dlls/wined3d/pixelshader.c

   1 /*
   2  * shaders implementation
   3  *
   4  * Copyright 2002-2003 Jason Edmeades
   5  * Copyright 2002-2003 Raphael Junqueira
   6  * Copyright 2004 Christian Costa
   7  * Copyright 2005 Oliver Stieber
   8  * Copyright 2006 Ivan Gyurdiev
   9  * Copyright 2007-2008 Stefan Dösinger for CodeWeavers
  10  *
  11  * This library is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU Lesser General Public
  13  * License as published by the Free Software Foundation; either
  14  * version 2.1 of the License, or (at your option) any later version.
  15  *
  16  * This library is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * Lesser General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU Lesser General Public
  22  * License along with this library; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  24  */
  25
  26 #include "config.h"
  27
  28 #include <math.h>
  29 #include <stdio.h>
  30
  31 #include "wined3d_private.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(d3d_shader);
  34
  35 #define GLINFO_LOCATION ((IWineD3DDeviceImpl *) This->baseShader.device)->adapter->gl_info
  36
  37 static HRESULT  WINAPI IWineD3DPixelShaderImpl_QueryInterface(IWineD3DPixelShader *iface, REFIID riid, LPVOID *ppobj) {
  38     TRACE("iface %p, riid %s, ppobj %p\n", iface, debugstr_guid(riid), ppobj);
  39
  40     if (IsEqualGUID(riid, &IID_IWineD3DPixelShader)
  41             || IsEqualGUID(riid, &IID_IWineD3DBaseShader)
  42             || IsEqualGUID(riid, &IID_IWineD3DBase)
  43             || IsEqualGUID(riid, &IID_IUnknown))
  44     {
  45         IUnknown_AddRef(iface);
  46         *ppobj = iface;
  47         return S_OK;
  48     }
  49
  50     WARN("%s not implemented, returning E_NOINTERFACE\n", debugstr_guid(riid));
  51
  52     *ppobj = NULL;
  53     return E_NOINTERFACE;
  54 }
  55
  56 static ULONG  WINAPI IWineD3DPixelShaderImpl_AddRef(IWineD3DPixelShader *iface) {
  57     IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;
  58     ULONG refcount = InterlockedIncrement(&This->baseShader.ref);
  59
  60     TRACE("%p increasing refcount to %u\n", This, refcount);
  61
  62     return refcount;
  63 }
  64
  65 static ULONG  WINAPI IWineD3DPixelShaderImpl_Release(IWineD3DPixelShader *iface) {
  66     IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;
  67     ULONG refcount = InterlockedDecrement(&This->baseShader.ref);
  68
  69     TRACE("%p decreasing refcount to %u\n", This, refcount);
  70
  71     if (!refcount)
  72     {
  73         shader_cleanup((IWineD3DBaseShader *)iface);
  74         HeapFree(GetProcessHeap(), 0, This);
  75     }
  76
  77     return refcount;
  78 }
  79
  80 /* *******************************************
  81    IWineD3DPixelShader IWineD3DPixelShader parts follow
  82    ******************************************* */
  83
  84 static HRESULT  WINAPI IWineD3DPixelShaderImpl_GetParent(IWineD3DPixelShader *iface, IUnknown** parent){
  85     IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;
  86
  87     *parent = This->parent;
  88     IUnknown_AddRef(*parent);
  89     TRACE("(%p) : returning %p\n", This, *parent);
  90     return WINED3D_OK;
  91 }
  92
  93 static HRESULT  WINAPI IWineD3DPixelShaderImpl_GetDevice(IWineD3DPixelShader* iface, IWineD3DDevice **pDevice){
  94     IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;
  95     IWineD3DDevice_AddRef(This->baseShader.device);
  96     *pDevice = This->baseShader.device;
  97     TRACE("(%p) returning %p\n", This, *pDevice);
  98     return WINED3D_OK;
  99 }
 100
 101
 102 static HRESULT  WINAPI IWineD3DPixelShaderImpl_GetFunction(IWineD3DPixelShader* impl, VOID* pData, UINT* pSizeOfData) {
 103   IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)impl;
 104   TRACE("(%p) : pData(%p), pSizeOfData(%p)\n", This, pData, pSizeOfData);
 105
 106   if (NULL == pData) {
 107     *pSizeOfData = This->baseShader.functionLength;
 108     return WINED3D_OK;
 109   }
 110   if (*pSizeOfData < This->baseShader.functionLength) {
 111     /* MSDN claims (for d3d8 at least) that if *pSizeOfData is smaller
 112      * than the required size we should write the required size and
 113      * return D3DERR_MOREDATA. That's not actually true. */
 114     return WINED3DERR_INVALIDCALL;
 115   }
