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authorGravatar egdaniel <egdaniel@google.com>2015-11-06 06:57:12 -0800
committerGravatar Commit bot <commit-bot@chromium.org>2015-11-06 06:57:12 -0800
commitf3bace939287ca7bb02eaeb38ab51939d7e1ae98 (patch)
tree3d53664dc0fae8509d3577015ebaed95e36c92da /src/gpu
parentcf1d19805a289c612532cf2d4505bb348b78ba77 (diff)
Add addFragPosUniform to GrGLrogramBuilder
Diffstat (limited to 'src/gpu')
-rw-r--r--src/gpu/gl/builders/GrGLFragmentShaderBuilder.cpp12
-rw-r--r--src/gpu/gl/builders/GrGLProgramBuilder.cpp10
-rw-r--r--src/gpu/gl/builders/GrGLProgramBuilder.h63
3 files changed, 47 insertions, 38 deletions
diff --git a/src/gpu/gl/builders/GrGLFragmentShaderBuilder.cpp b/src/gpu/gl/builders/GrGLFragmentShaderBuilder.cpp
index eea8850f8f..d06c2f3488 100644
--- a/src/gpu/gl/builders/GrGLFragmentShaderBuilder.cpp
+++ b/src/gpu/gl/builders/GrGLFragmentShaderBuilder.cpp
@@ -143,17 +143,15 @@ const char* GrGLFragmentShaderBuilder::fragmentPosition() {
static const char* kTempName = "tmpXYFragCoord";
static const char* kCoordName = "fragCoordYDown";
if (!fSetupFragPosition) {
- // temporarily change the stage index because we're inserting non-stage code.
- GrGLProgramBuilder::AutoStageRestore asr(fProgramBuilder);
SkASSERT(!fProgramBuilder->fUniformHandles.fRTHeightUni.isValid());
const char* rtHeightName;
fProgramBuilder->fUniformHandles.fRTHeightUni =
- fProgramBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
- kFloat_GrSLType,
- kDefault_GrSLPrecision,
- "RTHeight",
- &rtHeightName);
+ fProgramBuilder->addFragPosUniform(GrGLProgramBuilder::kFragment_Visibility,
+ kFloat_GrSLType,
+ kDefault_GrSLPrecision,
+ "RTHeight",
+ &rtHeightName);
// The Adreno compiler seems to be very touchy about access to "gl_FragCoord".
// Accessing glFragCoord.zw can cause a program to fail to link. Additionally,
diff --git a/src/gpu/gl/builders/GrGLProgramBuilder.cpp b/src/gpu/gl/builders/GrGLProgramBuilder.cpp
index aca8e53f85..232c7ba0c2 100644
--- a/src/gpu/gl/builders/GrGLProgramBuilder.cpp
+++ b/src/gpu/gl/builders/GrGLProgramBuilder.cpp
@@ -56,7 +56,6 @@ GrGLProgramBuilder::GrGLProgramBuilder(GrGLGpu* gpu, const DrawArgs& args)
: fVS(this)
, fGS(this)
, fFS(this, args.fDesc->header().fFragPosKey)
- , fOutOfStage(true)
, fStageIndex(-1)
, fGeometryProcessor(nullptr)
, fXferProcessor(nullptr)
@@ -107,13 +106,13 @@ GrGLProgramBuilder::SeparableVaryingHandle GrGLProgramBuilder::addSeparableVaryi
return SeparableVaryingHandle(varyingInfo.fLocation);
}
-void GrGLProgramBuilder::nameVariable(SkString* out, char prefix, const char* name) {
+void GrGLProgramBuilder::nameVariable(SkString* out, char prefix, const char* name, bool mangle) {
if ('\0' == prefix) {
*out = name;
} else {
out->printf("%c%s", prefix, name);
}
- if (!fOutOfStage) {
+ if (mangle) {
if (out->endsWith('_')) {
// Names containing "__" are reserved.
