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Tessellation: Implicit array sizing and consistency checking of control-shader output arrays based on layout(vertices=...).

Browse Source 
git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@24518 e7fa87d3-cd2b-0410-9028-fcbf551c1848
This commit is contained in:
John Kessenich 2013-12-13 18:38:43 +00:00
parent 116c30b6ed
commit f3e2a89452
19 changed files with 434 additions and 104 deletions
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8
Test/400.tesc
View File

@ -35,3 +35,11 @@ void main()
gl_TessLevelOuter[3] = 3.2;
gl_TessLevelInner[1] = 1.3;
}
layout(vertices = 4) in; // ERROR
layout(vertices = 5) out; // ERROR
void foo()
{
gl_out[4].gl_PointSize; // ERROR
}

11
Test/410.tesc Normal file
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@ -0,0 +1,11 @@
#version 400 core
// no layout(vertices = ...) out;
int outa[gl_out.length()]; // ERROR
patch out vec4 patchOut;
void main()
{
}

27
Test/420.tesc Normal file
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@ -0,0 +1,27 @@
#version 400 core
#extension GL_ARB_separate_shader_objects : enable
layout(vertices = 4) out;
out gl_PerVertex {
vec4 gl_Position;
} gl_out[3]; // ERROR, wrong size
out int a[gl_out.length()];
out int outb[5]; // ERROR, wrong size
out int outc[];
void main()
{
vec4 p = gl_in[1].gl_Position;
float ps = gl_in[1].gl_PointSize;
float cd = gl_in[1].gl_ClipDistance[2];
int pvi = gl_PatchVerticesIn;
int pid = gl_PrimitiveID;
int iid = gl_InvocationID;
gl_out[1].gl_Position = p;
gl_out[1].gl_PointSize = ps; // ERROR
}

21
Test/420_size_gl_in.geom Normal file
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@ -0,0 +1,21 @@
#version 420 core
// testing input arrays without a gl_in[] block redeclaration, see 400.geom for with
int i;
layout(triangles) in;
in vec4 colorun[];
in vec4 color3[3];
void foo()
{
gl_in.length();
gl_in[1].gl_Position;
gl_in.length();
gl_in[i].gl_Position;
}
in gl_PerVertex { // ERROR, already used
vec4 gl_Position;
} gl_in[];

6
Test/baseResults/400.geom.out
View File

@ -4,8 +4,8 @@ ERROR: 0:13: 'invocations' : can only apply to a standalone qualifier
ERROR: 0:20: 'patch' : not supported in this stage: geometry
ERROR: 0:20: 'gl_PointSize' : cannot add layout to redeclared block member
ERROR: 0:20: 'gl_PointSize' : cannot add patch to redeclared block member
ERROR: 0:25: 'length' : array must be declared with a size before using this method
ERROR: 0:36: 'length' : array must be declared with a size before using this method
ERROR: 0:25: 'length' : array must first be sized by a redeclaration or layout qualifier
ERROR: 0:36: 'length' : array must first be sized by a redeclaration or layout qualifier
ERROR: 0:40: 'triangles' : inconsistent input primitive for array size colorBad
ERROR: 0:44: 'triangles' : inconsistent input primitive for array size colorbad2
ERROR: 0:56: 'location' : repeated use of location 4
@ -81,7 +81,7 @@ ERROR: node is still EOpNull!
Linked geometry stage:
ERROR: Linking geometry stage: At least one geometry shader must specify an output layout primitive
ERROR: Linking geometry stage: At least one shader must specify an output layout primitive
invocations = 4
max_vertices = 127

