class GrGLSLShaderVar : public GrShaderVar {
public:
/**
- * See GL_ARB_fragment_coord_conventions.
- */
- enum Origin {
- kDefault_Origin, // when set to kDefault the origin field is ignored.
- kUpperLeft_Origin, // only used to declare vec4 in gl_FragCoord.
- };
-
- /**
* Defaults to a float with no precision specifier
*/
GrGLSLShaderVar()
: GrShaderVar()
- , fOrigin(kDefault_Origin)
, fUseUniformFloatArrays(USE_UNIFORM_FLOAT_ARRAYS) {
}
GrGLSLShaderVar(const char* name, GrSLType type, int arrayCount = kNonArray,
GrSLPrecision precision = kDefault_GrSLPrecision)
: GrShaderVar(name, type, arrayCount, precision)
- , fOrigin(kDefault_Origin)
, fUseUniformFloatArrays(USE_UNIFORM_FLOAT_ARRAYS) {
SkASSERT(kVoid_GrSLType != type);
- fOrigin = kDefault_Origin;
fUseUniformFloatArrays = USE_UNIFORM_FLOAT_ARRAYS;
}
GrGLSLShaderVar(const char* name, GrSLType type, TypeModifier typeModifier,
int arrayCount = kNonArray, GrSLPrecision precision = kDefault_GrSLPrecision)
: GrShaderVar(name, type, typeModifier, arrayCount, precision)
- , fOrigin(kDefault_Origin)
, fUseUniformFloatArrays(USE_UNIFORM_FLOAT_ARRAYS) {
SkASSERT(kVoid_GrSLType != type);
}
GrGLSLShaderVar(const GrShaderVar& var)
: GrShaderVar(var)
- , fOrigin(kDefault_Origin)
, fUseUniformFloatArrays(USE_UNIFORM_FLOAT_ARRAYS) {
SkASSERT(kVoid_GrSLType != var.getType());
}
GrGLSLShaderVar(const GrGLSLShaderVar& var)
: GrShaderVar(var.c_str(), var.getType(), var.getTypeModifier(),
var.getArrayCount(), var.getPrecision())
- , fOrigin(var.fOrigin)
, fUseUniformFloatArrays(var.fUseUniformFloatArrays) {
SkASSERT(kVoid_GrSLType != var.getType());
}
TypeModifier typeModifier,
const SkString& name,
GrSLPrecision precision = kDefault_GrSLPrecision,
- Origin origin = kDefault_Origin,
+ const char* layoutQualifier = nullptr,
bool useUniformFloatArrays = USE_UNIFORM_FLOAT_ARRAYS) {
SkASSERT(kVoid_GrSLType != type);
SkASSERT(kDefault_GrSLPrecision == precision || GrSLTypeIsFloatType(type));
INHERITED::set(type, name, typeModifier, precision);
- fOrigin = origin;
+ fLayoutQualifier = layoutQualifier;
fUseUniformFloatArrays = useUniformFloatArrays;
}
TypeModifier typeModifier,
const char* name,
GrSLPrecision precision = kDefault_GrSLPrecision,
- Origin origin = kDefault_Origin,
+ const char* layoutQualifier = nullptr,
bool useUniformFloatArrays = USE_UNIFORM_FLOAT_ARRAYS) {
SkASSERT(kVoid_GrSLType != type);
SkASSERT(kDefault_GrSLPrecision == precision || GrSLTypeIsFloatType(type));
INHERITED::set(type, name, typeModifier, precision);
- fOrigin = origin;
+ fLayoutQualifier = layoutQualifier;
fUseUniformFloatArrays = useUniformFloatArrays;
}
const SkString& name,
int count,
GrSLPrecision precision = kDefault_GrSLPrecision,
- Origin origin = kDefault_Origin,
+ const char* layoutQualifier = nullptr,
bool useUniformFloatArrays = USE_UNIFORM_FLOAT_ARRAYS) {
SkASSERT(kVoid_GrSLType != type);
SkASSERT(kDefault_GrSLPrecision == precision || GrSLTypeIsFloatType(type));
INHERITED::set(type, name, typeModifier, precision, count);
- fOrigin = origin;
+ fLayoutQualifier = layoutQualifier;
fUseUniformFloatArrays = useUniformFloatArrays;
}
const char* name,
int count,
GrSLPrecision precision = kDefault_GrSLPrecision,
- Origin origin = kDefault_Origin,
+ const char* layoutQualifier = nullptr,
bool useUniformFloatArrays = USE_UNIFORM_FLOAT_ARRAYS) {
SkASSERT(kVoid_GrSLType != type);
SkASSERT(kDefault_GrSLPrecision == precision || GrSLTypeIsFloatType(type));
INHERITED::set(type, name, typeModifier, precision, count);
- fOrigin = origin;
+ fLayoutQualifier = layoutQualifier;
fUseUniformFloatArrays = useUniformFloatArrays;
}
/**
- * Get the origin of the var
- */
- Origin getOrigin() const { return fOrigin; }
-
- /**
- * Set the origin of the var
- */
- void setOrigin(Origin origin) { fOrigin = origin; }
-
- /**
* Write a declaration of this variable to out.
*/
void appendDecl(const GrGLSLCaps* glslCaps, SkString* out) const {
SkASSERT(kDefault_GrSLPrecision == fPrecision || GrSLTypeIsFloatType(fType));
- if (kUpperLeft_Origin == fOrigin) {
- // this is the only place where we specify a layout modifier. If we use other layout
- // modifiers in the future then they should be placed in a list.
- out->append("layout(origin_upper_left) ");
+ if (!fLayoutQualifier.isEmpty()) {
+ out->appendf("layout(%s) ", fLayoutQualifier.c_str());
}
if (this->getTypeModifier() != kNone_TypeModifier) {
out->append(TypeModifierString(glslCaps, this->getTypeModifier()));
}
}
- Origin fOrigin;
/// Work around driver bugs on some hardware that don't correctly
/// support uniform float []
bool fUseUniformFloatArrays;
+ SkString fLayoutQualifier;
+
typedef GrShaderVar INHERITED;
};