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glsl: Add support for OES_standard_derivatives in GLSL ES.

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Previously, we advertised the extension but the builtin functions
were enabled only for GLSL and not for ES.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=52003

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Tomeu Vizoso 2012-07-16 20:45:17 +02:00 • committed by Kenneth Graunke
parent 8c94f6bbd8
commit d5c918f6ad
3 changed files with 23 additions and 0 deletions
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20
src/glsl/builtins/profiles/OES_standard_derivatives.frag Normal file
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@ -0,0 +1,20 @@
#version 100
#extension GL_OES_standard_derivatives : enable
/*
* 8.8 - Fragment Processing Functions
*/
float dFdx(float p);
vec2 dFdx(vec2 p);
vec3 dFdx(vec3 p);
vec4 dFdx(vec4 p);
float dFdy(float p);
vec2 dFdy(vec2 p);
vec3 dFdy(vec3 p);
vec4 dFdy(vec4 p);
float fwidth(float p);
vec2 fwidth(vec2 p);
vec3 fwidth(vec3 p);
vec4 fwidth(vec4 p);

1
src/glsl/glsl_parser_extras.cpp
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@ -288,6 +288,7 @@ static const _mesa_glsl_extension _mesa_glsl_supported_extensions[] = {
EXT(OES_EGL_image_external, true, false, true, false, true, OES_EGL_image_external),
EXT(ARB_shader_bit_encoding, true, true, true, true, false, ARB_shader_bit_encoding),
EXT(ARB_uniform_buffer_object, true, false, true, true, false, ARB_uniform_buffer_object),
EXT(OES_standard_derivatives, false, false, true, false, true, OES_standard_derivatives),
};
#undef EXT

2
src/glsl/glsl_parser_extras.h
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@ -203,6 +203,8 @@ struct _mesa_glsl_parse_state {
bool ARB_shader_bit_encoding_warn;
bool ARB_uniform_buffer_object_enable;
bool ARB_uniform_buffer_object_warn;
bool OES_standard_derivatives_enable;
bool OES_standard_derivatives_warn;
/*@}*/
/** Extensions supported by the OpenGL implementation. */