26
Test/baseResults/400.tesc.out
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@ -1,11 +1,13 @@
400.tesc
Warning, version 400 is not yet complete; some version-specific features are present, but many are missing.
ERROR: 0:4: 'length' : array must be declared with a size before using this method
ERROR: 0:6: 'quads' : unrecognized layout identifier, or qualifier requires assignemnt (e.g., binding = 4)
ERROR: 0:7: 'ccw' : unrecognized layout identifier, or qualifier requires assignemnt (e.g., binding = 4)
ERROR: 0:8: 'fractional_even_spacing' : unrecognized layout identifier, or qualifier requires assignemnt (e.g., binding = 4)
ERROR: 0:10: 'patch' : can only use on output in tessellation-control shader
ERROR: 5 compilation errors. No code generated.
ERROR: 0:39: 'vertices' : can only apply to 'out'
ERROR: 0:40: 'vertices' : cannot change previously set layout value
ERROR: 0:44: '[' : array index out of range '4'
ERROR: 7 compilation errors. No code generated.
vertices = 4
@ -67,7 +69,7 @@ ERROR: node is still EOpNull!
0:31 move second child to first child (4-component vector of float)
0:31 gl_Position: direct index for structure (4-component vector of float)
0:31 direct index (block{gl_Position,gl_PointSize,gl_ClipDistance})
0:31 'gl_out' (out unsized array of block{gl_Position,gl_PointSize,gl_ClipDistance})
0:31 'gl_out' (out 4-element array of block{gl_Position,gl_PointSize,gl_ClipDistance})
0:31 Constant:
0:31 1 (const int)
0:31 Constant:
@ -76,7 +78,7 @@ ERROR: node is still EOpNull!
0:32 move second child to first child (float)
0:32 gl_PointSize: direct index for structure (float)
0:32 direct index (block{gl_Position,gl_PointSize,gl_ClipDistance})
0:32 'gl_out' (out unsized array of block{gl_Position,gl_PointSize,gl_ClipDistance})
0:32 'gl_out' (out 4-element array of block{gl_Position,gl_PointSize,gl_ClipDistance})
0:32 Constant:
0:32 1 (const int)
0:32 Constant:
@ -86,7 +88,7 @@ ERROR: node is still EOpNull!
0:33 direct index (float)
0:33 gl_ClipDistance: direct index for structure (unsized array of float)
0:33 direct index (block{gl_Position,gl_PointSize,gl_ClipDistance})
0:33 'gl_out' (out unsized array of block{gl_Position,gl_PointSize,gl_ClipDistance})
0:33 'gl_out' (out 4-element array of block{gl_Position,gl_PointSize,gl_ClipDistance})
0:33 Constant:
0:33 1 (const int)
0:33 Constant:
@ -108,11 +110,21 @@ ERROR: node is still EOpNull!
0:36 1 (const int)
0:36 Constant:
0:36 1.300000
0:42 Function Definition: foo( (void)
0:42 Function Parameters:
0:44 Sequence
0:44 gl_PointSize: direct index for structure (float)
0:44 direct index (block{gl_Position,gl_PointSize,gl_ClipDistance})
0:44 'gl_out' (out 4-element array of block{gl_Position,gl_PointSize,gl_ClipDistance})
0:44 Constant:
0:44 4 (const int)
0:44 Constant:
0:44 1 (const int)
0:? Linker Objects
0:? 'outa' (1-element array of int)
0:? 'outa' (4-element array of int)
0:? 'patchIn' (patch in 4-component vector of float)
0:? 'patchOut' (patch out 4-component vector of float)
0:? 'gl_out' (out unsized array of block{gl_Position,gl_PointSize,gl_ClipDistance})
0:? 'gl_out' (out 4-element array of block{gl_Position,gl_PointSize,gl_ClipDistance})
Linked tessellation control stage:

6
Test/baseResults/410.geom.out
View File

@ -52,9 +52,9 @@ ERROR: node is still EOpNull!
Linked geometry stage:
ERROR: Linking geometry stage: At least one geometry shader must specify an input layout primitive
ERROR: Linking geometry stage: At least one geometry shader must specify an output layout primitive
ERROR: Linking geometry stage: At least one geometry shader must specify a layout(max_vertices = value)
ERROR: Linking geometry stage: At least one shader must specify an input layout primitive
ERROR: Linking geometry stage: At least one shader must specify an output layout primitive
ERROR: Linking geometry stage: At least one shader must specify a layout(max_vertices = value)
invocations = 0
max_vertices = 0

21
Test/baseResults/410.tesc.out Normal file
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@ -0,0 +1,21 @@
410.tesc
Warning, version 400 is not yet complete; some version-specific features are present, but many are missing.
ERROR: 0:4: 'length' : array must first be sized by a redeclaration or layout qualifier
ERROR: 1 compilation errors. No code generated.
vertices = 0
ERROR: node is still EOpNull!
0:8 Function Definition: main( (void)
0:8 Function Parameters:
0:? Linker Objects
0:? 'outa' (1-element array of int)
0:? 'patchOut' (patch out 4-component vector of float)
Linked tessellation control stage:
ERROR: Linking tessellation control stage: At least one shader must specify an output layout(vertices=...)
vertices = 0

8
Test/baseResults/420.geom.out
View File

@ -1,7 +1,7 @@
420.geom
Warning, version 420 is not yet complete; some version-specific features are present, but many are missing.
ERROR: 0:9: 'length' : array must be declared with a size before using this method
ERROR: 0:11: '[' : array must be redeclared with a size before being indexed with a variable
ERROR: 0:9: 'length' : array must first be sized by a redeclaration or layout qualifier
ERROR: 0:11: '[' : array must be sized by a redeclaration or layout qualifier before being indexed with a variable
ERROR: 0:42: 'assign' : l-value required (can't modify a const)
ERROR: 0:43: 'assign' : l-value required "v4" (can't modify a uniform)
ERROR: 0:48: 'gl_PointSize' : cannot change arrayness of redeclared block member
@ -123,8 +123,8 @@ ERROR: node is still EOpNull!
Linked geometry stage:
ERROR: Linking geometry stage: Missing entry point: Each stage requires one "void main()" entry point
ERROR: Linking geometry stage: At least one geometry shader must specify an output layout primitive
ERROR: Linking geometry stage: At least one geometry shader must specify a layout(max_vertices = value)
ERROR: Linking geometry stage: At least one shader must specify an output layout primitive
ERROR: Linking geometry stage: At least one shader must specify a layout(max_vertices = value)
invocations = 0
max_vertices = 0

