[Mesa-dev] [PATCH 2/3] glsl: Add compiler support for ARB_shader_texture_lod.
Kenneth Graunke
kenneth at whitecape.org
Fri Apr 22 12:02:24 PDT 2011
Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
---
.../builtins/profiles/ARB_shader_texture_lod.frag | 64 ++++++++++++++++++++
.../builtins/profiles/ARB_shader_texture_lod.vert | 46 ++++++++++++++
src/glsl/builtins/tools/texture_builtins.py | 64 ++++++++++++++++++++
src/glsl/glcpp/glcpp-parse.y | 4 +
src/glsl/glsl_parser_extras.cpp | 8 +++
src/glsl/glsl_parser_extras.h | 2 +
6 files changed, 188 insertions(+), 0 deletions(-)
create mode 100644 src/glsl/builtins/profiles/ARB_shader_texture_lod.frag
create mode 100644 src/glsl/builtins/profiles/ARB_shader_texture_lod.vert
diff --git a/src/glsl/builtins/profiles/ARB_shader_texture_lod.frag b/src/glsl/builtins/profiles/ARB_shader_texture_lod.frag
new file mode 100644
index 0000000..fefd707
--- /dev/null
+++ b/src/glsl/builtins/profiles/ARB_shader_texture_lod.frag
@@ -0,0 +1,64 @@
+/*
+ * The existing isotropic vertex texture functions are added to the
+ * built-in functions for fragment shaders.
+ */
+vec4 texture1DLod (sampler1D sampler, float coord, float lod);
+vec4 texture1DProjLod(sampler1D sampler, vec2 coord, float lod);
+vec4 texture1DProjLod(sampler1D sampler, vec4 coord, float lod);
+vec4 texture2DLod (sampler2D sampler, vec2 coord, float lod);
+vec4 texture2DProjLod(sampler2D sampler, vec3 coord, float lod);
+vec4 texture2DProjLod(sampler2D sampler, vec4 coord, float lod);
+vec4 texture3DLod (sampler3D sampler, vec3 coord, float lod);
+vec4 texture3DProjLod(sampler3D sampler, vec4 coord, float lod);
+vec4 textureCubeLod (sampler3D sampler, vec3 coord, float lod);
+vec4 shadow1DLod (sampler1DShadow sampler, vec3 coord, float lod);
+vec4 shadow2DLod (sampler2DShadow sampler, vec3 coord, float lod);
+vec4 shadow1DProjLod(sampler1DShadow sampler, vec4 coord, float lod);
+vec4 shadow2DProjLod(sampler2DShadow sampler, vec4 coord, float lod);
+
+/* New anisotropic texture functions, providing explicit derivatives: */
+vec4 texture1DGradARB (sampler1D sampler,
+ float P, float dPdx, float dPdy);
+vec4 texture1DProjGradARB (sampler1D sampler,
+ vec2 P, float dPdx, float dPdy);
+vec4 texture1DProjGradARB (sampler1D sampler,
+ vec4 P, float dPdx, float dPdy);
+
+vec4 texture2DGradARB (sampler2D sampler,
+ vec2 P, vec2 dPdx, vec2 dPdy);
+vec4 texture2DProjGradARB (sampler2D sampler,
+ vec3 P, vec2 dPdx, vec2 dPdy);
+vec4 texture2DProjGradARB (sampler2D sampler,
+ vec4 P, vec2 dPdx, vec2 dPdy);
+
+vec4 texture3DGradARB (sampler3D sampler,
+ vec3 P, vec3 dPdx, vec3 dPdy);
+vec4 texture3DProjGradARB (sampler3D sampler,
+ vec4 P, vec3 dPdx, vec3 dPdy);
+
+vec4 textureCubeGradARB (samplerCube sampler,
+ vec3 P, vec3 dPdx, vec3 dPdy);
+
+vec4 shadow1DGradARB (sampler1DShadow sampler,
+ vec3 P, float dPdx, float dPdy);
+vec4 shadow1DProjGradARB (sampler1DShadow sampler,
+ vec4 P, float dPdx, float dPdy);
+
+vec4 shadow2DGradARB (sampler2DShadow sampler,
+ vec3 P, vec2 dPdx, vec2 dPdy);
+vec4 shadow2DProjGradARB (sampler2DShadow sampler,
+ vec4 P, vec2 dPdx, vec2 dPdy);
+
+#ifdef GL_ARB_texture_rectangle
+vec4 texture2DRectGradARB (sampler2DRect sampler,
+ vec2 P, vec2 dPdx, vec2 dPdy);
+vec4 texture2DRectProjGradARB(sampler2DRect sampler,
+ vec3 P, vec2 dPdx, vec2 dPdy);
+vec4 texture2DRectProjGradARB(sampler2DRect sampler,
+ vec4 P, vec2 dPdx, vec2 dPdy);
