DWORD location)
 677 {
 678     UINT clear_size = (context->gl_info->limits.buffers - 1) * sizeof(*context->blit_targets);
 679
 680     context->blit_targets[0] = render_target;
 681     if (clear_size)
 682         memset(&context->blit_targets[1], 0, clear_size);
 683     context_apply_fbo_state(context, target, context->blit_targets, depth_stencil, location, location);
 684 }
 685
 686 /* Context activation is done by the caller. */
 687 void context_alloc_occlusion_query(struct wined3d_context *context, struct wined3d_occlusion_query *query)
 688 {
 689     const struct wined3d_gl_info *gl_info = context->gl_info;
 690
 691     if (context->free_occlusion_query_count)
 692     {
 693         query->id = context->free_occlusion_queries[--context->free_occlusion_query_count];
 694     }
 695     else
 696     {
 697         if (gl_info->supported[ARB_OCCLUSION_QUERY])
 698         {
 699             GL_EXTCALL(glGenQueries(1, &query->id));
 700             checkGLcall("glGenQueries");
 701
 702             TRACE("Allocated occlusion query %u in context %p.\n", query->id, context);
 703         }
 704         else
 705         {
 706             WARN("Occlusion queries not supported, not allocating query id.\n");
 707             query->id = 0;
 708         }
 709     }
 710
 711     query->context = context;
 712     list_add_head(&context->occlusion_queries, &query->entry);
 713 }
 714
 715 void context_free_occlusion_query(struct wined3d_occlusion_query *query)
 716 {
 717     struct wined3d_context *context = query->context;
 718
 719     list_remove(&query->entry);
 720     query->context = NULL;
 721
 722     if (context->free_occlusion_query_count >= context->free_occlusion_query_size - 1)
 723     {
 724         UINT new_size = context->free_occlusion_query_size << 1;
 725         GLuint *new_data = HeapReAlloc(GetProcessHeap(), 0, context->free_occlusion_queries,
 726                 new_size * sizeof(*context->free_occlusion_queries));
 727
 728         if (!new_data)
 729         {
 730             ERR("Failed to grow free list, leaking query %u in context %p.\n", query->id, context);
 731             return;
 732         }
 733
 734         context->free_occlusion_query_size = new_size;
 735         context->free_occlusion_queries = new_data;
 736     }
 737
 738     context->free_occlusion_queries[context->free_occlusion_query_count++] = query->id;
 739 }
 740
 741 /* Context activation is done by the caller. */
 742 void context_alloc_event_query(struct wined3d_context *context, struct wined3d_event_query *query)
 743 {
 744     const struct wined3d_gl_info *gl_info = context->gl_info;
 745
 746     if (context->free_event_query_count)
 747     {
 748         query->object = context->free_event_queries[--context->free_event_query_count];
 749     }
 750     else
 751     {
 752         if (gl_info->supported[ARB_SYNC])
 753         {
 754             /* Using ARB_sync, not much to do here. */
 755             query->object.sync = NULL;
 756             TRACE("Allocated event query %p in context %p.\n", query->object.sync, context);
 757         }
 758         else if (gl_info->supported[APPLE_FENCE])
 759         {
 760             GL_EXTCALL(glGenFencesAPPLE(1, &query->object.id));
 761             checkGLcall("glGenFencesAPPLE");
 762
 763             TRACE("Allocated event query %u in context %p.\n", query->object.id, context);
 764         }
 765         else if(gl_info->supported[NV_FENCE])
 766         {
 767             GL_EXTCALL(glGenFencesNV(1, &query->object.id));
 768             checkGLcall("glGenFencesNV");
 769
 770             TRACE("Allocated event query %u in context %p.\n", query->object.id, context);
 771         }
 772         else
 773         {
 774             WARN("Event queries not supported, not allocating query id.\n");
 775             query->object.id = 0;
 776         }
 777     }
 778
 779     query->context = context;
 780     list_add_head(&context->event_queries, &query->entry);
 781 }
 782
 783 void context_free_event_query(struct wined3d_event_query *query)
 784 {
 785     struct wined3d_context *context = query->context;
 786
 787     list_remove(&query->entry);
 788     query->context = NULL;
 789
 790     if (context->free_event_query_count >= context->free_event_query_size - 1)
 791     {
 792         UINT new_size = context->free_event_query_size << 1;
 793         union wined3d_gl_query_object *new_data = HeapReAlloc(GetProcessHeap(), 0, context->free_event_queries,
 794                 new_size * sizeof(*context->free_event_queries));
 795
 796         if (!new_data)
 797         {
 798             ERR("Failed to grow free list, leaking query %u in context %p.\n", query->object.id, context);
 799             return;
 800         }
 801
 802         context->free_event_query_size = new_size;
 803         context->free_event_queries = new_data;
 804     }
 805
 806     context->free_event_queries[context->free_event_query_count++] = query->object;
 807 }
 808
 809 /* Context activation is done by the caller. */
 810 void context_alloc_timestamp_query(struct wined3d_context *context, struct wined3d_timestamp_query *query)
 811 {
 812     const struct wined3d_gl_info *gl_info = context->gl_info;
 813
 814     if (context->free_timestamp_query_count)
 815     {
 816         query->id = context->free_timestamp_queries[--context->free_timestamp_query_count];
 817     }
 818     else
 819     {
 820         GL_EXTCALL(glGenQueries(1, &query->id));
 821         checkGLcall("glGenQueries");
 822
 823         TRACE("Allocated timestamp query %u in context %p.\n", query->id, context);
 824     }
 825
 826     query->context = context;
 827     list_add_head(&context->timestamp_queries, &query->entry);
 828 }
 829
 830 void context_free_timestamp_query(struct wined3d_timestamp_query *query)
 831 {
 832     struct wined3d_context *context = query->context;
 833
 834     list_remove(&query->entry);
 835     query->context = NULL;
 836
 837     if (context->free_timestamp_query_count >= context->free_timestamp_query_size - 1)
 838     {
 839         UINT new_size = context->free_timestamp_query_size << 1;
 840         GLuint *new_data = HeapReAlloc(GetProcessHeap(), 0, context->free_timestamp_queries,
 841                 new_size * sizeof(*context->free_timestamp_queries));
 842
 843         if (!new_data)
 844         {
 845             ERR("Failed to grow free list, leaking query %u in context %p.\n", query->id, context);
 846             return;
 847         }
 848
 849         context->free_timestamp_query_size = new_size;
 850         context->free_timestamp_queries = new_data;
 851     }
 852
 853     context->free_timestamp_queries[context->free_timestamp_query_count++] = query->id;
 854 }
 855
 856 typedef void (context_fbo_entry_func_t)(struct wined3d_context *context, struct fbo_entry *entry);
 857
 858 static void context_enum_fbo_entries(const struct wined3d_device *device,
 859         GLuint name, BOOL rb_namespace, context_fbo_entry_func_t *callback)
 860 {
 861     UINT i;
 862
 863     for (i = 0; i < device->context_count; ++i)
 864     {
 865         struct wined3d_context *context = device->contexts[i];
 866         const struct wined3d_gl_info *gl_info = context->gl_info;
 867         struct fbo_entry *entry, *entry2;
 868
 869         LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_list, struct fbo_entry, entry)
 870         {
 871             UINT j;
 872
 873             for (j = 0; j < gl_info->limits.buffers + 1; ++j)
 874             {
 875                 if (entry->key.objects[j].object == name
 876                         && !(entry->key.rb_namespace & (1 << j)) == !rb_namespace)
 877                 {
 878                     callback(context, entry);
 879                     break;
 880                 }
 881             }
 882         }
 883     }
 884 }
 885
 886 static void context_queue_fbo_entry_destruction(struct wined3d_context *context, struct fbo_entry *entry)
 887 {
 888     list_remove(&entry->entry);
 889     list_add_head(&context->fbo_destroy_list, &entry->entry);
 890 }
 891
 892 void context_resource_released(const struct wined3d_device *device,
 893         struct wined3d_resource *resource, enum wined3d_resource_type type)
 894 {
 895     struct wined3d_texture *texture;
 896     UINT i;
 897
 898     if (!device->d3d_initialized)
 899         return;
 900
 901     switch (type)
 902     {
 903         case WINED3D_RTYPE_TEXTURE_2D:
 904         case WINED3D_RTYPE_TEXTURE_3D:
 905             texture = texture_from_resource(resource);
 906
 907             for (i = 0; i < device->context_count; ++i)
 908             {
 909                 struct wined3d_context *context = device->contexts[i];
 910                 if (context->current_rt.texture == texture)
 911                 {
 912                     context->current_rt.texture = NULL;
 913                     context->current_rt.sub_resource_idx = 0;
 914                 }
 915             }
 916             break;
 917
 918         default:
 919             break;
 920     }
 921 }
 922
 923 void context_gl_resource_released(struct wined3d_device *device,
 924         GLuint name, BOOL rb_namespace)
 925 {
 926     context_enum_fbo_entries(device, name, rb_namespace, context_queue_fbo_entry_destruction);
 927 }
 928
 929 void context_surface_update(struct wined3d_context *context, const struct wined3d_surface *surface)
 930 {
 931     const struct wined3d_gl_info *gl_info = context->gl_info;
 932     struct fbo_entry *entry = context->current_fbo;
 933     unsigned int i;
 934
 935     if (!entry || context->rebind_fbo) return;
 936
 937     for (i = 0; i < gl_info->limits.buffers + 1; ++i)
 938     {
 939         if (surface->container->texture_rgb.name == entry->key.objects[i].object
 940                 || surface->container->texture_srgb.name == entry->key.objects[i].object)
 941         {
 942             TRACE("Updated surface %p is bound as attachment %u to the current FBO.\n", surface, i);
 943             context->rebind_fbo = TRUE;
 944             return;
 945         }
 946     }
 947 }
 948
 949 static BOOL context_restore_pixel_format(struct wined3d_context *ctx)
 950 {
 951     const struct wined3d_gl_info *gl_info = ctx->gl_info;
 952     BOOL ret = FALSE;
 953
 954     if (ctx->restore_pf && IsWindow(ctx->restore_pf_win))
 955     {
 956         if (ctx->gl_info->supported[WGL_WINE_PIXEL_FORMAT_PASSTHROUGH])
 957         {
 958             HDC dc = GetDCEx(ctx->restore_pf_win, 0, DCX_USESTYLE | DCX_CACHE);
 959             if (dc)
 960             {
 961                 if (!(ret = GL_EXTCALL(wglSetPixelFormatWINE(dc, ctx->restore_pf))))
 962                 {
 963                     ERR("wglSetPixelFormatWINE failed to restore pixel format %d on window %p.\n",
 964                             ctx->restore_pf, ctx->restore_pf_win);
 965                 }
 966                 ReleaseDC(ctx->restore_pf_win, dc);
 967             }
 968         }
 969         else
 970         {
 971             ERR("can't restore pixel format %d on window %p\n", ctx->restore_pf, ctx->restore_pf_win);
 972         }
 973     }
 974
 975     ctx->restore_pf = 0;
 976     ctx->restore_pf_win = NULL;
 977     return ret;
 978 }
 979
 980 static BOOL context_set_pixel_format(struct wined3d_context *context, HDC dc, BOOL private, int format)
 981 {
 982     const struct wined3d_gl_info *gl_info = context->gl_info;
 983     int current;
 984
 985     if (dc == context->hdc && context->hdc_is_private && context->hdc_has_format)
 986         return TRUE;
 987
 988     current = gl_info->gl_ops.wgl.p_wglGetPixelFormat(dc);
 989     if (current == format) goto success;
 990
 991     if (!current)
 992     {
 993         if (!SetPixelFormat(dc, format, NULL))
 994         {
 995             /* This may also happen if the dc belongs to a destroyed window. */
 996             WARN("Failed to set pixel format %d on device context %p, last error %#x.\n",
 997                     format, dc, GetLastError());
 998             return FALSE;
 999         }
1000
1001         context->restore_pf = 0;
1002         context->restore_pf_win = private ? NULL : WindowFromDC(dc);
1003         goto success;
1004     }
1005
1006     /* By default WGL doesn't allow pixel format adjustments but we need it
1007      * here. For this reason there's a Wine specific wglSetPixelFormat()
1008      * which allows us to set the pixel format multiple times. Only use it
1009      * when really needed. */
1010     if (gl_info->supported[WGL_WINE_PIXEL_FORMAT_PASSTHROUGH])
1011     {
1012         HWND win;
1013
1014         if (!GL_EXTCALL(wglSetPixelFormatWINE(dc, format)))
1015         {
1016             ERR("wglSetPixelFormatWINE failed to set pixel format %d on device context %p.\n",
1017                     format, dc);
1018             return FALSE;
1019         }
1020
1021         win = private ? NULL : WindowFromDC(dc);
1022         if (win != context->restore_pf_win)
1023         {
1024             context_restore_pixel_format(context);
1025
1026             context->restore_pf = private ? 0 : current;
1027             context->restore_pf_win = win;
1028         }
1029
1030         goto success;
1031     }
1032
1033     /* OpenGL doesn't allow pixel format adjustments. Print an error and
1034      * continue using the old format. There's a big chance that the old
1035      * format works although with a performance hit and perhaps rendering
1036      * errors. */
1037     ERR("Unable to set pixel format %d on device context %p. Already using format %d.\n",
1038             format, dc, current);
1039     return TRUE;
1040
1041 success:
1042     if (dc == context->hdc && context->hdc_is_private)
1043         context->hdc_has_format = TRUE;
1044     return TRUE;
1045 }
1046
1047 static BOOL context_set_gl_context(struct wined3d_context *ctx)
1048 {
1049     struct wined3d_swapchain *swapchain = ctx->swapchain;
1050     BOOL backup = FALSE;
1051
1052     if (!context_set_pixel_format(ctx, ctx->hdc, ctx->hdc_is_private, ctx->pixel_format))
1053     {
1054         WARN("Failed to set pixel format %d on device context %p.\n",
1055                 ctx->pixel_format, ctx->hdc);
1056         backup = TRUE;
1057     }
1058
1059     if (backup || !wglMakeCurrent(ctx->hdc, ctx->glCtx))
1060     {
1061         HDC dc;
1062
1063         WARN("Failed to make GL context %p current on device context %p, last error %#x.\n",
1064                 ctx->glCtx, ctx->hdc, GetLastError());
1065         ctx->valid = 0;
1066         WARN("Trying fallback to the backup window.\n");
1067
1068         /* FIXME: If the context is destroyed it's no longer associated with
1069          * a swapchain, so we can't use the swapchain to get a backup dc. To
1070          * make this work windowless contexts would need to be handled by the
1071          * device. */
1072         if (ctx->destroyed || !swapchain)
1073         {
1074             FIXME("Unable to get backup dc for destroyed context %p.\n", ctx);
1075             context_set_current(NULL);
1076             return FALSE;
1077         }
1078
1079         if (!(dc = swapchain_get_backup_dc(swapchain)))
1080         {
1081             context_set_current(NULL);
1082             return FALSE;
1083         }
1084
1085         if (!context_set_pixel_format(ctx, dc, TRUE, ctx->pixel_format))
1086         {
1087             ERR("Failed to set pixel format %d on device context %p.\n",
1088                     ctx->pixel_format, dc);
1089             context_set_current(NULL);
1090             return FALSE;
1091         }
1092
1093         if (!wglMakeCurrent(dc, ctx->glCtx))
1094         {
1095             ERR("Fallback to backup window (dc %p) failed too, last error %#x.\n",
1096                     dc, GetLastError());
1097             context_set_current(NULL);
1098             return FALSE;
1099         }
1100
1101         ctx->valid = 1;
1102     }
1103     ctx->needs_set = 0;
1104     return TRUE;
1105 }
1106
1107 static void context_restore_gl_context(const struct wined3d_gl_info *gl_info, HDC dc, HGLRC gl_ctx)
1108 {
1109     if (!wglMakeCurrent(dc, gl_ctx))
1110     {
1111         ERR("Failed to restore GL context %p on device context %p, last error %#x.\n",
1112                 gl_ctx, dc, GetLastError());
1113         context_set_current(NULL);
1114     }
1115 }
1116
1117 static void context_update_window(struct wined3d_context *context, HWND win_handle)
1118 {
1119     if (context->win_handle == win_handle)
