workbench/libs/mesa/src/gallium/drivers/softpipe/sp_state_shader.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "sp_context.h"
  29 #include "sp_state.h"
  30 #include "sp_fs.h"
  31 #include "sp_texture.h"
  32
  33 #include "pipe/p_defines.h"
  34 #include "util/u_memory.h"
  35 #include "util/u_inlines.h"
  36 #include "draw/draw_context.h"
  37 #include "draw/draw_vs.h"
  38 #include "draw/draw_gs.h"
  39 #include "tgsi/tgsi_dump.h"
  40 #include "tgsi/tgsi_exec.h"
  41 #include "tgsi/tgsi_scan.h"
  42 #include "tgsi/tgsi_parse.h"
  43
  44
  45 static void *
  46 softpipe_create_fs_state(struct pipe_context *pipe,
  47                          const struct pipe_shader_state *templ)
  48 {
  49    struct softpipe_context *softpipe = softpipe_context(pipe);
  50    struct sp_fragment_shader *state;
  51    unsigned i;
  52
  53    /* debug */
  54    if (softpipe->dump_fs)
  55       tgsi_dump(templ->tokens, 0);
  56
  57    /* codegen */
  58    state = softpipe_create_fs_sse( softpipe, templ );
  59    if (!state) {
  60       state = softpipe_create_fs_exec( softpipe, templ );
  61    }
  62
  63    if (!state)
  64       return NULL;
  65
  66    /* draw's fs state */
  67    state->draw_shader = draw_create_fragment_shader(softpipe->draw, templ);
  68    if (!state->draw_shader) {
  69       state->delete( state );
  70       return NULL;
  71    }
  72
  73    /* get/save the summary info for this shader */
  74    tgsi_scan_shader(templ->tokens, &state->info);
  75
  76    for (i = 0; i < state->info.num_properties; ++i) {
  77       if (state->info.properties[i].name == TGSI_PROPERTY_FS_COORD_ORIGIN)
  78          state->origin_lower_left = state->info.properties[i].data[0];
  79       else if (state->info.properties[i].name == TGSI_PROPERTY_FS_COORD_PIXEL_CENTER)
  80          state->pixel_center_integer = state->info.properties[i].data[0];
  81       else if (state->info.properties[i].name == TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS)
  82          state->color0_writes_all_cbufs = state->info.properties[i].data[0];
  83    }
  84
  85    return state;
  86 }
  87
  88
  89 static void
  90 softpipe_bind_fs_state(struct pipe_context *pipe, void *fs)
  91 {
  92    struct softpipe_context *softpipe = softpipe_context(pipe);
  93
  94    if (softpipe->fs == fs)
  95       return;
  96
  97    draw_flush(softpipe->draw);
  98
  99    softpipe->fs = fs;
 100
 101    draw_bind_fragment_shader(softpipe->draw,
 102                              (softpipe->fs ? softpipe->fs->draw_shader : NULL));
 103
 104    softpipe->dirty |= SP_NEW_FS;
 105 }
 106
 107
 108 static void
 109 softpipe_delete_fs_state(struct pipe_context *pipe, void *fs)
 110 {
 111    struct softpipe_context *softpipe = softpipe_context(pipe);
 112    struct sp_fragment_shader *state = fs;
 113
 114    assert(fs != softpipe_context(pipe)->fs);
 115
 116    if (softpipe->fs_machine->Tokens == state->shader.tokens) {
 117       /* unbind the shader from the tgsi executor if we're
 118        * deleting it.
 119        */
 120       tgsi_exec_machine_bind_shader(softpipe->fs_machine, NULL, 0, NULL);
 121    }
 122
 123    draw_delete_fragment_shader(softpipe->draw, state->draw_shader);
 124
 125    state->delete( state );
 126 }
 127
 128
 129 static void *
 130 softpipe_create_vs_state(struct pipe_context *pipe,
 131                          const struct pipe_shader_state *templ)
 132 {
 133    struct softpipe_context *softpipe = softpipe_context(pipe);
 134    struct sp_vertex_shader *state;
 135
 136    state = CALLOC_STRUCT(sp_vertex_shader);
 137    if (state == NULL )
 138       goto fail;
 139
 140    /* copy shader tokens, the ones passed in will go away.