85
Test/baseResults/420.tesc.out Normal file
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@ -0,0 +1,85 @@
420.tesc
Warning, version 400 is not yet complete; some version-specific features are present, but many are missing.
ERROR: 0:7: 'vertices' : inconsistent output number of vertices for array size gl_out
ERROR: 0:11: 'vertices' : inconsistent output number of vertices for array size a
ERROR: 0:12: 'vertices' : inconsistent output number of vertices for array size outb
ERROR: 0:26: 'gl_PointSize' : no such field in structure
ERROR: 0:26: 'assign' : cannot convert from 'float' to 'block{gl_Position}'
ERROR: 5 compilation errors. No code generated.
vertices = 4
ERROR: node is still EOpNull!
0:15 Function Definition: main( (void)
0:15 Function Parameters:
0:17 Sequence
0:17 Sequence
0:17 move second child to first child (4-component vector of float)
0:17 'p' (4-component vector of float)
0:17 gl_Position: direct index for structure (4-component vector of float)
0:17 direct index (block{gl_Position,gl_PointSize,gl_ClipDistance})
0:17 'gl_in' (in 32-element array of block{gl_Position,gl_PointSize,gl_ClipDistance})
0:17 Constant:
0:17 1 (const int)
0:17 Constant:
0:17 0 (const int)
0:18 Sequence
0:18 move second child to first child (float)
0:18 'ps' (float)
0:18 gl_PointSize: direct index for structure (float)
0:18 direct index (block{gl_Position,gl_PointSize,gl_ClipDistance})
0:18 'gl_in' (in 32-element array of block{gl_Position,gl_PointSize,gl_ClipDistance})
0:18 Constant:
0:18 1 (const int)
0:18 Constant:
0:18 1 (const int)
0:19 Sequence
0:19 move second child to first child (float)
0:19 'cd' (float)
0:19 direct index (float)
0:19 gl_ClipDistance: direct index for structure (unsized array of float)
0:19 direct index (block{gl_Position,gl_PointSize,gl_ClipDistance})
0:19 'gl_in' (in 32-element array of block{gl_Position,gl_PointSize,gl_ClipDistance})
0:19 Constant:
0:19 1 (const int)
0:19 Constant:
0:19 2 (const int)
0:19 Constant:
0:19 2 (const int)
0:21 Sequence
0:21 move second child to first child (int)
0:21 'pvi' (int)
0:21 'gl_PatchVerticesIn' (in int)
0:22 Sequence
0:22 move second child to first child (int)
0:22 'pid' (int)
0:22 'gl_PrimitiveID' (in int)
0:23 Sequence
0:23 move second child to first child (int)
0:23 'iid' (int)
0:23 'gl_InvocationID' (in int)
0:25 move second child to first child (4-component vector of float)
0:25 gl_Position: direct index for structure (4-component vector of float)
0:25 direct index (block{gl_Position})
0:25 'gl_out' (out 3-element array of block{gl_Position})
0:25 Constant:
0:25 1 (const int)
0:25 Constant:
0:25 0 (const int)
0:25 'p' (4-component vector of float)
0:26 direct index (block{gl_Position})
0:26 'gl_out' (out 3-element array of block{gl_Position})
0:26 Constant:
0:26 1 (const int)
0:? Linker Objects
0:? 'gl_out' (out 3-element array of block{gl_Position})
0:? 'a' (out 3-element array of int)
0:? 'outb' (out 5-element array of int)
0:? 'outc' (out 4-element array of int)
Linked tessellation control stage:
vertices = 4

2
Test/baseResults/420.tese.out
View File

@ -163,7 +163,7 @@ ERROR: node is still EOpNull!
Linked tessellation evaluation stage:
ERROR: Linking tessellation evaluation stage: At least one tessellation shader must specify an input layout primitive
ERROR: Linking tessellation evaluation stage: At least one shader must specify an input layout primitive
input primitive = none
vertex spacing = equal_spacing

49
Test/baseResults/420_size_gl_in.geom.out Normal file
View File

@ -0,0 +1,49 @@
420_size_gl_in.geom
Warning, version 420 is not yet complete; some version-specific features are present, but many are missing.
ERROR: 0:19: 'gl_PerVertex' : can only redeclare a built-in block once, and before any use
ERROR: 1 compilation errors. No code generated.
invocations = 0
max_vertices = 0
input primitive = triangles
output primitive = none
ERROR: node is still EOpNull!
0:11 Function Definition: foo( (void)
0:11 Function Parameters:
0:13 Sequence
0:13 Constant:
0:13 3 (const int)
0:14 gl_Position: direct index for structure (4-component vector of float)
0:14 direct index (block{gl_Position,gl_PointSize,gl_ClipDistance})
0:14 'gl_in' (in 3-element array of block{gl_Position,gl_PointSize,gl_ClipDistance})
0:14 Constant:
0:14 1 (const int)
0:14 Constant:
0:14 0 (const int)
0:15 Constant:
0:15 3 (const int)
0:16 gl_Position: direct index for structure (4-component vector of float)
0:16 indirect index (block{gl_Position,gl_PointSize,gl_ClipDistance})
0:16 'gl_in' (in 3-element array of block{gl_Position,gl_PointSize,gl_ClipDistance})
0:16 'i' (int)
0:16 Constant:
0:16 0 (const int)
0:? Linker Objects
0:? 'i' (int)
0:? 'colorun' (in 3-element array of 4-component vector of float)
0:? 'color3' (in 3-element array of 4-component vector of float)
0:? 'gl_in' (in 3-element array of block{gl_Position,gl_PointSize,gl_ClipDistance})
Linked geometry stage:
ERROR: Linking geometry stage: Missing entry point: Each stage requires one "void main()" entry point
ERROR: Linking geometry stage: At least one shader must specify an output layout primitive
ERROR: Linking geometry stage: At least one shader must specify a layout(max_vertices = value)
invocations = 0
max_vertices = 0
input primitive = triangles
output primitive = none

