src/gallium/drivers/cell/ppu/cell_state_shader.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 "pipe/p_defines.h"
  29 #include "util/u_memory.h"
  30 #include "util/u_inlines.h"
  31 #include "draw/draw_context.h"
  32 #include "tgsi/tgsi_parse.h"
  33
  34 #include "cell_context.h"
  35 #include "cell_state.h"
  36 #include "cell_gen_fp.h"
  37
  38
  39 /** cast wrapper */
  40 static INLINE struct cell_fragment_shader_state *
  41 cell_fragment_shader_state(void *shader)
  42 {
  43    return (struct cell_fragment_shader_state *) shader;
  44 }
  45
  46
  47 /** cast wrapper */
  48 static INLINE struct cell_vertex_shader_state *
  49 cell_vertex_shader_state(void *shader)
  50 {
  51    return (struct cell_vertex_shader_state *) shader;
  52 }
  53
  54
  55 /**
  56  * Create fragment shader state.
  57  * Called via pipe->create_fs_state()
  58  */
  59 static void *
  60 cell_create_fs_state(struct pipe_context *pipe,
  61                      const struct pipe_shader_state *templ)
  62 {
  63    struct cell_context *cell = cell_context(pipe);
  64    struct cell_fragment_shader_state *cfs;
  65
  66    cfs = CALLOC_STRUCT(cell_fragment_shader_state);
  67    if (!cfs)
  68       return NULL;
  69
  70    cfs->shader.tokens = tgsi_dup_tokens(templ->tokens);
  71    if (!cfs->shader.tokens) {
  72       FREE(cfs);
  73       return NULL;
  74    }
  75
  76    tgsi_scan_shader(templ->tokens, &cfs->info);
  77
  78    cell_gen_fragment_program(cell, cfs->shader.tokens, &cfs->code);
  79
  80    return cfs;
  81 }
  82
  83
  84 /**
  85  * Called via pipe->bind_fs_state()
  86  */
  87 static void
  88 cell_bind_fs_state(struct pipe_context *pipe, void *fs)
  89 {
  90    struct cell_context *cell = cell_context(pipe);
  91
  92    cell->fs = cell_fragment_shader_state(fs);
  93
  94    cell->dirty |= CELL_NEW_FS;
  95 }
  96
  97
  98 /**
  99  * Called via pipe->delete_fs_state()
 100  */
 101 static void
 102 cell_delete_fs_state(struct pipe_context *pipe, void *fs)
 103 {
 104    struct cell_fragment_shader_state *cfs = cell_fragment_shader_state(fs);
 105
 106    spe_release_func(&cfs->code);
 107
 108    FREE((void *) cfs->shader.tokens);
 109    FREE(cfs);
 110 }
 111
 112
 113 /**
 114  * Create vertex shader state.
 115  * Called via pipe->create_vs_state()
 116  */
 117 static void *
 118 cell_create_vs_state(struct pipe_context *pipe,
 119                      const struct pipe_shader_state *templ)
 120 {
 121    struct cell_context *cell = cell_context(pipe);
 122    struct cell_vertex_shader_state *cvs;
 123
 124    cvs = CALLOC_STRUCT(cell_vertex_shader_state);
 125    if (!cvs)
 126       return NULL;
 127
 128    cvs->shader.tokens = tgsi_dup_tokens(templ->tokens);
 129    if (!cvs->shader.tokens) {
 130       FREE(cvs);
 131       return NULL;
 132    }
 133
 134    tgsi_scan_shader(templ->tokens, &cvs->info);
 135
 136    cvs->draw_data = draw_create_vertex_shader(cell->draw, &cvs->shader);
 137    if (cvs->draw_data == NULL) {
 138       FREE( (void *) cvs->shader.tokens );
 139       FREE( cvs );
 140       return NULL;
 141    }
 142
 143    return cvs;
 144 }
 145
 146
 147 /**
 148  * Called via pipe->bind_vs_state()
 149  */
 150 static void
 151 cell_bind_vs_state(struct pipe_context *pipe, void *vs)
 152 {
 153    struct cell_context *cell = cell_context(pipe);
 154
 155    cell->vs = cell_vertex_shader_state(vs);
 156
 157    draw_bind_vertex_shader(cell->draw,
 158                            (cell->vs ? cell->vs->draw_data : NULL));
 159
 160    cell->dirty |= CELL_NEW_VS;
 161 }
 162
 163
 164 /**
 165  * Called via pipe->delete_vs_state()
 166  */
 167 static void
 168 cell_delete_vs_state(struct pipe_context *pipe, void *vs)
 169 {
 170    struct cell_context *cell = cell_context(pipe);
 171    struct cell_vertex_shader_state *cvs = cell_vertex_shader_state(vs);
 172
 173    draw_delete_vertex_shader(cell->draw, cvs->draw_data);
 174    FREE( (void *) cvs->shader.tokens );
 175    FREE( cvs );
 176 }
 177
 178
 179 /**
 180  * Called via pipe->set_constant_buffer()
 181  */
 182 static void
 183 cell_set_constant_buffer(struct pipe_context *pipe,
 184                          uint shader, uint index,
 185                          struct pipe_buffer *buf)
 186 {
 187    struct cell_context *cell = cell_context(pipe);
 188
 189    assert(shader < PIPE_SHADER_TYPES);
 190    assert(index == 0);
 191
 192    draw_flush(cell->draw);
 193
 194    /* note: reference counting */
 195    pipe_buffer_reference(&cell->constants[shader], buf);
 196
 197    if (shader == PIPE_SHADER_VERTEX)
 198       cell->dirty |= CELL_NEW_VS_CONSTANTS;
 199    else if (shader == PIPE_SHADER_FRAGMENT)
 200       cell->dirty |= CELL_NEW_FS_CONSTANTS;
 201 }
 202
 203
 204 void
 205 cell_init_shader_functions(struct cell_context *cell)
 206 {
 207    cell->pipe.create_fs_state = cell_create_fs_state;
 208    cell->pipe.bind_fs_state   = cell_bind_fs_state;
 209    cell->pipe.delete_fs_state = cell_delete_fs_state;
 210
 211    cell->pipe.create_vs_state = cell_create_vs_state;
 212    cell->pipe.bind_vs_state   = cell_bind_vs_state;
 213    cell->pipe.delete_vs_state = cell_delete_vs_state;
 214
 215    cell->pipe.set_constant_buffer = cell_set_constant_buffer;
 216 }