+
+vec4 shadow2DRectGradARB (sampler2DRectShadow sampler,
+ vec3 P, vec2 dPdx, vec2 dPdy);
+vec4 shadow2DRectProjGradARB (sampler2DRectShadow sampler,
+ vec4 P, vec2 dPdx, vec2 dPdy);
+#endif
diff --git a/src/glsl/builtins/profiles/ARB_shader_texture_lod.vert b/src/glsl/builtins/profiles/ARB_shader_texture_lod.vert
new file mode 100644
index 0000000..edfed26
--- /dev/null
+++ b/src/glsl/builtins/profiles/ARB_shader_texture_lod.vert
@@ -0,0 +1,46 @@
+/* New anisotropic texture functions, providing explicit derivatives: */
+vec4 texture1DGradARB (sampler1D sampler,
+ float P, float dPdx, float dPdy);
+vec4 texture1DProjGradARB (sampler1D sampler,
+ vec2 P, float dPdx, float dPdy);
+vec4 texture1DProjGradARB (sampler1D sampler,
+ vec4 P, float dPdx, float dPdy);
+
+vec4 texture2DGradARB (sampler2D sampler,
+ vec2 P, vec2 dPdx, vec2 dPdy);
+vec4 texture2DProjGradARB (sampler2D sampler,
+ vec3 P, vec2 dPdx, vec2 dPdy);
+vec4 texture2DProjGradARB (sampler2D sampler,
+ vec4 P, vec2 dPdx, vec2 dPdy);
+
+vec4 texture3DGradARB (sampler3D sampler,
+ vec3 P, vec3 dPdx, vec3 dPdy);
+vec4 texture3DProjGradARB (sampler3D sampler,
+ vec4 P, vec3 dPdx, vec3 dPdy);
+
+vec4 textureCubeGradARB (samplerCube sampler,
+ vec3 P, vec3 dPdx, vec3 dPdy);
+
+vec4 shadow1DGradARB (sampler1DShadow sampler,
+ vec3 P, float dPdx, float dPdy);
+vec4 shadow1DProjGradARB (sampler1DShadow sampler,
+ vec4 P, float dPdx, float dPdy);
+
+vec4 shadow2DGradARB (sampler2DShadow sampler,
+ vec3 P, vec2 dPdx, vec2 dPdy);
+vec4 shadow2DProjGradARB (sampler2DShadow sampler,
+ vec4 P, vec2 dPdx, vec2 dPdy);
+
+#ifdef GL_ARB_texture_rectangle
+vec4 texture2DRectGradARB (sampler2DRect sampler,
+ vec2 P, vec2 dPdx, vec2 dPdy);
+vec4 texture2DRectProjGradARB(sampler2DRect sampler,
+ vec3 P, vec2 dPdx, vec2 dPdy);
+vec4 texture2DRectProjGradARB(sampler2DRect sampler,
+ vec4 P, vec2 dPdx, vec2 dPdy);
+
+vec4 shadow2DRectGradARB (sampler2DRectShadow sampler,
+ vec3 P, vec2 dPdx, vec2 dPdy);
+vec4 shadow2DRectProjGradARB (sampler2DRectShadow sampler,
+ vec4 P, vec2 dPdx, vec2 dPdy);
+#endif
diff --git a/src/glsl/builtins/tools/texture_builtins.py b/src/glsl/builtins/tools/texture_builtins.py
index 2fbe790..a4054ca 100755
--- a/src/glsl/builtins/tools/texture_builtins.py
+++ b/src/glsl/builtins/tools/texture_builtins.py
@@ -369,6 +369,70 @@ def generate_texture_functions(fs):
generate_sigs("", "tex", "2DArrayShadow")
end_function(fs, "shadow2DArray")
+ # ARB_shader_texture_lod extension
+ start_function("texture1DGradARB")
+ generate_fiu_sigs("txd", "1D")
+ end_function(fs, "texture1DGradARB")
+
+ start_function("texture2DGradARB")
+ generate_fiu_sigs("txd", "2D")
+ end_function(fs, "texture2DGradARB")
+
+ start_function("texture3DGradARB")
+ generate_fiu_sigs("txd", "3D")
+ end_function(fs, "texture3DGradARB")
+
+ start_function("textureCubeGradARB")
+ generate_fiu_sigs("txd", "Cube")
+ end_function(fs, "textureCubeGradARB")
+
+ start_function("texture1DProjGradARB")
+ generate_fiu_sigs("txd", "1D", True)
+ generate_fiu_sigs("txd", "1D", True, 2)
+ end_function(fs, "texture1DProjGradARB")
+
+ start_function("texture2DProjGradARB")
+ generate_fiu_sigs("txd", "2D", True)
+ generate_fiu_sigs("txd", "2D", True, 1)
+ end_function(fs, "texture2DProjGradARB")
+
+ start_function("texture3DProjGradARB")
+ generate_fiu_sigs("txd", "3D", True)
+ end_function(fs, "texture3DProjGradARB")
+