4
Test/baseResults/mains1.frag.out
View File

@ -44,8 +44,8 @@ Linked geometry stage:
ERROR: Linking geometry stage: Contradictory output layout primitives
ERROR: Linking geometry stage: Missing entry point: Each stage requires one "void main()" entry point
ERROR: Linking geometry stage: At least one geometry shader must specify an input layout primitive
ERROR: Linking geometry stage: At least one geometry shader must specify a layout(max_vertices = value)
ERROR: Linking geometry stage: At least one shader must specify an input layout primitive
ERROR: Linking geometry stage: At least one shader must specify a layout(max_vertices = value)
Linked fragment stage:

3
Test/testlist
View File

@ -49,7 +49,9 @@ tokenLength.vert
300scope.vert
400.frag
420.vert
420.tesc
420.geom
420_size_gl_in.geom
430scope.vert
lineContinuation100.vert
lineContinuation.vert
@ -58,6 +60,7 @@ numeral.frag
400.tesc
400.tese
410.geom
410.tesc
420.tese
430.vert
430.comp

4
glslang/Include/revision.h
View File

@ -9,5 +9,5 @@
// source have to figure out how to create revision.h just to get a build
// going. However, if it is not updated, it can be a version behind.
#define GLSLANG_REVISION "24480"
#define GLSLANG_DATE "2013/12/11 15:38:19"
#define GLSLANG_REVISION "24486"
#define GLSLANG_DATE "2013/12/11 18:25:37"

