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/p_inlines.h"
  35 #include "pipe/internal/p_winsys_screen.h"
  36 #include "pipe/p_shader_tokens.h"
  37 #include "draw/draw_context.h"
  38 #include "tgsi/tgsi_dump.h"
  39 #include "tgsi/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 sp_fragment_shader *state = fs;
  86
  87    assert(fs != softpipe_context(pipe)->fs);
  88
  89    state->delete( state );
  90 }
  91
  92
  93 void *
  94 softpipe_create_vs_state(struct pipe_context *pipe,
  95                          const struct pipe_shader_state *templ)
  96 {
  97    struct softpipe_context *softpipe = softpipe_context(pipe);
  98    struct sp_vertex_shader *state;
  99
 100    state = CALLOC_STRUCT(sp_vertex_shader);
 101    if (state == NULL ) {
 102       return NULL;
 103    }
 104
 105    state->draw_data = draw_create_vertex_shader(softpipe->draw, templ);
 106    if (state->draw_data == NULL) {
 107       FREE( state );
 108       return NULL;
 109    }
 110
 111    return state;
 112 }
 113
 114
 115 void
 116 softpipe_bind_vs_state(struct pipe_context *pipe, void *vs)
 117 {
 118    struct softpipe_context *softpipe = softpipe_context(pipe);
 119
 120    softpipe->vs = (const struct sp_vertex_shader *)vs;
 121
 122    draw_bind_vertex_shader(softpipe->draw,
 123                            (softpipe->vs ? softpipe->vs->draw_data : NULL));
 124
 125    softpipe->dirty |= SP_NEW_VS;
 126 }
 127
 128
 129 void
 130 softpipe_delete_vs_state(struct pipe_context *pipe, void *vs)
 131 {
 132    struct softpipe_context *softpipe = softpipe_context(pipe);
 133
 134    struct sp_vertex_shader *state =
 135       (struct sp_vertex_shader *)vs;
 136
 137    draw_delete_vertex_shader(softpipe->draw, state->draw_data);
 138    FREE( state );
 139 }
 140
 141
 142
 143 void
 144 softpipe_set_constant_buffer(struct pipe_context *pipe,
 145                              uint shader, uint index,
 146                              const struct pipe_constant_buffer *buf)
 147 {
 148    struct softpipe_context *softpipe = softpipe_context(pipe);
 149    struct pipe_screen *screen = pipe->screen;
 150
 151    assert(shader < PIPE_SHADER_TYPES);
 152    assert(index == 0);
 153
 154    /* note: reference counting */
 155    pipe_buffer_reference(screen,
 156                          &softpipe->constants[shader].buffer,
 157                          buf ? buf->buffer : NULL);
 158
 159    softpipe->dirty |= SP_NEW_CONSTANTS;
 160 }