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-rw-r--r--src/codec/SkBmpCodec.cpp2
-rw-r--r--src/codec/SkBmpMaskCodec.cpp2
-rw-r--r--src/codec/SkBmpRLECodec.cpp2
-rw-r--r--src/codec/SkBmpStandardCodec.cpp2
-rw-r--r--src/codec/SkCodecPriv.h42
-rw-r--r--src/codec/SkGifCodec.cpp5
-rw-r--r--src/codec/SkJpegCodec.cpp43
-rw-r--r--src/codec/SkJpegCodec.h4
-rw-r--r--src/codec/SkPngCodec.cpp39
-rw-r--r--src/codec/SkRawCodec.cpp2
-rw-r--r--src/codec/SkWebpCodec.cpp27
11 files changed, 76 insertions, 94 deletions
diff --git a/src/codec/SkBmpCodec.cpp b/src/codec/SkBmpCodec.cpp
index 1c999eba3c..2f796ad667 100644
--- a/src/codec/SkBmpCodec.cpp
+++ b/src/codec/SkBmpCodec.cpp
@@ -603,7 +603,7 @@ int32_t SkBmpCodec::getDstRow(int32_t y, int32_t height) const {
SkCodec::Result SkBmpCodec::onStartScanlineDecode(const SkImageInfo& dstInfo,
const SkCodec::Options& options, SkPMColor inputColorPtr[], int* inputColorCount) {
- if (!conversion_possible(dstInfo, this->getInfo())) {
+ if (!conversion_possible_ignore_color_space(dstInfo, this->getInfo())) {
SkCodecPrintf("Error: cannot convert input type to output type.\n");
return kInvalidConversion;
}
diff --git a/src/codec/SkBmpMaskCodec.cpp b/src/codec/SkBmpMaskCodec.cpp
index 7d2d398bb4..5b28252f7c 100644
--- a/src/codec/SkBmpMaskCodec.cpp
+++ b/src/codec/SkBmpMaskCodec.cpp
@@ -39,7 +39,7 @@ SkCodec::Result SkBmpMaskCodec::onGetPixels(const SkImageInfo& dstInfo,
return kInvalidScale;
}
- if (!conversion_possible(dstInfo, this->getInfo())) {
+ if (!conversion_possible_ignore_color_space(dstInfo, this->getInfo())) {
SkCodecPrintf("Error: cannot convert input type to output type.\n");
return kInvalidConversion;
}
diff --git a/src/codec/SkBmpRLECodec.cpp b/src/codec/SkBmpRLECodec.cpp
index 02b42f6d90..252d63e352 100644
--- a/src/codec/SkBmpRLECodec.cpp
+++ b/src/codec/SkBmpRLECodec.cpp
@@ -44,7 +44,7 @@ SkCodec::Result SkBmpRLECodec::onGetPixels(const SkImageInfo& dstInfo,
// Subsets are not supported.
return kUnimplemented;
}
- if (!conversion_possible(dstInfo, this->getInfo())) {
+ if (!conversion_possible_ignore_color_space(dstInfo, this->getInfo())) {
SkCodecPrintf("Error: cannot convert input type to output type.\n");
return kInvalidConversion;
}
diff --git a/src/codec/SkBmpStandardCodec.cpp b/src/codec/SkBmpStandardCodec.cpp
index 651ff83b8a..089e3105c2 100644
--- a/src/codec/SkBmpStandardCodec.cpp
+++ b/src/codec/SkBmpStandardCodec.cpp
@@ -48,7 +48,7 @@ SkCodec::Result SkBmpStandardCodec::onGetPixels(const SkImageInfo& dstInfo,
SkCodecPrintf("Error: scaling not supported.\n");
return kInvalidScale;
}
- if (!conversion_possible(dstInfo, this->getInfo())) {
+ if (!conversion_possible_ignore_color_space(dstInfo, this->getInfo())) {
SkCodecPrintf("Error: cannot convert input type to output type.\n");
return kInvalidConversion;
}
diff --git a/src/codec/SkCodecPriv.h b/src/codec/SkCodecPriv.h
index 9a8a43e835..4285786304 100644
--- a/src/codec/SkCodecPriv.h
+++ b/src/codec/SkCodecPriv.h
@@ -107,14 +107,18 @@ static inline bool valid_alpha(SkAlphaType dstAlpha, SkAlphaType srcAlpha) {
}
/*
+ * Original version of conversion_possible that does not account for color spaces.
