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| 1 /* | 1 /* |
| 2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 Google Inc. |
| 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 #include "SkDrawCommand.h" | 8 #include "SkDrawCommand.h" |
| 9 | 9 |
| 10 #include "png.h" |
| 11 |
| 10 #include "SkBlurMaskFilter.h" | 12 #include "SkBlurMaskFilter.h" |
| 11 #include "SkColorFilter.h" | 13 #include "SkColorFilter.h" |
| 12 #include "SkDashPathEffect.h" | 14 #include "SkDashPathEffect.h" |
| 13 #include "SkImageFilter.h" | 15 #include "SkImageFilter.h" |
| 14 #include "SkJsonWriteBuffer.h" | 16 #include "SkJsonWriteBuffer.h" |
| 15 #include "SkMaskFilter.h" | 17 #include "SkMaskFilter.h" |
| 16 #include "SkObjectParser.h" | 18 #include "SkObjectParser.h" |
| 17 #include "SkPaintDefaults.h" | 19 #include "SkPaintDefaults.h" |
| 18 #include "SkPathEffect.h" | 20 #include "SkPathEffect.h" |
| 19 #include "SkPicture.h" | 21 #include "SkPicture.h" |
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| 654 | 656 |
| 655 (*target) = jsonFlattenable; | 657 (*target) = jsonFlattenable; |
| 656 sk_free(data); | 658 sk_free(data); |
| 657 } | 659 } |
| 658 | 660 |
| 659 static void write_png_callback(png_structp png_ptr, png_bytep data, png_size_t l
ength) { | 661 static void write_png_callback(png_structp png_ptr, png_bytep data, png_size_t l
ength) { |
| 660 SkWStream* out = (SkWStream*) png_get_io_ptr(png_ptr); | 662 SkWStream* out = (SkWStream*) png_get_io_ptr(png_ptr); |
| 661 out->write(data, length); | 663 out->write(data, length); |
| 662 } | 664 } |
| 663 | 665 |
| 664 void SkDrawCommand::WritePNG(const png_bytep rgba, png_uint_32 width, png_uint_3
2 height, | 666 void SkDrawCommand::WritePNG(const uint8_t* rgba, unsigned width, unsigned heigh
t, |
| 665 SkWStream& out, bool isOpaque) { | 667 SkWStream& out, bool isOpaque) { |
| 666 png_structp png = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL,
NULL); | 668 png_structp png = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL,
NULL); |
| 667 SkASSERT(png != nullptr); | 669 SkASSERT(png != nullptr); |
| 668 png_infop info_ptr = png_create_info_struct(png); | 670 png_infop info_ptr = png_create_info_struct(png); |
| 669 SkASSERT(info_ptr != nullptr); | 671 SkASSERT(info_ptr != nullptr); |
| 670 if (setjmp(png_jmpbuf(png))) { | 672 if (setjmp(png_jmpbuf(png))) { |
| 671 SkFAIL("png encode error"); | 673 SkFAIL("png encode error"); |
| 672 } | 674 } |
| 673 png_set_write_fn(png, &out, write_png_callback, NULL); | 675 png_set_write_fn(png, &out, write_png_callback, NULL); |
| 674 int colorType = isOpaque ? PNG_COLOR_TYPE_RGB : PNG_COLOR_TYPE_RGBA; | 676 int colorType = isOpaque ? PNG_COLOR_TYPE_RGB : PNG_COLOR_TYPE_RGBA; |
| 675 png_set_IHDR(png, info_ptr, width, height, 8, colorType, PNG_INTERLACE_NONE, | 677 png_set_IHDR(png, info_ptr, width, height, 8, colorType, PNG_INTERLACE_NONE, |
| 676 PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT); | 678 PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT); |
| 677 png_set_compression_level(png, 1); | 679 png_set_compression_level(png, 1); |
| 678 png_bytepp rows = (png_bytepp) sk_malloc_throw(height * sizeof(png_byte*)); | 680 png_bytepp rows = (png_bytepp) sk_malloc_throw(height * sizeof(png_byte*)); |
| 679 png_bytep pixels = (png_bytep) sk_malloc_throw(width * height * 4); | 681 png_bytep pixels = (png_bytep) sk_malloc_throw(width * height * 4); |
