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Add support for es extension GL_EXT_blend_func_extended

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* Introduces builtin variables gl_SecondaryFragColorEXT and gl_SecondaryFragDataEXT
* Introduces builtin constant gl_MaxDualSourceDrawBuffersEXT
* enables support for layout qualifier "index" in es profile
This commit is contained in:
Pankaj Mistry 2020-04-21 11:33:57 -07:00
parent 2c53baedbb
commit e05cc20ec2
14 changed files with 173 additions and 65 deletions
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2
StandAlone/ResourceLimits.cpp
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@ -134,6 +134,7 @@ const TBuiltInResource DefaultTBuiltInResource = {
/* .maxTaskWorkGroupSizeY_NV = */ 1,
/* .maxTaskWorkGroupSizeZ_NV = */ 1,
/* .maxMeshViewCountNV = */ 4,
/* .maxDualSourceDrawBuffersEXT = */ 1,
/* .limits = */ {
/* .nonInductiveForLoops = */ 1,
@ -243,6 +244,7 @@ std::string GetDefaultTBuiltInResourceString()
<< "MaxTaskWorkGroupSizeY_NV " << DefaultTBuiltInResource.maxTaskWorkGroupSizeY_NV << "\n"
<< "MaxTaskWorkGroupSizeZ_NV " << DefaultTBuiltInResource.maxTaskWorkGroupSizeZ_NV << "\n"
<< "MaxMeshViewCountNV " << DefaultTBuiltInResource.maxMeshViewCountNV << "\n"
<< "MaxDualSourceDrawBuffersEXT " << DefaultTBuiltInResource.maxDualSourceDrawBuffersEXT << "\n"
<< "nonInductiveForLoops " << DefaultTBuiltInResource.limits.nonInductiveForLoops << "\n"
<< "whileLoops " << DefaultTBuiltInResource.limits.whileLoops << "\n"
<< "doWhileLoops " << DefaultTBuiltInResource.limits.doWhileLoops << "\n"

13
Test/100.frag
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@ -201,6 +201,19 @@ float fooinittest()
return fooinit();
}
// Test extension GL_EXT_blend_func_extended
void blendFuncFail() // Error since extension GL_EXT_blend_func_extended is disabled
{
gl_SecondaryFragColorEXT = vec4(1.0);
gl_SecondaryFragDataEXT[gl_MaxDualSourceDrawBuffersEXT - 1] = vec4(0.1);
}
#extension GL_EXT_blend_func_extended : enable
void blendFunc()
{
gl_SecondaryFragColorEXT = vec4(1.0);
gl_SecondaryFragDataEXT[gl_MaxDualSourceDrawBuffersEXT - 1] = vec4(0.1);
}
// Test extra-function initializers
const float fi1 = 3.0;
const float fi2 = 4.0;

5
Test/300.frag
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@ -177,6 +177,11 @@ void testmixFail()
int ival = mix(x, y, b); // Error since extenson GL_EXT_shader_integer_mix is disabled
}
// Test layout qualifier "index" with extension GL_EXT_blend_func_extended
layout(location = 0, index = 1) out vec4 outVarFail; // Error Index supported with extension GL_EXT_blend_func_extended enabled
#extension GL_EXT_blend_func_extended : enable
layout(location = 0, index = 2) out vec4 outVarPass;
#ifndef GL_FRAGMENT_PRECISION_HIGH
#error missing GL_FRAGMENT_PRECISION_HIGH
#endif