205
glslang/MachineIndependent/ParseHelper.cpp
View File

@ -437,13 +437,21 @@ TIntermTyped* TParseContext::handleBracketDereference(TSourceLoc loc, TIntermTyp
return intermediate.foldDereference(base, indexValue, loc);
else {
// at least one of base and index is variable...
if (isIoResizeArray(base->getType()))
handleIoResizeArrayAccess(loc, base);
if (index->getQualifier().storage == EvqConst) {
if (base->isArray() && base->getType().getArraySize() == 0)
updateMaxArraySize(loc, base, indexValue);
result = intermediate.addIndex(EOpIndexDirect, base, index, loc);
} else {
if (base->isArray() && base->getType().getArraySize() == 0)
error(loc, "", "[", "array must be redeclared with a size before being indexed with a variable");
if (base->isArray() && base->getType().getArraySize() == 0) {
if (isIoResizeArray(base->getType()))
error(loc, "", "[", "array must be sized by a redeclaration or layout qualifier before being indexed with a variable");
else
error(loc, "", "[", "array must be redeclared with a size before being indexed with a variable");
}
if (base->getBasicType() == EbtBlock)
requireProfile(base->getLoc(), ~EEsProfile, "variable indexing block array");
else if (language == EShLangFragment && base->getQualifier().isPipeOutput())
@ -474,9 +482,6 @@ TIntermTyped* TParseContext::handleBracketDereference(TSourceLoc loc, TIntermTyp
if (anyIndexLimits)
handleIndexLimits(loc, base, index);
if (language == EShLangGeometry && base->isArray())
handleInputArrayAccess(loc, base);
}
return result;
@ -523,62 +528,99 @@ void TParseContext::handleIndexLimits(TSourceLoc loc, TIntermTyped* base, TInter
}
}
// Handle a dereference of a geometry shader input arrays.
// See inputArrayNodeResizeList comment in ParseHelper.h.
//
void TParseContext::handleInputArrayAccess(TSourceLoc loc, TIntermTyped* base)
// Return true if this is a geometry shader input array or tessellation control output array.
bool TParseContext::isIoResizeArray(const TType& type)
{
if (base->getType().getQualifier().storage == EvqVaryingIn) {
TIntermSymbol* symbol = base->getAsSymbolNode();
assert(symbol);
inputArrayNodeResizeList.push_back(symbol);
if (symbol && builtInName(symbol->getName())) {
// make sure we have a user-modifiable copy of this built-in input array
TSymbol* input = symbolTable.find(symbol->getName());
if (input->isReadOnly()) {
input = symbolTable.copyUp(input);
inputArraySymbolResizeList.push_back(input);
return type.isArray() &&
((language == EShLangGeometry && type.getQualifier().storage == EvqVaryingIn) ||
(language == EShLangTessControl && type.getQualifier().storage == EvqVaryingOut && ! type.getQualifier().patch));
}
// Save it in the AST for linker use.
intermediate.addSymbolLinkageNode(linkage, *input);
// Handle a dereference of a geometry shader input array or tessellation control output array.
// See ioArrayNodeResizeList comment in ParseHelper.h.
//
void TParseContext::handleIoResizeArrayAccess(TSourceLoc loc, TIntermTyped* base)
{
TIntermSymbol* symbol = base->getAsSymbolNode();
assert(symbol);
ioArrayNodeResizeList.push_back(symbol);
if (symbol && builtInName(symbol->getName())) {
// make sure we have a user-modifiable copy of this built-in input array
TSymbol* arry = symbolTable.find(symbol->getName());
if (arry->isReadOnly()) {
arry = symbolTable.copyUp(arry);
// fix array size, if already implicitly size
if (arry->getType().getArraySize() == 0) {
int newSize = getIoArrayImplicitSize();
if (newSize) {
arry->getWritableType().changeArraySize(newSize);
symbol->getWritableType().changeArraySize(newSize);
}
}
ioArraySymbolResizeList.push_back(arry);
// Save it in the AST for linker use.
intermediate.addSymbolLinkageNode(linkage, *arry);
}
}
}
// If there has been an input primitive declaration, make sure all input array types
// If there has been an input primitive declaration (geometry shader) or an output
// number of vertices declaration(tessellation shader), make sure all input array types
// match it in size. Types come either from nodes in the AST or symbols in the
// symbol table.
//
// Types without an array size will be given one.
// Types already having a size that is wrong will get an error.
//
void TParseContext::checkInputArrayConsistency(TSourceLoc loc, bool tailOnly)
void TParseContext::checkIoArraysConsistency(TSourceLoc loc, bool tailOnly)
{
TLayoutGeometry primitive = intermediate.getInputPrimitive();
if (primitive == ElgNone)
int requiredSize = getIoArrayImplicitSize();
if (requiredSize == 0)
return;
const char* feature;
if (language == EShLangGeometry)
feature = TQualifier::getGeometryString(intermediate.getInputPrimitive());
else if (language == EShLangTessControl)
feature = "vertices";
if (tailOnly) {
checkInputArrayConsistency(loc, primitive, inputArraySymbolResizeList.back()->getWritableType(), inputArraySymbolResizeList.back()->getName());
checkIoArrayConsistency(loc, requiredSize, feature, ioArraySymbolResizeList.back()->getWritableType(), ioArraySymbolResizeList.back()->getName());
return;
}
for (size_t i = 0; i < inputArrayNodeResizeList.size(); ++i)
checkInputArrayConsistency(loc, primitive, inputArrayNodeResizeList[i]->getWritableType(), inputArrayNodeResizeList[i]->getName());
for (size_t i = 0; i < ioArrayNodeResizeList.size(); ++i)
checkIoArrayConsistency(loc, requiredSize, feature, ioArrayNodeResizeList[i]->getWritableType(), ioArrayNodeResizeList[i]->getName());