1120         return;
1121
1122     TRACE("Updating context %p window from %p to %p.\n",
1123             context, context->win_handle, win_handle);
1124
1125     if (context->hdc)
1126         wined3d_release_dc(context->win_handle, context->hdc);
1127
1128     context->win_handle = win_handle;
1129     context->hdc_is_private = FALSE;
1130     context->hdc_has_format = FALSE;
1131     context->needs_set = 1;
1132     context->valid = 1;
1133
1134     if (!(context->hdc = GetDCEx(context->win_handle, 0, DCX_USESTYLE | DCX_CACHE)))
1135     {
1136         ERR("Failed to get a device context for window %p.\n", context->win_handle);
1137         context->valid = 0;
1138     }
1139 }
1140
1141 static void context_destroy_gl_resources(struct wined3d_context *context)
1142 {
1143     const struct wined3d_gl_info *gl_info = context->gl_info;
1144     struct wined3d_timestamp_query *timestamp_query;
1145     struct wined3d_occlusion_query *occlusion_query;
1146     struct wined3d_event_query *event_query;
1147     struct fbo_entry *entry, *entry2;
1148     HGLRC restore_ctx;
1149     HDC restore_dc;
1150     unsigned int i;
1151
1152     restore_ctx = wglGetCurrentContext();
1153     restore_dc = wglGetCurrentDC();
1154
1155     if (restore_ctx == context->glCtx)
1156         restore_ctx = NULL;
1157     else if (context->valid)
1158         context_set_gl_context(context);
1159
1160     LIST_FOR_EACH_ENTRY(timestamp_query, &context->timestamp_queries, struct wined3d_timestamp_query, entry)
1161     {
1162         if (context->valid)
1163             GL_EXTCALL(glDeleteQueries(1, &timestamp_query->id));
1164         timestamp_query->context = NULL;
1165     }
1166
1167     LIST_FOR_EACH_ENTRY(occlusion_query, &context->occlusion_queries, struct wined3d_occlusion_query, entry)
1168     {
1169         if (context->valid && gl_info->supported[ARB_OCCLUSION_QUERY])
1170             GL_EXTCALL(glDeleteQueries(1, &occlusion_query->id));
1171         occlusion_query->context = NULL;
1172     }
1173
1174     LIST_FOR_EACH_ENTRY(event_query, &context->event_queries, struct wined3d_event_query, entry)
1175     {
1176         if (context->valid)
1177         {
1178             if (gl_info->supported[ARB_SYNC])
1179             {
1180                 if (event_query->object.sync) GL_EXTCALL(glDeleteSync(event_query->object.sync));
1181             }
1182             else if (gl_info->supported[APPLE_FENCE]) GL_EXTCALL(glDeleteFencesAPPLE(1, &event_query->object.id));
1183             else if (gl_info->supported[NV_FENCE]) GL_EXTCALL(glDeleteFencesNV(1, &event_query->object.id));
1184         }
1185         event_query->context = NULL;
1186     }
1187
1188     LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_destroy_list, struct fbo_entry, entry)
1189     {
1190         if (!context->valid) entry->id = 0;
1191         context_destroy_fbo_entry(context, entry);
1192     }
1193
1194     LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, &context->fbo_list, struct fbo_entry, entry)
1195     {
1196         if (!context->valid) entry->id = 0;
1197         context_destroy_fbo_entry(context, entry);
1198     }
1199
1200     if (context->valid)
1201     {
1202         if (context->dummy_arbfp_prog)
1203         {
1204             GL_EXTCALL(glDeleteProgramsARB(1, &context->dummy_arbfp_prog));
1205         }
1206
1207         if (gl_info->supported[ARB_TIMER_QUERY])
1208             GL_EXTCALL(glDeleteQueries(context->free_timestamp_query_count, context->free_timestamp_queries));
1209
1210         if (gl_info->supported[ARB_OCCLUSION_QUERY])
1211             GL_EXTCALL(glDeleteQueries(context->free_occlusion_query_count, context->free_occlusion_queries));
1212
1213         if (gl_info->supported[ARB_SYNC])
1214         {
1215             for (i = 0; i < context->free_event_query_count; ++i)
1216             {
1217                 GL_EXTCALL(glDeleteSync(context->free_event_queries[i].sync));
1218             }
1219         }
1220         else if (gl_info->supported[APPLE_FENCE])
1221         {
1222             for (i = 0; i < context->free_event_query_count; ++i)
1223             {
1224                 GL_EXTCALL(glDeleteFencesAPPLE(1, &context->free_event_queries[i].id));
1225             }
1226         }
1227         else if (gl_info->supported[NV_FENCE])
1228         {
1229             for (i = 0; i < context->free_event_query_count; ++i)
1230             {
1231                 GL_EXTCALL(glDeleteFencesNV(1, &context->free_event_queries[i].id));
1232             }
1233         }
1234
1235         checkGLcall("context cleanup");
1236     }
1237
1238     HeapFree(GetProcessHeap(), 0, context->free_timestamp_queries);
1239     HeapFree(GetProcessHeap(), 0, context->free_occlusion_queries);
1240     HeapFree(GetProcessHeap(), 0, context->free_event_queries);
1241
1242     context_restore_pixel_format(context);
1243     if (restore_ctx)
1244     {
1245         context_restore_gl_context(gl_info, restore_dc, restore_ctx);
1246     }
1247     else if (wglGetCurrentContext() && !wglMakeCurrent(NULL, NULL))
1248     {
1249         ERR("Failed to disable GL context.\n");
1250     }
1251
1252     wined3d_release_dc(context->win_handle, context->hdc);
1253
1254     if (!wglDeleteContext(context->glCtx))
1255     {
1256         DWORD err = GetLastError();
1257         ERR("wglDeleteContext(%p) failed, last error %#x.\n", context->glCtx, err);
1258     }
1259 }
1260
1261 DWORD context_get_tls_idx(void)
1262 {
1263     return wined3d_context_tls_idx;
1264 }
1265
1266 void context_set_tls_idx(DWORD idx)
1267 {
1268     wined3d_context_tls_idx = idx;
1269 }
1270
1271 struct wined3d_context *context_get_current(void)
1272 {
1273     return TlsGetValue(wined3d_context_tls_idx);
1274 }
1275
1276 BOOL context_set_current(struct wined3d_context *ctx)
1277 {
1278     struct wined3d_context *old = context_get_current();
1279
1280     if (old == ctx)
1281     {
1282         TRACE("Already using D3D context %p.\n", ctx);
1283         return TRUE;
1284     }
1285
1286     if (old)
1287     {
1288         if (old->destroyed)
1289         {
1290             TRACE("Switching away from destroyed context %p.\n", old);
1291             context_destroy_gl_resources(old);
1292             HeapFree(GetProcessHeap(), 0, (void *)old->gl_info);
1293             HeapFree(GetProcessHeap(), 0, old);
1294         }
1295         else
1296         {
1297             if (wglGetCurrentContext())
1298             {
1299                 const struct wined3d_gl_info *gl_info = old->gl_info;
1300                 TRACE("Flushing context %p before switching to %p.\n", old, ctx);
1301                 gl_info->gl_ops.gl.p_glFlush();
1302             }
1303             old->current = 0;
1304         }
1305     }
1306
1307     if (ctx)
1308     {
1309         if (!ctx->valid)
1310         {
1311             ERR("Trying to make invalid context %p current\n", ctx);
1312             return FALSE;
1313         }
1314
1315         TRACE("Switching to D3D context %p, GL context %p, device context %p.\n", ctx, ctx->glCtx, ctx->hdc);
1316         if (!context_set_gl_context(ctx))
1317             return FALSE;
1318         ctx->current = 1;
1319     }
1320     else if (wglGetCurrentContext())
1321     {
1322         TRACE("Clearing current D3D context.\n");
1323         if (!wglMakeCurrent(NULL, NULL))
1324         {
1325             DWORD err = GetLastError();
1326             ERR("Failed to clear current GL context, last error %#x.\n", err);
1327             TlsSetValue(wined3d_context_tls_idx, NULL);
1328             return FALSE;
1329         }
1330     }
1331
1332     return TlsSetValue(wined3d_context_tls_idx, ctx);
1333 }
1334
1335 void context_release(struct wined3d_context *context)
1336 {
1337     TRACE("Releasing context %p, level %u.\n", context, context->level);
1338
1339     if (WARN_ON(d3d))
1340     {
1341         if (!context->level)
1342             WARN("Context %p is not active.\n", context);
1343         else if (context != context_get_current())
1344             WARN("Context %p is not the current context.\n", context);
1345     }
1346
1347     if (!--context->level)
1348     {
1349         if (context_restore_pixel_format(context))
1350             context->needs_set = 1;
1351         if (context->restore_ctx)
1352         {
1353             TRACE("Restoring GL context %p on device context %p.\n", context->restore_ctx, context->restore_dc);
1354             context_restore_gl_context(context->gl_info, context->restore_dc, context->restore_ctx);
1355             context->restore_ctx = NULL;
1356             context->restore_dc = NULL;
1357         }
1358
1359         if (context->destroy_delayed)
1360         {
1361             TRACE("Destroying context %p.\n", context);
1362             context_destroy(context->device, context);
1363         }
1364     }
1365 }
1366
1367 /* This is used when a context for render target A is active, but a separate context is
1368  * needed to access the WGL framebuffer for render target B. Re-acquire a context for rt
1369  * A to avoid breaking caller code. */
1370 void context_restore(struct wined3d_context *context, struct wined3d_surface *restore)
1371 {
1372     if (context->current_rt.texture != restore->container
1373             || context->current_rt.sub_resource_idx != surface_get_sub_resource_idx(restore))
1374     {
1375         context_release(context);
1376         context = context_acquire(restore->container->resource.device, restore);
1377     }
1378
1379     context_release(context);
1380 }
1381
1382 static void context_enter(struct wined3d_context *context)
1383 {
1384     TRACE("Entering context %p, level %u.\n", context, context->level + 1);
1385
1386     if (!context->level++)
1387     {
1388         const struct wined3d_context *current_context = context_get_current();
1389         HGLRC current_gl = wglGetCurrentContext();
1390
1391         if (current_gl && (!current_context || current_context->glCtx != current_gl))
1392         {
1393             TRACE("Another GL context (%p on device context %p) is already current.\n",
1394                     current_gl, wglGetCurrentDC());
1395             context->restore_ctx = current_gl;
1396             context->restore_dc = wglGetCurrentDC();
1397             context->needs_set = 1;
1398         }
1399         else if (!context->needs_set && !(context->hdc_is_private && context->hdc_has_format)
1400                     && context->pixel_format != context->gl_info->gl_ops.wgl.p_wglGetPixelFormat(context->hdc))
1401             context->needs_set = 1;
1402     }
1403 }
1404
1405 void context_invalidate_state(struct wined3d_context *context, DWORD state)
1406 {
1407     DWORD rep = context->state_table[state].representative;
1408     DWORD idx;
1409     BYTE shift;
1410
1411     if (isStateDirty(context, rep)) return;
1412
1413     context->dirtyArray[context->numDirtyEntries++] = rep;
1414     idx = rep / (sizeof(*context->isStateDirty) * CHAR_BIT);
1415     shift = rep & ((sizeof(*context->isStateDirty) * CHAR_BIT) - 1);
1416     context->isStateDirty[idx] |= (1u << shift);
1417 }
1418
1419 /* This function takes care of wined3d pixel format selection. */
1420 static int context_choose_pixel_format(const struct wined3d_device *device, HDC hdc,
1421         const struct wined3d_format *color_format, const struct wined3d_format *ds_format,
1422         BOOL auxBuffers, BOOL findCompatible)
1423 {
1424     int iPixelFormat=0;
1425     unsigned int current_value;
1426     unsigned int cfg_count = device->adapter->cfg_count;
1427     unsigned int i;
1428
1429     TRACE("device %p, dc %p, color_format %s, ds_format %s, aux_buffers %#x, find_compatible %#x.\n",
1430             device, hdc, debug_d3dformat(color_format->id), debug_d3dformat(ds_format->id),
1431             auxBuffers, findCompatible);
1432
1433     current_value = 0;
1434     for (i = 0; i < cfg_count; ++i)
1435     {
1436         const struct wined3d_pixel_format *cfg = &device->adapter->cfgs[i];
1437         unsigned int value;
1438
1439         /* For now only accept RGBA formats. Perhaps some day we will
1440          * allow floating point formats for pbuffers. */
1441         if (cfg->iPixelType != WGL_TYPE_RGBA_ARB)
1442             continue;
1443         /* In window mode we need a window drawable format and double buffering. */
1444         if (!(cfg->windowDrawable && cfg->doubleBuffer))
1445             continue;
1446         if (cfg->redSize < color_format->red_size)
1447             continue;
1448         if (cfg->greenSize < color_format->green_size)
1449             continue;
1450         if (cfg->blueSize < color_format->blue_size)
1451             continue;
1452         if (cfg->alphaSize < color_format->alpha_size)
1453             continue;
1454         if (cfg->depthSize < ds_format->depth_size)
1455             continue;
1456         if (ds_format->stencil_size && cfg->stencilSize != ds_format->stencil_size)
1457             continue;
1458         /* Check multisampling support. */
1459         if (cfg->numSamples)
1460             continue;
1461
1462         value = 1;
1463         /* We try to locate a format which matches our requirements exactly. In case of
1464          * depth it is no problem to emulate 16-bit using e.g. 24-bit, so accept that. */
1465         if (cfg->depthSize == ds_format->depth_size)
1466             value += 1;
1467         if (cfg->stencilSize == ds_format->stencil_size)
1468             value += 2;
1469         if (cfg->alphaSize == color_format->alpha_size)
1470             value += 4;
1471         /* We like to have aux buffers in backbuffer mode */
1472         if (auxBuffers && cfg->auxBuffers)
1473             value += 8;
1474         if (cfg->redSize == color_format->red_size
1475                 && cfg->greenSize == color_format->green_size
1476                 && cfg->blueSize == color_format->blue_size)
1477             value += 16;
1478
1479         if (value > current_value)
1480         {
1481             iPixelFormat = cfg->iPixelFormat;
1482             current_value = value;
1483         }
1484     }
1485
1486     /* When findCompatible is set and no suitable format was found, let ChoosePixelFormat choose a pixel format in order not to crash. */
1487     if(!iPixelFormat && !findCompatible) {
1488         ERR("Can't find a suitable iPixelFormat\n");
1489         return FALSE;
1490     } else if(!iPixelFormat) {
1491         PIXELFORMATDESCRIPTOR pfd;
1492
1493         TRACE("Falling back to ChoosePixelFormat as we weren't able to find an exactly matching pixel format\n");
1494         /* PixelFormat selection */
1495         ZeroMemory(&pfd, sizeof(pfd));
1496         pfd.nSize      = sizeof(pfd);
1497         pfd.nVersion   = 1;
1498         pfd.dwFlags    = PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER | PFD_DRAW_TO_WINDOW;/*PFD_GENERIC_ACCELERATED*/
1499         pfd.iPixelType = PFD_TYPE_RGBA;
1500         pfd.cAlphaBits = color_format->alpha_size;
1501         pfd.cColorBits = color_format->red_size + color_format->green_size
1502                 + color_format->blue_size + color_format->alpha_size;
1503         pfd.cDepthBits = ds_format->depth_size;
1504         pfd.cStencilBits = ds_format->stencil_size;
1505         pfd.iLayerType = PFD_MAIN_PLANE;
1506
1507         iPixelFormat = ChoosePixelFormat(hdc, &pfd);
1508         if(!iPixelFormat) {
1509             /* If this happens something is very wrong as ChoosePixelFormat barely fails */
1510             ERR("Can't find a suitable iPixelFormat\n");
1511             return FALSE;
1512         }
1513     }
1514
1515     TRACE("Found iPixelFormat=%d for ColorFormat=%s, DepthStencilFormat=%s\n",
1516             iPixelFormat, debug_d3dformat(color_format->id), debug_d3dformat(ds_format->id));
1517     return iPixelFormat;
1518 }
1519
1520 /* Context activation is done by the caller. */
1521 void context_bind_dummy_textures(const struct wined3d_device *device, const struct wined3d_context *context)
1522 {
1523     const struct wined3d_gl_info *gl_info = context->gl_info;
1524     unsigned int i;
1525
1526     for (i = 0; i < gl_info->limits.combined_samplers; ++i)
1527     {
1528         GL_EXTCALL(glActiveTexture(GL_TEXTURE0 + i));
1529         checkGLcall("glActiveTexture");
1530
1531         gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_2D, device->dummy_textures.tex_2d);
1532
1533         if (gl_info->supported[ARB_TEXTURE_RECTANGLE])
1534             gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_RECTANGLE_ARB, device->dummy_textures.tex_rect);