 116
 117   TRACE("(%p) : GetFunction copying to %p\n", This, pData);
 118   memcpy(pData, This->baseShader.function, This->baseShader.functionLength);
 119
 120   return WINED3D_OK;
 121 }
 122
 123 static void pshader_set_limits(IWineD3DPixelShaderImpl *This)
 124 {
 125     DWORD shader_version = WINED3D_SHADER_VERSION(This->baseShader.reg_maps.shader_version.major,
 126             This->baseShader.reg_maps.shader_version.minor);
 127
 128     This->baseShader.limits.attributes = 0;
 129     This->baseShader.limits.address = 0;
 130     This->baseShader.limits.packed_output = 0;
 131
 132     switch (shader_version)
 133     {
 134         case WINED3D_SHADER_VERSION(1,0):
 135         case WINED3D_SHADER_VERSION(1,1):
 136         case WINED3D_SHADER_VERSION(1,2):
 137         case WINED3D_SHADER_VERSION(1,3):
 138             This->baseShader.limits.temporary = 2;
 139             This->baseShader.limits.constant_float = 8;
 140             This->baseShader.limits.constant_int = 0;
 141             This->baseShader.limits.constant_bool = 0;
 142             This->baseShader.limits.texcoord = 4;
 143             This->baseShader.limits.sampler = 4;
 144             This->baseShader.limits.packed_input = 0;
 145             This->baseShader.limits.label = 0;
 146             break;
 147
 148         case WINED3D_SHADER_VERSION(1,4):
 149             This->baseShader.limits.temporary = 6;
 150             This->baseShader.limits.constant_float = 8;
 151             This->baseShader.limits.constant_int = 0;
 152             This->baseShader.limits.constant_bool = 0;
 153             This->baseShader.limits.texcoord = 6;
 154             This->baseShader.limits.sampler = 6;
 155             This->baseShader.limits.packed_input = 0;
 156             This->baseShader.limits.label = 0;
 157             break;
 158
 159         /* FIXME: temporaries must match D3DPSHADERCAPS2_0.NumTemps */
 160         case WINED3D_SHADER_VERSION(2,0):
 161             This->baseShader.limits.temporary = 32;
 162             This->baseShader.limits.constant_float = 32;
 163             This->baseShader.limits.constant_int = 16;
 164             This->baseShader.limits.constant_bool = 16;
 165             This->baseShader.limits.texcoord = 8;
 166             This->baseShader.limits.sampler = 16;
 167             This->baseShader.limits.packed_input = 0;
 168             break;
 169
 170         case WINED3D_SHADER_VERSION(2,1):
 171             This->baseShader.limits.temporary = 32;
 172             This->baseShader.limits.constant_float = 32;
 173             This->baseShader.limits.constant_int = 16;
 174             This->baseShader.limits.constant_bool = 16;
 175             This->baseShader.limits.texcoord = 8;
 176             This->baseShader.limits.sampler = 16;
 177             This->baseShader.limits.packed_input = 0;
 178             This->baseShader.limits.label = 16;
 179             break;
 180
 181         case WINED3D_SHADER_VERSION(4,0):
 182             FIXME("Using 3.0 limits for 4.0 shader\n");
 183             /* Fall through */
 184
 185         case WINED3D_SHADER_VERSION(3,0):
 186             This->baseShader.limits.temporary = 32;
 187             This->baseShader.limits.constant_float = 224;
 188             This->baseShader.limits.constant_int = 16;
 189             This->baseShader.limits.constant_bool = 16;
 190             This->baseShader.limits.texcoord = 0;
 191             This->baseShader.limits.sampler = 16;
 192             This->baseShader.limits.packed_input = 12;
 193             This->baseShader.limits.label = 16; /* FIXME: 2048 */
 194             break;
 195
 196         default:
 197             This->baseShader.limits.temporary = 32;
 198             This->baseShader.limits.constant_float = 32;
 199             This->baseShader.limits.constant_int = 16;
 200             This->baseShader.limits.constant_bool = 16;
 201             This->baseShader.limits.texcoord = 8;
 202             This->baseShader.limits.sampler = 16;
 203             This->baseShader.limits.packed_input = 0;
 204             This->baseShader.limits.label = 0;
 205             FIXME("Unrecognized pixel shader version %u.%u\n",
 206                     This->baseShader.reg_maps.shader_version.major,
 207                     This->baseShader.reg_maps.shader_version.minor);
