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-rw-r--r--src/core/SkShader.cpp305
1 files changed, 0 insertions, 305 deletions
diff --git a/src/core/SkShader.cpp b/src/core/SkShader.cpp
deleted file mode 100644
index d04fbfe4df..0000000000
--- a/src/core/SkShader.cpp
+++ /dev/null
@@ -1,305 +0,0 @@
-/*
- * Copyright 2006 The Android Open Source Project
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "SkArenaAlloc.h"
-#include "SkAtomics.h"
-#include "SkBitmapProcShader.h"
-#include "SkColorShader.h"
-#include "SkEmptyShader.h"
-#include "SkMallocPixelRef.h"
-#include "SkPaint.h"
-#include "SkPicture.h"
-#include "SkPictureShader.h"
-#include "SkPM4fPriv.h"
-#include "SkRasterPipeline.h"
-#include "SkReadBuffer.h"
-#include "SkScalar.h"
-#include "SkShaderBase.h"
-#include "SkTLazy.h"
-#include "SkWriteBuffer.h"
-#include "../jumper/SkJumper.h"
-
-#if SK_SUPPORT_GPU
-#include "GrFragmentProcessor.h"
-#endif
-
-//#define SK_TRACK_SHADER_LIFETIME
-
-#ifdef SK_TRACK_SHADER_LIFETIME
- static int32_t gShaderCounter;
-#endif
-
-static inline void inc_shader_counter() {
-#ifdef SK_TRACK_SHADER_LIFETIME
- int32_t prev = sk_atomic_inc(&gShaderCounter);
- SkDebugf("+++ shader counter %d\n", prev + 1);
-#endif
-}
-static inline void dec_shader_counter() {
-#ifdef SK_TRACK_SHADER_LIFETIME
- int32_t prev = sk_atomic_dec(&gShaderCounter);
- SkDebugf("--- shader counter %d\n", prev - 1);
-#endif
-}
-
-SkShaderBase::SkShaderBase(const SkMatrix* localMatrix)
- : fLocalMatrix(localMatrix ? *localMatrix : SkMatrix::I()) {
- inc_shader_counter();
- // Pre-cache so future calls to fLocalMatrix.getType() are threadsafe.
- (void)fLocalMatrix.getType();
-}
-
-SkShaderBase::~SkShaderBase() {
- dec_shader_counter();
-}
-
-void SkShaderBase::flatten(SkWriteBuffer& buffer) const {
- this->INHERITED::flatten(buffer);
- bool hasLocalM = !fLocalMatrix.isIdentity();
- buffer.writeBool(hasLocalM);
- if (hasLocalM) {
- buffer.writeMatrix(fLocalMatrix);
- }
-}
-
-bool SkShaderBase::computeTotalInverse(const SkMatrix& ctm,
- const SkMatrix* outerLocalMatrix,
- SkMatrix* totalInverse) const {
- SkMatrix total = SkMatrix::Concat(ctm, fLocalMatrix);
- if (outerLocalMatrix) {
- total.preConcat(*outerLocalMatrix);
- }
-
- return total.invert(totalInverse);
-}
-
-bool SkShaderBase::asLuminanceColor(SkColor* colorPtr) const {
- SkColor storage;
- if (nullptr == colorPtr) {
- colorPtr = &storage;
- }
- if (this->onAsLuminanceColor(colorPtr)) {
- *colorPtr = SkColorSetA(*colorPtr, 0xFF); // we only return opaque
- return true;
- }
- return false;
-}
-
-SkShaderBase::Context* SkShaderBase::makeContext(const ContextRec& rec, SkArenaAlloc* alloc) const {
- if (!this->computeTotalInverse(*rec.fMatrix, rec.fLocalMatrix, nullptr)) {
- return nullptr;
- }
- return this->onMakeContext(rec, alloc);
-}
-
-SkShaderBase::Context::Context(const SkShaderBase& shader, const ContextRec& rec)
- : fShader(shader), fCTM(*rec.fMatrix)
-{
- // We should never use a context for RP-only shaders.
- SkASSERT(!shader.isRasterPipelineOnly());
-
- // Because the context parameters must be valid at this point, we know that the matrix is
- // invertible.