+ * Used by codecs that have not been updated to support color spaces.
+ *
* Most of our codecs support the same conversions:
* - opaque to any alpha type
* - 565 only if opaque
* - premul to unpremul and vice versa
- * - always support N32
+ * - always support RGBA, BGRA
* - otherwise match the src color type
*/
-static inline bool conversion_possible(const SkImageInfo& dst, const SkImageInfo& src) {
+static inline bool conversion_possible_ignore_color_space(const SkImageInfo& dst,
+ const SkImageInfo& src) {
// Ensure the alpha type is valid
if (!valid_alpha(dst.alphaType(), src.alphaType())) {
return false;
@@ -335,4 +339,38 @@ static inline SkAlphaType select_alpha_xform(SkAlphaType dstAlphaType, SkAlphaTy
return (kOpaque_SkAlphaType == srcAlphaType) ? kOpaque_SkAlphaType : dstAlphaType;
}
+/*
+ * Alpha Type Conversions
+ * - kOpaque to kOpaque, kUnpremul, kPremul is valid
+ * - kUnpremul to kUnpremul, kPremul is valid
+ *
+ * Color Type Conversions
+ * - Always support kRGBA_8888, kBGRA_8888
+ * - Support kRGBA_F16 when there is a linear dst color space
+ * - Support kIndex8 if it matches the src
+ * - Support k565, kGray8 if kOpaque and color correction is not required
+ */
+static inline bool conversion_possible(const SkImageInfo& dst, const SkImageInfo& src) {
+ // Ensure the alpha type is valid.
+ if (!valid_alpha(dst.alphaType(), src.alphaType())) {
+ return false;
+ }
+
+ // Check for supported color types.
+ switch (dst.colorType()) {
+ case kRGBA_8888_SkColorType:
+ case kBGRA_8888_SkColorType:
+ return true;
+ case kRGBA_F16_SkColorType:
+ return dst.colorSpace() && dst.colorSpace()->gammaIsLinear();
+ case kIndex_8_SkColorType:
+ return kIndex_8_SkColorType == src.colorType();
+ case kRGB_565_SkColorType:
+ case kGray_8_SkColorType:
+ return kOpaque_SkAlphaType == src.alphaType() && !needs_color_xform(dst, src);
+ default:
+ return false;
+ }
+}
+
#endif // SkCodecPriv_DEFINED
diff --git a/src/codec/SkGifCodec.cpp b/src/codec/SkGifCodec.cpp
index dcc25b8dfd..1e6e300a92 100644
--- a/src/codec/SkGifCodec.cpp
+++ b/src/codec/SkGifCodec.cpp
@@ -450,9 +450,8 @@ void SkGifCodec::initializeColorTable(const SkImageInfo& dstInfo, SkPMColor* inp
SkCodec::Result SkGifCodec::prepareToDecode(const SkImageInfo& dstInfo, SkPMColor* inputColorPtr,
int* inputColorCount, const Options& opts) {
// Check for valid input parameters
- if (!conversion_possible(dstInfo, this->getInfo())) {
- return gif_error("Cannot convert input type to output type.\n",
- kInvalidConversion);
+ if (!conversion_possible_ignore_color_space(dstInfo, this->getInfo())) {
+ return gif_error("Cannot convert input type to output type.\n", kInvalidConversion);
}
// Initialize color table and copy to the client if necessary
diff --git a/src/codec/SkJpegCodec.cpp b/src/codec/SkJpegCodec.cpp
index fcf89d0c1d..d2f7cdb0fa 100644
--- a/src/codec/SkJpegCodec.cpp
+++ b/src/codec/SkJpegCodec.cpp
@@ -357,7 +357,7 @@ bool SkJpegCodec::onRewind() {
* image has been implemented
* Sets the output color space
*/
-bool SkJpegCodec::setOutputColorSpace(const SkImageInfo& dstInfo, bool needsColorXform) {
+bool SkJpegCodec::setOutputColorSpace(const SkImageInfo& dstInfo) {
if (kUnknown_SkAlphaType == dstInfo.alphaType()) {
return false;
}
@@ -384,7 +384,7 @@ bool SkJpegCodec::setOutputColorSpace(const SkImageInfo& dstInfo, bool needsColo
case kBGRA_8888_SkColorType:
if (isCMYK) {
fDecoderMgr->dinfo()->out_color_space = JCS_CMYK;
- } else if (needsColorXform) {
+ } else if (fColorXform) {
// Our color transformation code requires RGBA order inputs, but it'll swizzle
// to BGRA for us.
