src/gallium/drivers/softpipe/sp_state_fs.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 "tgsi/tgsi_dump.h"
  39 #include "tgsi/tgsi_exec.h"
  40 #include "tgsi/tgsi_scan.h"
  41 #include "tgsi/tgsi_parse.h"
  42
  43
  44 void *
  45 softpipe_create_fs_state(struct pipe_context *pipe,
  46                          const struct pipe_shader_state *templ)
  47 {
  48    struct softpipe_context *softpipe = softpipe_context(pipe);
  49    struct sp_fragment_shader *state;
  50    unsigned i;
  51
  52    /* debug */
  53    if (softpipe->dump_fs)
  54       tgsi_dump(templ->tokens, 0);
  55
  56    /* codegen */
  57    state = softpipe_create_fs_sse( softpipe, templ );
  58    if (!state) {
  59       state = softpipe_create_fs_exec( softpipe, templ );
  60    }
  61
  62    assert(state);
  63
  64    /* get/save the summary info for this shader */
  65    tgsi_scan_shader(templ->tokens, &state->info);
  66
  67    for (i = 0; i < state->info.num_properties; ++i) {
  68       if (state->info.properties[i].name == TGSI_PROPERTY_FS_COORD_ORIGIN)
  69          state->origin_lower_left = state->info.properties[i].data[0];
  70       else if (state->info.properties[i].name == TGSI_PROPERTY_FS_COORD_PIXEL_CENTER)
  71          state->pixel_center_integer = state->info.properties[i].data[0];
  72    }
  73
  74    return state;
  75 }
  76
  77
  78 void
  79 softpipe_bind_fs_state(struct pipe_context *pipe, void *fs)
  80 {
  81    struct softpipe_context *softpipe = softpipe_context(pipe);
  82
  83    draw_flush(softpipe->draw);
  84
  85    if (softpipe->fs == fs)
  86       return;
  87
  88    draw_flush(softpipe->draw);
  89
  90    softpipe->fs = fs;
  91
  92    softpipe->dirty |= SP_NEW_FS;
  93 }
  94
  95
  96 void
  97 softpipe_delete_fs_state(struct pipe_context *pipe, void *fs)
  98 {
  99    struct softpipe_context *softpipe = softpipe_context(pipe);
 100    struct sp_fragment_shader *state = fs;
 101
 102    assert(fs != softpipe_context(pipe)->fs);
 103
 104    if (softpipe->fs_machine->Tokens == state->shader.tokens) {
 105       /* unbind the shader from the tgsi executor if we're
 106        * deleting it.
 107        */
 108       tgsi_exec_machine_bind_shader(softpipe->fs_machine, NULL, 0, NULL);
 109    }
 110
 111    state->delete( state );
 112 }
 113
 114
 115 void *
 116 softpipe_create_vs_state(struct pipe_context *pipe,
 117                          const struct pipe_shader_state *templ)
 118 {
 119    struct softpipe_context *softpipe = softpipe_context(pipe);
 120    struct sp_vertex_shader *state;
 121
 122    state = CALLOC_STRUCT(sp_vertex_shader);
 123    if (state == NULL )
 124       goto fail;
 125
 126    /* copy shader tokens, the ones passed in will go away.
