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
  32 #include "svga_screen.h"
  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_screen *svgascreen = svga_screen(pipe->screen);
  50    struct svga_fragment_shader *fs;
  51
  52    fs = CALLOC_STRUCT(svga_fragment_shader);
  53    if (!fs)
  54       return NULL;
  55
  56    fs->base.tokens = tgsi_dup_tokens(templ->tokens);
  57
  58    /* Collect basic info that we'll need later:
  59     */
  60    tgsi_scan_shader(fs->base.tokens, &fs->base.info);
  61
  62    fs->base.id = svga->debug.shader_id++;
  63    fs->base.use_sm30 = svgascreen->use_ps30;
  64
  65    if (SVGA_DEBUG & DEBUG_TGSI || 0) {
  66       debug_printf("%s id: %u, inputs: %u, outputs: %u\n",
  67                    __FUNCTION__, fs->base.id,
  68                    fs->base.info.num_inputs, fs->base.info.num_outputs);
  69    }
  70
  71    return fs;
  72 }
  73
  74 static void
  75 svga_bind_fs_state(struct pipe_context *pipe, void *shader)
  76 {
  77    struct svga_fragment_shader *fs = (struct svga_fragment_shader *) shader;
  78    struct svga_context *svga = svga_context(pipe);
  79
  80    svga->curr.fs = fs;
  81    svga->dirty |= SVGA_NEW_FS;
  82 }
  83
  84 static
  85 void svga_delete_fs_state(struct pipe_context *pipe, void *shader)
  86 {
  87    struct svga_context *svga = svga_context(pipe);
  88    struct svga_fragment_shader *fs = (struct svga_fragment_shader *) shader;
  89    struct svga_shader_result *result, *tmp;
  90    enum pipe_error ret;
  91
  92    svga_hwtnl_flush_retry( svga );
  93
  94    for (result = fs->base.results; result; result = tmp ) {
  95       tmp = result->next;
  96
  97       ret = SVGA3D_DestroyShader(svga->swc,
  98                                  result->id,
  99                                  SVGA3D_SHADERTYPE_PS );
 100       if(ret != PIPE_OK) {
 101          svga_context_flush(svga, NULL);
 102          ret = SVGA3D_DestroyShader(svga->swc,
 103                                     result->id,
 104                                     SVGA3D_SHADERTYPE_PS );
 105          assert(ret == PIPE_OK);
 106       }
 107
 108       util_bitmask_clear( svga->fs_bm, result->id );
 109
 110       svga_destroy_shader_result( result );
 111
 112       /*
 113        * Remove stale references to this result to ensure a new result on the
 114        * same address will be detected as a change.
 115        */
 116       if(result == svga->state.hw_draw.fs)
 117          svga->state.hw_draw.fs = NULL;
 118    }
 119
 120    FREE((void *)fs->base.tokens);
 121    FREE(fs);
 122 }
 123
 124
 125 void svga_init_fs_functions( struct svga_context *svga )
 126 {
 127    svga->pipe.create_fs_state = svga_create_fs_state;
 128    svga->pipe.bind_fs_state = svga_bind_fs_state;
 129    svga->pipe.delete_fs_state = svga_delete_fs_state;
 130 }
 131