// This method is not exported to java.
void swap(SkBitmap& other);
+ ///////////////////////////////////////////////////////////////////////////
+
+ const SkImageInfo& info() const { return fInfo; }
+
+ int width() const { return fInfo.fWidth; }
+ int height() const { return fInfo.fHeight; }
+ SkColorType colorType() const { return fInfo.fColorType; }
+ SkAlphaType alphaType() const { return fInfo.fAlphaType; }
+
+ /** Return the number of bytes per pixel based on the config. If the config
+ does not have at least 1 byte per (e.g. kA1_Config) then 0 is returned.
+ */
+ int bytesPerPixel() const { return fInfo.bytesPerPixel(); }
+
+ /** Return the rowbytes expressed as a number of pixels (like width and
+ height). Note, for 1-byte per pixel configs like kA8_Config, this will
+ return the same as rowBytes(). Is undefined for configs that are less
+ than 1-byte per pixel (e.g. kA1_Config)
+ */
+ int rowBytesAsPixels() const {
+ return fRowBytes >> this->shiftPerPixel();
+ }
+
+ /** Return the shift amount per pixel (i.e. 0 for 1-byte per pixel, 1 for
+ 2-bytes per pixel configs, 2 for 4-bytes per pixel configs). Return 0
+ for configs that are not at least 1-byte per pixel (e.g. kA1_Config
+ or kNo_Config)
+ */
+ int shiftPerPixel() const { return this->bytesPerPixel() >> 1; }
+
+ ///////////////////////////////////////////////////////////////////////////
+
/** Return true iff the bitmap has empty dimensions.
- */
- bool empty() const { return 0 == fWidth || 0 == fHeight; }
+ * Hey! Before you use this, see if you really want to know drawsNothing() instead.
+ */
+ bool empty() const { return fInfo.isEmpty(); }
/** Return true iff the bitmap has no pixelref. Note: this can return true even if the
- dimensions of the bitmap are > 0 (see empty()).
- */
+ * dimensions of the bitmap are > 0 (see empty()).
+ * Hey! Before you use this, see if you really want to know drawsNothing() instead.
+ */
bool isNull() const { return NULL == fPixelRef; }
+ /** Return true iff drawing this bitmap has no effect.
+ */
+ bool drawsNothing() const { return this->empty() || this->isNull(); }
+
/** Return the config for the bitmap. */
- Config config() const { return (Config)fConfig; }
+ Config config() const;
SK_ATTR_DEPRECATED("use config()")
Config getConfig() const { return this->config(); }
- /** Return the bitmap's width, in pixels. */
- int width() const { return fWidth; }
-
- /** Return the bitmap's height, in pixels. */
- int height() const { return fHeight; }
-
/** Return the number of bytes between subsequent rows of the bitmap. */
size_t rowBytes() const { return fRowBytes; }
- /** Return the shift amount per pixel (i.e. 0 for 1-byte per pixel, 1 for
- 2-bytes per pixel configs, 2 for 4-bytes per pixel configs). Return 0
- for configs that are not at least 1-byte per pixel (e.g. kA1_Config
- or kNo_Config)
- */
- int shiftPerPixel() const { return fBytesPerPixel >> 1; }
-
- /** Return the number of bytes per pixel based on the config. If the config
- does not have at least 1 byte per (e.g. kA1_Config) then 0 is returned.
- */
- int bytesPerPixel() const { return fBytesPerPixel; }
-
- /** Return the rowbytes expressed as a number of pixels (like width and
- height). Note, for 1-byte per pixel configs like kA8_Config, this will
- return the same as rowBytes(). Is undefined for configs that are less
- than 1-byte per pixel (e.g. kA1_Config)
- */
- int rowBytesAsPixels() const { return fRowBytes >> (fBytesPerPixel >> 1); }
-
- SkAlphaType alphaType() const { return (SkAlphaType)fAlphaType; }
-
/**
* Set the bitmap's alphaType, returning true on success. If false is
* returned, then the specified new alphaType is incompatible with the
* Config, and the current alphaType is unchanged.
+ *
+ * Note: this changes the alphatype for the underlying pixels, which means
+ * that all bitmaps that might be sharing (subsets of) the pixels will
+ * be affected.
*/
bool setAlphaType(SkAlphaType);
Note this truncates the result to 32bits. Call getSize64() to detect
if the real size exceeds 32bits.
*/
- size_t getSize() const { return fHeight * fRowBytes; }
+ size_t getSize() const { return fInfo.fHeight * fRowBytes; }
/** Return the number of bytes from the pointer returned by getPixels()
to the end of the allocated space in the buffer. Required in
cases where extractSubset has been called.
*/
- size_t getSafeSize() const ;
+ size_t getSafeSize() const { return fInfo.getSafeSize(fRowBytes); }
/**
* Return the full size of the bitmap, in bytes.