fDecoderMgr->dinfo()->out_color_space = JCS_EXT_RGBA;
@@ -393,7 +393,7 @@ bool SkJpegCodec::setOutputColorSpace(const SkImageInfo& dstInfo, bool needsColo
}
return true;
case kRGB_565_SkColorType:
- if (needsColorXform) {
+ if (fColorXform) {
return false;
}
@@ -405,14 +405,17 @@ bool SkJpegCodec::setOutputColorSpace(const SkImageInfo& dstInfo, bool needsColo
}
return true;
case kGray_8_SkColorType:
- if (needsColorXform || JCS_GRAYSCALE != encodedColorType) {
+ if (fColorXform || JCS_GRAYSCALE != encodedColorType) {
return false;
}
fDecoderMgr->dinfo()->out_color_space = JCS_GRAYSCALE;
return true;
case kRGBA_F16_SkColorType:
- SkASSERT(needsColorXform);
+ SkASSERT(fColorXform);
+ if (!dstInfo.colorSpace()->gammaIsLinear()) {
+ return false;
+ }
if (isCMYK) {
fDecoderMgr->dinfo()->out_color_space = JCS_CMYK;
@@ -545,16 +548,13 @@ SkCodec::Result SkJpegCodec::onGetPixels(const SkImageInfo& dstInfo,
return fDecoderMgr->returnFailure("setjmp", kInvalidInput);
}
+ this->initializeColorXform(dstInfo);
+
// Check if we can decode to the requested destination and set the output color space
- bool needsColorXform = needs_color_xform(dstInfo, this->getInfo());
- if (!this->setOutputColorSpace(dstInfo, needsColorXform)) {
+ if (!this->setOutputColorSpace(dstInfo)) {
return fDecoderMgr->returnFailure("setOutputColorSpace", kInvalidConversion);
}
- if (!this->initializeColorXform(dstInfo, needsColorXform)) {
- return fDecoderMgr->returnFailure("initializeColorXform", kInvalidParameters);
- }
-
if (!jpeg_start_decompress(dinfo)) {
return fDecoderMgr->returnFailure("startDecompress", kInvalidInput);
}
@@ -630,16 +630,12 @@ void SkJpegCodec::initializeSwizzler(const SkImageInfo& dstInfo, const Options&
SkASSERT(fSwizzler);
}
-bool SkJpegCodec::initializeColorXform(const SkImageInfo& dstInfo, bool needsColorXform) {
- if (needsColorXform) {
+void SkJpegCodec::initializeColorXform(const SkImageInfo& dstInfo) {
+ if (needs_color_xform(dstInfo, this->getInfo())) {
fColorXform = SkColorSpaceXform::New(sk_ref_sp(this->getInfo().colorSpace()),
sk_ref_sp(dstInfo.colorSpace()));
- if (!fColorXform && kRGBA_F16_SkColorType == dstInfo.colorType()) {
- return false;
- }
+ SkASSERT(fColorXform);
}
-
- return true;
}
SkSampler* SkJpegCodec::getSampler(bool createIfNecessary) {
@@ -661,14 +657,11 @@ SkCodec::Result SkJpegCodec::onStartScanlineDecode(const SkImageInfo& dstInfo,
return kInvalidInput;
}
- // Check if we can decode to the requested destination and set the output color space
- bool needsColorXform = needs_color_xform(dstInfo, this->getInfo());
- if (!this->setOutputColorSpace(dstInfo, needsColorXform)) {
- return kInvalidConversion;
- }
+ this->initializeColorXform(dstInfo);
- if (!this->initializeColorXform(dstInfo, needsColorXform)) {
- return fDecoderMgr->returnFailure("initializeColorXform", kInvalidParameters);
+ // Check if we can decode to the requested destination and set the output color space
+ if (!this->setOutputColorSpace(dstInfo)) {
+ return fDecoderMgr->returnFailure("setOutputColorSpace", kInvalidConversion);
}
if (!jpeg_start_decompress(fDecoderMgr->dinfo())) {
diff --git a/src/codec/SkJpegCodec.h b/src/codec/SkJpegCodec.h
index 192e4beb0c..30425eea3f 100644
--- a/src/codec/SkJpegCodec.h
+++ b/src/codec/SkJpegCodec.h
@@ -104,10 +104,10 @@ private:
*
* Sets the output color space.
