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