159
Test/baseResults/100.frag.out
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@ -82,15 +82,19 @@ ERROR: 0:192: '.' : cannot apply to an array: nothing
ERROR: 0:193: '.length' : not supported for this version or the enabled extensions
ERROR: 0:194: '.' : cannot apply to an array: method
ERROR: 0:194: 'a' : can't use function syntax on variable
ERROR: 0:214: 'non-constant global initializer (needs GL_EXT_shader_non_constant_global_initializers)' : not supported for this version or the enabled extensions
ERROR: 0:222: '#define' : names containing consecutive underscores are reserved, and an error if version < 300: A__B
ERROR: 0:223: 'a__b' : identifiers containing consecutive underscores ("__") are reserved, and an error if version < 300
ERROR: 0:207: 'gl_SecondaryFragColorEXT' : required extension not requested: GL_EXT_blend_func_extended
ERROR: 0:208: 'gl_SecondaryFragDataEXT' : required extension not requested: GL_EXT_blend_func_extended
ERROR: 0:208: 'gl_MaxDualSourceDrawBuffersEXT' : required extension not requested: GL_EXT_blend_func_extended
ERROR: 0:227: 'non-constant global initializer (needs GL_EXT_shader_non_constant_global_initializers)' : not supported for this version or the enabled extensions
ERROR: 0:235: '#define' : names containing consecutive underscores are reserved, and an error if version < 300: A__B
ERROR: 0:236: 'a__b' : identifiers containing consecutive underscores ("__") are reserved, and an error if version < 300
ERROR: 0:3000: '#error' : line of this error should be 3000
ERROR: 0:3002: '' : syntax error, unexpected IDENTIFIER, expecting LEFT_BRACE or COMMA or SEMICOLON
ERROR: 79 compilation errors. No code generated.
ERROR: 82 compilation errors. No code generated.
Shader version: 100
Requested GL_EXT_blend_func_extended
Requested GL_EXT_frag_depth
Requested GL_EXT_shader_non_constant_global_initializers
Requested GL_EXT_shader_texture_lod
@ -361,36 +365,76 @@ ERROR: node is still EOpNull!
0:201 Sequence
0:201 Branch: Return with expression
0:201 Function Call: fooinit( ( global mediump float)
0:209 Function Definition: fooinit( ( global mediump float)
0:209 Function Parameters:
0:211 Sequence
0:211 Branch: Return with expression
0:211 Constant:
0:211 12.000000
0:214 Sequence
0:214 move second child to first child ( temp mediump int)
0:214 'init1' ( global mediump int)
0:214 Test condition and select ( temp mediump int)
0:214 Condition
0:214 'gl_FrontFacing' ( gl_FrontFacing bool Face)
0:214 true case
0:205 Function Definition: blendFuncFail( ( global void)
0:205 Function Parameters:
0:207 Sequence
0:207 move second child to first child ( temp mediump 4-component vector of float)
0:207 'gl_SecondaryFragColorEXT' ( out mediump 4-component vector of float SecondaryFragColorEXT)
0:207 Constant:
0:207 1.000000
0:207 1.000000
0:207 1.000000
0:207 1.000000
0:208 move second child to first child ( temp mediump 4-component vector of float)
0:208 direct index ( temp mediump 4-component vector of float SecondaryFragDataEXT)
0:208 'gl_SecondaryFragDataEXT' ( out 1-element array of mediump 4-component vector of float SecondaryFragDataEXT)
0:208 Constant:
0:208 0 (const int)
0:208 Constant:
0:208 0.100000
0:208 0.100000
0:208 0.100000
0:208 0.100000
0:211 Function Definition: blendFunc( ( global void)
0:211 Function Parameters:
0:213 Sequence
0:213 move second child to first child ( temp mediump 4-component vector of float)
0:213 'gl_SecondaryFragColorEXT' ( out mediump 4-component vector of float SecondaryFragColorEXT)
0:213 Constant:
0:213 1.000000
0:213 1.000000
0:213 1.000000
0:213 1.000000
0:214 move second child to first child ( temp mediump 4-component vector of float)
0:214 direct index ( temp mediump 4-component vector of float SecondaryFragDataEXT)
0:214 'gl_SecondaryFragDataEXT' ( out 1-element array of mediump 4-component vector of float SecondaryFragDataEXT)
0:214 Constant:
0:214 0 (const int)
0:214 Constant:
0:214 1 (const int)
0:214 false case
0:214 Constant:
0:214 2 (const int)
0:220 Sequence
0:220 move second child to first child ( temp mediump int)
0:220 'init2' ( global mediump int)
0:220 Test condition and select ( temp mediump int)
0:220 Condition
0:220 'gl_FrontFacing' ( gl_FrontFacing bool Face)
0:220 true case
0:220 Constant:
0:220 1 (const int)
0:220 false case
0:220 Constant:
0:220 2 (const int)
0:214 0.100000
0:214 0.100000
0:214 0.100000
0:214 0.100000
0:222 Function Definition: fooinit( ( global mediump float)
0:222 Function Parameters:
0:224 Sequence
0:224 Branch: Return with expression
0:224 Constant:
0:224 12.000000
0:227 Sequence
0:227 move second child to first child ( temp mediump int)
0:227 'init1' ( global mediump int)
0:227 Test condition and select ( temp mediump int)
0:227 Condition
0:227 'gl_FrontFacing' ( gl_FrontFacing bool Face)
0:227 true case
0:227 Constant:
0:227 1 (const int)
0:227 false case
0:227 Constant:
0:227 2 (const int)
0:233 Sequence
0:233 move second child to first child ( temp mediump int)
0:233 'init2' ( global mediump int)
0:233 Test condition and select ( temp mediump int)
0:233 Condition
0:233 'gl_FrontFacing' ( gl_FrontFacing bool Face)
0:233 true case
0:233 Constant:
0:233 1 (const int)
0:233 false case
0:233 Constant:
0:233 2 (const int)
0:? Linker Objects
0:? 'a' ( global 3-element array of mediump int)
0:? 'uint' ( global mediump int)
@ -430,6 +474,7 @@ Linked fragment stage:
Shader version: 100
Requested GL_EXT_blend_func_extended
Requested GL_EXT_frag_depth
Requested GL_EXT_shader_non_constant_global_initializers
Requested GL_EXT_shader_texture_lod
@ -520,30 +565,30 @@ ERROR: node is still EOpNull!
0:152 'f124' ( global mediump float)
0:152 Constant:
0:152 50000000000.000000
0:214 Sequence
0:214 move second child to first child ( temp mediump int)
0:214 'init1' ( global mediump int)
0:214 Test condition and select ( temp mediump int)
0:214 Condition
0:214 'gl_FrontFacing' ( gl_FrontFacing bool Face)
0:214 true case
0:214 Constant:
0:214 1 (const int)
0:214 false case
0:214 Constant:
0:214 2 (const int)
0:220 Sequence
0:220 move second child to first child ( temp mediump int)
0:220 'init2' ( global mediump int)
0:220 Test condition and select ( temp mediump int)
0:220 Condition
0:220 'gl_FrontFacing' ( gl_FrontFacing bool Face)
0:220 true case
0:220 Constant:
0:220 1 (const int)
0:220 false case
0:220 Constant:
0:220 2 (const int)
0:227 Sequence
0:227 move second child to first child ( temp mediump int)
0:227 'init1' ( global mediump int)
0:227 Test condition and select ( temp mediump int)
0:227 Condition
0:227 'gl_FrontFacing' ( gl_FrontFacing bool Face)
0:227 true case
0:227 Constant:
0:227 1 (const int)
0:227 false case
0:227 Constant:
0:227 2 (const int)
0:233 Sequence
0:233 move second child to first child ( temp mediump int)
0:233 'init2' ( global mediump int)
0:233 Test condition and select ( temp mediump int)
0:233 Condition
0:233 'gl_FrontFacing' ( gl_FrontFacing bool Face)
0:233 true case
0:233 Constant:
0:233 1 (const int)
0:233 false case
0:233 Constant:
0:233 2 (const int)
0:? Linker Objects
0:? 'a' ( global 3-element array of mediump int)
0:? 'uint' ( global mediump int)

