/* * Copyright 2014 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "src/gpu/GrPrimitiveProcessor.h" #include "src/gpu/GrCoordTransform.h" /** * We specialize the vertex code for each of these matrix types. */ enum MatrixType { kNoPersp_MatrixType = 0, kGeneral_MatrixType = 1, }; GrPrimitiveProcessor::GrPrimitiveProcessor(ClassID classID) : GrProcessor(classID) {} const GrPrimitiveProcessor::TextureSampler& GrPrimitiveProcessor::textureSampler(int i) const { SkASSERT(i >= 0 && i < this->numTextureSamplers()); return this->onTextureSampler(i); } uint32_t GrPrimitiveProcessor::getTransformKey(const SkTArray& coords, int numCoords) const { uint32_t totalKey = 0; for (int t = 0; t < numCoords; ++t) { uint32_t key = 0; const GrCoordTransform* coordTransform = coords[t]; if (coordTransform->getMatrix().hasPerspective()) { key |= kGeneral_MatrixType; } else { key |= kNoPersp_MatrixType; } key <<= t; SkASSERT(0 == (totalKey & key)); // keys for each transform ought not to overlap totalKey |= key; } return totalKey; } /////////////////////////////////////////////////////////////////////////////////////////////////// static inline GrSamplerState::Filter clamp_filter(GrTextureType type, GrSamplerState::Filter requestedFilter) { if (GrTextureTypeHasRestrictedSampling(type)) { return SkTMin(requestedFilter, GrSamplerState::Filter::kBilerp); } return requestedFilter; } GrPrimitiveProcessor::TextureSampler::TextureSampler(GrTextureType textureType, GrPixelConfig config, const GrSamplerState& samplerState, const GrSwizzle& swizzle, uint32_t extraSamplerKey) { this->reset(textureType, config, samplerState, swizzle, extraSamplerKey); } GrPrimitiveProcessor::TextureSampler::TextureSampler(GrTextureType textureType, GrPixelConfig config, GrSamplerState::Filter filterMode, GrSamplerState::WrapMode wrapXAndY, const GrSwizzle& swizzle) { this->reset(textureType, config, filterMode, wrapXAndY, swizzle); } void GrPrimitiveProcessor::TextureSampler::reset(GrTextureType textureType, GrPixelConfig config, const GrSamplerState& samplerState, const GrSwizzle& swizzle, uint32_t extraSamplerKey) { SkASSERT(kUnknown_GrPixelConfig != config); fSamplerState = samplerState; fSamplerState.setFilterMode(clamp_filter(textureType, samplerState.filter())); fSwizzle = swizzle; fTextureType = textureType; fConfig = config; fExtraSamplerKey = extraSamplerKey; SkASSERT(!fExtraSamplerKey || textureType == GrTextureType::kExternal); } void GrPrimitiveProcessor::TextureSampler::reset(GrTextureType textureType, GrPixelConfig config, GrSamplerState::Filter filterMode, GrSamplerState::WrapMode wrapXAndY, const GrSwizzle& swizzle) { SkASSERT(kUnknown_GrPixelConfig != config); filterMode = clamp_filter(textureType, filterMode); fSamplerState = GrSamplerState(wrapXAndY, filterMode); fSwizzle = swizzle; fTextureType = textureType; fConfig = config; }