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
  32 #include "pipe/p_defines.h"
  33 #include "util/u_memory.h"
  34 #include "draw/draw_context.h"
  35 #include "draw/draw_vs.h"
  36 #include "tgsi/tgsi_dump.h"
  37 #include "tgsi/tgsi_scan.h"
  38 #include "tgsi/tgsi_parse.h"
  39
  40
  41 void *
  42 softpipe_create_fs_state(struct pipe_context *pipe,
  43                          const struct pipe_shader_state *templ)
  44 {
  45    struct softpipe_context *softpipe = softpipe_context(pipe);
  46    struct sp_fragment_shader *state;
  47
  48    /* debug */
  49    if (softpipe->dump_fs)
  50       tgsi_dump(templ->tokens, 0);
  51
  52    /* codegen */
  53    state = softpipe_create_fs_sse( softpipe, templ );
  54    if (!state) {
  55       state = softpipe_create_fs_exec( softpipe, templ );
  56    }
  57
  58    assert(state);
  59
  60    /* get/save the summary info for this shader */
  61    tgsi_scan_shader(templ->tokens, &state->info);
  62
  63    return state;
  64 }
  65
  66
  67 void
  68 softpipe_bind_fs_state(struct pipe_context *pipe, void *fs)
  69 {
  70    struct softpipe_context *softpipe = softpipe_context(pipe);
  71
  72    softpipe->fs = (struct sp_fragment_shader *) fs;
  73
  74    softpipe->dirty |= SP_NEW_FS;
  75 }
  76
  77
  78 void
  79 softpipe_delete_fs_state(struct pipe_context *pipe, void *fs)
  80 {
  81    struct sp_fragment_shader *state = fs;
  82
  83    assert(fs != softpipe_context(pipe)->fs);
  84
  85    state->delete( state );
  86 }
  87
  88
  89 void *
  90 softpipe_create_vs_state(struct pipe_context *pipe,
  91                          const struct pipe_shader_state *templ)
  92 {
  93    struct softpipe_context *softpipe = softpipe_context(pipe);
  94    struct sp_vertex_shader *state;
  95
  96    state = CALLOC_STRUCT(sp_vertex_shader);
  97    if (state == NULL )
  98       goto fail;
  99
 100    /* copy shader tokens, the ones passed in will go away.
 101     */
 102    state->shader.tokens = tgsi_dup_tokens(templ->tokens);
 103    if (state->shader.tokens == NULL)
 104       goto fail;
 105
 106    state->draw_data = draw_create_vertex_shader(softpipe->draw, templ);
 107    if (state->draw_data == NULL)
 108       goto fail;
 109
 110    state->max_sampler = state->draw_data->info.file_max[TGSI_FILE_SAMPLER];
 111
 112    return state;
 113
 114 fail:
 115    if (state) {
 116       FREE( (void *)state->shader.tokens );
 117       FREE( state->draw_data );
 118       FREE( state );
 119    }
 120    return NULL;
 121 }
 122
 123
 124 void
 125 softpipe_bind_vs_state(struct pipe_context *pipe, void *vs)
 126 {
 127    struct softpipe_context *softpipe = softpipe_context(pipe);
 128
 129    softpipe->vs = (struct sp_vertex_shader *) vs;
 130
 131    draw_bind_vertex_shader(softpipe->draw,
 132                            (softpipe->vs ? softpipe->vs->draw_data : NULL));
 133
 134    softpipe->dirty |= SP_NEW_VS;
 135 }
 136
 137
 138 void
 139 softpipe_delete_vs_state(struct pipe_context *pipe, void *vs)
 140 {
 141    struct softpipe_context *softpipe = softpipe_context(pipe);
 142
 143    struct sp_vertex_shader *state = (struct sp_vertex_shader *) vs;
 144
 145    draw_delete_vertex_shader(softpipe->draw, state->draw_data);
 146    FREE( state );
 147 }
 148
 149
 150
 151 void
 152 softpipe_set_constant_buffer(struct pipe_context *pipe,
 153                              uint shader, uint index,
 154                              const struct pipe_constant_buffer *buf)
 155 {
 156    struct softpipe_context *softpipe = softpipe_context(pipe);
 157
 158    assert(shader < PIPE_SHADER_TYPES);
 159    assert(index == 0);
 160
 161    /* note: reference counting */
 162    pipe_buffer_reference(&softpipe->constants[shader].buffer,
 163                          buf ? buf->buffer : NULL);
 164
 165    softpipe->dirty |= SP_NEW_CONSTANTS;
 166 }