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1 /* | 1 /* |
2 * Copyright 2006 The Android Open Source Project | 2 * Copyright 2006 The Android Open Source Project |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkBitmap_DEFINED | 8 #ifndef SkBitmap_DEFINED |
9 #define SkBitmap_DEFINED | 9 #define SkBitmap_DEFINED |
10 | 10 |
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584 * will be used. | 584 * will be used. |
585 * @return true if the copy was made. | 585 * @return true if the copy was made. |
586 */ | 586 */ |
587 bool copyTo(SkBitmap* dst, SkColorType ct, Allocator* = NULL) const; | 587 bool copyTo(SkBitmap* dst, SkColorType ct, Allocator* = NULL) const; |
588 | 588 |
589 bool copyTo(SkBitmap* dst, Allocator* allocator = NULL) const { | 589 bool copyTo(SkBitmap* dst, Allocator* allocator = NULL) const { |
590 return this->copyTo(dst, this->colorType(), allocator); | 590 return this->copyTo(dst, this->colorType(), allocator); |
591 } | 591 } |
592 | 592 |
593 /** | 593 /** |
594 * Copy the bitmap's pixels into the specified buffer (pixels + rowBytes), | |
595 * converting them into the requested format (SkImageInfo). The src pixels
are read | |
596 * starting at the specified (srcX,srcY) offset, relative to the top-left c
orner. | |
597 * | |
598 * The specified ImageInfo and (srcX,srcY) offset specifies a source rectan
gle | |
599 * | |
600 * srcR.setXYWH(srcX, srcY, dstInfo.width(), dstInfo.height()); | |
601 * | |
602 * srcR is intersected with the bounds of the bitmap. If this intersection
is not empty, | |
603 * then we have two sets of pixels (of equal size). Replace the dst pixels
with the | |
604 * corresponding src pixels, performing any colortype/alphatype transformat
ions needed | |
605 * (in the case where the src and dst have different colortypes or alphatyp
es). | |
606 * | |
607 * This call can fail, returning false, for several reasons: | |
608 * - If srcR does not intersect the bitmap bounds. | |
609 * - If the requested colortype/alphatype cannot be converted from the src'
s types. | |
610 * - If the src pixels are not available. | |
611 */ | |
612 bool readPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRowBy
tes, | |
613 int srcX, int srcY) const; | |
614 | |
615 /** | |
616 * Returns true if this bitmap's pixels can be converted into the requested | 594 * Returns true if this bitmap's pixels can be converted into the requested |
617 * colorType, such that copyTo() could succeed. | 595 * colorType, such that copyTo() could succeed. |
618 */ | 596 */ |
619 bool canCopyTo(SkColorType colorType) const; | 597 bool canCopyTo(SkColorType colorType) const; |
620 | 598 |
621 /** Makes a deep copy of this bitmap, keeping the copied pixels | 599 /** Makes a deep copy of this bitmap, keeping the copied pixels |
622 * in the same domain as the source: If the src pixels are allocated for | 600 * in the same domain as the source: If the src pixels are allocated for |
623 * the cpu, then so will the dst. If the src pixels are allocated on the | 601 * the cpu, then so will the dst. If the src pixels are allocated on the |
624 * gpu (typically as a texture), the it will do the same for the dst. | 602 * gpu (typically as a texture), the it will do the same for the dst. |
625 * If the request cannot be fulfilled, returns false and dst is unmodified. | 603 * If the request cannot be fulfilled, returns false and dst is unmodified. |
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870 #ifdef SK_SUPPORT_LEGACY_BITMAP_CONFIG | 848 #ifdef SK_SUPPORT_LEGACY_BITMAP_CONFIG |
871 /////////////////////////////////////////////////////////////////////////////// | 849 /////////////////////////////////////////////////////////////////////////////// |
872 // | 850 // |
873 // Helpers until we can fully deprecate SkBitmap::Config | 851 // Helpers until we can fully deprecate SkBitmap::Config |
874 // | 852 // |
875 SK_API SkBitmap::Config SkColorTypeToBitmapConfig(SkColorType); | 853 SK_API SkBitmap::Config SkColorTypeToBitmapConfig(SkColorType); |
876 SK_API SkColorType SkBitmapConfigToColorType(SkBitmap::Config); | 854 SK_API SkColorType SkBitmapConfigToColorType(SkBitmap::Config); |
877 #endif | 855 #endif |
878 | 856 |
879 #endif | 857 #endif |
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