1535
1536         if (gl_info->supported[EXT_TEXTURE3D])
1537             gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_3D, device->dummy_textures.tex_3d);
1538
1539         if (gl_info->supported[ARB_TEXTURE_CUBE_MAP])
1540             gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_CUBE_MAP, device->dummy_textures.tex_cube);
1541
1542         if (gl_info->supported[EXT_TEXTURE_ARRAY])
1543             gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_2D_ARRAY, device->dummy_textures.tex_2d_array);
1544
1545         checkGLcall("Bind dummy textures");
1546     }
1547 }
1548
1549 void wined3d_check_gl_call(const struct wined3d_gl_info *gl_info,
1550         const char *file, unsigned int line, const char *name)
1551 {
1552     GLint err;
1553
1554     if (gl_info->supported[ARB_DEBUG_OUTPUT] || (err = gl_info->gl_ops.gl.p_glGetError()) == GL_NO_ERROR)
1555     {
1556         TRACE("%s call ok %s / %u.\n", name, file, line);
1557         return;
1558     }
1559
1560     do
1561     {
1562         ERR(">>>>>>> %s (%#x) from %s @ %s / %u.\n",
1563                 debug_glerror(err), err, name, file,line);
1564         err = gl_info->gl_ops.gl.p_glGetError();
1565     } while (err != GL_NO_ERROR);
1566 }
1567
1568 static BOOL context_debug_output_enabled(const struct wined3d_gl_info *gl_info)
1569 {
1570     return gl_info->supported[ARB_DEBUG_OUTPUT]
1571             && (ERR_ON(d3d) || FIXME_ON(d3d) || WARN_ON(d3d_perf));
1572 }
1573
1574 static void WINE_GLAPI wined3d_debug_callback(GLenum source, GLenum type, GLuint id,
1575         GLenum severity, GLsizei length, const char *message, void *ctx)
1576 {
1577     switch (type)
1578     {
1579         case GL_DEBUG_TYPE_ERROR_ARB:
1580             ERR("%p: %s.\n", ctx, debugstr_an(message, length));
1581             break;
1582
1583         case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB:
1584         case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB:
1585         case GL_DEBUG_TYPE_PORTABILITY_ARB:
1586             FIXME("%p: %s.\n", ctx, debugstr_an(message, length));
1587             break;
1588
1589         case GL_DEBUG_TYPE_PERFORMANCE_ARB:
1590             WARN_(d3d_perf)("%p: %s.\n", ctx, debugstr_an(message, length));
1591             break;
1592
1593         default:
1594             FIXME("ctx %p, type %#x: %s.\n", ctx, type, debugstr_an(message, length));
1595             break;
1596     }
1597 }
1598
1599 HGLRC context_create_wgl_attribs(const struct wined3d_gl_info *gl_info, HDC hdc, HGLRC share_ctx)
1600 {
1601     HGLRC ctx;
1602     unsigned int ctx_attrib_idx = 0;
1603     GLint ctx_attribs[7], ctx_flags = 0;
1604
1605     if (context_debug_output_enabled(gl_info))
1606         ctx_flags = WGL_CONTEXT_DEBUG_BIT_ARB;
1607     ctx_attribs[ctx_attrib_idx++] = WGL_CONTEXT_MAJOR_VERSION_ARB;
1608     ctx_attribs[ctx_attrib_idx++] = gl_info->selected_gl_version >> 16;
1609     ctx_attribs[ctx_attrib_idx++] = WGL_CONTEXT_MINOR_VERSION_ARB;
1610     ctx_attribs[ctx_attrib_idx++] = gl_info->selected_gl_version & 0xffff;
1611     if (gl_info->selected_gl_version >= MAKEDWORD_VERSION(3, 2))
1612         ctx_flags |= WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;
1613     if (ctx_flags)
1614     {
1615         ctx_attribs[ctx_attrib_idx++] = WGL_CONTEXT_FLAGS_ARB;
1616         ctx_attribs[ctx_attrib_idx++] = ctx_flags;
1617     }
1618     ctx_attribs[ctx_attrib_idx] = 0;
1619
1620     if (!(ctx = gl_info->p_wglCreateContextAttribsARB(hdc, share_ctx, ctx_attribs)))
1621     {
1622         if (ctx_flags & WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB)
1623         {
1624             ctx_attribs[ctx_attrib_idx - 1] &= ~WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;
1625             if (!(ctx = gl_info->p_wglCreateContextAttribsARB(hdc, share_ctx, ctx_attribs)))
1626                 WARN("Failed to create a WGL context with wglCreateContextAttribsARB, last error %#x.\n",
1627                         GetLastError());
1628         }
1629     }
1630     return ctx;
1631 }
1632
1633 struct wined3d_context *context_create(struct wined3d_swapchain *swapchain,
1634         struct wined3d_texture *target, const struct wined3d_format *ds_format)
1635 {
1636     struct wined3d_device *device = swapchain->device;
1637     const struct wined3d_gl_info *gl_info = &device->adapter->gl_info;
1638     const struct wined3d_format *color_format;
1639     struct wined3d_context *ret;
1640     BOOL auxBuffers = FALSE;
1641     HGLRC ctx, share_ctx;
1642     int pixel_format;
1643     unsigned int s;
1644     DWORD state;
1645     HDC hdc = 0;
1646     BOOL hdc_is_private = FALSE;
1647
1648     TRACE("swapchain %p, target %p, window %p.\n", swapchain, target, swapchain->win_handle);
1649
1650     ret = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*ret));
1651     if (!ret)
1652         return NULL;
1653
1654     if (!(ret->blit_targets = wined3d_calloc(gl_info->limits.buffers, sizeof(*ret->blit_targets))))
1655         goto out;
1656
1657     if (!(ret->draw_buffers = wined3d_calloc(gl_info->limits.buffers, sizeof(*ret->draw_buffers))))
1658         goto out;
1659
1660     ret->fbo_key = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
1661             FIELD_OFFSET(struct wined3d_fbo_entry_key, objects[gl_info->limits.buffers + 1]));
1662     if (!ret->fbo_key)
1663         goto out;
1664
1665     ret->free_timestamp_query_size = 4;
1666     if (!(ret->free_timestamp_queries = wined3d_calloc(ret->free_timestamp_query_size,
1667             sizeof(*ret->free_timestamp_queries))))
1668         goto out;
1669     list_init(&ret->timestamp_queries);
1670
1671     ret->free_occlusion_query_size = 4;
1672     if (!(ret->free_occlusion_queries = wined3d_calloc(ret->free_occlusion_query_size,
1673             sizeof(*ret->free_occlusion_queries))))
1674         goto out;
1675
1676     list_init(&ret->occlusion_queries);
1677
1678     ret->free_event_query_size = 4;
1679     if (!(ret->free_event_queries = wined3d_calloc(ret->free_event_query_size,
1680             sizeof(*ret->free_event_queries))))
1681         goto out;
1682
1683     list_init(&ret->event_queries);
1684     list_init(&ret->fbo_list);
1685     list_init(&ret->fbo_destroy_list);
1686
1687     if (!device->shader_backend->shader_allocate_context_data(ret))
1688     {
1689         ERR("Failed to allocate shader backend context data.\n");
1690         goto out;
1691     }
1692     if (!device->adapter->fragment_pipe->allocate_context_data(ret))
1693     {
1694         ERR("Failed to allocate fragment pipeline context data.\n");
1695         goto out;
1696     }
1697
1698     /* Initialize the texture unit mapping to a 1:1 mapping */
1699     for (s = 0; s < MAX_COMBINED_SAMPLERS; ++s)
1700     {
1701         if (s < gl_info->limits.combined_samplers)
1702         {
1703             ret->tex_unit_map[s] = s;
1704             ret->rev_tex_unit_map[s] = s;
1705         }
1706         else
1707         {
1708             ret->tex_unit_map[s] = WINED3D_UNMAPPED_STAGE;
1709             ret->rev_tex_unit_map[s] = WINED3D_UNMAPPED_STAGE;
1710         }
1711     }
1712
1713     if (!(hdc = GetDCEx(swapchain->win_handle, 0, DCX_USESTYLE | DCX_CACHE)))
1714     {
1715         WARN("Failed to retrieve device context, trying swapchain backup.\n");
1716
1717         if ((hdc = swapchain_get_backup_dc(swapchain)))
1718             hdc_is_private = TRUE;
1719         else
1720         {
1721             ERR("Failed to retrieve a device context.\n");
1722             goto out;
1723         }
1724     }
1725
1726     color_format = target->resource.format;
1727
1728     /* In case of ORM_BACKBUFFER, make sure to request an alpha component for
1729      * X4R4G4B4/X8R8G8B8 as we might need it for the backbuffer. */
1730     if (wined3d_settings.offscreen_rendering_mode == ORM_BACKBUFFER)
1731     {
1732         auxBuffers = TRUE;
1733
1734         if (color_format->id == WINED3DFMT_B4G4R4X4_UNORM)
1735             color_format = wined3d_get_format(gl_info, WINED3DFMT_B4G4R4A4_UNORM);
1736         else if (color_format->id == WINED3DFMT_B8G8R8X8_UNORM)
1737             color_format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM);
1738     }
1739
1740     /* DirectDraw supports 8bit paletted render targets and these are used by
1741      * old games like StarCraft and C&C. Most modern hardware doesn't support
1742      * 8bit natively so we perform some form of 8bit -> 32bit conversion. The
1743      * conversion (ab)uses the alpha component for storing the palette index.
1744      * For this reason we require a format with 8bit alpha, so request
1745      * A8R8G8B8. */
1746     if (color_format->id == WINED3DFMT_P8_UINT)
1747         color_format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM);
1748
1749     /* When "always_offscreen" is enabled, we only use the drawable for
1750      * presentation blits, and don't do any rendering to it. That means we
1751      * don't need depth or stencil buffers, and can mostly ignore the render
1752      * target format. This wouldn't necessarily be quite correct for 10bpc
1753      * display modes, but we don't currently support those.
1754      * Using the same format regardless of the color/depth/stencil targets
1755      * makes it much less likely that different wined3d instances will set
1756      * conflicting pixel formats. */
1757     if (wined3d_settings.offscreen_rendering_mode != ORM_BACKBUFFER
1758             && wined3d_settings.always_offscreen)
1759     {
1760         color_format = wined3d_get_format(gl_info, WINED3DFMT_B8G8R8A8_UNORM);
1761         ds_format = wined3d_get_format(gl_info, WINED3DFMT_UNKNOWN);
1762     }
1763
1764     /* Try to find a pixel format which matches our requirements. */
1765     pixel_format = context_choose_pixel_format(device, hdc, color_format, ds_format, auxBuffers, FALSE);
1766
1767     /* Try to locate a compatible format if we weren't able to find anything. */
1768     if (!pixel_format)
1769     {
1770         TRACE("Trying to locate a compatible pixel format because an exact match failed.\n");
1771         pixel_format = context_choose_pixel_format(device, hdc, color_format, ds_format, auxBuffers, TRUE);
1772     }
1773
1774     /* If we still don't have a pixel format, something is very wrong as ChoosePixelFormat barely fails */
1775     if (!pixel_format)
1776     {
1777         ERR("Can't find a suitable pixel format.\n");
1778         goto out;
1779     }
1780
1781     ret->gl_info = gl_info;
1782
1783     context_enter(ret);
1784
1785     if (!context_set_pixel_format(ret, hdc, hdc_is_private, pixel_format))
1786     {
1787         ERR("Failed to set pixel format %d on device context %p.\n", pixel_format, hdc);
1788         context_release(ret);
1789         goto out;
1790     }
1791
1792     share_ctx = device->context_count ? device->contexts[0]->glCtx : NULL;
1793     if (gl_info->p_wglCreateContextAttribsARB)
1794     {
1795         if (!(ctx = context_create_wgl_attribs(gl_info, hdc, share_ctx)))
1796             goto out;
1797     }
1798     else
1799     {
1800         if (!(ctx = wglCreateContext(hdc)))
1801         {
1802             ERR("Failed to create a WGL context.\n");
1803             context_release(ret);
1804             goto out;
1805         }
1806
1807         if (share_ctx && !wglShareLists(share_ctx, ctx))
1808         {
1809             ERR("wglShareLists(%p, %p) failed, last error %#x.\n", share_ctx, ctx, GetLastError());
1810             context_release(ret);
1811             if (!wglDeleteContext(ctx))
1812                 ERR("wglDeleteContext(%p) failed, last error %#x.\n", ctx, GetLastError());
1813             goto out;
1814         }
1815     }
1816
1817     if (!device_context_add(device, ret))
1818     {
1819         ERR("Failed to add the newly created context to the context list\n");
1820         context_release(ret);
1821         if (!wglDeleteContext(ctx))
1822             ERR("wglDeleteContext(%p) failed, last error %#x.\n", ctx, GetLastError());
1823         goto out;
1824     }
1825
1826     ret->d3d_info = &device->adapter->d3d_info;
1827     ret->state_table = device->StateTable;
1828
1829     /* Mark all states dirty to force a proper initialization of the states
1830      * on the first use of the context. */
1831     for (state = 0; state <= STATE_HIGHEST; ++state)
1832     {
1833         if (ret->state_table[state].representative)
1834             context_invalidate_state(ret, state);
1835     }
1836
1837     ret->device = device;
1838     ret->swapchain = swapchain;
1839     ret->current_rt.texture = target;
1840     ret->current_rt.sub_resource_idx = 0;
1841     ret->tid = GetCurrentThreadId();
1842
1843     ret->render_offscreen = wined3d_resource_is_offscreen(&target->resource);
1844     ret->draw_buffers_mask = context_generate_rt_mask(GL_BACK);
1845     ret->valid = 1;
1846
1847     ret->glCtx = ctx;
1848     ret->win_handle = swapchain->win_handle;
1849     ret->hdc = hdc;
1850     ret->hdc_is_private = hdc_is_private;
1851     ret->hdc_has_format = TRUE;
1852     ret->pixel_format = pixel_format;
1853     ret->needs_set = 1;
1854
1855     /* Set up the context defaults */
1856     if (!context_set_current(ret))
1857     {
1858         ERR("Cannot activate context to set up defaults.\n");
1859         device_context_remove(device, ret);
1860         context_release(ret);
1861         if (!wglDeleteContext(ctx))
1862             ERR("wglDeleteContext(%p) failed, last error %#x.\n", ctx, GetLastError());
1863         goto out;
1864     }
1865
1866     if (context_debug_output_enabled(gl_info))
1867     {
1868         GL_EXTCALL(glDebugMessageCallback(wined3d_debug_callback, ret));
1869         if (TRACE_ON(d3d_synchronous))
1870             gl_info->gl_ops.gl.p_glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
1871         GL_EXTCALL(glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, NULL, GL_FALSE));
1872         if (ERR_ON(d3d))
1873         {
1874             GL_EXTCALL(glDebugMessageControl(GL_DONT_CARE, GL_DEBUG_TYPE_ERROR,
1875                     GL_DONT_CARE, 0, NULL, GL_TRUE));
1876         }
1877         if (FIXME_ON(d3d))
1878         {
1879             GL_EXTCALL(glDebugMessageControl(GL_DONT_CARE, GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR,
1880                     GL_DONT_CARE, 0, NULL, GL_TRUE));
1881             GL_EXTCALL(glDebugMessageControl(GL_DONT_CARE, GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR,
1882                     GL_DONT_CARE, 0, NULL, GL_TRUE));
1883             GL_EXTCALL(glDebugMessageControl(GL_DONT_CARE, GL_DEBUG_TYPE_PORTABILITY,
1884                     GL_DONT_CARE, 0, NULL, GL_TRUE));
1885         }
1886         if (WARN_ON(d3d_perf))
1887         {
1888             GL_EXTCALL(glDebugMessageControl(GL_DONT_CARE, GL_DEBUG_TYPE_PERFORMANCE,
1889                     GL_DONT_CARE, 0, NULL, GL_TRUE));
1890         }
1891     }
1892
1893     gl_info->gl_ops.gl.p_glGetIntegerv(GL_AUX_BUFFERS, &ret->aux_buffers);
1894
1895     TRACE("Setting up the screen\n");
1896
1897     if (gl_info->supported[WINED3D_GL_LEGACY_CONTEXT])
1898     {
1899         gl_info->gl_ops.gl.p_glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
1900         checkGLcall("glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);");
1901
1902         gl_info->gl_ops.gl.p_glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);
1903         checkGLcall("glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_EXT);");
1904
1905         gl_info->gl_ops.gl.p_glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
1906         checkGLcall("glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);");
1907     }
1908     else
1909     {
1910         GLuint vao;
1911
1912         GL_EXTCALL(glGenVertexArrays(1, &vao));
1913         GL_EXTCALL(glBindVertexArray(vao));
1914         checkGLcall("creating VAO");
1915     }
1916
1917     gl_info->gl_ops.gl.p_glPixelStorei(GL_PACK_ALIGNMENT, device->surface_alignment);
1918     checkGLcall("glPixelStorei(GL_PACK_ALIGNMENT, device->surface_alignment);");
1919     gl_info->gl_ops.gl.p_glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
1920     checkGLcall("glPixelStorei(GL_UNPACK_ALIGNMENT, 1);");
1921
1922     if (gl_info->supported[ARB_VERTEX_BLEND])
1923     {
1924         /* Direct3D always uses n-1 weights for n world matrices and uses
1925          * 1 - sum for the last one this is equal to GL_WEIGHT_SUM_UNITY_ARB.
