diff options
| author | Michal Krol <mjkrol@gmail.org> | 2006-03-14 11:23:16 +0000 |
|---|---|---|
| committer | Michal Krol <mjkrol@gmail.org> | 2006-03-14 11:23:16 +0000 |
| commit | 8af48fc4d62798dbcc00bcfbbd8bc8f3b47982c7 (patch) | |
| tree | d663fe97399b7564f5f8e21b6a3f695c004babc8 /src/mesa/shader/slang/slang_analyse.c | |
| parent | e9484e40858ffd4474571b27136e7ea0f2b682db (diff) | |
More GLSL code:
- add texture sampling support;
- fix assembly codegen bugs;
Diffstat (limited to 'src/mesa/shader/slang/slang_analyse.c')
| -rw-r--r-- | src/mesa/shader/slang/slang_analyse.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/mesa/shader/slang/slang_analyse.c b/src/mesa/shader/slang/slang_analyse.c new file mode 100644 index 0000000000..164dbec350 --- /dev/null +++ b/src/mesa/shader/slang/slang_analyse.c @@ -0,0 +1,100 @@ +/*
+ * Mesa 3-D graphics library
+ * Version: 6.5
+ *
+ * Copyright (C) 2006 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/**
+ * \file slang_analyse.c
+ * slang assembly code analysis
+ * \author Michal Krol
+ */
+
+#include "imports.h"
+#include "slang_analyse.h"
+#include "slang_utility.h"
+
+GLboolean _slang_analyse_texture_usage (slang_program *prog)
+{
+ GLuint i, count = 0;
+
+ slang_texture_usages_dtr (&prog->texture_usage);
+ slang_texture_usages_ctr (&prog->texture_usage);
+
+ /*
+ * We could do a full code analysis to find out which uniforms are actually used.
+ * For now, we are very conservative and extract them from uniform binding table, which
+ * in turn also do not come from code analysis.
+ */
+
+ for (i = 0; i < prog->uniforms.count; i++)
+ {
+ slang_uniform_binding *b = &prog->uniforms.table[i];
+
+ if (b->address[SLANG_SHADER_FRAGMENT] != ~0 && b->quant->structure == NULL)
+ {
+ switch (b->quant->u.basic_type)
+ {
+ case GL_SAMPLER_1D_ARB:
+ case GL_SAMPLER_2D_ARB:
+ case GL_SAMPLER_3D_ARB:
+ case GL_SAMPLER_CUBE_ARB:
+ case GL_SAMPLER_1D_SHADOW_ARB:
+ case GL_SAMPLER_2D_SHADOW_ARB:
+ count++;
+ break;
+ }
+ }
+ }
+
+ if (count == 0)
+ return GL_TRUE;
+ prog->texture_usage.table = (slang_texture_usage *) slang_alloc_malloc (
+ count * sizeof (slang_texture_usage));
+ if (prog->texture_usage.table == NULL)
+ return GL_FALSE;
+ prog->texture_usage.count = count;
+
+ for (count = i = 0; i < prog->uniforms.count; i++)
+ {
+ slang_uniform_binding *b = &prog->uniforms.table[i];
+
+ if (b->address[SLANG_SHADER_FRAGMENT] != ~0 && b->quant->structure == NULL)
+ {
+ switch (b->quant->u.basic_type)
+ {
+ case GL_SAMPLER_1D_ARB:
+ case GL_SAMPLER_2D_ARB:
+ case GL_SAMPLER_3D_ARB:
+ case GL_SAMPLER_CUBE_ARB:
+ case GL_SAMPLER_1D_SHADOW_ARB:
+ case GL_SAMPLER_2D_SHADOW_ARB:
+ prog->texture_usage.table[count].quant = b->quant;
+ prog->texture_usage.table[count].frag_address = b->address[SLANG_SHADER_FRAGMENT];
+ count++;
+ break;
+ }
+ }
+ }
+
+ return GL_TRUE;
+}
+
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