 208     }
 209 }
 210
 211 static HRESULT WINAPI IWineD3DPixelShaderImpl_SetFunction(IWineD3DPixelShader *iface,
 212         const DWORD *pFunction, const struct wined3d_shader_signature *output_signature)
 213 {
 214     IWineD3DPixelShaderImpl *This =(IWineD3DPixelShaderImpl *)iface;
 215     unsigned int i, highest_reg_used = 0, num_regs_used = 0;
 216     shader_reg_maps *reg_maps = &This->baseShader.reg_maps;
 217     const struct wined3d_shader_frontend *fe;
 218     HRESULT hr;
 219
 220     TRACE("(%p) : pFunction %p\n", iface, pFunction);
 221
 222     fe = shader_select_frontend(*pFunction);
 223     if (!fe)
 224     {
 225         FIXME("Unable to find frontend for shader.\n");
 226         return WINED3DERR_INVALIDCALL;
 227     }
 228     This->baseShader.frontend = fe;
 229     This->baseShader.frontend_data = fe->shader_init(pFunction, output_signature);
 230     if (!This->baseShader.frontend_data)
 231     {
 232         FIXME("Failed to initialize frontend.\n");
 233         return WINED3DERR_INVALIDCALL;
 234     }
 235
 236     /* First pass: trace shader */
 237     if (TRACE_ON(d3d_shader)) shader_trace_init(fe, This->baseShader.frontend_data, pFunction);
 238
 239     /* Initialize immediate constant lists */
 240     list_init(&This->baseShader.constantsF);
 241     list_init(&This->baseShader.constantsB);
 242     list_init(&This->baseShader.constantsI);
 243
 244     /* Second pass: figure out which registers are used, what the semantics are, etc.. */
 245     hr = shader_get_registers_used((IWineD3DBaseShader *)This, fe,
 246             reg_maps, NULL, This->input_signature, NULL,
 247             pFunction, GL_LIMITS(pshader_constantsF));
 248     if (FAILED(hr)) return hr;
 249
 250     pshader_set_limits(This);
 251
 252     for (i = 0; i < MAX_REG_INPUT; ++i)
 253     {
 254         if (This->input_reg_used[i])
 255         {
 256             ++num_regs_used;
 257             highest_reg_used = i;
 258         }
 259     }
 260
 261     /* Don't do any register mapping magic if it is not needed, or if we can't
 262      * achieve anything anyway */
 263     if (highest_reg_used < (GL_LIMITS(glsl_varyings) / 4)
 264             || num_regs_used > (GL_LIMITS(glsl_varyings) / 4))
 265     {
 266         if (num_regs_used > (GL_LIMITS(glsl_varyings) / 4))
 267         {
 268             /* This happens with relative addressing. The input mapper function
 269              * warns about this if the higher registers are declared too, so
 270              * don't write a FIXME here */
 271             WARN("More varying registers used than supported\n");
 272         }
 273
 274         for (i = 0; i < MAX_REG_INPUT; ++i)
 275         {
 276             This->input_reg_map[i] = i;
 277         }
 278
 279         This->declared_in_count = highest_reg_used + 1;
 280     }
 281     else
 282     {
 283         This->declared_in_count = 0;
 284         for (i = 0; i < MAX_REG_INPUT; ++i)
 285         {
 286             if (This->input_reg_used[i]) This->input_reg_map[i] = This->declared_in_count++;
 287             else This->input_reg_map[i] = ~0U;
 288         }
 289     }
 290
 291     This->baseShader.load_local_constsF = FALSE;
 292
 293     TRACE("(%p) : Copying the function\n", This);
 294
 295     This->baseShader.function = HeapAlloc(GetProcessHeap(), 0, This->baseShader.functionLength);
 296     if (!This->baseShader.function) return E_OUTOFMEMORY;
 297     memcpy(This->baseShader.function, pFunction, This->baseShader.functionLength);
 298
 299     return WINED3D_OK;
 300 }
 301
 302 void pixelshader_update_samplers(struct shader_reg_maps *reg_maps, IWineD3DBaseTexture * const *textures)
 303 {
 304     WINED3DSAMPLER_TEXTURE_TYPE *sampler_type = reg_maps->sampler_type;
 305     unsigned int i;
 306
 307     if (reg_maps->shader_version.major != 1) return;
 308
 309     for (i = 0; i < max(MAX_FRAGMENT_SAMPLERS, MAX_VERTEX_SAMPLERS); ++i)
 310     {
 311         /* We don't sample from this sampler */
 312         if (!sampler_type[i]) continue;
 313
 314         if (!textures[i])
 315         {
 316             ERR("No texture bound to sampler %u, using 2D\n", i);
 317             sampler_type[i] = WINED3DSTT_2D;
 318             continue;
 319         }
 320
 321         switch (IWineD3DBaseTexture_GetTextureDimensions(textures[i]))