1926          * Enabling it doesn't do anything unless GL_VERTEX_BLEND_ARB isn't
1927          * enabled as well. */
1928         gl_info->gl_ops.gl.p_glEnable(GL_WEIGHT_SUM_UNITY_ARB);
1929         checkGLcall("glEnable(GL_WEIGHT_SUM_UNITY_ARB)");
1930     }
1931     if (gl_info->supported[NV_TEXTURE_SHADER2])
1932     {
1933         /* Set up the previous texture input for all shader units. This applies to bump mapping, and in d3d
1934          * the previous texture where to source the offset from is always unit - 1.
1935          */
1936         for (s = 1; s < gl_info->limits.textures; ++s)
1937         {
1938             context_active_texture(ret, gl_info, s);
1939             gl_info->gl_ops.gl.p_glTexEnvi(GL_TEXTURE_SHADER_NV,
1940                     GL_PREVIOUS_TEXTURE_INPUT_NV, GL_TEXTURE0_ARB + s - 1);
1941             checkGLcall("glTexEnvi(GL_TEXTURE_SHADER_NV, GL_PREVIOUS_TEXTURE_INPUT_NV, ...");
1942         }
1943     }
1944     if (gl_info->supported[ARB_FRAGMENT_PROGRAM])
1945     {
1946         /* MacOS(radeon X1600 at least, but most likely others too) refuses to draw if GLSL and ARBFP are
1947          * enabled, but the currently bound arbfp program is 0. Enabling ARBFP with prog 0 is invalid, but
1948          * GLSL should bypass this. This causes problems in programs that never use the fixed function pipeline,
1949          * because the ARBFP extension is enabled by the ARBFP pipeline at context creation, but no program
1950          * is ever assigned.
1951          *
1952          * So make sure a program is assigned to each context. The first real ARBFP use will set a different
1953          * program and the dummy program is destroyed when the context is destroyed.
1954          */
1955         static const char dummy_program[] =
1956                 "!!ARBfp1.0\n"
1957                 "MOV result.color, fragment.color.primary;\n"
1958                 "END\n";
1959         GL_EXTCALL(glGenProgramsARB(1, &ret->dummy_arbfp_prog));
1960         GL_EXTCALL(glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, ret->dummy_arbfp_prog));
1961         GL_EXTCALL(glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, strlen(dummy_program), dummy_program));
1962     }
1963
1964     if (gl_info->supported[ARB_POINT_SPRITE])
1965     {
1966         for (s = 0; s < gl_info->limits.textures; ++s)
1967         {
1968             context_active_texture(ret, gl_info, s);
1969             gl_info->gl_ops.gl.p_glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE);
1970             checkGLcall("glTexEnvi(GL_POINT_SPRITE_ARB, GL_COORD_REPLACE_ARB, GL_TRUE)");
1971         }
1972     }
1973
1974     if (gl_info->supported[ARB_PROVOKING_VERTEX])
1975     {
1976         GL_EXTCALL(glProvokingVertex(GL_FIRST_VERTEX_CONVENTION));
1977     }
1978     else if (gl_info->supported[EXT_PROVOKING_VERTEX])
1979     {
1980         GL_EXTCALL(glProvokingVertexEXT(GL_FIRST_VERTEX_CONVENTION_EXT));
1981     }
1982     if (gl_info->supported[ARB_CLIP_CONTROL])
1983         GL_EXTCALL(glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, GL_LOWER_LEFT));
1984     device->shader_backend->shader_init_context_state(ret);
1985     ret->shader_update_mask = (1u << WINED3D_SHADER_TYPE_PIXEL)
1986             | (1u << WINED3D_SHADER_TYPE_VERTEX)
1987             | (1u << WINED3D_SHADER_TYPE_GEOMETRY)
1988             | (1u << WINED3D_SHADER_TYPE_HULL)
1989             | (1u << WINED3D_SHADER_TYPE_DOMAIN)
1990             | (1u << WINED3D_SHADER_TYPE_COMPUTE);
1991
1992     /* If this happens to be the first context for the device, dummy textures
1993      * are not created yet. In that case, they will be created (and bound) by
1994      * create_dummy_textures right after this context is initialized. */
1995     if (device->dummy_textures.tex_2d)
1996         context_bind_dummy_textures(device, ret);
1997
1998     TRACE("Created context %p.\n", ret);
1999
2000     return ret;
2001
2002 out:
2003     if (hdc) wined3d_release_dc(swapchain->win_handle, hdc);
2004     device->shader_backend->shader_free_context_data(ret);
2005     device->adapter->fragment_pipe->free_context_data(ret);
2006     HeapFree(GetProcessHeap(), 0, ret->free_event_queries);
2007     HeapFree(GetProcessHeap(), 0, ret->free_occlusion_queries);
2008     HeapFree(GetProcessHeap(), 0, ret->free_timestamp_queries);
2009     HeapFree(GetProcessHeap(), 0, ret->fbo_key);
2010     HeapFree(GetProcessHeap(), 0, ret->draw_buffers);
2011     HeapFree(GetProcessHeap(), 0, ret->blit_targets);
2012     HeapFree(GetProcessHeap(), 0, ret);
2013     return NULL;
2014 }
2015
2016 void context_destroy(struct wined3d_device *device, struct wined3d_context *context)
2017 {
2018     BOOL destroy;
2019
2020     TRACE("Destroying ctx %p\n", context);
2021
2022     /* We delay destroying a context when it is active. The context_release()
2023      * function invokes context_destroy() again while leaving the last level. */
2024     if (context->level)
2025     {
2026         TRACE("Delaying destruction of context %p.\n", context);
2027         context->destroy_delayed = 1;
2028         /* FIXME: Get rid of a pointer to swapchain from wined3d_context. */
2029         context->swapchain = NULL;
2030         return;
2031     }
2032
2033     if (context->tid == GetCurrentThreadId() || !context->current)
2034     {
2035         context_destroy_gl_resources(context);
2036         TlsSetValue(wined3d_context_tls_idx, NULL);
2037         destroy = TRUE;
2038     }
2039     else
2040     {
2041         /* Make a copy of gl_info for context_destroy_gl_resources use, the one
2042            in wined3d_adapter may go away in the meantime */
2043         struct wined3d_gl_info *gl_info = HeapAlloc(GetProcessHeap(), 0, sizeof(*gl_info));
2044         *gl_info = *context->gl_info;
2045         context->gl_info = gl_info;
2046         context->destroyed = 1;
2047         destroy = FALSE;
2048     }
2049
2050     device->shader_backend->shader_free_context_data(context);
2051     device->adapter->fragment_pipe->free_context_data(context);
2052     HeapFree(GetProcessHeap(), 0, context->fbo_key);
2053     HeapFree(GetProcessHeap(), 0, context->draw_buffers);
2054     HeapFree(GetProcessHeap(), 0, context->blit_targets);
2055     device_context_remove(device, context);
2056     if (destroy) HeapFree(GetProcessHeap(), 0, context);
2057 }
2058
2059 /* Context activation is done by the caller. */
2060 static void set_blit_dimension(const struct wined3d_gl_info *gl_info, UINT width, UINT height)
2061 {
2062     const GLdouble projection[] =
2063     {
2064         2.0 / width,          0.0,  0.0, 0.0,
2065                 0.0, 2.0 / height,  0.0, 0.0,
2066                 0.0,          0.0,  2.0, 0.0,
2067                -1.0,         -1.0, -1.0, 1.0,
2068     };
2069
2070     gl_info->gl_ops.gl.p_glMatrixMode(GL_PROJECTION);
2071     checkGLcall("glMatrixMode(GL_PROJECTION)");
2072     gl_info->gl_ops.gl.p_glLoadMatrixd(projection);
2073     checkGLcall("glLoadMatrixd");
2074     gl_info->gl_ops.gl.p_glViewport(0, 0, width, height);
2075     checkGLcall("glViewport");
2076 }
2077
2078 static void context_get_rt_size(const struct wined3d_context *context, SIZE *size)
2079 {
2080     const struct wined3d_texture *rt = context->current_rt.texture;
2081     unsigned int level;
2082
2083     if (rt->swapchain && rt->swapchain->front_buffer == rt)
2084     {
2085         RECT window_size;
2086
2087         GetClientRect(context->win_handle, &window_size);
2088         size->cx = window_size.right - window_size.left;
2089         size->cy = window_size.bottom - window_size.top;
2090
2091         return;
2092     }
2093
2094     level = context->current_rt.sub_resource_idx % rt->level_count;
2095     size->cx = wined3d_texture_get_level_width(rt, level);
2096     size->cy = wined3d_texture_get_level_height(rt, level);
2097 }
2098
2099 /*****************************************************************************
2100  * SetupForBlit
2101  *
2102  * Sets up a context for DirectDraw blitting.
