src/gallium/drivers/svga/svga_pipe_fs.c

   1 /**********************************************************
   2  * Copyright 2008-2009 VMware, Inc.  All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person
   5  * obtaining a copy of this software and associated documentation
   6  * files (the "Software"), to deal in the Software without
   7  * restriction, including without limitation the rights to use, copy,
   8  * modify, merge, publish, distribute, sublicense, and/or sell copies
   9  * of the Software, and to permit persons to whom the Software is
  10  * furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be
  13  * included in all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  **********************************************************/
  25
  26 #include "util/u_inlines.h"
  27 #include "util/u_math.h"
  28 #include "util/u_memory.h"
  29 #include "util/u_bitmask.h"
  30 #include "tgsi/tgsi_parse.h"
  31 #include "draw/draw_context.h"
  32
  33 #include "svga_context.h"
  34 #include "svga_tgsi.h"
  35 #include "svga_hw_reg.h"
  36 #include "svga_cmd.h"
  37 #include "svga_debug.h"
  38
  39
  40 /***********************************************************************
  41  * Fragment shaders
  42  */
  43
  44 static void *
  45 svga_create_fs_state(struct pipe_context *pipe,
  46                      const struct pipe_shader_state *templ)
  47 {
  48    struct svga_context *svga = svga_context(pipe);
  49    struct svga_fragment_shader *fs;
  50
  51    fs = CALLOC_STRUCT(svga_fragment_shader);
  52    if (!fs)
  53       return NULL;
  54
  55    fs->base.tokens = tgsi_dup_tokens(templ->tokens);
  56
  57    /* Collect basic info that we'll need later:
  58     */
  59    tgsi_scan_shader(fs->base.tokens, &fs->base.info);
  60
  61    fs->base.id = svga->debug.shader_id++;
  62
  63    fs->generic_inputs = svga_get_generic_inputs_mask(&fs->base.info);
  64
  65    svga_remap_generics(fs->generic_inputs, fs->generic_remap_table);
  66
  67    fs->draw_shader = draw_create_fragment_shader(svga->swtnl.draw, templ);
  68
  69    if (SVGA_DEBUG & DEBUG_TGSI || 0) {
  70       debug_printf("%s id: %u, inputs: %u, outputs: %u\n",
  71                    __FUNCTION__, fs->base.id,
  72                    fs->base.info.num_inputs, fs->base.info.num_outputs);
  73    }
  74
  75    return fs;
  76 }
  77
  78 static void
  79 svga_bind_fs_state(struct pipe_context *pipe, void *shader)
  80 {
  81    struct svga_fragment_shader *fs = (struct svga_fragment_shader *) shader;
  82    struct svga_context *svga = svga_context(pipe);
  83
  84    svga->curr.fs = fs;
  85    svga->dirty |= SVGA_NEW_FS;
  86 }
  87
  88 static
  89 void svga_delete_fs_state(struct pipe_context *pipe, void *shader)
  90 {
  91    struct svga_context *svga = svga_context(pipe);
  92    struct svga_fragment_shader *fs = (struct svga_fragment_shader *) shader;
  93    struct svga_shader_result *result, *tmp;
  94    enum pipe_error ret;
  95
  96    svga_hwtnl_flush_retry( svga );
  97
  98    draw_delete_fragment_shader(svga->swtnl.draw, fs->draw_shader);
  99
 100    for (result = fs->base.results; result; result = tmp ) {
 101       tmp = result->next;
 102
 103       ret = SVGA3D_DestroyShader(svga->swc,
 104                                  result->id,
 105                                  SVGA3D_SHADERTYPE_PS );
 106       if(ret != PIPE_OK) {
 107          svga_context_flush(svga, NULL);
 108          ret = SVGA3D_DestroyShader(svga->swc,
 109                                     result->id,
 110                                     SVGA3D_SHADERTYPE_PS );
 111          assert(ret == PIPE_OK);
 112       }
 113
 114       util_bitmask_clear( svga->fs_bm, result->id );
 115
 116       svga_destroy_shader_result( result );
 117
 118       /*
 119        * Remove stale references to this result to ensure a new result on the
 120        * same address will be detected as a change.
 121        */
 122       if(result == svga->state.hw_draw.fs)
 123          svga->state.hw_draw.fs = NULL;
 124    }
 125
 126    FREE((void *)fs->base.tokens);
 127    FREE(fs);
 128 }
 129
 130
 131 void svga_init_fs_functions( struct svga_context *svga )
 132 {
 133    svga->pipe.create_fs_state = svga_create_fs_state;
 134    svga->pipe.bind_fs_state = svga_bind_fs_state;
 135    svga->pipe.delete_fs_state = svga_delete_fs_state;
 136 }
 137