 127     */
 128    state->shader.tokens = tgsi_dup_tokens(templ->tokens);
 129    if (state->shader.tokens == NULL)
 130       goto fail;
 131
 132    state->draw_data = draw_create_vertex_shader(softpipe->draw, templ);
 133    if (state->draw_data == NULL)
 134       goto fail;
 135
 136    state->max_sampler = state->draw_data->info.file_max[TGSI_FILE_SAMPLER];
 137
 138    return state;
 139
 140 fail:
 141    if (state) {
 142       FREE( (void *)state->shader.tokens );
 143       FREE( state->draw_data );
 144       FREE( state );
 145    }
 146    return NULL;
 147 }
 148
 149
 150 void
 151 softpipe_bind_vs_state(struct pipe_context *pipe, void *vs)
 152 {
 153    struct softpipe_context *softpipe = softpipe_context(pipe);
 154
 155    softpipe->vs = (struct sp_vertex_shader *) vs;
 156
 157    draw_bind_vertex_shader(softpipe->draw,
 158                            (softpipe->vs ? softpipe->vs->draw_data : NULL));
 159
 160    softpipe->dirty |= SP_NEW_VS;
 161 }
 162
 163
 164 void
 165 softpipe_delete_vs_state(struct pipe_context *pipe, void *vs)
 166 {
 167    struct softpipe_context *softpipe = softpipe_context(pipe);
 168
 169    struct sp_vertex_shader *state = (struct sp_vertex_shader *) vs;
 170
 171    draw_delete_vertex_shader(softpipe->draw, state->draw_data);
 172    FREE( (void *)state->shader.tokens );
 173    FREE( state );
 174 }
 175
 176 void
 177 softpipe_set_constant_buffer(struct pipe_context *pipe,
 178                              uint shader, uint index,
 179                              struct pipe_resource *constants)
 180 {
 181    struct softpipe_context *softpipe = softpipe_context(pipe);
 182    unsigned size = constants ? constants->width0 : 0;
 183    const void *data = constants ? softpipe_resource(constants)->data : NULL;
 184
 185    assert(shader < PIPE_SHADER_TYPES);
 186    assert(index == 0);
 187
 188    draw_flush(softpipe->draw);
 189
 190    /* note: reference counting */
 191    pipe_resource_reference(&softpipe->constants[shader][index], constants);
 192
 193    if (shader == PIPE_SHADER_VERTEX || shader == PIPE_SHADER_GEOMETRY) {
 194       draw_set_mapped_constant_buffer(softpipe->draw, shader, index, data, size);
 195    }
 196
 197    softpipe->mapped_constants[shader][index] = data;
 198    softpipe->dirty |= SP_NEW_CONSTANTS;
 199 }
 200
 201
 202 void *
 203 softpipe_create_gs_state(struct pipe_context *pipe,
 204                          const struct pipe_shader_state *templ)
 205 {
 206    struct softpipe_context *softpipe = softpipe_context(pipe);
 207    struct sp_geometry_shader *state;
 208
 209    state = CALLOC_STRUCT(sp_geometry_shader);
 210    if (state == NULL )
 211       goto fail;
 212
 213    /* debug */
 214    if (softpipe->dump_gs)
 215       tgsi_dump(templ->tokens, 0);
 216
 217    /* copy shader tokens, the ones passed in will go away.
 218     */
 219    state->shader.tokens = tgsi_dup_tokens(templ->tokens);
 220    if (state->shader.tokens == NULL)
 221       goto fail;
 222
 223    state->draw_data = draw_create_geometry_shader(softpipe->draw, templ);
 224    if (state->draw_data == NULL)
 225       goto fail;
 226
 227    return state;
 228
 229 fail:
 230    if (state) {
 231       FREE( (void *)state->shader.tokens );
 232       FREE( state->draw_data );
 233       FREE( state );
 234    }
 235    return NULL;
 236 }
 237
 238
 239 void
 240 softpipe_bind_gs_state(struct pipe_context *pipe, void *gs)
 241 {
 242    struct softpipe_context *softpipe = softpipe_context(pipe);
 243
 244    softpipe->gs = (struct sp_geometry_shader *)gs;
 245
 246    draw_bind_geometry_shader(softpipe->draw,
 247                              (softpipe->gs ? softpipe->gs->draw_data : NULL));
 248
 249    softpipe->dirty |= SP_NEW_GS;
 250 }
 251
 252
 253 void
 254 softpipe_delete_gs_state(struct pipe_context *pipe, void *gs)
 255 {
 256    struct softpipe_context *softpipe = softpipe_context(pipe);
 257
 258    struct sp_geometry_shader *state =
 259       (struct sp_geometry_shader *)gs;
 260
 261    draw_delete_geometry_shader(softpipe->draw,
 262                                (state) ? state->draw_data : 0);
 263    FREE(state);
 264 }