2103  * All texture units are disabled, texture unit 0 is set as current unit
2104  * fog, lighting, blending, alpha test, z test, scissor test, culling disabled
2105  * color writing enabled for all channels
2106  * register combiners disabled, shaders disabled
2107  * world matrix is set to identity, texture matrix 0 too
2108  * projection matrix is setup for drawing screen coordinates
2109  *
2110  * Params:
2111  *  This: Device to activate the context for
2112  *  context: Context to setup
2113  *
2114  *****************************************************************************/
2115 /* Context activation is done by the caller. */
2116 static void SetupForBlit(const struct wined3d_device *device, struct wined3d_context *context)
2117 {
2118     int i;
2119     const struct wined3d_gl_info *gl_info = context->gl_info;
2120     DWORD sampler;
2121     SIZE rt_size;
2122
2123     TRACE("Setting up context %p for blitting\n", context);
2124
2125     context_get_rt_size(context, &rt_size);
2126
2127     if (context->last_was_blit)
2128     {
2129         if (context->blit_w != rt_size.cx || context->blit_h != rt_size.cy)
2130         {
2131             set_blit_dimension(gl_info, rt_size.cx, rt_size.cy);
2132             context->blit_w = rt_size.cx;
2133             context->blit_h = rt_size.cy;
2134             /* No need to dirtify here, the states are still dirtified because
2135              * they weren't applied since the last SetupForBlit() call. */
2136         }
2137         TRACE("Context is already set up for blitting, nothing to do\n");
2138         return;
2139     }
2140     context->last_was_blit = TRUE;
2141
2142     /* Disable all textures. The caller can then bind a texture it wants to blit
2143      * from
2144      *
2145      * The blitting code uses (for now) the fixed function pipeline, so make sure to reset all fixed
2146      * function texture unit. No need to care for higher samplers
2147      */
2148     for (i = gl_info->limits.textures - 1; i > 0 ; --i)
2149     {
2150         sampler = context->rev_tex_unit_map[i];
2151         context_active_texture(context, gl_info, i);
2152
2153         if (gl_info->supported[ARB_TEXTURE_CUBE_MAP])
2154         {
2155             gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_CUBE_MAP_ARB);
2156             checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB");
2157         }
2158         gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_3D);
2159         checkGLcall("glDisable GL_TEXTURE_3D");
2160         if (gl_info->supported[ARB_TEXTURE_RECTANGLE])
2161         {
2162             gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_RECTANGLE_ARB);
2163             checkGLcall("glDisable GL_TEXTURE_RECTANGLE_ARB");
2164         }
2165         gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_2D);
2166         checkGLcall("glDisable GL_TEXTURE_2D");
2167
2168         gl_info->gl_ops.gl.p_glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
2169         checkGLcall("glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);");
2170
2171         if (sampler != WINED3D_UNMAPPED_STAGE)
2172         {
2173             if (sampler < MAX_TEXTURES)
2174                 context_invalidate_state(context, STATE_TEXTURESTAGE(sampler, WINED3D_TSS_COLOR_OP));
2175             context_invalidate_state(context, STATE_SAMPLER(sampler));
2176         }
2177     }
2178     if (gl_info->supported[ARB_SAMPLER_OBJECTS])
2179         GL_EXTCALL(glBindSampler(0, 0));
2180     context_active_texture(context, gl_info, 0);
2181
2182     sampler = context->rev_tex_unit_map[0];
2183
2184     if (gl_info->supported[ARB_TEXTURE_CUBE_MAP])
2185     {
2186         gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_CUBE_MAP_ARB);
2187         checkGLcall("glDisable GL_TEXTURE_CUBE_MAP_ARB");
2188     }
2189     gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_3D);
2190     checkGLcall("glDisable GL_TEXTURE_3D");
2191     if (gl_info->supported[ARB_TEXTURE_RECTANGLE])
2192     {
2193         gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_RECTANGLE_ARB);
2194         checkGLcall("glDisable GL_TEXTURE_RECTANGLE_ARB");
2195     }
2196     gl_info->gl_ops.gl.p_glDisable(GL_TEXTURE_2D);
2197     checkGLcall("glDisable GL_TEXTURE_2D");
2198
2199     gl_info->gl_ops.gl.p_glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
2200
2201     gl_info->gl_ops.gl.p_glMatrixMode(GL_TEXTURE);
2202     checkGLcall("glMatrixMode(GL_TEXTURE)");
2203     gl_info->gl_ops.gl.p_glLoadIdentity();
2204     checkGLcall("glLoadIdentity()");
2205
2206     if (gl_info->supported[EXT_TEXTURE_LOD_BIAS])
2207     {
2208         gl_info->gl_ops.gl.p_glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT,
2209                 GL_TEXTURE_LOD_BIAS_EXT, 0.0f);
2210         checkGLcall("glTexEnvf GL_TEXTURE_LOD_BIAS_EXT ...");
2211     }
2212
2213     if (sampler != WINED3D_UNMAPPED_STAGE)
2214     {
2215         if (sampler < MAX_TEXTURES)
2216         {
2217             context_invalidate_state(context, STATE_TRANSFORM(WINED3D_TS_TEXTURE0 + sampler));
2218             context_invalidate_state(context, STATE_TEXTURESTAGE(sampler, WINED3D_TSS_COLOR_OP));
2219         }
2220         context_invalidate_state(context, STATE_SAMPLER(sampler));
2221     }
2222
2223     /* Other misc states */
2224     gl_info->gl_ops.gl.p_glDisable(GL_ALPHA_TEST);
2225     checkGLcall("glDisable(GL_ALPHA_TEST)");
2226     context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ALPHATESTENABLE));
2227     gl_info->gl_ops.gl.p_glDisable(GL_LIGHTING);
2228     checkGLcall("glDisable GL_LIGHTING");
2229     context_invalidate_state(context, STATE_RENDER(WINED3D_RS_LIGHTING));
2230     gl_info->gl_ops.gl.p_glDisable(GL_DEPTH_TEST);
2231     checkGLcall("glDisable GL_DEPTH_TEST");
2232     context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ZENABLE));
2233     glDisableWINE(GL_FOG);
2234     checkGLcall("glDisable GL_FOG");
2235     context_invalidate_state(context, STATE_RENDER(WINED3D_RS_FOGENABLE));
2236     gl_info->gl_ops.gl.p_glDisable(GL_BLEND);
2237     checkGLcall("glDisable GL_BLEND");
2238     context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ALPHABLENDENABLE));
2239     gl_info->gl_ops.gl.p_glDisable(GL_CULL_FACE);
2240     checkGLcall("glDisable GL_CULL_FACE");
2241     context_invalidate_state(context, STATE_RENDER(WINED3D_RS_CULLMODE));
2242     gl_info->gl_ops.gl.p_glDisable(GL_STENCIL_TEST);
2243     checkGLcall("glDisable GL_STENCIL_TEST");
2244     context_invalidate_state(context, STATE_RENDER(WINED3D_RS_STENCILENABLE));
2245     gl_info->gl_ops.gl.p_glDisable(GL_SCISSOR_TEST);
2246     checkGLcall("glDisable GL_SCISSOR_TEST");
2247     context_invalidate_state(context, STATE_RENDER(WINED3D_RS_SCISSORTESTENABLE));
2248     if (gl_info->supported[ARB_POINT_SPRITE])
2249     {
2250         gl_info->gl_ops.gl.p_glDisable(GL_POINT_SPRITE_ARB);
2251         checkGLcall("glDisable GL_POINT_SPRITE_ARB");
2252         context_invalidate_state(context, STATE_RENDER(WINED3D_RS_POINTSPRITEENABLE));
2253     }
2254     gl_info->gl_ops.gl.p_glColorMask(GL_TRUE, GL_TRUE,GL_TRUE,GL_TRUE);
2255     checkGLcall("glColorMask");
2256     context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE));
2257     context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE1));
2258     context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE2));
2259     context_invalidate_state(context, STATE_RENDER(WINED3D_RS_COLORWRITEENABLE3));
2260     if (gl_info->supported[EXT_SECONDARY_COLOR])
2261     {
2262         gl_info->gl_ops.gl.p_glDisable(GL_COLOR_SUM_EXT);
2263         context_invalidate_state(context, STATE_RENDER(WINED3D_RS_SPECULARENABLE));
2264         checkGLcall("glDisable(GL_COLOR_SUM_EXT)");
2265     }
2266
2267     /* Setup transforms */
2268     gl_info->gl_ops.gl.p_glMatrixMode(GL_MODELVIEW);
2269     checkGLcall("glMatrixMode(GL_MODELVIEW)");
2270     gl_info->gl_ops.gl.p_glLoadIdentity();
2271     checkGLcall("glLoadIdentity()");
2272     context_invalidate_state(context, STATE_TRANSFORM(WINED3D_TS_WORLD_MATRIX(0)));
2273
2274     context->last_was_rhw = TRUE;
2275     context_invalidate_state(context, STATE_VDECL); /* because of last_was_rhw = TRUE */
2276
2277     gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE0); checkGLcall("glDisable(clip plane 0)");
2278     gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE1); checkGLcall("glDisable(clip plane 1)");
2279     gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE2); checkGLcall("glDisable(clip plane 2)");
2280     gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE3); checkGLcall("glDisable(clip plane 3)");
2281     gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE4); checkGLcall("glDisable(clip plane 4)");
2282     gl_info->gl_ops.gl.p_glDisable(GL_CLIP_PLANE5); checkGLcall("glDisable(clip plane 5)");
2283     context_invalidate_state(context, STATE_RENDER(WINED3D_RS_CLIPPING));
2284
2285     /* FIXME: Make draw_textured_quad() able to work with a upper left origin. */
2286     if (gl_info->supported[ARB_CLIP_CONTROL])
2287         GL_EXTCALL(glClipControl(GL_LOWER_LEFT, GL_NEGATIVE_ONE_TO_ONE));
2288
2289     set_blit_dimension(gl_info, rt_size.cx, rt_size.cy);
2290
2291     /* Disable shaders */
2292     device->shader_backend->shader_disable(device->shader_priv, context);
2293
2294     context->blit_w = rt_size.cx;
2295     context->blit_h = rt_size.cy;
2296     context_invalidate_state(context, STATE_VIEWPORT);
2297     context_invalidate_state(context, STATE_TRANSFORM(WINED3D_TS_PROJECTION));
2298 }
2299
2300 static inline BOOL is_rt_mask_onscreen(DWORD rt_mask)
2301 {
2302     return rt_mask & (1u << 31);
2303 }
2304
2305 static inline GLenum draw_buffer_from_rt_mask(DWORD rt_mask)
2306 {
2307     return rt_mask & ~(1u << 31);
2308 }
2309
2310 /* Context activation is done by the caller. */
2311 static void context_apply_draw_buffers(struct wined3d_context *context, DWORD rt_mask)
2312 {
2313     const struct wined3d_gl_info *gl_info = context->gl_info;
2314
2315     if (!rt_mask)
2316     {
2317         gl_info->gl_ops.gl.p_glDrawBuffer(GL_NONE);
2318         checkGLcall("glDrawBuffer()");
2319     }
2320     else if (is_rt_mask_onscreen(rt_mask))
2321     {
2322         gl_info->gl_ops.gl.p_glDrawBuffer(draw_buffer_from_rt_mask(rt_mask));
2323         checkGLcall("glDrawBuffer()");
2324     }
2325     else
2326     {
2327         if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2328         {
2329             unsigned int i = 0;
2330
2331             while (rt_mask)
2332             {
2333                 if (rt_mask & 1)
2334                     context->draw_buffers[i] = GL_COLOR_ATTACHMENT0 + i;
2335                 else
2336                     context->draw_buffers[i] = GL_NONE;
2337
2338                 rt_mask >>= 1;
2339                 ++i;
2340             }
2341
2342             if (gl_info->supported[ARB_DRAW_BUFFERS])
2343             {
2344                 GL_EXTCALL(glDrawBuffers(i, context->draw_buffers));
2345                 checkGLcall("glDrawBuffers()");
2346             }
2347             else
2348             {
2349                 gl_info->gl_ops.gl.p_glDrawBuffer(context->draw_buffers[0]);
2350                 checkGLcall("glDrawBuffer()");
2351             }
2352         }
2353         else
2354         {
2355             ERR("Unexpected draw buffers mask with backbuffer ORM.\n");
2356         }
2357     }
2358 }
2359
2360 /* Context activation is done by the caller. */
2361 void context_set_draw_buffer(struct wined3d_context *context, GLenum buffer)
2362 {
2363     const struct wined3d_gl_info *gl_info = context->gl_info;
2364     DWORD *current_mask = context->current_fbo ? &context->current_fbo->rt_mask : &context->draw_buffers_mask;
2365     DWORD new_mask = context_generate_rt_mask(buffer);
2366
2367     if (new_mask == *current_mask)
2368         return;
2369
2370     gl_info->gl_ops.gl.p_glDrawBuffer(buffer);
2371     checkGLcall("glDrawBuffer()");
2372
2373     *current_mask = new_mask;
2374 }
2375
2376 /* Context activation is done by the caller. */
2377 void context_active_texture(struct wined3d_context *context, const struct wined3d_gl_info *gl_info, unsigned int unit)
2378 {
2379     GL_EXTCALL(glActiveTexture(GL_TEXTURE0 + unit));
2380     checkGLcall("glActiveTexture");
2381     context->active_texture = unit;
2382 }
2383
2384 void context_bind_texture(struct wined3d_context *context, GLenum target, GLuint name)
2385 {
2386     const struct wined3d_gl_info *gl_info = context->gl_info;
2387     DWORD unit = context->active_texture;
2388     DWORD old_texture_type = context->texture_type[unit];
2389
2390     if (name)
2391     {
2392         gl_info->gl_ops.gl.p_glBindTexture(target, name);
2393         checkGLcall("glBindTexture");
2394     }
2395     else
2396     {
2397         target = GL_NONE;
2398     }
2399
2400     if (old_texture_type != target)
2401     {
2402         const struct wined3d_device *device = context->device;
2403
2404         switch (old_texture_type)
2405         {
2406             case GL_NONE:
2407                 /* nothing to do */
2408                 break;
2409             case GL_TEXTURE_2D:
2410                 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_2D, device->dummy_textures.tex_2d);
2411                 checkGLcall("glBindTexture");
2412                 break;
2413             case GL_TEXTURE_2D_ARRAY:
2414                 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_2D_ARRAY, device->dummy_textures.tex_2d_array);
2415                 checkGLcall("glBindTexture");
2416                 break;
2417             case GL_TEXTURE_RECTANGLE_ARB:
2418                 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_RECTANGLE_ARB, device->dummy_textures.tex_rect);
2419                 checkGLcall("glBindTexture");
2420                 break;
2421             case GL_TEXTURE_CUBE_MAP:
2422                 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_CUBE_MAP, device->dummy_textures.tex_cube);
2423                 checkGLcall("glBindTexture");
2424                 break;
2425             case GL_TEXTURE_3D:
2426                 gl_info->gl_ops.gl.p_glBindTexture(GL_TEXTURE_3D, device->dummy_textures.tex_3d);
2427                 checkGLcall("glBindTexture");
2428                 break;
2429             default:
2430                 ERR("Unexpected texture target %#x.\n", old_texture_type);
2431         }
2432
2433         context->texture_type[unit] = target;
2434     }
2435 }
2436
2437 static void context_set_render_offscreen(struct wined3d_context *context, BOOL offscreen)
2438 {
2439     if (context->render_offscreen == offscreen) return;
2440
2441     context_invalidate_state(context, STATE_VIEWPORT);
2442     context_invalidate_state(context, STATE_SCISSORRECT);
2443     if (!context->gl_info->supported[ARB_CLIP_CONTROL])
2444     {
2445         context_invalidate_state(context, STATE_FRONTFACE);
2446         context_invalidate_state(context, STATE_POINTSPRITECOORDORIGIN);
2447         context_invalidate_state(context, STATE_TRANSFORM(WINED3D_TS_PROJECTION));
2448     }
2449     if (context->gl_info->supported[ARB_FRAGMENT_COORD_CONVENTIONS])
2450         context_invalidate_state(context, STATE_SHADER(WINED3D_SHADER_TYPE_PIXEL));
2451     context->render_offscreen = offscreen;
2452 }
2453
2454 static BOOL match_depth_stencil_format(const struct wined3d_format *existing,
2455         const struct wined3d_format *required)
2456 {
2457     if (existing == required)
2458         return TRUE;
2459     if ((existing->flags[WINED3D_GL_RES_TYPE_TEX_2D] & WINED3DFMT_FLAG_FLOAT)
2460             != (required->flags[WINED3D_GL_RES_TYPE_TEX_2D] & WINED3DFMT_FLAG_FLOAT))
2461         return FALSE;
2462     if (existing->depth_size < required->depth_size)
2463         return FALSE;
2464     /* If stencil bits are used the exact amount is required - otherwise
2465      * wrapping won't work correctly. */
2466     if (required->stencil_size && required->stencil_size != existing->stencil_size)
2467         return FALSE;
2468     return TRUE;
2469 }
2470