20
Test/baseResults/300.frag.out
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@ -41,15 +41,18 @@ ERROR: 0:129: 'texel offset' : value is out of range: [gl_MinProgramTexelOffset,
ERROR: 0:148: 'qualifier' : cannot use auxiliary, memory, interpolation, or precision qualifier in a default qualifier declaration (declaration with no type)
ERROR: 0:150: 'early_fragment_tests' : not supported for this version or the enabled extensions
ERROR: 0:177: 'specific signature of builtin mix' : required extension not requested: GL_EXT_shader_integer_mix
ERROR: 0:184: 'invariant' : can only apply to an output
ERROR: 0:185: 'invariant' : can only apply to an output
ERROR: 0:186: 'invariant' : can only apply to an output
ERROR: 0:188: 'imageBuffer' : Reserved word.
ERROR: 0:188: '' : syntax error, unexpected IMAGEBUFFER, expecting COMMA or SEMICOLON
ERROR: 47 compilation errors. No code generated.
ERROR: 0:181: 'index layout qualifier on fragment output' : not supported for this version or the enabled extensions
ERROR: 0:183: 'index' : value must be 0 or 1
ERROR: 0:189: 'invariant' : can only apply to an output
ERROR: 0:190: 'invariant' : can only apply to an output
ERROR: 0:191: 'invariant' : can only apply to an output
ERROR: 0:193: 'imageBuffer' : Reserved word.
ERROR: 0:193: '' : syntax error, unexpected IMAGEBUFFER, expecting COMMA or SEMICOLON
ERROR: 49 compilation errors. No code generated.
Shader version: 300
Requested GL_EXT_blend_func_extended
Requested GL_EXT_shader_integer_mix
using early_fragment_tests
ERROR: node is still EOpNull!
@ -530,6 +533,8 @@ ERROR: node is still EOpNull!
0:? 'y' ( global mediump int)
0:? 'z' ( global mediump uint)
0:? 'w' ( global mediump uint)
0:? 'outVarFail' (layout( location=0 index=1) out lowp 4-component vector of float)
0:? 'outVarPass' (layout( location=0 index=0) out lowp 4-component vector of float)
0:? 'fooinv' ( invariant smooth in lowp 4-component vector of float)
@ -538,6 +543,7 @@ Linked fragment stage:
ERROR: Linking fragment stage: when more than one fragment shader output, all must have location qualifiers
Shader version: 300
Requested GL_EXT_blend_func_extended
Requested GL_EXT_shader_integer_mix
using early_fragment_tests
ERROR: node is still EOpNull!
@ -769,5 +775,7 @@ ERROR: node is still EOpNull!
0:? 'y' ( global mediump int)
0:? 'z' ( global mediump uint)
0:? 'w' ( global mediump uint)
0:? 'outVarFail' (layout( location=0 index=1) out lowp 4-component vector of float)
0:? 'outVarPass' (layout( location=0 index=0) out lowp 4-component vector of float)
0:? 'fooinv' ( invariant smooth in lowp 4-component vector of float)

