111 lines
3.1 KiB
C++
111 lines
3.1 KiB
C++
/*
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* Copyright 2015 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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#ifndef GrTextureParams_DEFINED
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#define GrTextureParams_DEFINED
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#include "GrTypes.h"
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#include "SkShader.h"
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/**
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* Represents the filtering and tile modes used to access a texture.
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*/
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class GrTextureParams {
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public:
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static const GrTextureParams& ClampNoFilter() {
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static const GrTextureParams gParams;
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return gParams;
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}
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static const GrTextureParams& ClampBilerp() {
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static const GrTextureParams gParams(SkShader::kClamp_TileMode, kBilerp_FilterMode);
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return gParams;
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}
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GrTextureParams() {
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this->reset();
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}
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enum FilterMode {
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kNone_FilterMode,
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kBilerp_FilterMode,
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kMipMap_FilterMode
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};
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GrTextureParams(SkShader::TileMode tileXAndY, FilterMode filterMode) {
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this->reset(tileXAndY, filterMode);
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}
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GrTextureParams(const SkShader::TileMode tileModes[2], FilterMode filterMode) {
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this->reset(tileModes, filterMode);
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}
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GrTextureParams(const GrTextureParams& params) {
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*this = params;
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}
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GrTextureParams& operator= (const GrTextureParams& params) {
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fTileModes[0] = params.fTileModes[0];
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fTileModes[1] = params.fTileModes[1];
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fFilterMode = params.fFilterMode;
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return *this;
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}
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void reset() {
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this->reset(SkShader::kClamp_TileMode, kNone_FilterMode);
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}
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void reset(SkShader::TileMode tileXAndY, FilterMode filterMode) {
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fTileModes[0] = fTileModes[1] = tileXAndY;
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fFilterMode = filterMode;
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}
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void reset(const SkShader::TileMode tileModes[2], FilterMode filterMode) {
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fTileModes[0] = tileModes[0];
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fTileModes[1] = tileModes[1];
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fFilterMode = filterMode;
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}
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void setClampNoFilter() {
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fTileModes[0] = fTileModes[1] = SkShader::kClamp_TileMode;
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fFilterMode = kNone_FilterMode;
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}
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void setClamp() {
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fTileModes[0] = fTileModes[1] = SkShader::kClamp_TileMode;
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}
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void setFilterMode(FilterMode filterMode) { fFilterMode = filterMode; }
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void setTileModeX(const SkShader::TileMode tm) { fTileModes[0] = tm; }
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void setTileModeY(const SkShader::TileMode tm) { fTileModes[1] = tm; }
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void setTileModeXAndY(const SkShader::TileMode tm) { fTileModes[0] = fTileModes[1] = tm; }
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SkShader::TileMode getTileModeX() const { return fTileModes[0]; }
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SkShader::TileMode getTileModeY() const { return fTileModes[1]; }
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bool isTiled() const {
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return SkShader::kClamp_TileMode != fTileModes[0] ||
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SkShader::kClamp_TileMode != fTileModes[1];
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}
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FilterMode filterMode() const { return fFilterMode; }
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bool operator== (const GrTextureParams& other) const {
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return fTileModes[0] == other.fTileModes[0] &&
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fTileModes[1] == other.fTileModes[1] &&
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fFilterMode == other.fFilterMode;
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}
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bool operator!= (const GrTextureParams& other) const { return !(*this == other); }
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private:
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SkShader::TileMode fTileModes[2];
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FilterMode fFilterMode;
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};
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#endif
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