X-Git-Url: https://git.saurik.com/android/aapt.git/blobdiff_plain/05d2880d1cff35c48f331419f29b98286721e996..a1cc551d359ff0c35ffe148d4b3855eb19a24070:/Images.cpp diff --git a/Images.cpp b/Images.cpp index 4c776fb..9de685a 100644 --- a/Images.cpp +++ b/Images.cpp @@ -8,7 +8,7 @@ #include "Images.h" -#include +#include #include #include @@ -44,6 +44,9 @@ struct image_info } free(allocRows); } + free(info9Patch.xDivs); + free(info9Patch.yDivs); + free(info9Patch.colors); } png_uint_32 width; @@ -54,6 +57,13 @@ struct image_info bool is9Patch; Res_png_9patch info9Patch; + // Layout padding, if relevant + bool haveLayoutBounds; + int32_t layoutBoundsLeft; + int32_t layoutBoundsTop; + int32_t layoutBoundsRight; + int32_t layoutBoundsBottom; + png_uint_32 allocHeight; png_bytepp allocRows; }; @@ -126,33 +136,62 @@ static void read_png(const char* imageName, &interlace_type, &compression_type, NULL); } -static bool is_tick(png_bytep p, bool transparent, const char** outError) +#define COLOR_TRANSPARENT 0 +#define COLOR_WHITE 0xFFFFFFFF +#define COLOR_TICK 0xFF000000 +#define COLOR_LAYOUT_BOUNDS_TICK 0xFF0000FF + +enum { + TICK_TYPE_NONE, + TICK_TYPE_TICK, + TICK_TYPE_LAYOUT_BOUNDS, + TICK_TYPE_BOTH +}; + +static int tick_type(png_bytep p, bool transparent, const char** outError) { + png_uint_32 color = p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24); + if (transparent) { if (p[3] == 0) { - return false; + return TICK_TYPE_NONE; + } + if (color == COLOR_LAYOUT_BOUNDS_TICK) { + return TICK_TYPE_LAYOUT_BOUNDS; + } + if (color == COLOR_TICK) { + return TICK_TYPE_TICK; } + + // Error cases if (p[3] != 0xff) { *outError = "Frame pixels must be either solid or transparent (not intermediate alphas)"; - return false; + return TICK_TYPE_NONE; } if (p[0] != 0 || p[1] != 0 || p[2] != 0) { - *outError = "Ticks in transparent frame must be black"; + *outError = "Ticks in transparent frame must be black or red"; } - return true; + return TICK_TYPE_TICK; } if (p[3] != 0xFF) { *outError = "White frame must be a solid color (no alpha)"; } - if (p[0] == 0xFF && p[1] == 0xFF && p[2] == 0xFF) { - return false; + if (color == COLOR_WHITE) { + return TICK_TYPE_NONE; + } + if (color == COLOR_TICK) { + return TICK_TYPE_TICK; + } + if (color == COLOR_LAYOUT_BOUNDS_TICK) { + return TICK_TYPE_LAYOUT_BOUNDS; } + if (p[0] != 0 || p[1] != 0 || p[2] != 0) { - *outError = "Ticks in white frame must be black"; - return false; + *outError = "Ticks in white frame must be black or red"; + return TICK_TYPE_NONE; } - return true; + return TICK_TYPE_TICK; } enum { @@ -172,7 +211,7 @@ static status_t get_horizontal_ticks( bool found = false; for (i=1; i 1) { + (*outRight)++; + i--; + int tick = tick_type(row+i*4, transparent, outError); + if (tick != TICK_TYPE_LAYOUT_BOUNDS) { + break; + } + } + } + + return NO_ERROR; +} + +static status_t get_vertical_layout_bounds_ticks( + png_bytepp rows, int offset, int height, bool transparent, bool required, + int32_t* outTop, int32_t* outBottom, const char** outError) +{ + int i; + *outTop = *outBottom = 0; + + // Look for top tick + if (TICK_TYPE_LAYOUT_BOUNDS == tick_type(rows[1] + offset, transparent, outError)) { + // Starting with a layout padding tick + i = 1; + while (i < height - 1) { + (*outTop)++; + i++; + int tick = tick_type(rows[i] + offset, transparent, outError); + if (tick != TICK_TYPE_LAYOUT_BOUNDS) { + break; + } + } + } + + // Look for bottom tick + if (TICK_TYPE_LAYOUT_BOUNDS == tick_type(rows[height - 2] + offset, transparent, outError)) { + // Ending with a layout padding tick + i = height - 2; + while (i > 1) { + (*outBottom)++; + i--; + int