1
Test/baseResults/test.conf
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@ -90,6 +90,7 @@ MaxTaskWorkGroupSizeX_NV 32
MaxTaskWorkGroupSizeY_NV 1
MaxTaskWorkGroupSizeZ_NV 1
MaxMeshViewCountNV 4
MaxDualSourceDrawBuffersEXT 1
nonInductiveForLoops 1
whileLoops 1
doWhileLoops 1

6
glslang/Include/BaseTypes.h
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@ -231,6 +231,9 @@ enum TBuiltInVariable {
EbvFragSizeEXT,
EbvFragInvocationCountEXT,
EbvSecondaryFragDataEXT,
EbvSecondaryFragColorEXT,
EbvViewportMaskNV,
EbvSecondaryPositionNV,
EbvSecondaryViewportMaskNV,
@ -433,6 +436,9 @@ __inline const char* GetBuiltInVariableString(TBuiltInVariable v)
case EbvFragSizeEXT: return "FragSizeEXT";
case EbvFragInvocationCountEXT: return "FragInvocationCountEXT";
case EbvSecondaryFragDataEXT: return "SecondaryFragDataEXT";
case EbvSecondaryFragColorEXT: return "SecondaryFragColorEXT";
case EbvViewportMaskNV: return "ViewportMaskNV";
case EbvSecondaryPositionNV: return "SecondaryPositionNV";
case EbvSecondaryViewportMaskNV: return "SecondaryViewportMaskNV";

1
glslang/Include/ResourceLimits.h
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@ -142,6 +142,7 @@ struct TBuiltInResource {
int maxTaskWorkGroupSizeY_NV;
int maxTaskWorkGroupSizeZ_NV;
int maxMeshViewCountNV;
int maxDualSourceDrawBuffersEXT;
TLimits limits;
};

1
glslang/Include/glslang_c_interface.h
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@ -148,6 +148,7 @@ typedef struct glslang_resource_s {
int max_task_work_group_size_y_nv;
int max_task_work_group_size_z_nv;
int max_mesh_view_count_nv;
int maxDualSourceDrawBuffersEXT;
glslang_limits_t limits;
} glslang_resource_t;

