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    draw_flush(softpipe->draw);
  95
  96    if (softpipe->fs == fs)
  97       return;
  98
  99    draw_flush(softpipe->draw);
 100
 101    softpipe->fs = fs;
 102
 103    draw_bind_fragment_shader(softpipe->draw,
 104                              (softpipe->fs ? softpipe->fs->draw_shader : NULL));
 105
 106    softpipe->dirty |= SP_NEW_FS;
 107 }
 108
 109
 110 static void
 111 softpipe_delete_fs_state(struct pipe_context *pipe, void *fs)
 112 {
 113    struct softpipe_context *softpipe = softpipe_context(pipe);
 114    struct sp_fragment_shader *state = fs;
 115
 116    assert(fs != softpipe_context(pipe)->fs);
 117
 118    if (softpipe->fs_machine->Tokens == state->shader.tokens) {
 119       /* unbind the shader from the tgsi executor if we're
 120        * deleting it.
 121        */
 122       tgsi_exec_machine_bind_shader(softpipe->fs_machine, NULL, 0, NULL);
 123    }
 124
 125    draw_delete_fragment_shader(softpipe->draw, state->draw_shader);
 126
 127    state->delete( state );
 128 }
 129
 130
 131 static void *
 132 softpipe_create_vs_state(struct pipe_context *pipe,
 133                          const struct pipe_shader_state *templ)
 134 {
 135    struct softpipe_context *softpipe = softpipe_context(pipe);
 136    struct sp_vertex_shader *state;
 137
 138    state = CALLOC_STRUCT(sp_vertex_shader);
 139    if (state == NULL )
 140       goto fail;
 141
 142    /* copy shader tokens, the ones passed in will go away.
 143     */
 144    state->shader.tokens = tgsi_dup_tokens(templ->tokens);
 145    if (state->shader.tokens == NULL)
 146       goto fail;
 147
 148    state->draw_data = draw_create_vertex_shader(softpipe->draw, templ);
 149    if (state->draw_data == NULL)
 150       goto fail;
 151
 152    state->max_sampler = state->draw_data->info.file_max[TGSI_FILE_SAMPLER];
 153
 154    return state;
 155
 156 fail:
 157    if (state) {
 158       FREE( (void *)state->shader.tokens );
 159       FREE( state->draw_data );
 160       FREE( state );
 161    }
 162    return NULL;
 163 }
 164
 165
 166 static void
 167 softpipe_bind_vs_state(struct pipe_context *pipe, void *vs)
 168 {
 169    struct softpipe_context *softpipe = softpipe_context(pipe);
 170
 171    softpipe->vs = (struct sp_vertex_shader *) vs;
 172
 173    draw_bind_vertex_shader(softpipe->draw,
 174                            (softpipe->vs ? softpipe->vs->draw_data : NULL));
 175
 176    softpipe->dirty |= SP_NEW_VS;
 177 }
 178
 179
 180 static void
 181 softpipe_delete_vs_state(struct pipe_context *pipe, void *vs)
 182 {
 183    struct softpipe_context *softpipe = softpipe_context(pipe);
 184
 185    struct sp_vertex_shader *state = (struct sp_vertex_shader *) vs;
 186
 187    draw_delete_vertex_shader(softpipe->draw, state->draw_data);
 188    FREE( (void *)state->shader.tokens );
 189    FREE( state );
 190 }
 191
 192
 193 static void *
 194 softpipe_create_gs_state(struct pipe_context *pipe,
 195                          const struct pipe_shader_state *templ)
 196 {
 197    struct softpipe_context *softpipe = softpipe_context(pipe);
 198    struct sp_geometry_shader *state;
 199
 200    state = CALLOC_STRUCT(sp_geometry_shader);
 201    if (state == NULL )
 202       goto fail;
 203
 204    /* debug */
 205    if (softpipe->dump_gs)
 206       tgsi_dump(templ->tokens, 0);
 207
 208    /* copy shader tokens, the ones passed in will go away.
 209     */
 210    state->shader.tokens = tgsi_dup_tokens(templ->tokens);
 211    if (state->shader.tokens == NULL)
 212       goto fail;
 213
 214    state->draw_data = draw_create_geometry_shader(softpipe->draw, templ);
 215    if (state->draw_data == NULL)
 216       goto fail;
 217
 218    state->max_sampler = state->draw_data->info.file_max[TGSI_FILE_SAMPLER];
 219
 220    return state;
 221
 222 fail:
 223    if (state) {
 224       FREE( (void *)state->shader.tokens );
 225       FREE( state->draw_data );
 226       FREE( state );
 227    }
 228    return NULL;
 229 }
 230
 231
 232 static void
 233 softpipe_bind_gs_state(struct pipe_context *pipe, void *gs)
 234 {
 235    struct softpipe_context *softpipe = softpipe_context(pipe);
 236
 237    softpipe->gs = (struct sp_geometry_shader *)gs;
 238
 239    draw_bind_geometry_shader(softpipe->draw,
 240                              (softpipe->gs ? softpipe->gs->draw_data : NULL));
 241
 242    softpipe->dirty |= SP_NEW_GS;
 243 }
 244
 245
 246 static void
 247 softpipe_delete_gs_state(struct pipe_context *pipe, void *gs)
 248 {
 249    struct softpipe_context *softpipe = softpipe_context(pipe);
 250
 251    struct sp_geometry_shader *state =
 252       (struct sp_geometry_shader *)gs;
 253
 254    draw_delete_geometry_shader(softpipe->draw,
 255                                (state) ? state->draw_data : 0);
 256    FREE(state);
 257 }
 258
 259
 260 static void
 261 softpipe_set_constant_buffer(struct pipe_context *pipe,
 262                              uint shader, uint index,
 263                              struct pipe_resource *constants)
 264 {
 265    struct softpipe_context *softpipe = softpipe_context(pipe);
 266    unsigned size = constants ? constants->width0 : 0;
 267    const void *data = constants ? softpipe_resource(constants)->data : NULL;
 268
 269    assert(shader < PIPE_SHADER_TYPES);
 270
 271    draw_flush(softpipe->draw);
 272
 273    /* note: reference counting */
 274    pipe_resource_reference(&softpipe->constants[shader][index], constants);
 275
 276    if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) {
 277       draw_set_mapped_constant_buffer(softpipe->draw, shader, index, data, size);
 278    }
 279
 280    softpipe->mapped_constants[shader][index] = data;
 281    softpipe->const_buffer_size[shader][index] = size;
 282
 283    softpipe->dirty |= SP_NEW_CONSTANTS;
 284 }
 285
 286
 287 void
 288 softpipe_init_shader_funcs(struct pipe_context *pipe)
 289 {
 290    pipe->create_fs_state = softpipe_create_fs_state;
 291    pipe->bind_fs_state   = softpipe_bind_fs_state;
 292    pipe->delete_fs_state = softpipe_delete_fs_state;
 293
 294    pipe->create_vs_state = softpipe_create_vs_state;
 295    pipe->bind_vs_state   = softpipe_bind_vs_state;
 296    pipe->delete_vs_state = softpipe_delete_vs_state;
 297
 298    pipe->create_gs_state = softpipe_create_gs_state;
 299    pipe->bind_gs_state   = softpipe_bind_gs_state;
 300    pipe->delete_gs_state = softpipe_delete_gs_state;
 301
 302    pipe->set_constant_buffer = softpipe_set_constant_buffer;
 303 }