2471 /* Context activation is done by the caller. */
2472 static void context_validate_onscreen_formats(struct wined3d_context *context,
2473         const struct wined3d_rendertarget_view *depth_stencil)
2474 {
2475     /* Onscreen surfaces are always in a swapchain */
2476     struct wined3d_swapchain *swapchain = context->current_rt.texture->swapchain;
2477
2478     if (context->render_offscreen || !depth_stencil) return;
2479     if (match_depth_stencil_format(swapchain->ds_format, depth_stencil->format)) return;
2480
2481     /* TODO: If the requested format would satisfy the needs of the existing one(reverse match),
2482      * or no onscreen depth buffer was created, the OpenGL drawable could be changed to the new
2483      * format. */
2484     WARN("Depth stencil format is not supported by WGL, rendering the backbuffer in an FBO\n");
2485
2486     /* The currently active context is the necessary context to access the swapchain's onscreen buffers */
2487     if (!(wined3d_texture_load_location(context->current_rt.texture, context->current_rt.sub_resource_idx,
2488             context, WINED3D_LOCATION_TEXTURE_RGB)))
2489         ERR("Failed to load location.\n");
2490     swapchain->render_to_fbo = TRUE;
2491     swapchain_update_draw_bindings(swapchain);
2492     context_set_render_offscreen(context, TRUE);
2493 }
2494
2495 GLenum context_get_offscreen_gl_buffer(const struct wined3d_context *context)
2496 {
2497     switch (wined3d_settings.offscreen_rendering_mode)
2498     {
2499         case ORM_FBO:
2500             return GL_COLOR_ATTACHMENT0;
2501
2502         case ORM_BACKBUFFER:
2503             return context->aux_buffers > 0 ? GL_AUX0 : GL_BACK;
2504
2505         default:
2506             FIXME("Unhandled offscreen rendering mode %#x.\n", wined3d_settings.offscreen_rendering_mode);
2507             return GL_BACK;
2508     }
2509 }
2510
2511 static DWORD context_generate_rt_mask_no_fbo(const struct wined3d_context *context, struct wined3d_texture *rt)
2512 {
2513     if (!rt || rt->resource.format->id == WINED3DFMT_NULL)
2514         return 0;
2515     else if (rt->swapchain)
2516         return context_generate_rt_mask_from_resource(&rt->resource);
2517     else
2518         return context_generate_rt_mask(context_get_offscreen_gl_buffer(context));
2519 }
2520
2521 /* Context activation is done by the caller. */
2522 void context_apply_blit_state(struct wined3d_context *context, const struct wined3d_device *device)
2523 {
2524     struct wined3d_texture *rt = context->current_rt.texture;
2525     struct wined3d_surface *surface;
2526     DWORD rt_mask, *cur_mask;
2527
2528     if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2529     {
2530         context_validate_onscreen_formats(context, NULL);
2531
2532         if (context->render_offscreen)
2533         {
2534             wined3d_texture_load(rt, context, FALSE);
2535
2536             surface = rt->sub_resources[context->current_rt.sub_resource_idx].u.surface;
2537             context_apply_fbo_state_blit(context, GL_FRAMEBUFFER, surface, NULL, rt->resource.draw_binding);
2538             if (rt->resource.format->id != WINED3DFMT_NULL)
2539                 rt_mask = 1;
2540             else
2541                 rt_mask = 0;
2542         }
2543         else
2544         {
2545             context->current_fbo = NULL;
2546             context_bind_fbo(context, GL_FRAMEBUFFER, 0);
2547             rt_mask = context_generate_rt_mask_from_resource(&rt->resource);
2548         }
2549     }
2550     else
2551     {
2552         rt_mask = context_generate_rt_mask_no_fbo(context, rt);
2553     }
2554
2555     cur_mask = context->current_fbo ? &context->current_fbo->rt_mask : &context->draw_buffers_mask;
2556
2557     if (rt_mask != *cur_mask)
2558     {
2559         context_apply_draw_buffers(context, rt_mask);
2560         *cur_mask = rt_mask;
2561     }
2562
2563     if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2564     {
2565         context_check_fbo_status(context, GL_FRAMEBUFFER);
2566     }
2567
2568     SetupForBlit(device, context);
2569     context_invalidate_state(context, STATE_FRAMEBUFFER);
2570 }
2571
2572 static BOOL context_validate_rt_config(UINT rt_count, struct wined3d_rendertarget_view * const *rts,
2573         const struct wined3d_rendertarget_view *ds)
2574 {
2575     unsigned int i;
2576
2577     if (ds) return TRUE;
2578
2579     for (i = 0; i < rt_count; ++i)
2580     {
2581         if (rts[i] && rts[i]->format->id != WINED3DFMT_NULL)
2582             return TRUE;
2583     }
2584
2585     WARN("Invalid render target config, need at least one attachment.\n");
2586     return FALSE;
2587 }
2588
2589 /* Context activation is done by the caller. */
2590 BOOL context_apply_clear_state(struct wined3d_context *context, const struct wined3d_state *state,
2591         UINT rt_count, const struct wined3d_fb_state *fb)
2592 {
2593     struct wined3d_rendertarget_view **rts = fb->render_targets;
2594     struct wined3d_rendertarget_view *dsv = fb->depth_stencil;
2595     const struct wined3d_gl_info *gl_info = context->gl_info;
2596     DWORD rt_mask = 0, *cur_mask;
2597     UINT i;
2598
2599     if (isStateDirty(context, STATE_FRAMEBUFFER) || fb != state->fb
2600             || rt_count != gl_info->limits.buffers)
2601     {
2602         if (!context_validate_rt_config(rt_count, rts, dsv))
2603             return FALSE;
2604
2605         if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2606         {
2607             context_validate_onscreen_formats(context, dsv);
2608
2609             if (!rt_count || wined3d_resource_is_offscreen(rts[0]->resource))
2610             {
2611                 for (i = 0; i < rt_count; ++i)
2612                 {
2613                     context->blit_targets[i] = wined3d_rendertarget_view_get_surface(rts[i]);
2614                     if (rts[i] && rts[i]->format->id != WINED3DFMT_NULL)
2615                         rt_mask |= (1u << i);
2616                 }
2617                 while (i < gl_info->limits.buffers)
2618                 {
2619                     context->blit_targets[i] = NULL;
2620                     ++i;
2621                 }
2622                 context_apply_fbo_state(context, GL_FRAMEBUFFER, context->blit_targets,
2623                         wined3d_rendertarget_view_get_surface(dsv),
2624                         rt_count ? rts[0]->resource->draw_binding : 0,
2625                         dsv ? dsv->resource->draw_binding : 0);
2626             }
2627             else
2628             {
2629                 context_apply_fbo_state(context, GL_FRAMEBUFFER, NULL, NULL,
2630                         WINED3D_LOCATION_DRAWABLE, WINED3D_LOCATION_DRAWABLE);
2631                 rt_mask = context_generate_rt_mask_from_resource(rts[0]->resource);
2632             }
2633
2634             /* If the framebuffer is not the device's fb the device's fb has to be reapplied
2635              * next draw. Otherwise we could mark the framebuffer state clean here, once the
2636              * state management allows this */
2637             context_invalidate_state(context, STATE_FRAMEBUFFER);
2638         }
2639         else
2640         {
2641             rt_mask = context_generate_rt_mask_no_fbo(context,
2642                     rt_count ? wined3d_rendertarget_view_get_surface(rts[0])->container : NULL);
2643         }
2644     }
2645     else if (wined3d_settings.offscreen_rendering_mode == ORM_FBO
2646             && (!rt_count || wined3d_resource_is_offscreen(rts[0]->resource)))
2647     {
2648         for (i = 0; i < rt_count; ++i)
2649         {
2650             if (rts[i] && rts[i]->format->id != WINED3DFMT_NULL)
2651                 rt_mask |= (1u << i);
2652         }
2653     }
2654     else
2655     {
2656         rt_mask = context_generate_rt_mask_no_fbo(context,
2657                 rt_count ? wined3d_rendertarget_view_get_surface(rts[0])->container : NULL);
2658     }
2659
2660     cur_mask = context->current_fbo ? &context->current_fbo->rt_mask : &context->draw_buffers_mask;
2661
2662     if (rt_mask != *cur_mask)
2663     {
2664         context_apply_draw_buffers(context, rt_mask);
2665         *cur_mask = rt_mask;
2666         context_invalidate_state(context, STATE_FRAMEBUFFER);
2667     }
2668
2669     if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2670     {
2671         context_check_fbo_status(context, GL_FRAMEBUFFER);
2672     }
2673
2674     if (context->last_was_blit)
2675         context->last_was_blit = FALSE;
2676
2677     /* Blending and clearing should be orthogonal, but tests on the nvidia
2678      * driver show that disabling blending when clearing improves the clearing
2679      * performance incredibly. */
2680     gl_info->gl_ops.gl.p_glDisable(GL_BLEND);
2681     gl_info->gl_ops.gl.p_glEnable(GL_SCISSOR_TEST);
2682     if (rt_count && gl_info->supported[ARB_FRAMEBUFFER_SRGB])
2683     {
2684         if (needs_srgb_write(context, state, fb))
2685             gl_info->gl_ops.gl.p_glEnable(GL_FRAMEBUFFER_SRGB);
2686         else
2687             gl_info->gl_ops.gl.p_glDisable(GL_FRAMEBUFFER_SRGB);
2688         context_invalidate_state(context, STATE_RENDER(WINED3D_RS_SRGBWRITEENABLE));
2689     }
2690     checkGLcall("setting up state for clear");
2691
2692     context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ALPHABLENDENABLE));
2693     context_invalidate_state(context, STATE_RENDER(WINED3D_RS_SCISSORTESTENABLE));
2694     context_invalidate_state(context, STATE_SCISSORRECT);
2695
2696     return TRUE;
2697 }
2698
2699 static DWORD find_draw_buffers_mask(const struct wined3d_context *context, const struct wined3d_state *state)
2700 {
2701     struct wined3d_rendertarget_view **rts = state->fb->render_targets;
2702     struct wined3d_shader *ps = state->shader[WINED3D_SHADER_TYPE_PIXEL];
2703     DWORD rt_mask, rt_mask_bits;
2704     unsigned int i;
2705
2706     if (wined3d_settings.offscreen_rendering_mode != ORM_FBO)
2707         return context_generate_rt_mask_no_fbo(context, wined3d_rendertarget_view_get_surface(rts[0])->container);
2708     else if (!context->render_offscreen)
2709         return context_generate_rt_mask_from_resource(rts[0]->resource);
2710
2711     rt_mask = ps ? ps->reg_maps.rt_mask : 1;
2712     rt_mask &= context->d3d_info->valid_rt_mask;
2713     rt_mask_bits = rt_mask;
2714     i = 0;
2715     while (rt_mask_bits)
2716     {
2717         rt_mask_bits &= ~(1u << i);
2718         if (!rts[i] || rts[i]->format->id == WINED3DFMT_NULL)
2719             rt_mask &= ~(1u << i);
2720
2721         i++;
2722     }
2723
2724     return rt_mask;
2725 }
2726
2727 /* Context activation is done by the caller. */
2728 void context_state_fb(struct wined3d_context *context, const struct wined3d_state *state, DWORD state_id)
2729 {
2730     DWORD rt_mask = find_draw_buffers_mask(context, state);
2731     const struct wined3d_fb_state *fb = state->fb;
2732     DWORD *cur_mask;
2733
2734     if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
2735     {
2736         if (!context->render_offscreen)
2737         {
2738             context_apply_fbo_state(context, GL_FRAMEBUFFER, NULL, NULL,
2739                     WINED3D_LOCATION_DRAWABLE, WINED3D_LOCATION_DRAWABLE);
2740         }
2741         else
2742         {
2743             unsigned int i;
2744
2745             for (i = 0; i < context->gl_info->limits.buffers; ++i)
2746             {
2747                 context->blit_targets[i] = wined3d_rendertarget_view_get_surface(fb->render_targets[i]);
2748             }
2749             context_apply_fbo_state(context, GL_FRAMEBUFFER, context->blit_targets,
2750                     wined3d_rendertarget_view_get_surface(fb->depth_stencil),
2751                     fb->render_targets[0] ? fb->render_targets[0]->resource->draw_binding : 0,
2752                     fb->depth_stencil ? fb->depth_stencil->resource->draw_binding : 0);
2753         }
2754     }
2755
2756     cur_mask = context->current_fbo ? &context->current_fbo->rt_mask : &context->draw_buffers_mask;
2757     if (rt_mask != *cur_mask)
2758     {
2759         context_apply_draw_buffers(context, rt_mask);
2760         *cur_mask = rt_mask;
2761     }
2762     context->constant_update_mask |= WINED3D_SHADER_CONST_PS_Y_CORR;
2763 }
2764
2765 static void context_map_stage(struct wined3d_context *context, DWORD stage, DWORD unit)
2766 {
2767     DWORD i = context->rev_tex_unit_map[unit];
2768     DWORD j = context->tex_unit_map[stage];
2769
2770     TRACE("Mapping stage %u to unit %u.\n", stage, unit);
2771     context->tex_unit_map[stage] = unit;
2772     if (i != WINED3D_UNMAPPED_STAGE && i != stage)
2773         context->tex_unit_map[i] = WINED3D_UNMAPPED_STAGE;
2774
2775     context->rev_tex_unit_map[unit] = stage;
2776     if (j != WINED3D_UNMAPPED_STAGE && j != unit)
2777         context->rev_tex_unit_map[j] = WINED3D_UNMAPPED_STAGE;
2778 }
2779
2780 static void context_invalidate_texture_stage(struct wined3d_context *context, DWORD stage)
2781 {
2782     DWORD i;
2783
2784     for (i = 0; i <= WINED3D_HIGHEST_TEXTURE_STATE; ++i)
2785         context_invalidate_state(context, STATE_TEXTURESTAGE(stage, i));
2786 }
2787
2788 static void context_update_fixed_function_usage_map(struct wined3d_context *context,
2789         const struct wined3d_state *state)
2790 {
2791     UINT i, start, end;
2792
2793     context->fixed_function_usage_map = 0;
2794     for (i = 0; i < MAX_TEXTURES; ++i)
2795     {
2796         enum wined3d_texture_op color_op = state->texture_states[i][WINED3D_TSS_COLOR_OP];
2797         enum wined3d_texture_op alpha_op = state->texture_states[i][WINED3D_TSS_ALPHA_OP];
2798         DWORD color_arg1 = state->texture_states[i][WINED3D_TSS_COLOR_ARG1] & WINED3DTA_SELECTMASK;
2799         DWORD color_arg2 = state->texture_states[i][WINED3D_TSS_COLOR_ARG2] & WINED3DTA_SELECTMASK;
2800         DWORD color_arg3 = state->texture_states[i][WINED3D_TSS_COLOR_ARG0] & WINED3DTA_SELECTMASK;
2801         DWORD alpha_arg1 = state->texture_states[i][WINED3D_TSS_ALPHA_ARG1] & WINED3DTA_SELECTMASK;
2802         DWORD alpha_arg2 = state->texture_states[i][WINED3D_TSS_ALPHA_ARG2] & WINED3DTA_SELECTMASK;
2803         DWORD alpha_arg3 = state->texture_states[i][WINED3D_TSS_ALPHA_ARG0] & WINED3DTA_SELECTMASK;
2804
2805         /* Not used, and disable higher stages. */
2806         if (color_op == WINED3D_TOP_DISABLE)
2807             break;
2808
2809         if (((color_arg1 == WINED3DTA_TEXTURE) && color_op != WINED3D_TOP_SELECT_ARG2)
2810                 || ((color_arg2 == WINED3DTA_TEXTURE) && color_op != WINED3D_TOP_SELECT_ARG1)
2811                 || ((color_arg3 == WINED3DTA_TEXTURE)
2812                     && (color_op == WINED3D_TOP_MULTIPLY_ADD || color_op == WINED3D_TOP_LERP))
2813                 || ((alpha_arg1 == WINED3DTA_TEXTURE) && alpha_op != WINED3D_TOP_SELECT_ARG2)
2814                 || ((alpha_arg2 == WINED3DTA_TEXTURE) && alpha_op != WINED3D_TOP_SELECT_ARG1)
2815                 || ((alpha_arg3 == WINED3DTA_TEXTURE)
2816                     && (alpha_op == WINED3D_TOP_MULTIPLY_ADD || alpha_op == WINED3D_TOP_LERP)))
2817             context->fixed_function_usage_map |= (1u << i);
2818
2819         if ((color_op == WINED3D_TOP_BUMPENVMAP || color_op == WINED3D_TOP_BUMPENVMAP_LUMINANCE)
2820                 && i < MAX_TEXTURES - 1)
2821             context->fixed_function_usage_map |= (1u << (i + 1));
2822     }
2823
2824     if (i < context->lowest_disabled_stage)
2825     {
2826         start = i;
2827         end = context->lowest_disabled_stage;
2828     }
2829     else
2830     {
2831         start = context->lowest_disabled_stage;
2832         end = i;
2833     }
2834
2835     context->lowest_disabled_stage = i;
2836     for (i = start + 1; i < end; ++i)
2837     {
2838         context_invalidate_state(context, STATE_TEXTURESTAGE(i, WINED3D_TSS_COLOR_OP));
2839     }
2840 }
2841
2842 static void context_map_fixed_function_samplers(struct wined3d_context *context,
2843         const struct wined3d_state *state)
2844 {
2845     const struct wined3d_d3d_info *d3d_info = context->d3d_info;
2846     const struct wined3d_gl_info *gl_info = context->gl_info;
