2c3398dc26
Change-Id: I03f4a3affd6dda7a83bee8eec768dcaa93a6b801 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/220534 Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Greg Daniel <egdaniel@google.com>
99 lines
4.0 KiB
C++
99 lines
4.0 KiB
C++
/*
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* Copyright 2014 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "src/gpu/GrPrimitiveProcessor.h"
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#include "src/gpu/GrCoordTransform.h"
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/**
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* We specialize the vertex code for each of these matrix types.
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*/
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enum MatrixType {
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kNoPersp_MatrixType = 0,
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kGeneral_MatrixType = 1,
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};
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GrPrimitiveProcessor::GrPrimitiveProcessor(ClassID classID) : GrProcessor(classID) {}
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const GrPrimitiveProcessor::TextureSampler& GrPrimitiveProcessor::textureSampler(int i) const {
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SkASSERT(i >= 0 && i < this->numTextureSamplers());
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return this->onTextureSampler(i);
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}
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uint32_t
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GrPrimitiveProcessor::getTransformKey(const SkTArray<const GrCoordTransform*, true>& coords,
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int numCoords) const {
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uint32_t totalKey = 0;
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for (int t = 0; t < numCoords; ++t) {
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uint32_t key = 0;
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const GrCoordTransform* coordTransform = coords[t];
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if (coordTransform->getMatrix().hasPerspective()) {
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key |= kGeneral_MatrixType;
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} else {
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key |= kNoPersp_MatrixType;
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}
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key <<= t;
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SkASSERT(0 == (totalKey & key)); // keys for each transform ought not to overlap
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totalKey |= key;
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}
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return totalKey;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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static inline GrSamplerState::Filter clamp_filter(GrTextureType type,
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GrSamplerState::Filter requestedFilter) {
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if (GrTextureTypeHasRestrictedSampling(type)) {
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return SkTMin(requestedFilter, GrSamplerState::Filter::kBilerp);
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}
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return requestedFilter;
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}
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GrPrimitiveProcessor::TextureSampler::TextureSampler(GrTextureType textureType,
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GrPixelConfig config,
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const GrSamplerState& samplerState,
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const GrSwizzle& swizzle,
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uint32_t extraSamplerKey) {
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this->reset(textureType, config, samplerState, swizzle, extraSamplerKey);
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}
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GrPrimitiveProcessor::TextureSampler::TextureSampler(GrTextureType textureType,
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GrPixelConfig config,
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GrSamplerState::Filter filterMode,
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GrSamplerState::WrapMode wrapXAndY,
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const GrSwizzle& swizzle) {
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this->reset(textureType, config, filterMode, wrapXAndY, swizzle);
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}
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void GrPrimitiveProcessor::TextureSampler::reset(GrTextureType textureType,
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GrPixelConfig config,
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const GrSamplerState& samplerState,
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const GrSwizzle& swizzle,
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uint32_t extraSamplerKey) {
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SkASSERT(kUnknown_GrPixelConfig != config);
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fSamplerState = samplerState;
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fSamplerState.setFilterMode(clamp_filter(textureType, samplerState.filter()));
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fSwizzle = swizzle;
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fTextureType = textureType;
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fConfig = config;
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fExtraSamplerKey = extraSamplerKey;
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SkASSERT(!fExtraSamplerKey || textureType == GrTextureType::kExternal);
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}
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void GrPrimitiveProcessor::TextureSampler::reset(GrTextureType textureType,
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GrPixelConfig config,
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GrSamplerState::Filter filterMode,
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GrSamplerState::WrapMode wrapXAndY,
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const GrSwizzle& swizzle) {
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SkASSERT(kUnknown_GrPixelConfig != config);
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filterMode = clamp_filter(textureType, filterMode);
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fSamplerState = GrSamplerState(wrapXAndY, filterMode);
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fSwizzle = swizzle;
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fTextureType = textureType;
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fConfig = config;
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}
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