*/
- bool setOutputColorSpace(const SkImageInfo& dst, bool needsColorXform);
+ bool setOutputColorSpace(const SkImageInfo& dst);
void initializeSwizzler(const SkImageInfo& dstInfo, const Options& options);
- bool initializeColorXform(const SkImageInfo& dstInfo, bool needsColorXform);
+ void initializeColorXform(const SkImageInfo& dstInfo);
void allocateStorage(const SkImageInfo& dstInfo);
int readRows(const SkImageInfo& dstInfo, void* dst, size_t rowBytes, int count);
diff --git a/src/codec/SkPngCodec.cpp b/src/codec/SkPngCodec.cpp
index 34e6f91131..36ec21f0b8 100644
--- a/src/codec/SkPngCodec.cpp
+++ b/src/codec/SkPngCodec.cpp
@@ -357,25 +357,6 @@ static int bytes_per_pixel(int bitsPerPixel) {
return bitsPerPixel / 8;
}
-static bool png_conversion_possible(const SkImageInfo& dst, const SkImageInfo& src) {
- // Ensure the alpha type is valid
- if (!valid_alpha(dst.alphaType(), src.alphaType())) {
- return false;
- }
-
- // Check for supported color types
- switch (dst.colorType()) {
- case kRGBA_8888_SkColorType:
- case kBGRA_8888_SkColorType:
- case kRGBA_F16_SkColorType:
- return true;
- case kRGB_565_SkColorType:
- return kOpaque_SkAlphaType == src.alphaType();
- default:
- return dst.colorType() == src.colorType();
- }
-}
-
void SkPngCodec::allocateStorage(const SkImageInfo& dstInfo) {
switch (fXformMode) {
case kSwizzleOnly_XformMode:
@@ -422,7 +403,7 @@ public:
Result onStartScanlineDecode(const SkImageInfo& dstInfo, const Options& options,
SkPMColor ctable[], int* ctableCount) override {
- if (!png_conversion_possible(dstInfo, this->getInfo()) ||
+ if (!conversion_possible(dstInfo, this->getInfo()) ||
!this->initializeXforms(dstInfo, options, ctable, ctableCount))
{
return kInvalidConversion;
@@ -489,7 +470,7 @@ public:
Result onStartScanlineDecode(const SkImageInfo& dstInfo, const Options& options,
SkPMColor ctable[], int* ctableCount) override {
- if (!png_conversion_possible(dstInfo, this->getInfo()) ||
+ if (!conversion_possible(dstInfo, this->getInfo()) ||
!this->initializeXforms(dstInfo, options, ctable, ctableCount))
{
return kInvalidConversion;
@@ -807,20 +788,10 @@ bool SkPngCodec::initializeXforms(const SkImageInfo& dstInfo, const Options& opt
fSwizzler.reset(nullptr);
fColorXform = nullptr;
- bool needsColorXform = needs_color_xform(dstInfo, this->getInfo());
- if (needsColorXform) {
- if (kGray_8_SkColorType == dstInfo.colorType() ||
- kRGB_565_SkColorType == dstInfo.colorType())
- {
- return false;
- }
-
+ if (needs_color_xform(dstInfo, this->getInfo())) {
fColorXform = SkColorSpaceXform::New(sk_ref_sp(this->getInfo().colorSpace()),
sk_ref_sp(dstInfo.colorSpace()));
-
- if (!fColorXform && kRGBA_F16_SkColorType == dstInfo.colorType()) {
- return false;
- }
+ SkASSERT(fColorXform);
}
// If the image is RGBA and we have a color xform, we can skip the swizzler.