2847     unsigned int i, tex;
2848     WORD ffu_map;
2849
2850     context_update_fixed_function_usage_map(context, state);
2851
2852     if (gl_info->limits.combined_samplers >= MAX_COMBINED_SAMPLERS)
2853         return;
2854
2855     ffu_map = context->fixed_function_usage_map;
2856
2857     if (d3d_info->limits.ffp_textures == d3d_info->limits.ffp_blend_stages
2858             || context->lowest_disabled_stage <= d3d_info->limits.ffp_textures)
2859     {
2860         for (i = 0; ffu_map; ffu_map >>= 1, ++i)
2861         {
2862             if (!(ffu_map & 1))
2863                 continue;
2864
2865             if (context->tex_unit_map[i] != i)
2866             {
2867                 context_map_stage(context, i, i);
2868                 context_invalidate_state(context, STATE_SAMPLER(i));
2869                 context_invalidate_texture_stage(context, i);
2870             }
2871         }
2872         return;
2873     }
2874
2875     /* Now work out the mapping */
2876     tex = 0;
2877     for (i = 0; ffu_map; ffu_map >>= 1, ++i)
2878     {
2879         if (!(ffu_map & 1))
2880             continue;
2881
2882         if (context->tex_unit_map[i] != tex)
2883         {
2884             context_map_stage(context, i, tex);
2885             context_invalidate_state(context, STATE_SAMPLER(i));
2886             context_invalidate_texture_stage(context, i);
2887         }
2888
2889         ++tex;
2890     }
2891 }
2892
2893 static void context_map_psamplers(struct wined3d_context *context, const struct wined3d_state *state)
2894 {
2895     const struct wined3d_d3d_info *d3d_info = context->d3d_info;
2896     const struct wined3d_gl_info *gl_info = context->gl_info;
2897     const struct wined3d_shader_resource_info *resource_info =
2898             state->shader[WINED3D_SHADER_TYPE_PIXEL]->reg_maps.resource_info;
2899     unsigned int i;
2900
2901     if (gl_info->limits.combined_samplers >= MAX_COMBINED_SAMPLERS)
2902         return;
2903
2904     for (i = 0; i < MAX_FRAGMENT_SAMPLERS; ++i)
2905     {
2906         if (resource_info[i].type && context->tex_unit_map[i] != i)
2907         {
2908             context_map_stage(context, i, i);
2909             context_invalidate_state(context, STATE_SAMPLER(i));
2910             if (i < d3d_info->limits.ffp_blend_stages)
2911                 context_invalidate_texture_stage(context, i);
2912         }
2913     }
2914 }
2915
2916 static BOOL context_unit_free_for_vs(const struct wined3d_context *context,
2917         const struct wined3d_shader_resource_info *ps_resource_info, DWORD unit)
2918 {
2919     DWORD current_mapping = context->rev_tex_unit_map[unit];
2920
2921     /* Not currently used */
2922     if (current_mapping == WINED3D_UNMAPPED_STAGE)
2923         return TRUE;
2924
2925     if (current_mapping < MAX_FRAGMENT_SAMPLERS)
2926     {
2927         /* Used by a fragment sampler */
2928
2929         if (!ps_resource_info)
2930         {
2931             /* No pixel shader, check fixed function */
2932             return current_mapping >= MAX_TEXTURES || !(context->fixed_function_usage_map & (1u << current_mapping));
2933         }
2934
2935         /* Pixel shader, check the shader's sampler map */
2936         return !ps_resource_info[current_mapping].type;
2937     }
2938
2939     return TRUE;
2940 }
2941
2942 static void context_map_vsamplers(struct wined3d_context *context, BOOL ps, const struct wined3d_state *state)
2943 {
2944     const struct wined3d_shader_resource_info *vs_resource_info =
2945             state->shader[WINED3D_SHADER_TYPE_VERTEX]->reg_maps.resource_info;
2946     const struct wined3d_shader_resource_info *ps_resource_info = NULL;
2947     const struct wined3d_gl_info *gl_info = context->gl_info;
2948     int start = min(MAX_COMBINED_SAMPLERS, gl_info->limits.combined_samplers) - 1;
2949     int i;
2950
2951     if (gl_info->limits.combined_samplers >= MAX_COMBINED_SAMPLERS)
2952         return;
2953
2954     /* Note that we only care if a resource is used or not, not the
2955      * resource's specific type. Otherwise we'd need to call
2956      * shader_update_samplers() here for 1.x pixelshaders. */
2957     if (ps)
2958         ps_resource_info = state->shader[WINED3D_SHADER_TYPE_PIXEL]->reg_maps.resource_info;
2959
2960     for (i = 0; i < MAX_VERTEX_SAMPLERS; ++i)
2961     {
2962         DWORD vsampler_idx = i + MAX_FRAGMENT_SAMPLERS;
2963         if (vs_resource_info[i].type)
2964         {
2965             while (start >= 0)
2966             {
2967                 if (context_unit_free_for_vs(context, ps_resource_info, start))
2968                 {
2969                     if (context->tex_unit_map[vsampler_idx] != start)
2970                     {
2971                         context_map_stage(context, vsampler_idx, start);
2972                         context_invalidate_state(context, STATE_SAMPLER(vsampler_idx));
2973                     }
2974
2975                     --start;
2976                     break;
2977                 }
2978
2979                 --start;
2980             }
2981             if (context->tex_unit_map[vsampler_idx] == WINED3D_UNMAPPED_STAGE)
2982                 WARN("Couldn't find a free texture unit for vertex sampler %u.\n", i);
2983         }
2984     }
2985 }
2986
2987 static void context_update_tex_unit_map(struct wined3d_context *context, const struct wined3d_state *state)
2988 {
2989     BOOL vs = use_vs(state);
2990     BOOL ps = use_ps(state);
2991
2992     /* Try to go for a 1:1 mapping of the samplers when possible. Pixel shaders
2993      * need a 1:1 map at the moment.
2994      * When the mapping of a stage is changed, sampler and ALL texture stage
2995      * states have to be reset. */
2996
2997     if (ps)
2998         context_map_psamplers(context, state);
2999     else
3000         context_map_fixed_function_samplers(context, state);
3001
3002     if (vs)
3003         context_map_vsamplers(context, ps, state);
3004 }
3005
3006 /* Context activation is done by the caller. */
3007 void context_state_drawbuf(struct wined3d_context *context, const struct wined3d_state *state, DWORD state_id)
3008 {
3009     DWORD rt_mask, *cur_mask;
3010
3011     if (isStateDirty(context, STATE_FRAMEBUFFER)) return;
3012
3013     cur_mask = context->current_fbo ? &context->current_fbo->rt_mask : &context->draw_buffers_mask;
3014     rt_mask = find_draw_buffers_mask(context, state);
3015     if (rt_mask != *cur_mask)
3016     {
3017         context_apply_draw_buffers(context, rt_mask);
3018         *cur_mask = rt_mask;
3019     }
3020 }
3021
3022 static BOOL fixed_get_input(BYTE usage, BYTE usage_idx, unsigned int *regnum)
3023 {
3024     if ((usage == WINED3D_DECL_USAGE_POSITION || usage == WINED3D_DECL_USAGE_POSITIONT) && !usage_idx)
3025         *regnum = WINED3D_FFP_POSITION;
3026     else if (usage == WINED3D_DECL_USAGE_BLEND_WEIGHT && !usage_idx)
3027         *regnum = WINED3D_FFP_BLENDWEIGHT;
3028     else if (usage == WINED3D_DECL_USAGE_BLEND_INDICES && !usage_idx)
3029         *regnum = WINED3D_FFP_BLENDINDICES;
3030     else if (usage == WINED3D_DECL_USAGE_NORMAL && !usage_idx)
3031         *regnum = WINED3D_FFP_NORMAL;
3032     else if (usage == WINED3D_DECL_USAGE_PSIZE && !usage_idx)
3033         *regnum = WINED3D_FFP_PSIZE;
3034     else if (usage == WINED3D_DECL_USAGE_COLOR && !usage_idx)
3035         *regnum = WINED3D_FFP_DIFFUSE;
3036     else if (usage == WINED3D_DECL_USAGE_COLOR && usage_idx == 1)
3037         *regnum = WINED3D_FFP_SPECULAR;
3038     else if (usage == WINED3D_DECL_USAGE_TEXCOORD && usage_idx < WINED3DDP_MAXTEXCOORD)
3039         *regnum = WINED3D_FFP_TEXCOORD0 + usage_idx;
3040     else
3041     {
3042         FIXME("Unsupported input stream [usage=%s, usage_idx=%u].\n", debug_d3ddeclusage(usage), usage_idx);
3043         *regnum = ~0U;
3044         return FALSE;
3045     }
3046
3047     return TRUE;
3048 }
3049
3050 /* Context activation is done by the caller. */
3051 void context_stream_info_from_declaration(struct wined3d_context *context,
3052         const struct wined3d_state *state, struct wined3d_stream_info *stream_info)
3053 {
3054     /* We need to deal with frequency data! */
3055     struct wined3d_vertex_declaration *declaration = state->vertex_declaration;
3056     BOOL generic_attributes = context->d3d_info->ffp_generic_attributes;
3057     BOOL use_vshader = use_vs(state);
3058     unsigned int i;
3059
3060     stream_info->use_map = 0;
3061     stream_info->swizzle_map = 0;
3062     stream_info->position_transformed = 0;
3063
3064     if (!declaration)
3065         return;
3066
3067     stream_info->position_transformed = declaration->position_transformed;
3068
3069     /* Translate the declaration into strided data. */
3070     for (i = 0; i < declaration->element_count; ++i)
3071     {
3072         const struct wined3d_vertex_declaration_element *element = &declaration->elements[i];
3073         const struct wined3d_stream_state *stream = &state->streams[element->input_slot];
3074         BOOL stride_used;
3075         unsigned int idx;
3076
3077         TRACE("%p Element %p (%u of %u).\n", declaration->elements,
3078                 element, i + 1, declaration->element_count);
3079
3080         if (!stream->buffer)
3081             continue;
3082
3083         TRACE("offset %u input_slot %u usage_idx %d.\n", element->offset, element->input_slot, element->usage_idx);
3084
3085         if (use_vshader)
3086         {
3087             if (element->output_slot == WINED3D_OUTPUT_SLOT_UNUSED)
3088             {
3089                 stride_used = FALSE;
3090             }
3091             else if (element->output_slot == WINED3D_OUTPUT_SLOT_SEMANTIC)
3092             {
3093                 /* TODO: Assuming vertexdeclarations are usually used with the
3094                  * same or a similar shader, it might be worth it to store the
3095                  * last used output slot and try that one first. */
3096                 stride_used = vshader_get_input(state->shader[WINED3D_SHADER_TYPE_VERTEX],
3097                         element->usage, element->usage_idx, &idx);
3098             }
3099             else
3100             {
3101                 idx = element->output_slot;
3102                 stride_used = TRUE;
3103             }
3104         }
3105         else
3106         {
3107             if (!generic_attributes && !element->ffp_valid)
3108             {
3109                 WARN("Skipping unsupported fixed function element of format %s and usage %s.\n",
3110                         debug_d3dformat(element->format->id), debug_d3ddeclusage(element->usage));
3111                 stride_used = FALSE;
3112             }
3113             else
3114             {
3115                 stride_used = fixed_get_input(element->usage, element->usage_idx, &idx);
3116             }
3117         }
3118
3119         if (stride_used)
3120         {
3121             TRACE("Load %s array %u [usage %s, usage_idx %u, "
3122                     "input_slot %u, offset %u, stride %u, format %s, class %s, step_rate %u].\n",
3123                     use_vshader ? "shader": "fixed function", idx,
3124                     debug_d3ddeclusage(element->usage), element->usage_idx, element->input_slot,
3125                     element->offset, stream->stride, debug_d3dformat(element->format->id),
3126                     debug_d3dinput_classification(element->input_slot_class), element->instance_data_step_rate);
3127
3128             stream_info->elements[idx].format = element->format;
3129             stream_info->elements[idx].data.buffer_object = 0;
3130             stream_info->elements[idx].data.addr = (BYTE *)NULL + stream->offset + element->offset;
3131             stream_info->elements[idx].stride = stream->stride;
3132             stream_info->elements[idx].stream_idx = element->input_slot;
3133             if (stream->flags & WINED3DSTREAMSOURCE_INSTANCEDATA)
3134             {
3135                 stream_info->elements[idx].divisor = 1;
3136             }
3137             else if (element->input_slot_class == WINED3D_INPUT_PER_INSTANCE_DATA)
3138             {
3139                 stream_info->elements[idx].divisor = element->instance_data_step_rate;
3140                 if (!element->instance_data_step_rate)
3141                     FIXME("Instance step rate 0 not implemented.\n");
3142             }
3143             else
3144             {
3145                 stream_info->elements[idx].divisor = 0;
3146             }
3147
3148             if (!context->gl_info->supported[ARB_VERTEX_ARRAY_BGRA]
3149                     && element->format->id == WINED3DFMT_B8G8R8A8_UNORM)
3150             {
3151                 stream_info->swizzle_map |= 1u << idx;
3152             }
3153             stream_info->use_map |= 1u << idx;
3154         }
3155     }
3156 }
3157
3158 /* Context activation is done by the caller. */
3159 static void context_update_stream_info(struct wined3d_context *context, const struct wined3d_state *state)
3160 {
3161     struct wined3d_stream_info *stream_info = &context->stream_info;
3162     const struct wined3d_d3d_info *d3d_info = context->d3d_info;
3163     const struct wined3d_gl_info *gl_info = context->gl_info;
3164     DWORD prev_all_vbo = stream_info->all_vbo;
3165     unsigned int i;
3166     WORD map;
3167
3168     context_stream_info_from_declaration(context, state, stream_info);
3169
3170     stream_info->all_vbo = 1;
3171     context->num_buffer_queries = 0;
3172     for (i = 0, map = stream_info->use_map; map; map >>= 1, ++i)
3173     {
3174         struct wined3d_stream_info_element *element;
3175         struct wined3d_bo_address data;
3176         struct wined3d_buffer *buffer;
3177
3178         if (!(map & 1))
3179             continue;
3180
3181         element = &stream_info->elements[i];
3182         buffer = state->streams[element->stream_idx].buffer;
3183
3184         /* We can't use VBOs if the base vertex index is negative. OpenGL
3185          * doesn't accept negative offsets (or rather offsets bigger than the
3186          * VBO, because the pointer is unsigned), so use system memory
3187          * sources. In most sane cases the pointer - offset will still be > 0,
3188          * otherwise it will wrap around to some big value. Hope that with the
3189          * indices the driver wraps it back internally. If not,
3190          * draw_primitive_immediate_mode() is needed, including a vertex buffer
3191          * path. */
3192         if (state->load_base_vertex_index < 0)
3193         {
3194             WARN_(d3d_perf)("load_base_vertex_index is < 0 (%d), not using VBOs.\n",
3195                     state->load_base_vertex_index);
3196             element->data.buffer_object = 0;
3197             element->data.addr += (ULONG_PTR)wined3d_buffer_load_sysmem(buffer, context);
3198             if ((UINT_PTR)element->data.addr < -state->load_base_vertex_index * element->stride)
3199                 FIXME("System memory vertex data load offset is negative!\n");
3200         }
3201         else
3202         {
3203             wined3d_buffer_load(buffer, context, state);
3204             wined3d_buffer_get_memory(buffer, &data, buffer->locations);
3205             element->data.buffer_object = data.buffer_object;
3206             element->data.addr += (ULONG_PTR)data.addr;
3207         }
3208
3209         if (!element->data.buffer_object)
3210             stream_info->all_vbo = 0;
3211
3212         if (buffer->query)
3213             context->buffer_queries[context->num_buffer_queries++] = buffer->query;
3214
3215         TRACE("Load array %u {%#x:%p}.\n", i, element->data.buffer_object, element->data.addr);
3216     }
3217
3218     if (prev_all_vbo != stream_info->all_vbo)
3219         context_invalidate_state(context, STATE_INDEXBUFFER);
3220
3221     context->use_immediate_mode_draw = FALSE;
3222
3223     if (stream_info->all_vbo)
3224         return;
3225
3226     if (use_vs(state))
3227     {
3228         if (state->vertex_declaration->half_float_conv_needed)
3229         {
3230             TRACE("Using immediate mode draw with vertex shaders for FLOAT16 conversion.\n");