for (size_t i = 0; i < inputArraySymbolResizeList.size(); ++i)
checkInputArrayConsistency(loc, primitive, inputArraySymbolResizeList[i]->getWritableType(), inputArraySymbolResizeList[i]->getName());
for (size_t i = 0; i < ioArraySymbolResizeList.size(); ++i)
checkIoArrayConsistency(loc, requiredSize, feature, ioArraySymbolResizeList[i]->getWritableType(), ioArraySymbolResizeList[i]->getName());
}
void TParseContext::checkInputArrayConsistency(TSourceLoc loc, TLayoutGeometry primitive, TType& type, const TString& name)
int TParseContext::getIoArrayImplicitSize() const
{
int requiredSize = TQualifier::mapGeometryToSize(primitive);
if (language == EShLangGeometry)
return TQualifier::mapGeometryToSize(intermediate.getInputPrimitive());
else if (language == EShLangTessControl)
return intermediate.getVertices();
else
return 0;
}
void TParseContext::checkIoArrayConsistency(TSourceLoc loc, int requiredSize, const char* feature, TType& type, const TString& name)
{
if (type.getArraySize() == 0)
type.changeArraySize(requiredSize);
else if (type.getArraySize() != requiredSize)
error(loc, "inconsistent input primitive for array size", TQualifier::getGeometryString(primitive), name.c_str());
else if (type.getArraySize() != requiredSize) {
if (language == EShLangGeometry)
error(loc, "inconsistent input primitive for array size", feature, name.c_str());
else if (language == EShLangTessControl)
error(loc, "inconsistent output number of vertices for array size", feature, name.c_str());
else
assert(0);
}
}
//
@ -837,13 +879,31 @@ TIntermTyped* TParseContext::handleFunctionCall(TSourceLoc loc, TFunction* fnCal
if (op == EOpArrayLength) {
if (fnCall->getParamCount() > 0)
error(loc, "method does not accept any arguments", fnCall->getName().c_str(), "");
int length;
if (intermNode->getAsTyped() == 0 || ! intermNode->getAsTyped()->getType().isArray() || intermNode->getAsTyped()->getType().getArraySize() == 0) {
error(loc, "", fnCall->getName().c_str(), "array must be declared with a size before using this method");
length = 1;
int length = 0;
if (intermNode->getAsTyped() == 0 || ! intermNode->getAsTyped()->getType().isArray())
error(loc, "", fnCall->getName().c_str(), "can only be applied to an array");
else if (intermNode->getAsTyped()->getType().getArraySize() == 0) {
bool implicitlySized = false;
if (intermNode->getAsSymbolNode() && isIoResizeArray(intermNode->getAsTyped()->getType())) {
// We could be between a layout declaration that gives a built-in io array implicit size and
// a user redeclaration of that array, meaning we have to substitute its implicit size here
// without actually redeclaring the array. (It is an error to use a member before the
// redeclaration, but not an error to use the array name itself.)
const TString& name = intermNode->getAsSymbolNode()->getName();
if (name == "gl_in" || name == "gl_out")
length = getIoArrayImplicitSize();
}
if (length == 0) {
if (isIoResizeArray(intermNode->getAsTyped()->getType()))
error(loc, "", fnCall->getName().c_str(), "array must first be sized by a redeclaration or layout qualifier");
else
error(loc, "", fnCall->getName().c_str(), "array must be declared with a size before using this method");
}
} else
length = intermNode->getAsTyped()->getType().getArraySize();
if (length == 0)
length = 1;
TConstUnionArray unionArray(1);
unionArray[0].setIConst(length);
result = intermediate.addConstantUnion(unionArray, TType(EbtInt, EvqConst), loc);
@ -1986,10 +2046,9 @@ void TParseContext::declareArray(TSourceLoc loc, TString& identifier, const TTyp
symbolTable.insert(*symbol);
newDeclaration = true;
// Handle user geometry shader input arrays: see inputArrayNodeResizeList comment in ParseHelper.h
if (language == EShLangGeometry && type.getQualifier().storage == EvqVaryingIn && ! symbolTable.atBuiltInLevel()) {
inputArraySymbolResizeList.push_back(symbol);
checkInputArrayConsistency(loc, true);
if (! symbolTable.atBuiltInLevel() && isIoResizeArray(type)) {
ioArraySymbolResizeList.push_back(symbol);
checkIoArraysConsistency(loc, true);
}
return;
@ -2016,8 +2075,8 @@ void TParseContext::declareArray(TSourceLoc loc, TString& identifier, const TTyp
return;
}
if (newType.getArraySize() > 0) {
// be more leniant for input arrays to geometry shaders, where the redeclaration is the same size
if (! (language == EShLangGeometry && type.getQualifier().storage == EvqVaryingIn && newType.getArraySize() == type.getArraySize()))
// be more leniant for input arrays to geometry shaders and tessellation control outputs, where the redeclaration is the same size
if (! (isIoResizeArray(type) && newType.getArraySize() == type.getArraySize()))
error(loc, "redeclaration of array with size", identifier.c_str(), "");
return;
}
@ -2031,8 +2090,8 @@ void TParseContext::declareArray(TSourceLoc loc, TString& identifier, const TTyp
newType.shareArraySizes(type);
if (language == EShLangGeometry && type.getQualifier().storage == EvqVaryingIn)
checkInputArrayConsistency(loc);
if (isIoResizeArray(type))
checkIoArraysConsistency(loc);
}
void TParseContext::updateMaxArraySize(TSourceLoc loc, TIntermNode *node, int index)
@ -2064,9 +2123,8 @@ void TParseContext::updateMaxArraySize(TSourceLoc loc, TIntermNode *node, int in
if (symbol->isReadOnly()) {
symbol = symbolTable.copyUp(symbol);
// Handle geometry shader input arrays: see inputArrayNodeResizeList comment in ParseHelper.h