out->append("x");
@@ -122,11 +121,12 @@ void GrGLProgramBuilder::nameVariable(SkString* out, char prefix, const char* na
}
}
-GrGLSLProgramDataManager::UniformHandle GrGLProgramBuilder::addUniformArray(
+GrGLSLProgramDataManager::UniformHandle GrGLProgramBuilder::internalAddUniformArray(
uint32_t visibility,
GrSLType type,
GrSLPrecision precision,
const char* name,
+ bool mangleName,
int count,
const char** outName) {
SkASSERT(name && strlen(name));
@@ -148,7 +148,7 @@ GrGLSLProgramDataManager::UniformHandle GrGLProgramBuilder::addUniformArray(
if ('u' == name[0]) {
prefix = '\0';
}
- this->nameVariable(uni.fVariable.accessName(), prefix, name);
+ this->nameVariable(uni.fVariable.accessName(), prefix, name, mangleName);
uni.fVariable.setArrayCount(count);
uni.fVisibility = visibility;
uni.fVariable.setPrecision(precision);
diff --git a/src/gpu/gl/builders/GrGLProgramBuilder.h b/src/gpu/gl/builders/GrGLProgramBuilder.h
index e1525c42ef..3ec66cb611 100644
--- a/src/gpu/gl/builders/GrGLProgramBuilder.h
+++ b/src/gpu/gl/builders/GrGLProgramBuilder.h
@@ -68,7 +68,11 @@ public:
GrSLPrecision precision,
const char* name,
int arrayCount,
- const char** outName = nullptr) = 0;
+ const char** outName = nullptr) {
+ return this->internalAddUniformArray(visibility, type, precision, name, true, arrayCount,
+ outName);
+ }
+
virtual const GrGLSLShaderVar& getUniformVariable(UniformHandle u) const = 0;
@@ -86,6 +90,15 @@ public:
/*
* *NOTE* NO MEMBERS ALLOWED, MULTIPLE INHERITANCE
*/
+private:
+ virtual UniformHandle internalAddUniformArray(
+ uint32_t visibility,
+ GrSLType type,
+ GrSLPrecision precision,
+ const char* name,
+ bool mangleName,
+ int arrayCount,
+ const char** outName) = 0;
};
// TODO move this into GrGLGPBuilder and move them both out of this file
@@ -239,13 +252,6 @@ public:
*/
static GrGLProgram* CreateProgram(const DrawArgs&, GrGLGpu*);
- UniformHandle addUniformArray(uint32_t visibility,
- GrSLType type,
- GrSLPrecision precision,
- const char* name,
- int arrayCount,
- const char** outName) override;
-
const GrGLSLShaderVar& getUniformVariable(UniformHandle u) const override {
return fUniforms[u.toIndex()].fVariable;
}
@@ -298,10 +304,29 @@ protected:
const GrProgramDesc& desc() const { return *fArgs.fDesc; }
const GrProgramDesc::KeyHeader& header() const { return fArgs.fDesc->header(); }
+ UniformHandle internalAddUniformArray(uint32_t visibility,
+ GrSLType type,
+ GrSLPrecision precision,
+ const char* name,
+ bool mangleName,
+ int arrayCount,
+ const char** outName) override;
+
+ // Used to add a uniform for frag position without mangling the name of the uniform inside of a
+ // stage.
+ UniformHandle addFragPosUniform(uint32_t visibility,
+ GrSLType type,
+ GrSLPrecision precision,
+ const char* name,
+ const char** outName) {
+ SkDebugf("in my frag pos thing\n");
+ return this->internalAddUniformArray(visibility, type, precision, name, false, 0, outName);
+ }
+
// Generates a name for a variable. The generated string will be name prefixed by the prefix
- // char (unless the prefix is '\0'). It also mangles the name to be stage-specific if we're
- // generating stage code.
- void nameVariable(SkString* out, char prefix, const char* name);
+ // char (unless the prefix is '\0'). It also will mangle the name to be stage-specific unless
+ // explicitly asked not to.
+ void nameVariable(SkString* out, char prefix, const char* name, bool mangle = true);
// Generates a possibly mangled name for a stage variable and writes it to the fragment shader.
// If GrGLSLExpr4 has a valid name then it will use that instead
void nameExpression(GrGLSLExpr4*, const char* baseName);
@@ -356,22 +381,11 @@ protected:
// stage offset for variable name mangling, and also ensures verfication variables in the
// fragment shader are cleared.
void reset() {
- this->enterStage();
this->addStage();
fFS.reset();
}
void addStage() { fStageIndex++; }
- // This simple class exits the stage and then restores the stage when it goes out of scope
- class AutoStageRestore {
- public:
- AutoStageRestore(GrGLProgramBuilder* pb)
- : fPB(pb), fOutOfStage(pb->fOutOfStage) { pb->exitStage(); }
- ~AutoStageRestore() { fPB->fOutOfStage = fOutOfStage; }
- private:
- GrGLProgramBuilder* fPB;
- bool fOutOfStage;
- };
class AutoStageAdvance {
public:
AutoStageAdvance(GrGLProgramBuilder* pb)
@@ -380,12 +394,10 @@ protected:
// Each output to the fragment processor gets its own code section
fPB->fFS.nextStage();
}
- ~AutoStageAdvance() { fPB->exitStage(); }
+ ~AutoStageAdvance() {}
private:
GrGLProgramBuilder* fPB;
};
- void exitStage() { fOutOfStage = true; }
- void enterStage() { fOutOfStage = false; }
int stageIndex() const { return fStageIndex; }
const char* rtAdjustment() const { return "rtAdjustment"; }
@@ -397,7 +409,6 @@ protected:
GrGLVertexBuilder fVS;
GrGLGeometryBuilder fGS;
GrGLFragmentShaderBuilder fFS;
- bool fOutOfStage;
int fStageIndex;
GrGLInstalledGeoProc* fGeometryProcessor;