uint32_t GrGLProgramEffects::GenAttribKey(const GrDrawEffect& drawEffect) {
uint32_t key = 0;
int numAttributes = drawEffect.getVertexAttribIndexCount();
SkASSERT(numAttributes <= 2);
const int* attributeIndices = drawEffect.getVertexAttribIndices();
for (int a = 0; a < numAttributes; ++a) {
uint32_t value = attributeIndices[a] << 3 * a;
SkASSERT(0 == (value & key)); // keys for each attribute ought not to overlap
key |= value;
}
return key;
}
GrGLEffect::EffectKey GrGLEffect::GenAttribKey(const GrDrawEffect& drawEffect) {
EffectKey key = 0;
int numAttributes = drawEffect.getVertexAttribIndexCount();
GrAssert(numAttributes <= 2);
const int* attributeIndices = drawEffect.getVertexAttribIndices();
for (int index = 0; index < numAttributes; ++index) {
EffectKey value = attributeIndices[index] << 3*index;
GrAssert(0 == (value & key)); // keys for each attribute ought not to overlap
key |= value;
}
return key;
}