if (language == EShLangGeometry && symbol->getType().getQualifier().storage == EvqVaryingIn)
inputArraySymbolResizeList.push_back(symbol);
if (isIoResizeArray(symbol->getType()))
ioArraySymbolResizeList.push_back(symbol);
// Save it in the AST for linker use.
intermediate.addSymbolLinkageNode(linkage, *symbol);
@ -2128,16 +2186,15 @@ TSymbol* TParseContext::redeclareBuiltinVariable(TSourceLoc loc, const TString&
return 0;
// If it wasn't at a built-in level, then it's already been redeclared;
// that is, this is a redeclaration of a redeclaration, reuse that initial
// that is, this is a redeclaration of a redeclaration; reuse that initial
// redeclaration. Otherwise, make the new one.
if (builtIn) {
// Copy the symbol up to make a writable version
newDeclaration = true;
symbol = symbolTable.copyUp(symbol);
// Handle geometry shader input arrays: see inputArrayNodeResizeList comment in ParseHelper.h
if (language == EShLangGeometry && symbol->getType().getQualifier().storage == EvqVaryingIn && symbol->getType().isArray())
inputArraySymbolResizeList.push_back(symbol);
if (isIoResizeArray(symbol->getType()))
ioArraySymbolResizeList.push_back(symbol);
// Save it in the AST for linker use.
intermediate.addSymbolLinkageNode(linkage, *symbol);
@ -2248,10 +2305,6 @@ void TParseContext::redeclareBuiltinBlock(TSourceLoc loc, TTypeList& newTypeList
return;
}
// Handle geometry shader input arrays: see inputArrayNodeResizeList comment in ParseHelper.h
if (language == EShLangGeometry && block->getType().isArray() && block->getType().getQualifier().storage == EvqVaryingIn)
inputArraySymbolResizeList.push_back(block);
// Edit and error check the container against the redeclaration
// - remove unused members
// - ensure remaining qualifiers/types match
@ -2320,12 +2373,20 @@ void TParseContext::redeclareBuiltinBlock(TSourceLoc loc, TTypeList& newTypeList
error(loc, "cannot change arrayness of redeclared block", blockName.c_str(), "");
else if (type.isArray() && type.getArraySize() > 0 && type.getArraySize() != arraySizes->getSize())
error(loc, "cannot change array size of redeclared block", blockName.c_str(), "");
else if (type.isArray() && type.getArraySize() == 0 && arraySizes->getSize() > 0)
type.changeArraySize(arraySizes->getSize());
symbolTable.insert(*block);
// Check for general layout qualifier errors
layoutTypeCheck(loc, *block);
// Tracking for implicit sizing of array
if (isIoResizeArray(block->getType())) {
ioArraySymbolResizeList.push_back(block);
checkIoArraysConsistency(loc, true);
}
// Save it in the AST for linker use.
intermediate.addSymbolLinkageNode(linkage, *block);
}
@ -2728,8 +2789,6 @@ void TParseContext::setLayoutQualifier(TSourceLoc loc, TPublicType& publicType,
case EShLangTessControl:
if (id == "vertices") {
// TODO: tessellation: implement gl_out[] array sizing based on this
// TODO: tessellation: semantic check this is on the out qualifier only
publicType.shaderQualifiers.vertices = value;
return;
}
@ -2932,8 +2991,14 @@ void TParseContext::checkNoShaderLayouts(TSourceLoc loc, const TShaderQualifiers
error(loc, message, TQualifier::getGeometryString(shaderQualifiers.geometry), "");
if (shaderQualifiers.invocations > 0)
error(loc, message, "invocations", "");
if (shaderQualifiers.vertices > 0)
error(loc, message, "max_vertices", "");
if (shaderQualifiers.vertices > 0) {
if (language == EShLangGeometry)
error(loc, message, "max_vertices", "");
else if (language == EShLangTessControl)
error(loc, message, "vertices", "");
else
assert(0);
}
}
//
@ -3726,8 +3791,15 @@ void TParseContext::updateStandaloneQualifierDefaults(TSourceLoc loc, const TPub
if (! intermediate.setVertices(publicType.shaderQualifiers.vertices)) {
if (language == EShLangGeometry)
error(loc, "cannot change previously set layout value", "max_vertices", "");
else
else if (language == EShLangTessControl)
error(loc, "cannot change previously set layout value", "vertices", "");
else
assert(0);
} else if (language == EShLangTessControl) {
if (publicType.qualifier.storage != EvqVaryingOut)
error(loc, "can only apply to 'out'", "vertices", "");
else
checkIoArraysConsistency(loc);
}
}
if (publicType.shaderQualifiers.invocations) {
@ -3744,9 +3816,10 @@ void TParseContext::updateStandaloneQualifierDefaults(TSourceLoc loc, const TPub
case ElgTrianglesAdjacency:
case ElgQuads:
case ElgIsolines:
if (intermediate.setInputPrimitive(publicType.shaderQualifiers.geometry))
checkInputArrayConsistency(loc);
else
if (intermediate.setInputPrimitive(publicType.shaderQualifiers.geometry)) {
if (language == EShLangGeometry)
checkIoArraysConsistency(loc);
} else
error(loc, "cannot change previously set input primitive", TQualifier::getGeometryString(publicType.shaderQualifiers.geometry), "");
break;
default:
@ -3761,7 +3834,7 @@ void TParseContext::updateStandaloneQualifierDefaults(TSourceLoc loc, const TPub
error(loc, "cannot change previously set output primitive", TQualifier::getGeometryString(publicType.shaderQualifiers.geometry), "");
break;
default:
error(loc, "does not only apply to output", TQualifier::getGeometryString(publicType.shaderQualifiers.geometry), "");
error(loc, "does not apply to output", TQualifier::getGeometryString(publicType.shaderQualifiers.geometry), "");
}
} else
error(loc, "cannot be used here", TQualifier::getGeometryString(publicType.shaderQualifiers.geometry), "");