 322         {
 323             case GL_TEXTURE_RECTANGLE_ARB:
 324             case GL_TEXTURE_2D:
 325                 /* We have to select between texture rectangles and 2D textures later because 2.0 and
 326                  * 3.0 shaders only have WINED3DSTT_2D as well */
 327                 sampler_type[i] = WINED3DSTT_2D;
 328                 break;
 329
 330             case GL_TEXTURE_3D:
 331                 sampler_type[i] = WINED3DSTT_VOLUME;
 332                 break;
 333
 334             case GL_TEXTURE_CUBE_MAP_ARB:
 335                 sampler_type[i] = WINED3DSTT_CUBE;
 336                 break;
 337
 338             default:
 339                 FIXME("Unrecognized texture type %#x, using 2D\n",
 340                         IWineD3DBaseTexture_GetTextureDimensions(textures[i]));
 341                 sampler_type[i] = WINED3DSTT_2D;
 342         }
 343     }
 344 }
 345
 346 const IWineD3DPixelShaderVtbl IWineD3DPixelShader_Vtbl =
 347 {
 348     /*** IUnknown methods ***/
 349     IWineD3DPixelShaderImpl_QueryInterface,
 350     IWineD3DPixelShaderImpl_AddRef,
 351     IWineD3DPixelShaderImpl_Release,
 352     /*** IWineD3DBase methods ***/
 353     IWineD3DPixelShaderImpl_GetParent,
 354     /*** IWineD3DBaseShader methods ***/
 355     IWineD3DPixelShaderImpl_SetFunction,
 356     /*** IWineD3DPixelShader methods ***/
 357     IWineD3DPixelShaderImpl_GetDevice,
 358     IWineD3DPixelShaderImpl_GetFunction
 359 };
 360
 361 void find_ps_compile_args(IWineD3DPixelShaderImpl *shader, IWineD3DStateBlockImpl *stateblock, struct ps_compile_args *args) {
 362     UINT i;
 363     IWineD3DBaseTextureImpl *tex;
 364
 365     memset(args, 0, sizeof(*args)); /* FIXME: Make sure all bits are set */
 366     args->srgb_correction = stateblock->renderState[WINED3DRS_SRGBWRITEENABLE] ? 1 : 0;
 367     args->np2_fixup = 0;
 368
 369     for(i = 0; i < MAX_FRAGMENT_SAMPLERS; i++) {
 370         if (!shader->baseShader.reg_maps.sampler_type[i]) continue;
 371         tex = (IWineD3DBaseTextureImpl *) stateblock->textures[i];
 372         if(!tex) {
 373             args->color_fixup[i] = COLOR_FIXUP_IDENTITY;
 374             continue;
 375         }
 376         args->color_fixup[i] = tex->resource.format_desc->color_fixup;
 377
 378         /* Flag samplers that need NP2 texcoord fixup. */
 379         if(!tex->baseTexture.pow2Matrix_identity) {
 380             args->np2_fixup |= (1 << i);
 381         }
 382     }
 383     if (shader->baseShader.reg_maps.shader_version.major >= 3)
 384     {
 385         if (((IWineD3DDeviceImpl *)shader->baseShader.device)->strided_streams.position_transformed)
 386         {
 387             args->vp_mode = pretransformed;
 388         }
 389         else if (use_vs(stateblock))
 390         {
 391             args->vp_mode = vertexshader;
 392         } else {
 393             args->vp_mode = fixedfunction;
 394         }
 395         args->fog = FOG_OFF;
 396     } else {
 397         args->vp_mode = vertexshader;
 398         if(stateblock->renderState[WINED3DRS_FOGENABLE]) {
 399             switch(stateblock->renderState[WINED3DRS_FOGTABLEMODE]) {
 400                 case WINED3DFOG_NONE:
 401                     if (((IWineD3DDeviceImpl *)shader->baseShader.device)->strided_streams.position_transformed
 402                             || use_vs(stateblock))
 403                     {
 404                         args->fog = FOG_LINEAR;
 405                         break;
 406                     }
 407                     switch(stateblock->renderState[WINED3DRS_FOGVERTEXMODE]) {
 408                         case WINED3DFOG_NONE: /* Drop through */
 409                         case WINED3DFOG_LINEAR: args->fog = FOG_LINEAR; break;
 410                         case WINED3DFOG_EXP:    args->fog = FOG_EXP;    break;
 411                         case WINED3DFOG_EXP2:   args->fog = FOG_EXP2;   break;
 412                     }
 413                     break;
 414
 415                 case WINED3DFOG_LINEAR: args->fog = FOG_LINEAR; break;
 416                 case WINED3DFOG_EXP:    args->fog = FOG_EXP;    break;
 417                 case WINED3DFOG_EXP2:   args->fog = FOG_EXP2;   break;
 418             }
 419         } else {
 420             args->fog = FOG_OFF;
 421         }
 422     }
 423 }