+ start_function("shadow1DGradARB")
+ generate_sigs("", "txd", "1DShadow", False, 1)
+ end_function(fs, "shadow1DGradARB")
+
+ start_function("shadow1DProjGradARB")
+ generate_sigs("", "txd", "1DShadow", True, 1)
+ end_function(fs, "shadow1DProjGradARB")
+
+ start_function("shadow2DGradARB")
+ generate_sigs("", "txd", "2DShadow", False)
+ end_function(fs, "shadow2DGradARB")
+
+ start_function("shadow2DProjGradARB")
+ generate_sigs("", "txd", "2DShadow", True)
+ end_function(fs, "shadow2DProjGradARB")
+
+ start_function("texture2DRectGradARB")
+ generate_sigs("", "txd", "2DRect")
+ end_function(fs, "texture2DRectGradARB")
+
+ start_function("texture2DRectProjGradARB")
+ generate_sigs("", "txd", "2DRect", True)
+ generate_sigs("", "txd", "2DRect", True, 1)
+ end_function(fs, "texture2DRectProjGradARB")
+
+ start_function("shadow2DRectGradARB")
+ generate_sigs("", "txd", "2DRectShadow", False)
+ end_function(fs, "shadow2DRectGradARB")
+
+ start_function("shadow2DRectProjGradARB")
+ generate_sigs("", "txd", "2DRectShadow", True)
+ end_function(fs, "shadow2DRectProjGradARB")
+
# Deprecated (110/120 style) functions with silly names:
start_function("texture1D")
generate_sigs("", "tex", "1D")
diff --git a/src/glsl/glcpp/glcpp-parse.y b/src/glsl/glcpp/glcpp-parse.y
index 6f15e85..0a35e88 100644
--- a/src/glsl/glcpp/glcpp-parse.y
+++ b/src/glsl/glcpp/glcpp-parse.y
@@ -1128,6 +1128,10 @@ glcpp_parser_create (const struct gl_extensions *extensions, int api)
if (extensions->ARB_explicit_attrib_location)
add_builtin_define(parser, "GL_ARB_explicit_attrib_location", 1);
+
+ if (extensions->ARB_shader_texture_lod)
+ add_builtin_define(parser, "GL_ARB_shader_texture_lod", 1);
+
if (extensions->AMD_conservative_depth)
add_builtin_define(parser, "GL_AMD_conservative_depth", 1);
}
diff --git a/src/glsl/glsl_parser_extras.cpp b/src/glsl/glsl_parser_extras.cpp
index 5bb3a6f..e95e595 100644
--- a/src/glsl/glsl_parser_extras.cpp
+++ b/src/glsl/glsl_parser_extras.cpp
@@ -240,6 +240,14 @@ _mesa_glsl_process_extension(const char *name, YYLTYPE *name_locp,
state->EXT_texture_array_warn = (ext_mode == extension_warn);
unsupported = !state->extensions->EXT_texture_array;
+ } else if (strcmp(name, "GL_ARB_shader_texture_lod") == 0) {
+ /* Force ARB_texture_rectangle to be on so sampler2DRects are defined */
+ state->ARB_texture_rectangle_enable = true;
+
+ state->ARB_shader_texture_lod_enable = (ext_mode != extension_disable);
+ state->ARB_shader_texture_lod_warn = (ext_mode == extension_warn);
+
+ unsupported = !state->extensions->ARB_shader_texture_lod;
} else if (strcmp(name, "GL_ARB_shader_stencil_export") == 0) {
state->ARB_shader_stencil_export_enable = (ext_mode != extension_disable);
state->ARB_shader_stencil_export_warn = (ext_mode == extension_warn);
diff --git a/src/glsl/glsl_parser_extras.h b/src/glsl/glsl_parser_extras.h
index 6df0e16..9abc90f 100644
--- a/src/glsl/glsl_parser_extras.h
+++ b/src/glsl/glsl_parser_extras.h
@@ -168,6 +168,8 @@ struct _mesa_glsl_parse_state {
unsigned ARB_texture_rectangle_warn:1;
unsigned EXT_texture_array_enable:1;
unsigned EXT_texture_array_warn:1;
+ unsigned ARB_shader_texture_lod_enable:1;
+ unsigned ARB_shader_texture_lod_warn:1;
unsigned ARB_shader_stencil_export_enable:1;
unsigned ARB_shader_stencil_export_warn:1;
unsigned AMD_conservative_depth_enable:1;
--
1.7.4.4
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