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Add support for ARB_uniform_buffer_object

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GLSL Version : >= 120

Purpose:
Allow users to use features by enabling this extension, even in low versions.

Extension Name:
ARB_uniform_buffer_object

Builtin-variables:
Uniform

Builtin-functions:
Nah

Keywords:
Nah

Features:
uniform block

Reference:
https://www.khronos.org/registry/OpenGL/extensions/ARB/ARB_uniform_buffer_object.txt
This commit is contained in:
Chow 2019-11-26 17:02:46 +08:00
parent bd97b6f9f2
commit 97c4c0936f
5 changed files with 18 additions and 2 deletions
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12
Test/120.vert
View File

@ -201,3 +201,15 @@ int mac;
#define macr(A,B) A ## B
int macr(qrs,tuv);
layout(std140) uniform BlockName // ERROR
{
int test;
};
#extension GL_ARB_uniform_buffer_object : enable
layout(std140) uniform BlockName
{
int test;
};

3
Test/baseResults/120.vert.out
View File

@ -79,7 +79,8 @@ ERROR: 0:192: 'assign' : l-value required (can't modify a const)
ERROR: 0:195: 'gl_ModelViewMatrix' : identifiers starting with "gl_" are reserved
ERROR: 0:200: 'token pasting (##)' : not supported for this version or the enabled extensions
ERROR: 0:203: 'token pasting (##)' : not supported for this version or the enabled extensions
ERROR: 80 compilation errors. No code generated.
ERROR: 0:205: '' : syntax error, unexpected IDENTIFIER
ERROR: 81 compilation errors. No code generated.
Shader version: 120

2
glslang/MachineIndependent/ParseHelper.cpp
View File

@ -7609,7 +7609,7 @@ void TParseContext::blockStageIoCheck(const TSourceLoc& loc, const TQualifier& q
switch (qualifier.storage) {
case EvqUniform:
profileRequires(loc, EEsProfile, 300, nullptr, "uniform block");
profileRequires(loc, ENoProfile, 140, nullptr, "uniform block");
profileRequires(loc, ENoProfile, 140, E_GL_ARB_uniform_buffer_object, "uniform block");
if (currentBlockQualifier.layoutPacking == ElpStd430 && ! currentBlockQualifier.isPushConstant())
requireExtensions(loc, 1, &E_GL_EXT_scalar_block_layout, "std430 requires the buffer storage qualifier");
break;

2
glslang/MachineIndependent/Versions.cpp
View File

@ -192,6 +192,7 @@ void TParseVersions::initializeExtensionBehavior()
extensionBehavior[E_GL_ARB_shader_viewport_layer_array] = EBhDisable;
extensionBehavior[E_GL_ARB_fragment_shader_interlock] = EBhDisable;
extensionBehavior[E_GL_ARB_shader_clock] = EBhDisable;
extensionBehavior[E_GL_ARB_uniform_buffer_object] = EBhDisable;
extensionBehavior[E_GL_KHR_shader_subgroup_basic] = EBhDisable;
extensionBehavior[E_GL_KHR_shader_subgroup_vote] = EBhDisable;
@ -397,6 +398,7 @@ void TParseVersions::getPreamble(std::string& preamble)
// "#define GL_ARB_cull_distance 1\n" // present for 4.5, but need extension control over block members
"#define GL_ARB_post_depth_coverage 1\n"
"#define GL_ARB_fragment_shader_interlock 1\n"
"#define GL_ARB_uniform_buffer_object 1\n"
"#define GL_EXT_shader_non_constant_global_initializers 1\n"
"#define GL_EXT_shader_image_load_formatted 1\n"
"#define GL_EXT_post_depth_coverage 1\n"

1
glslang/MachineIndependent/Versions.h
View File

@ -144,6 +144,7 @@ const char* const E_GL_ARB_post_depth_coverage = "GL_ARB_post_depth_cov
const char* const E_GL_ARB_shader_viewport_layer_array = "GL_ARB_shader_viewport_layer_array";
const char* const E_GL_ARB_fragment_shader_interlock = "GL_ARB_fragment_shader_interlock";
const char* const E_GL_ARB_shader_clock = "GL_ARB_shader_clock";
const char* const E_GL_ARB_uniform_buffer_object = "GL_ARB_uniform_buffer_object";
const char* const E_GL_KHR_shader_subgroup_basic = "GL_KHR_shader_subgroup_basic";
const char* const E_GL_KHR_shader_subgroup_vote = "GL_KHR_shader_subgroup_vote";