@@ -907,7 +878,7 @@ SkCodec::Result SkPngCodec::onGetPixels(const SkImageInfo& dstInfo, void* dst,
size_t rowBytes, const Options& options,
SkPMColor ctable[], int* ctableCount,
int* rowsDecoded) {
- if (!png_conversion_possible(dstInfo, this->getInfo()) ||
+ if (!conversion_possible(dstInfo, this->getInfo()) ||
!this->initializeXforms(dstInfo, options, ctable, ctableCount))
{
return kInvalidConversion;
diff --git a/src/codec/SkRawCodec.cpp b/src/codec/SkRawCodec.cpp
index 37d2d358ae..2a6a48fdbb 100644
--- a/src/codec/SkRawCodec.cpp
+++ b/src/codec/SkRawCodec.cpp
@@ -683,7 +683,7 @@ SkCodec::Result SkRawCodec::onGetPixels(const SkImageInfo& requestedInfo, void*
size_t dstRowBytes, const Options& options,
SkPMColor ctable[], int* ctableCount,
int* rowsDecoded) {
- if (!conversion_possible(requestedInfo, this->getInfo())) {
+ if (!conversion_possible_ignore_color_space(requestedInfo, this->getInfo())) {
SkCodecPrintf("Error: cannot convert input type to output type.\n");
return kInvalidConversion;
}
diff --git a/src/codec/SkWebpCodec.cpp b/src/codec/SkWebpCodec.cpp
index 0c3aa402bd..e8b27b2178 100644
--- a/src/codec/SkWebpCodec.cpp
+++ b/src/codec/SkWebpCodec.cpp
@@ -144,25 +144,6 @@ SkCodec* SkWebpCodec::NewFromStream(SkStream* stream) {
streamDeleter.release(), demux.release(), std::move(data));
}
-static bool webp_conversion_possible(const SkImageInfo& dst, const SkImageInfo& src,
- SkColorSpaceXform* colorXform) {
- if (!valid_alpha(dst.alphaType(), src.alphaType())) {
- return false;
- }
-
- switch (dst.colorType()) {
- case kRGBA_F16_SkColorType:
- return nullptr != colorXform;
- case kBGRA_8888_SkColorType:
- case kRGBA_8888_SkColorType:
- return true;
- case kRGB_565_SkColorType:
- return nullptr == colorXform && src.alphaType() == kOpaque_SkAlphaType;
- default:
- return false;
- }
-}
-
SkISize SkWebpCodec::onGetScaledDimensions(float desiredScale) const {
SkISize dim = this->getInfo().dimensions();
// SkCodec treats zero dimensional images as errors, so the minimum size
@@ -212,15 +193,15 @@ bool SkWebpCodec::onGetValidSubset(SkIRect* desiredSubset) const {
SkCodec::Result SkWebpCodec::onGetPixels(const SkImageInfo& dstInfo, void* dst, size_t rowBytes,
const Options& options, SkPMColor*, int*,
int* rowsDecodedPtr) {
+ if (!conversion_possible(dstInfo, this->getInfo())) {
+ return kInvalidConversion;
+ }
std::unique_ptr<SkColorSpaceXform> colorXform = nullptr;
if (needs_color_xform(dstInfo, this->getInfo())) {
colorXform = SkColorSpaceXform::New(sk_ref_sp(this->getInfo().colorSpace()),
sk_ref_sp(dstInfo.colorSpace()));
- }
-
- if (!webp_conversion_possible(dstInfo, this->getInfo(), colorXform.get())) {
- return kInvalidConversion;
+ SkASSERT(colorXform);
}
WebPDecoderConfig config;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 16:45:17 +0000