- SkAssertResult(fShader.computeTotalInverse(*rec.fMatrix, rec.fLocalMatrix, &fTotalInverse));
- fTotalInverseClass = (uint8_t)ComputeMatrixClass(fTotalInverse);
-
- fPaintAlpha = rec.fPaint->getAlpha();
-}
-
-SkShaderBase::Context::~Context() {}
-
-SkShaderBase::Context::ShadeProc SkShaderBase::Context::asAShadeProc(void** ctx) {
- return nullptr;
-}
-
-void SkShaderBase::Context::shadeSpan4f(int x, int y, SkPM4f dst[], int count) {
- const int N = 128;
- SkPMColor tmp[N];
- while (count > 0) {
- int n = SkTMin(count, N);
- this->shadeSpan(x, y, tmp, n);
- for (int i = 0; i < n; ++i) {
- dst[i] = SkPM4f::FromPMColor(tmp[i]);
- }
- dst += n;
- x += n;
- count -= n;
- }
-}
-
-#include "SkColorPriv.h"
-
-#define kTempColorQuadCount 6 // balance between speed (larger) and saving stack-space
-#define kTempColorCount (kTempColorQuadCount << 2)
-
-#ifdef SK_CPU_BENDIAN
- #define SkU32BitShiftToByteOffset(shift) (3 - ((shift) >> 3))
-#else
- #define SkU32BitShiftToByteOffset(shift) ((shift) >> 3)
-#endif
-
-void SkShaderBase::Context::shadeSpanAlpha(int x, int y, uint8_t alpha[], int count) {
- SkASSERT(count > 0);
-
- SkPMColor colors[kTempColorCount];
-
- while ((count -= kTempColorCount) >= 0) {
- this->shadeSpan(x, y, colors, kTempColorCount);
- x += kTempColorCount;
-
- const uint8_t* srcA = (const uint8_t*)colors + SkU32BitShiftToByteOffset(SK_A32_SHIFT);
- int quads = kTempColorQuadCount;
- do {
- U8CPU a0 = srcA[0];
- U8CPU a1 = srcA[4];
- U8CPU a2 = srcA[8];
- U8CPU a3 = srcA[12];
- srcA += 4*4;
- *alpha++ = SkToU8(a0);
- *alpha++ = SkToU8(a1);
- *alpha++ = SkToU8(a2);
- *alpha++ = SkToU8(a3);
- } while (--quads != 0);
- }
- SkASSERT(count < 0);
- SkASSERT(count + kTempColorCount >= 0);
- if (count += kTempColorCount) {
- this->shadeSpan(x, y, colors, count);
-
- const uint8_t* srcA = (const uint8_t*)colors + SkU32BitShiftToByteOffset(SK_A32_SHIFT);
- do {
- *alpha++ = *srcA;
- srcA += 4;
- } while (--count != 0);
- }
-#if 0
- do {
- int n = count;
- if (n > kTempColorCount)
- n = kTempColorCount;
- SkASSERT(n > 0);
-
- this->shadeSpan(x, y, colors, n);
- x += n;
- count -= n;
-
- const uint8_t* srcA = (const uint8_t*)colors + SkU32BitShiftToByteOffset(SK_A32_SHIFT);
- do {
- *alpha++ = *srcA;
- srcA += 4;
- } while (--n != 0);
- } while (count > 0);
-#endif
-}
-
-SkShaderBase::Context::MatrixClass SkShaderBase::Context::ComputeMatrixClass(const SkMatrix& mat) {
- MatrixClass mc = kLinear_MatrixClass;
-
- if (mat.hasPerspective()) {
- if (mat.isFixedStepInX()) {
- mc = kFixedStepInX_MatrixClass;
- } else {
- mc = kPerspective_MatrixClass;
- }
- }
- return mc;
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-const SkMatrix& SkShader::getLocalMatrix() const {
- return as_SB(this)->getLocalMatrix();
-}
-
-#ifdef SK_SUPPORT_LEGACY_SHADER_ISABITMAP
-bool SkShader::isABitmap(SkBitmap* outTexture, SkMatrix* outMatrix, TileMode xy[2]) const {
- return as_SB(this)->onIsABitmap(outTexture, outMatrix, xy);
-}
-#endif
-
-SkImage* SkShader::isAImage(SkMatrix* localMatrix, TileMode xy[2]) const {
- return as_SB(this)->onIsAImage(localMatrix, xy);
-}
-
-SkShader::GradientType SkShader::asAGradient(GradientInfo* info) const {
- return kNone_GradientType;
-}
-
-#if SK_SUPPORT_GPU
-sk_sp<GrFragmentProcessor> SkShaderBase::asFragmentProcessor(const AsFPArgs&) const {
- return nullptr;
-}
-#endif
-
-sk_sp<SkShader> SkShader::makeAsALocalMatrixShader(SkMatrix*) const {
- return nullptr;
-}
-
-sk_sp<SkShader> SkShader::MakeEmptyShader() { return sk_make_sp<SkEmptyShader>(); }
-
-sk_sp<SkShader> SkShader::MakeColorShader(SkColor color) { return sk_make_sp<SkColorShader>(color); }
-
-sk_sp<SkShader> SkShader::MakeBitmapShader(const SkBitmap& src, TileMode tmx, TileMode tmy,
- const SkMatrix* localMatrix) {
- if (localMatrix && !localMatrix->invert(nullptr)) {
- return nullptr;
- }
- return SkMakeBitmapShader(src, tmx, tmy, localMatrix, kIfMutable_SkCopyPixelsMode);
-}
-
-sk_sp<SkShader> SkShader::MakePictureShader(sk_sp<SkPicture> src, TileMode tmx, TileMode tmy,
- const SkMatrix* localMatrix, const SkRect* tile) {
- if (localMatrix && !localMatrix->invert(nullptr)) {
- return nullptr;
- }
- return SkPictureShader::Make(std::move(src), tmx, tmy, localMatrix, tile);
-}
-
-#ifndef SK_IGNORE_TO_STRING
-void SkShaderBase::toString(SkString* str) const {
- if (!fLocalMatrix.isIdentity()) {
- str->append(" ");
- fLocalMatrix.toString(str);
- }
-}
-#endif
-
-bool SkShaderBase::appendStages(SkRasterPipeline* p,
- SkColorSpace* dstCS,
- SkArenaAlloc* alloc,
- const SkMatrix& ctm,
- const SkPaint& paint,
- const SkMatrix* localM) const {
- return this->onAppendStages(p, dstCS, alloc, ctm, paint, localM);
-}
-
-bool SkShaderBase::onAppendStages(SkRasterPipeline* p,
- SkColorSpace* dstCS,
- SkArenaAlloc* alloc,
- const SkMatrix& ctm,
- const SkPaint& paint,
- const SkMatrix* localM) const {
- return false;
-}
-
-///////////////////////////////////////////////////////////////////////////////////////////////////
-
-sk_sp<SkFlattenable> SkEmptyShader::CreateProc(SkReadBuffer&) {
- return SkShader::MakeEmptyShader();
-}
-
-#ifndef SK_IGNORE_TO_STRING
-#include "SkEmptyShader.h"
-
-void SkEmptyShader::toString(SkString* str) const {
- str->append("SkEmptyShader: (");
-
- this->INHERITED::toString(str);
-
- str->append(")");
-}
-#endif
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