| 680 for (png_size_t y = 0; y < height; ++y) { | 682 for (png_size_t y = 0; y < height; ++y) { |
| 681 const png_bytep src = rgba + y * width * 4; | 683 const uint8_t* src = rgba + y * width * 4; |
| 682 rows[y] = pixels + y * width * 4; | 684 rows[y] = pixels + y * width * 4; |
| 683 for (png_size_t x = 0; x < width; ++x) { | 685 for (png_size_t x = 0; x < width; ++x) { |
| 684 rows[y][x * 4] = src[x * 4]; | 686 rows[y][x * 4] = src[x * 4]; |
| 685 rows[y][x * 4 + 1] = src[x * 4 + 1]; | 687 rows[y][x * 4 + 1] = src[x * 4 + 1]; |
| 686 rows[y][x * 4 + 2] = src[x * 4 + 2]; | 688 rows[y][x * 4 + 2] = src[x * 4 + 2]; |
| 687 rows[y][x * 4 + 3] = src[x * 4 + 3]; | 689 rows[y][x * 4 + 3] = src[x * 4 + 3]; |
| 688 } | 690 } |
| 689 } | 691 } |
| 690 png_write_info(png, info_ptr); | 692 png_write_info(png, info_ptr); |
| 691 if (isOpaque) { | 693 if (isOpaque) { |
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| 707 if (!image.readPixels(dstInfo, buffer.get(), rowBytes, 0, 0)) { | 709 if (!image.readPixels(dstInfo, buffer.get(), rowBytes, 0, 0)) { |
| 708 SkDebugf("readPixels failed\n"); | 710 SkDebugf("readPixels failed\n"); |
| 709 return false; | 711 return false; |
| 710 } | 712 } |
| 711 | 713 |
| 712 SkBitmap bm; | 714 SkBitmap bm; |
| 713 bm.installPixels(dstInfo, buffer.get(), rowBytes); | 715 bm.installPixels(dstInfo, buffer.get(), rowBytes); |
| 714 sk_sp<SkData> encodedBitmap = sk_tools::encode_bitmap_for_png(bm); | 716 sk_sp<SkData> encodedBitmap = sk_tools::encode_bitmap_for_png(bm); |
| 715 | 717 |
| 716 SkDynamicMemoryWStream out; | 718 SkDynamicMemoryWStream out; |
| 717 SkDrawCommand::WritePNG((const png_bytep) encodedBitmap->bytes(), image.widt
h(), image.height(), | 719 SkDrawCommand::WritePNG(encodedBitmap->bytes(), image.width(), image.height(
), |
| 718 out, false); | 720 out, false); |
| 719 sk_sp<SkData> encoded = out.detachAsData(); | 721 sk_sp<SkData> encoded = out.detachAsData(); |
| 720 Json::Value jsonData; | 722 Json::Value jsonData; |
| 721 encode_data(encoded->data(), encoded->size(), "image/png", urlDataManager, &
jsonData); | 723 encode_data(encoded->data(), encoded->size(), "image/png", urlDataManager, &
jsonData); |
| 722 (*target)[SKDEBUGCANVAS_ATTRIBUTE_DATA] = jsonData; | 724 (*target)[SKDEBUGCANVAS_ATTRIBUTE_DATA] = jsonData; |
| 723 return true; | 725 return true; |
| 724 } | 726 } |
| 725 | 727 |
| 726 static const char* color_type_name(SkColorType colorType) { | 728 static const char* color_type_name(SkColorType colorType) { |
| 727 switch (colorType) { | 729 switch (colorType) { |
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| 3533 SkTranslateZCommand* SkTranslateZCommand::fromJSON(Json::Value& command, | 3535 SkTranslateZCommand* SkTranslateZCommand::fromJSON(Json::Value& command, |
| 3534 UrlDataManager& urlDataManager) { | 3536 UrlDataManager& urlDataManager) { |
| 3535 SkScalar z; | 3537 SkScalar z; |
| 3536 #ifdef SK_EXPERIMENTAL_SHADOWING | 3538 #ifdef SK_EXPERIMENTAL_SHADOWING |
| 3537 extract_json_scalar(command[SKDEBUGCANVAS_ATTRIBUTE_DRAWDEPTHTRANS], &z); | 3539 extract_json_scalar(command[SKDEBUGCANVAS_ATTRIBUTE_DRAWDEPTHTRANS], &z); |
| 3538 #else | 3540 #else |
| 3539 z = 0; | 3541 z = 0; |
| 3540 #endif | 3542 #endif |
| 3541 return new SkTranslateZCommand(z); | 3543 return new SkTranslateZCommand(z); |
| 3542 } | 3544 } |
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