22
glslang/MachineIndependent/Initialize.cpp
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@ -6755,6 +6755,18 @@ void TBuiltIns::initialize(const TBuiltInResource &resources, int version, EProf
s.append(builtInConstant);
}
if (version >= 100) {
// GL_EXT_blend_func_extended
snprintf(builtInConstant, maxSize, "const mediump int gl_MaxDualSourceDrawBuffersEXT = %d;", resources.maxDualSourceDrawBuffersEXT);
s.append(builtInConstant);
// this is here instead of with the others in initialize(version, profile) due to the dependence on gl_MaxDualSourceDrawBuffersEXT
if (language == EShLangFragment) {
s.append(
"mediump vec4 gl_SecondaryFragColorEXT;"
"mediump vec4 gl_SecondaryFragDataEXT[gl_MaxDualSourceDrawBuffersEXT];"
"\n");
}
}
} else {
// non-ES profile
@ -9119,6 +9131,16 @@ void TBuiltIns::identifyBuiltIns(int version, EProfile profile, const SpvVersion
symbolTable.insert(*new TVariable(NewPoolTString("gl_FragData"), fragData));
SpecialQualifier("gl_FragData", EvqFragColor, EbvFragData, symbolTable);
}
// GL_EXT_blend_func_extended
if (profile == EEsProfile && version >= 100) {
symbolTable.setVariableExtensions("gl_MaxDualSourceDrawBuffersEXT", 1, &E_GL_EXT_blend_func_extended);
symbolTable.setVariableExtensions("gl_SecondaryFragColorEXT", 1, &E_GL_EXT_blend_func_extended);
symbolTable.setVariableExtensions("gl_SecondaryFragDataEXT", 1, &E_GL_EXT_blend_func_extended);
SpecialQualifier("gl_SecondaryFragColorEXT", EvqVaryingOut, EbvSecondaryFragColorEXT, symbolTable);
SpecialQualifier("gl_SecondaryFragDataEXT", EvqVaryingOut, EbvSecondaryFragDataEXT, symbolTable);
}
break;
case EShLangTessControl:

4
glslang/MachineIndependent/ParseHelper.cpp
View File

@ -5412,10 +5412,10 @@ void TParseContext::setLayoutQualifier(const TSourceLoc& loc, TPublicType& publi
case EShLangFragment:
if (id == "index") {
requireProfile(loc, ECompatibilityProfile | ECoreProfile, "index layout qualifier on fragment output");
requireProfile(loc, ECompatibilityProfile | ECoreProfile | EEsProfile, "index layout qualifier on fragment output");
const char* exts[2] = { E_GL_ARB_separate_shader_objects, E_GL_ARB_explicit_attrib_location };
profileRequires(loc, ECompatibilityProfile | ECoreProfile, 330, 2, exts, "index layout qualifier on fragment output");
profileRequires(loc, EEsProfile ,310, E_GL_EXT_blend_func_extended, "index layout qualifier on fragment output");
// "It is also a compile-time error if a fragment shader sets a layout index to less than 0 or greater than 1."
if (value < 0 || value > 1) {
value = 0;

2
glslang/MachineIndependent/Versions.cpp
View File

@ -306,6 +306,7 @@ void TParseVersions::initializeExtensionBehavior()
extensionBehavior[E_GL_EXT_ray_tracing] = EBhDisable;
extensionBehavior[E_GL_EXT_ray_query] = EBhDisable;
extensionBehavior[E_GL_EXT_ray_flags_primitive_culling] = EBhDisable;
extensionBehavior[E_GL_EXT_blend_func_extended] = EBhDisable;
// OVR extensions
extensionBehavior[E_GL_OVR_multiview] = EBhDisable;
@ -365,6 +366,7 @@ void TParseVersions::getPreamble(std::string& preamble)
"#define GL_EXT_texture_buffer 1\n"
"#define GL_EXT_texture_cube_map_array 1\n"
"#define GL_EXT_shader_integer_mix 1\n"
"#define GL_EXT_blend_func_extended 1\n"
// OES matching AEP
"#define GL_OES_geometry_shader 1\n"

1
glslang/MachineIndependent/Versions.h
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@ -196,6 +196,7 @@ const char* const E_GL_EXT_debug_printf = "GL_EXT_debug_prin
const char* const E_GL_EXT_ray_tracing = "GL_EXT_ray_tracing";
const char* const E_GL_EXT_ray_query = "GL_EXT_ray_query";
const char* const E_GL_EXT_ray_flags_primitive_culling = "GL_EXT_ray_flags_primitive_culling";
const char* const E_GL_EXT_blend_func_extended = "GL_EXT_blend_func_extended";
// Arrays of extensions for the above viewportEXTs duplications

1
glslang/OSDependent/Web/glslang.js.cpp
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@ -141,6 +141,7 @@ const TBuiltInResource DefaultTBuiltInResource = {
/* .maxTaskWorkGroupSizeY_NV = */ 1,
/* .maxTaskWorkGroupSizeZ_NV = */ 1,
/* .maxMeshViewCountNV = */ 4,
/* .maxDualSourceDrawBuffersEXT = */ 1,
/* .limits = */ {
/* .nonInductiveForLoops = */ 1,