 141     */
 142    state->shader.tokens = tgsi_dup_tokens(templ->tokens);
 143    if (state->shader.tokens == NULL)
 144       goto fail;
 145
 146    state->draw_data = draw_create_vertex_shader(softpipe->draw, templ);
 147    if (state->draw_data == NULL)
 148       goto fail;
 149
 150    state->max_sampler = state->draw_data->info.file_max[TGSI_FILE_SAMPLER];
 151
 152    return state;
 153
 154 fail:
 155    if (state) {
 156       FREE( (void *)state->shader.tokens );
 157       FREE( state->draw_data );
 158       FREE( state );
 159    }
 160    return NULL;
 161 }
 162
 163
 164 static void
 165 softpipe_bind_vs_state(struct pipe_context *pipe, void *vs)
 166 {
 167    struct softpipe_context *softpipe = softpipe_context(pipe);
 168
 169    softpipe->vs = (struct sp_vertex_shader *) vs;
 170
 171    draw_bind_vertex_shader(softpipe->draw,
 172                            (softpipe->vs ? softpipe->vs->draw_data : NULL));
 173
 174    softpipe->dirty |= SP_NEW_VS;
 175 }
 176
 177
 178 static void
 179 softpipe_delete_vs_state(struct pipe_context *pipe, void *vs)
 180 {
 181    struct softpipe_context *softpipe = softpipe_context(pipe);
 182
 183    struct sp_vertex_shader *state = (struct sp_vertex_shader *) vs;
 184
 185    draw_delete_vertex_shader(softpipe->draw, state->draw_data);
 186    FREE( (void *)state->shader.tokens );
 187    FREE( state );
 188 }
 189
 190
 191 static void *
 192 softpipe_create_gs_state(struct pipe_context *pipe,
 193                          const struct pipe_shader_state *templ)
 194 {
 195    struct softpipe_context *softpipe = softpipe_context(pipe);
 196    struct sp_geometry_shader *state;
 197
 198    state = CALLOC_STRUCT(sp_geometry_shader);
 199    if (state == NULL )
 200       goto fail;
 201
 202    /* debug */
 203    if (softpipe->dump_gs)
 204       tgsi_dump(templ->tokens, 0);
 205
 206    /* copy shader tokens, the ones passed in will go away.
 207     */
 208    state->shader.tokens = tgsi_dup_tokens(templ->tokens);
 209    if (state->shader.tokens == NULL)
 210       goto fail;
 211
 212    state->draw_data = draw_create_geometry_shader(softpipe->draw, templ);
 213    if (state->draw_data == NULL)
 214       goto fail;
 215
 216    state->max_sampler = state->draw_data->info.file_max[TGSI_FILE_SAMPLER];
 217
 218    return state;
 219
 220 fail:
 221    if (state) {
 222       FREE( (void *)state->shader.tokens );
 223       FREE( state->draw_data );
 224       FREE( state );
 225    }
 226    return NULL;
 227 }
 228
 229
 230 static void
 231 softpipe_bind_gs_state(struct pipe_context *pipe, void *gs)
 232 {
 233    struct softpipe_context *softpipe = softpipe_context(pipe);
 234
 235    softpipe->gs = (struct sp_geometry_shader *)gs;
 236
 237    draw_bind_geometry_shader(softpipe->draw,
 238                              (softpipe->gs ? softpipe->gs->draw_data : NULL));
 239
 240    softpipe->dirty |= SP_NEW_GS;
 241 }
 242
 243
 244 static void
 245 softpipe_delete_gs_state(struct pipe_context *pipe, void *gs)
 246 {
 247    struct softpipe_context *softpipe = softpipe_context(pipe);
 248
 249    struct sp_geometry_shader *state =
 250       (struct sp_geometry_shader *)gs;
 251
 252    draw_delete_geometry_shader(softpipe->draw,
 253                                (state) ? state->draw_data : 0);
 254    FREE(state);
 255 }
 256
 257
 258 static void
 259 softpipe_set_constant_buffer(struct pipe_context *pipe,
 260                              uint shader, uint index,
 261                              struct pipe_resource *constants)
 262 {
 263    struct softpipe_context *softpipe = softpipe_context(pipe);
 264    unsigned size = constants ? constants->width0 : 0;
 265    const void *data = constants ? softpipe_resource(constants)->data : NULL;
 266
 267    assert(shader < PIPE_SHADER_TYPES);
 268
 269    draw_flush(softpipe->draw);
 270
 271    /* note: reference counting */
 272    pipe_resource_reference(&softpipe->constants[shader][index], constants);
 273
 274    if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) {
 275       draw_set_mapped_constant_buffer(softpipe->draw, shader, index, data, size);
 276    }
 277
 278    softpipe->mapped_constants[shader][index] = data;
 279    softpipe->const_buffer_size[shader][index] = size;
 280
 281    softpipe->dirty |= SP_NEW_CONSTANTS;
 282 }
 283
 284
 285 void
 286 softpipe_init_shader_funcs(struct pipe_context *pipe)
 287 {
 288    pipe->create_fs_state = softpipe_create_fs_state;
 289    pipe->bind_fs_state   = softpipe_bind_fs_state;
 290    pipe->delete_fs_state = softpipe_delete_fs_state;
 291
 292    pipe->create_vs_state = softpipe_create_vs_state;
 293    pipe->bind_vs_state   = softpipe_bind_vs_state;
 294    pipe->delete_vs_state = softpipe_delete_vs_state;
 295
 296    pipe->create_gs_state = softpipe_create_gs_state;
 297    pipe->bind_gs_state   = softpipe_bind_gs_state;
 298    pipe->delete_gs_state = softpipe_delete_gs_state;
 299
 300    pipe->set_constant_buffer = softpipe_set_constant_buffer;
 301 }