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 "pipe/internal/p_winsys_screen.h"
  35 #include "pipe/p_shader_tokens.h"
  36 #include "draw/draw_context.h"
  37 #include "tgsi/tgsi_dump.h"
  38 #include "tgsi/tgsi_scan.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_llvm( softpipe, templ );
  54    if (!state) {
  55       state = softpipe_create_fs_sse( softpipe, templ );
  56       if (!state) {
  57          state = softpipe_create_fs_exec( softpipe, templ );
  58       }
  59    }
  60
  61    assert(state);
  62
  63    /* get/save the summary info for this shader */
  64    tgsi_scan_shader(templ->tokens, &state->info);
  65
  66    return state;
  67 }
  68
  69
  70 void
  71 softpipe_bind_fs_state(struct pipe_context *pipe, void *fs)
  72 {
  73    struct softpipe_context *softpipe = softpipe_context(pipe);
  74
  75    softpipe->fs = (struct sp_fragment_shader *) fs;
  76
  77    softpipe->dirty |= SP_NEW_FS;
  78 }
  79
  80
  81 void
  82 softpipe_delete_fs_state(struct pipe_context *pipe, void *fs)
  83 {
  84    struct sp_fragment_shader *state = fs;
  85
  86    assert(fs != softpipe_context(pipe)->fs);
  87
  88    state->delete( state );
  89 }
  90
  91
  92 void *
  93 softpipe_create_vs_state(struct pipe_context *pipe,
  94                          const struct pipe_shader_state *templ)
  95 {
  96    struct softpipe_context *softpipe = softpipe_context(pipe);
  97    struct sp_vertex_shader *state;
  98
  99    state = CALLOC_STRUCT(sp_vertex_shader);
 100    if (state == NULL ) {
 101       return NULL;
 102    }
 103
 104    state->draw_data = draw_create_vertex_shader(softpipe->draw, templ);
 105    if (state->draw_data == NULL) {
 106       FREE( state );
 107       return NULL;
 108    }
 109
 110    return state;
 111 }
 112
 113
 114 void
 115 softpipe_bind_vs_state(struct pipe_context *pipe, void *vs)
 116 {
 117    struct softpipe_context *softpipe = softpipe_context(pipe);
 118
 119    softpipe->vs = (const struct sp_vertex_shader *)vs;
 120
 121    draw_bind_vertex_shader(softpipe->draw,
 122                            (softpipe->vs ? softpipe->vs->draw_data : NULL));
 123
 124    softpipe->dirty |= SP_NEW_VS;
 125 }
 126
 127
 128 void
 129 softpipe_delete_vs_state(struct pipe_context *pipe, void *vs)
 130 {
 131    struct softpipe_context *softpipe = softpipe_context(pipe);
 132
 133    struct sp_vertex_shader *state =
 134       (struct sp_vertex_shader *)vs;
 135
 136    draw_delete_vertex_shader(softpipe->draw, state->draw_data);
 137    FREE( state );
 138 }
 139
 140
 141
 142 void
 143 softpipe_set_constant_buffer(struct pipe_context *pipe,
 144                              uint shader, uint index,
 145                              const struct pipe_constant_buffer *buf)
 146 {
 147    struct softpipe_context *softpipe = softpipe_context(pipe);
 148
 149    assert(shader < PIPE_SHADER_TYPES);
 150    assert(index == 0);
 151
 152    /* note: reference counting */
 153    pipe_buffer_reference(&softpipe->constants[shader].buffer,
 154                          buf ? buf->buffer : NULL);
 155
 156    softpipe->dirty |= SP_NEW_CONSTANTS;
 157 }