*/
int64_t computeSize64() const {
- return sk_64_mul(fHeight, fRowBytes);
+ return sk_64_mul(fInfo.fHeight, fRowBytes);
}
/**
* than computeSize64() if there is any rowbytes padding beyond the width.
*/
int64_t computeSafeSize64() const {
- return ComputeSafeSize64((Config)fConfig, fWidth, fHeight, fRowBytes);
+ return fInfo.getSafeSize64(fRowBytes);
}
/** Returns true if this bitmap is marked as immutable, meaning that the
void* context);
/**
- * If the bitmap's config can be represented as SkImageInfo, return true,
- * and if info is not-null, set it to the bitmap's info. If it cannot be
- * represented as SkImageInfo, return false and ignore the info parameter.
+ * DEPRECATED: call info().
*/
- bool asImageInfo(SkImageInfo* info) const;
+ bool asImageInfo(SkImageInfo* info) const {
+ // compatibility: return false for kUnknown
+ if (kUnknown_SkColorType == this->colorType()) {
+ return false;
+ }
+ if (info) {
+ *info = this->info();
+ }
+ return true;
+ }
/** Use this to assign a new pixel address for an existing bitmap. This
will automatically release any pixelref previously installed. Only call
*/
GrTexture* getTexture() const;
- /** Return the bitmap's colortable, if it uses one (i.e. fConfig is
- kIndex8_Config) and the pixels are locked.
+ /** Return the bitmap's colortable, if it uses one (i.e. colorType is
+ Index_8) and the pixels are locked.
Otherwise returns NULL. Does not affect the colortable's
reference count.
*/
buffers as they can optimize the recording process and avoid recording
duplicate bitmaps and pixelRefs.
*/
- void flatten(SkFlattenableWriteBuffer&) const;
- void unflatten(SkFlattenableReadBuffer&);
+ void flatten(SkWriteBuffer&) const;
+ void unflatten(SkReadBuffer&);
SkDEBUGCODE(void validate() const;)
#endif
};
+ SkImageInfo fInfo;
+
uint32_t fRowBytes;
- uint32_t fWidth;
- uint32_t fHeight;
- uint8_t fConfig;
- uint8_t fAlphaType;
+
uint8_t fFlags;
- uint8_t fBytesPerPixel; // based on config
void internalErase(const SkIRect&, U8CPU a, U8CPU r, U8CPU g, U8CPU b)const;
inline uint32_t* SkBitmap::getAddr32(int x, int y) const {
SkASSERT(fPixels);
- SkASSERT(fConfig == kARGB_8888_Config);
- SkASSERT((unsigned)x < fWidth && (unsigned)y < fHeight);
+ SkASSERT(this->config() == kARGB_8888_Config);
+ SkASSERT((unsigned)x < (unsigned)this->width() && (unsigned)y < (unsigned)this->height());
return (uint32_t*)((char*)fPixels + y * fRowBytes + (x << 2));
}
inline uint16_t* SkBitmap::getAddr16(int x, int y) const {
SkASSERT(fPixels);
- SkASSERT(fConfig == kRGB_565_Config || fConfig == kARGB_4444_Config);
- SkASSERT((unsigned)x < fWidth && (unsigned)y < fHeight);
+ SkASSERT(this->config() == kRGB_565_Config || this->config() == kARGB_4444_Config);
+ SkASSERT((unsigned)x < (unsigned)this->width() && (unsigned)y < (unsigned)this->height());
return (uint16_t*)((char*)fPixels + y * fRowBytes + (x << 1));
}
inline uint8_t* SkBitmap::getAddr8(int x, int y) const {
SkASSERT(fPixels);
- SkASSERT(fConfig == kA8_Config || fConfig == kIndex8_Config);
- SkASSERT((unsigned)x < fWidth && (unsigned)y < fHeight);
+ SkASSERT(this->config() == kA8_Config || this->config() == kIndex8_Config);
+ SkASSERT((unsigned)x < (unsigned)this->width() && (unsigned)y < (unsigned)this->height());
return (uint8_t*)fPixels + y * fRowBytes + x;
}
inline SkPMColor SkBitmap::getIndex8Color(int x, int y) const {
SkASSERT(fPixels);
- SkASSERT(fConfig == kIndex8_Config);
- SkASSERT((unsigned)x < fWidth && (unsigned)y < fHeight);
+ SkASSERT(this->config() == kIndex8_Config);
+ SkASSERT((unsigned)x < (unsigned)this->width() && (unsigned)y < (unsigned)this->height());
SkASSERT(fColorTable);
return (*fColorTable)[*((const uint8_t*)fPixels + y * fRowBytes + x)];
}
+///////////////////////////////////////////////////////////////////////////////
+//
+// Helpers until we can fully deprecate SkBitmap::Config
+//
+extern SkBitmap::Config SkColorTypeToBitmapConfig(SkColorType);
+extern SkColorType SkBitmapConfigToColorType(SkBitmap::Config);
+
#endif
projects / platform / framework / web / crosswalk.git / blobdiff