29
glslang/MachineIndependent/ParseHelper.h
View File

@ -84,9 +84,13 @@ public:
TIntermTyped* handleBracketDereference(TSourceLoc, TIntermTyped* base, TIntermTyped* index);
void checkIndex(TSourceLoc, const TType&, int& index);
void handleIndexLimits(TSourceLoc, TIntermTyped* base, TIntermTyped* index);
void handleInputArrayAccess(TSourceLoc, TIntermTyped* base);
void checkInputArrayConsistency(TSourceLoc, bool tailOnly = false);
void checkInputArrayConsistency(TSourceLoc, TLayoutGeometry, TType&, const TString&);
bool isIoResizeArray(const TType&);
void handleIoResizeArrayAccess(TSourceLoc, TIntermTyped* base);
void checkIoArraysConsistency(TSourceLoc, bool tailOnly = false);
int getIoArrayImplicitSize() const;
void checkIoArrayConsistency(TSourceLoc, int requiredSize, const char* feature, TType&, const TString&);
TIntermTyped* handleDotDereference(TSourceLoc, TIntermTyped* base, TString& field);
TFunction* handleFunctionDeclarator(TSourceLoc loc, TFunction& function, bool prototype);
TIntermAggregate* handleFunctionDefinition(TSourceLoc, TFunction&);
@ -257,6 +261,11 @@ protected:
//
// Geometry shader input arrays:
// - array sizing is based on input primitive and/or explicit size
//
// Tessellation control output arrays:
// - array sizing is based on output layout(vertices=...) and/or explicit size
//
// Both:
// - array sizing is retroactive
// - built-in block redeclarations interact with this
//
@ -270,23 +279,23 @@ protected:
// - the resize-list starts empty at beginning of user-shader compilation, it does
// not have built-ins in it
//
// - on built-in input array use: copy-up symbol and add both the symbol and
// - on built-in array use: copy-up symbol and add both the symbol and
// its use to resize-list
//
// - on user-input array declaration: add it to the resize-list
// - on user array declaration: add it to the resize-list
//
// - on block redeclaration: copy-up symbol and add it to the resize-list
// * note, that appropriately gives an error if redeclaring a block that
// was already used and hence already copied-up
//
// - on seeing an input primitive-layout declaration, fix everything in the resize-list,
// giving errors for mismatch
// - on seeing a layout declaration that sizes the array, fix everything in the
// resize-list, giving errors for mismatch
//
// - on seeing an array size declaration, give errors on mismatch between it and previous
// input primitive declarations
// array-sizing declarations
//
TVector<TIntermSymbol*> inputArrayNodeResizeList;
TVector<TSymbol*> inputArraySymbolResizeList;
TVector<TIntermSymbol*> ioArrayNodeResizeList;
TVector<TSymbol*> ioArraySymbolResizeList;
};
} // end namespace glslang

22
glslang/MachineIndependent/linkValidate.cpp
View File

@ -88,8 +88,14 @@ void TIntermediate::merge(TInfoSink& infoSink, TIntermediate& unit)
if (vertices == 0)
vertices = unit.vertices;
else if (vertices != unit.vertices)
error(infoSink, "Contradictory layout max_vertices values");
else if (vertices != unit.vertices) {
if (language == EShLangGeometry)
error(infoSink, "Contradictory layout max_vertices values");
else if (language == EShLangTessControl)
error(infoSink, "Contradictory layout vertices values");
else
assert(0);
}
if (vertexSpacing == EvsNone)
vertexSpacing = unit.vertexSpacing;
@ -297,11 +303,14 @@ void TIntermediate::finalCheck(TInfoSink& infoSink)
switch (language) {
case EShLangVertex:
break;
case EShLangTessControl:
if (vertices == 0)
error(infoSink, "At least one shader must specify an output layout(vertices=...)");
break;
case EShLangTessEvaluation:
if (inputPrimitive == ElgNone)
error(infoSink, "At least one tessellation shader must specify an input layout primitive");
error(infoSink, "At least one shader must specify an input layout primitive");
if (vertexSpacing == EvsNone)
vertexSpacing = EvsEqual;
if (vertexOrder == EvoNone)
@ -309,13 +318,14 @@ void TIntermediate::finalCheck(TInfoSink& infoSink)
break;
case EShLangGeometry:
if (inputPrimitive == ElgNone)
error(infoSink, "At least one geometry shader must specify an input layout primitive");
error(infoSink, "At least one shader must specify an input layout primitive");
if (outputPrimitive == ElgNone)
error(infoSink, "At least one geometry shader must specify an output layout primitive");
error(infoSink, "At least one shader must specify an output layout primitive");
if (vertices == 0)
error(infoSink, "At least one geometry shader must specify a layout(max_vertices = value)");
error(infoSink, "At least one shader must specify a layout(max_vertices = value)");
break;
case EShLangFragment:
break;
case EShLangCompute:
break;
}

1
glslang/MachineIndependent/localintermediate.h
View File

@ -129,6 +129,7 @@ public:
vertices = m;
return true;
}
int getVertices() const { return vertices; }
bool setInputPrimitive(TLayoutGeometry p)
{
if (inputPrimitive != ElgNone)