3231             context->use_immediate_mode_draw = TRUE;
3232         }
3233     }
3234     else
3235     {
3236         WORD slow_mask = -!d3d_info->ffp_generic_attributes & (1u << WINED3D_FFP_PSIZE);
3237         slow_mask |= -(!gl_info->supported[ARB_VERTEX_ARRAY_BGRA] && !d3d_info->ffp_generic_attributes)
3238                 & ((1u << WINED3D_FFP_DIFFUSE) | (1u << WINED3D_FFP_SPECULAR) | (1u << WINED3D_FFP_BLENDWEIGHT));
3239
3240         if ((stream_info->position_transformed && !d3d_info->xyzrhw)
3241                 || (stream_info->use_map & slow_mask))
3242             context->use_immediate_mode_draw = TRUE;
3243     }
3244 }
3245
3246 /* Context activation is done by the caller. */
3247 static void context_preload_texture(struct wined3d_context *context,
3248         const struct wined3d_state *state, unsigned int idx)
3249 {
3250     struct wined3d_texture *texture;
3251
3252     if (!(texture = state->textures[idx]))
3253         return;
3254
3255     wined3d_texture_load(texture, context, state->sampler_states[idx][WINED3D_SAMP_SRGB_TEXTURE]);
3256 }
3257
3258 /* Context activation is done by the caller. */
3259 static void context_preload_textures(struct wined3d_context *context, const struct wined3d_state *state)
3260 {
3261     unsigned int i;
3262
3263     if (use_vs(state))
3264     {
3265         for (i = 0; i < MAX_VERTEX_SAMPLERS; ++i)
3266         {
3267             if (state->shader[WINED3D_SHADER_TYPE_VERTEX]->reg_maps.resource_info[i].type)
3268                 context_preload_texture(context, state, MAX_FRAGMENT_SAMPLERS + i);
3269         }
3270     }
3271
3272     if (use_ps(state))
3273     {
3274         for (i = 0; i < MAX_FRAGMENT_SAMPLERS; ++i)
3275         {
3276             if (state->shader[WINED3D_SHADER_TYPE_PIXEL]->reg_maps.resource_info[i].type)
3277                 context_preload_texture(context, state, i);
3278         }
3279     }
3280     else
3281     {
3282         WORD ffu_map = context->fixed_function_usage_map;
3283
3284         for (i = 0; ffu_map; ffu_map >>= 1, ++i)
3285         {
3286             if (ffu_map & 1)
3287                 context_preload_texture(context, state, i);
3288         }
3289     }
3290 }
3291
3292 static void context_load_shader_resources(struct wined3d_context *context, const struct wined3d_state *state)
3293 {
3294     struct wined3d_shader_sampler_map_entry *entry;
3295     struct wined3d_shader_resource_view *view;
3296     struct wined3d_shader *shader;
3297     unsigned int i, j;
3298
3299     for (i = 0; i < WINED3D_SHADER_TYPE_COUNT; ++i)
3300     {
3301         if (!(shader = state->shader[i]))
3302             continue;
3303
3304         for (j = 0; j < WINED3D_MAX_CBS; ++j)
3305         {
3306             if (state->cb[i][j])
3307                 wined3d_buffer_load(state->cb[i][j], context, state);
3308         }
3309
3310         for (j = 0; j < shader->reg_maps.sampler_map.count; ++j)
3311         {
3312             entry = &shader->reg_maps.sampler_map.entries[j];
3313
3314             if (!(view = state->shader_resource_view[i][entry->resource_idx]))
3315             {
3316                 WARN("No resource view bound at index %u, %u.\n", i, entry->resource_idx);
3317                 continue;
3318             }
3319
3320             if (view->resource->type == WINED3D_RTYPE_BUFFER)
3321                 wined3d_buffer_load(buffer_from_resource(view->resource), context, state);
3322             else
3323                 wined3d_texture_load(texture_from_resource(view->resource), context, FALSE);
3324         }
3325     }
3326 }
3327
3328 static void context_bind_shader_resources(struct wined3d_context *context, const struct wined3d_state *state)
3329 {
3330     const struct wined3d_gl_info *gl_info = context->gl_info;
3331     const struct wined3d_device *device = context->device;
3332     struct wined3d_shader_sampler_map_entry *entry;
3333     struct wined3d_shader_resource_view *view;
3334     struct wined3d_sampler *sampler;
3335     struct wined3d_shader *shader;
3336     unsigned int i, j, count;
3337     GLuint sampler_name;
3338
3339     static const struct
3340     {
3341         enum wined3d_shader_type type;
3342         unsigned int base_idx;
3343         unsigned int count;
3344     }
3345     shader_types[] =
3346     {
3347         {WINED3D_SHADER_TYPE_PIXEL,     0,                      MAX_FRAGMENT_SAMPLERS},
3348         {WINED3D_SHADER_TYPE_VERTEX,    MAX_FRAGMENT_SAMPLERS,  MAX_VERTEX_SAMPLERS},
3349     };
3350
3351     for (i = 0; i < ARRAY_SIZE(shader_types); ++i)
3352     {
3353         if (!(shader = state->shader[shader_types[i].type]))
3354             continue;
3355
3356         count = shader->reg_maps.sampler_map.count;
3357         if (count > shader_types[i].count)
3358         {
3359             FIXME("Shader %p needs %u samplers, but only %u are supported.\n",
3360                     shader, count, shader_types[i].count);
3361             count = shader_types[i].count;
3362         }
3363
3364         for (j = 0; j < count; ++j)
3365         {
3366             entry = &shader->reg_maps.sampler_map.entries[j];
3367
3368             if (!(view = state->shader_resource_view[shader_types[i].type][entry->resource_idx]))
3369             {
3370                 WARN("No resource view bound at index %u, %u.\n", shader_types[i].type, entry->resource_idx);
3371                 continue;
3372             }
3373
3374             if (entry->sampler_idx == WINED3D_SAMPLER_DEFAULT)
3375                 sampler_name = device->default_sampler;
3376             else if ((sampler = state->sampler[shader_types[i].type][entry->sampler_idx]))
3377                 sampler_name = sampler->name;
3378             else
3379                 sampler_name = device->null_sampler;
3380
3381             context_active_texture(context, gl_info, shader_types[i].base_idx + entry->bind_idx);
3382             GL_EXTCALL(glBindSampler(shader_types[i].base_idx + entry->bind_idx, sampler_name));
3383             checkGLcall("glBindSampler");
3384             wined3d_shader_resource_view_bind(view, context);
3385         }
3386     }
3387 }
3388
3389 /* Context activation is done by the caller. */
3390 BOOL context_apply_draw_state(struct wined3d_context *context,
3391         const struct wined3d_device *device, const struct wined3d_state *state)
3392 {
3393     const struct StateEntry *state_table = context->state_table;
3394     const struct wined3d_fb_state *fb = state->fb;
3395     unsigned int i;
3396     WORD map;
3397
3398     if (!context_validate_rt_config(context->gl_info->limits.buffers,
3399             fb->render_targets, fb->depth_stencil))
3400         return FALSE;
3401
3402     if (wined3d_settings.offscreen_rendering_mode == ORM_FBO && isStateDirty(context, STATE_FRAMEBUFFER))
3403     {
3404         context_validate_onscreen_formats(context, fb->depth_stencil);
3405     }
3406
3407     /* Preload resources before FBO setup. Texture preload in particular may
3408      * result in changes to the current FBO, due to using e.g. FBO blits for
3409      * updating a resource location. */
3410     context_update_tex_unit_map(context, state);
3411     context_preload_textures(context, state);
3412     context_load_shader_resources(context, state);
3413     /* TODO: Right now the dependency on the vertex shader is necessary
3414      * since context_stream_info_from_declaration depends on the reg_maps of
3415      * the current VS but maybe it's possible to relax the coupling in some
3416      * situations at least. */
3417     if (isStateDirty(context, STATE_VDECL) || isStateDirty(context, STATE_STREAMSRC)
3418             || isStateDirty(context, STATE_SHADER(WINED3D_SHADER_TYPE_VERTEX)))
3419     {
3420         context_update_stream_info(context, state);
3421     }
3422     else
3423     {
3424         for (i = 0, map = context->stream_info.use_map; map; map >>= 1, ++i)
3425         {
3426             if (map & 1)
3427                 buffer_mark_used(state->streams[context->stream_info.elements[i].stream_idx].buffer);
3428         }
3429     }
3430     if (state->index_buffer)
3431     {
3432         if (context->stream_info.all_vbo)
3433             wined3d_buffer_load(state->index_buffer, context, state);
3434         else
3435             wined3d_buffer_load_sysmem(state->index_buffer, context);
3436     }
3437
3438     for (i = 0; i < context->numDirtyEntries; ++i)
3439     {
3440         DWORD rep = context->dirtyArray[i];
3441         DWORD idx = rep / (sizeof(*context->isStateDirty) * CHAR_BIT);
3442         BYTE shift = rep & ((sizeof(*context->isStateDirty) * CHAR_BIT) - 1);
3443         context->isStateDirty[idx] &= ~(1u << shift);
3444         state_table[rep].apply(context, state, rep);
3445     }
3446
3447     if (context->shader_update_mask)
3448     {
3449         device->shader_backend->shader_select(device->shader_priv, context, state);
3450         context->shader_update_mask = 0;
3451     }
3452
3453     if (context->constant_update_mask)
3454     {
3455         device->shader_backend->shader_load_constants(device->shader_priv, context, state);
3456         context->constant_update_mask = 0;
3457     }
3458
3459     if (context->update_shader_resource_bindings)
3460     {
3461         context_bind_shader_resources(context, state);
3462         context->update_shader_resource_bindings = 0;
3463     }
3464
3465     if (wined3d_settings.offscreen_rendering_mode == ORM_FBO)
3466     {
3467         context_check_fbo_status(context, GL_FRAMEBUFFER);
3468     }
3469
3470     context->numDirtyEntries = 0; /* This makes the whole list clean */
3471     context->last_was_blit = FALSE;
3472
3473     return TRUE;
3474 }
3475
3476 static void context_setup_target(struct wined3d_context *context,
3477         struct wined3d_texture *texture, unsigned int sub_resource_idx)
3478 {
3479     BOOL old_render_offscreen = context->render_offscreen, render_offscreen;
3480
3481     render_offscreen = wined3d_resource_is_offscreen(&texture->resource);
3482     if (context->current_rt.texture == texture
3483             && context->current_rt.sub_resource_idx == sub_resource_idx
3484             && render_offscreen == old_render_offscreen)
3485         return;
3486
3487     /* To compensate the lack of format switching with some offscreen rendering methods and on onscreen buffers
3488      * the alpha blend state changes with different render target formats. */
3489     if (!context->current_rt.texture)
3490     {
3491         context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ALPHABLENDENABLE));
3492     }
3493     else
3494     {
3495         const struct wined3d_format *old = context->current_rt.texture->resource.format;
3496         const struct wined3d_format *new = texture->resource.format;
3497
3498         if (old->id != new->id)
3499         {
3500             /* Disable blending when the alpha mask has changed and when a format doesn't support blending. */
3501             if ((old->alpha_size && !new->alpha_size) || (!old->alpha_size && new->alpha_size)
3502                     || !(texture->resource.format_flags & WINED3DFMT_FLAG_POSTPIXELSHADER_BLENDING))
3503                 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_ALPHABLENDENABLE));
3504
3505             /* Update sRGB writing when switching between formats that do/do not support sRGB writing */
3506             if ((context->current_rt.texture->resource.format_flags & WINED3DFMT_FLAG_SRGB_WRITE)
3507                     != (texture->resource.format_flags & WINED3DFMT_FLAG_SRGB_WRITE))
3508                 context_invalidate_state(context, STATE_RENDER(WINED3D_RS_SRGBWRITEENABLE));
3509         }
3510
3511         /* When switching away from an offscreen render target, and we're not
3512          * using FBOs, we have to read the drawable into the texture. This is
3513          * done via PreLoad (and WINED3D_LOCATION_DRAWABLE set on the surface).
3514          * There are some things that need care though. PreLoad needs a GL context,
3515          * and FindContext is called before the context is activated. It also
3516          * has to be called with the old rendertarget active, otherwise a
3517          * wrong drawable is read. */
3518         if (wined3d_settings.offscreen_rendering_mode != ORM_FBO
3519                 && old_render_offscreen && (context->current_rt.texture != texture
3520                 || context->current_rt.sub_resource_idx != sub_resource_idx))
3521         {
3522             unsigned int prev_sub_resource_idx = context->current_rt.sub_resource_idx;
3523             struct wined3d_texture *prev_texture = context->current_rt.texture;
3524
3525             /* Read the back buffer of the old drawable into the destination texture. */
3526             if (prev_texture->texture_srgb.name)
3527                 wined3d_texture_load(prev_texture, context, TRUE);
3528             wined3d_texture_load(prev_texture, context, FALSE);
3529             wined3d_texture_invalidate_location(prev_texture, prev_sub_resource_idx, WINED3D_LOCATION_DRAWABLE);
3530         }
3531     }
3532
3533     context->current_rt.texture = texture;
3534     context->current_rt.sub_resource_idx = sub_resource_idx;
3535     context_set_render_offscreen(context, render_offscreen);
3536 }
3537
3538 struct wined3d_context *context_acquire(const struct wined3d_device *device, struct wined3d_surface *target)
3539 {
3540     struct wined3d_context *current_context = context_get_current();
3541     struct wined3d_swapchain *swapchain = NULL;
3542     struct wined3d_texture *target_texture;
3543     unsigned int target_sub_resource_idx;
3544     struct wined3d_context *context;
3545
3546     TRACE("device %p, target %p.\n", device, target);
3547
3548     if (current_context && current_context->destroyed)
3549         current_context = NULL;
3550
3551     if (target)
3552     {
3553         target_texture = target->container;
3554         target_sub_resource_idx = surface_get_sub_resource_idx(target);
3555     }
3556     else
3557     {
3558         if (current_context
3559                 && current_context->current_rt.texture
3560                 && current_context->device == device)
3561         {
3562             target_texture = current_context->current_rt.texture;
3563             target_sub_resource_idx = current_context->current_rt.sub_resource_idx;
3564         }
3565         else
3566         {
3567             struct wined3d_swapchain *swapchain = device->swapchains[0];
3568
3569             if (swapchain->back_buffers)
3570                 target_texture = swapchain->back_buffers[0];
3571             else
3572                 target_texture = swapchain->front_buffer;
3573             target_sub_resource_idx = 0;
3574         }
3575     }
3576
3577     if (current_context && current_context->current_rt.texture == target_texture)
3578     {
3579         context = current_context;
3580     }
3581     else if ((swapchain = target_texture->swapchain))
3582     {
3583         TRACE("Rendering onscreen.\n");
3584
3585         context = swapchain_get_context(swapchain);
3586     }
3587     else
3588     {
3589         TRACE("Rendering offscreen.\n");
3590
3591         /* Stay with the current context if possible. Otherwise use the
3592          * context for the primary swapchain. */
3593         if (current_context && current_context->device == device)
3594         {
3595             context = current_context;
3596         }
3597         else
3598         {
3599             swapchain = device->swapchains[0];
3600             context = swapchain_get_context(swapchain);
3601         }
3602     }
3603
3604     context_enter(context);
3605     if (swapchain)
3606         context_update_window(context, swapchain->win_handle);
3607     context_setup_target(context, target_texture, target_sub_resource_idx);
3608     if (!context->valid) return context;
3609
3610     if (context != current_context)
3611     {
3612         if (!context_set_current(context))
3613             ERR("Failed to activate the new context.\n");
3614     }
3615     else if (context->needs_set)
3616     {
3617         context_set_gl_context(context);
3618     }
3619
3620     return context;
3621 }