tick = tick_type(rows[i] + offset, transparent, outError); + if (tick != TICK_TYPE_LAYOUT_BOUNDS) { + break; + } + } + } + + return NO_ERROR; +} + + static uint32_t get_color( png_bytepp rows, int left, int top, int right, int bottom) { @@ -332,8 +448,8 @@ static status_t do_9patch(const char* imageName, image_info* image) int H = image->height; int i, j; - int maxSizeXDivs = (W / 2 + 1) * sizeof(int32_t); - int maxSizeYDivs = (H / 2 + 1) * sizeof(int32_t); + int maxSizeXDivs = W * sizeof(int32_t); + int maxSizeYDivs = H * sizeof(int32_t); int32_t* xDivs = (int32_t*) malloc(maxSizeXDivs); int32_t* yDivs = (int32_t*) malloc(maxSizeYDivs); uint8_t numXDivs = 0; @@ -350,13 +466,16 @@ static status_t do_9patch(const char* imageName, image_info* image) image->info9Patch.paddingLeft = image->info9Patch.paddingRight = image->info9Patch.paddingTop = image->info9Patch.paddingBottom = -1; + image->layoutBoundsLeft = image->layoutBoundsRight = + image->layoutBoundsTop = image->layoutBoundsBottom = 0; + png_bytep p = image->rows[0]; bool transparent = p[3] == 0; bool hasColor = false; const char* errorMsg = NULL; int errorPixel = -1; - const char* errorEdge = ""; + const char* errorEdge = NULL; int colorIndex = 0; @@ -405,6 +524,25 @@ static status_t do_9patch(const char* imageName, image_info* image) goto getout; } + // Find left and right of layout padding... + get_horizontal_layout_bounds_ticks(image->rows[H-1], W, transparent, false, + &image->layoutBoundsLeft, + &image->layoutBoundsRight, &errorMsg); + + get_vertical_layout_bounds_ticks(image->rows, (W-1)*4, H, transparent, false, + &image->layoutBoundsTop, + &image->layoutBoundsBottom, &errorMsg); + + image->haveLayoutBounds = image->layoutBoundsLeft != 0 + || image->layoutBoundsRight != 0 + || image->layoutBoundsTop != 0 + || image->layoutBoundsBottom != 0; + + if (image->haveLayoutBounds) { + NOISY(printf("layoutBounds=%d %d %d %d\n", image->layoutBoundsLeft, image->layoutBoundsTop, + image->layoutBoundsRight, image->layoutBoundsBottom)); + } + // Copy patch data into image image->info9Patch.numXDivs = numXDivs; image->info9Patch.numYDivs = numYDivs; @@ -460,6 +598,14 @@ static status_t do_9patch(const char* imageName, image_info* image) if (yDivs[numYDivs - 1] == H) { numRows--; } + + // Make sure the amount of rows and columns will fit in the number of + // colors we can use in the 9-patch format. + if (numRows * numCols > 0x7F) { + errorMsg = "Too many rows and columns in 9-patch perimeter"; + goto getout; + } + numColors = numRows * numCols; image->info9Patch.numColors = numColors; image->info9Patch.colors = (uint32_t*)malloc(numColors * sizeof(uint32_t)); @@ -530,12 +676,14 @@ getout: fprintf(stderr, "ERROR: 9-patch image %s malformed.\n" " %s.\n", imageName, errorMsg); - if (errorPixel >= 0) { - fprintf(stderr, - " Found at pixel #%d along %s edge.\n", errorPixel, errorEdge); - } else { - fprintf(stderr, - " Found along %s edge.\n", errorEdge); + if (errorEdge != NULL) { + if (errorPixel >= 0) { + fprintf(stderr, + " Found at pixel #%d along %s edge.\n", errorPixel, errorEdge); + } else { + fprintf(stderr, + " Found along %s edge.\n", errorEdge); + } } return UNKNOWN_ERROR; } @@ -610,7 +758,7 @@ static void dump_image(int w, int h, png_bytepp rows, int color_type) } else if (color_type == PNG_COLOR_TYPE_GRAY_ALPHA) { bpp = 2; } else if (color_type == PNG_COLOR_TYPE_RGB || color_type == PNG_COLOR_TYPE_RGB_ALPHA) { - // We use a padding byte even when there is no alpha + // We use a padding byte even when there is no alpha bpp = 4; } else { printf("Unknown color type %d.\n", color_type); @@ -832,7 +980,9 @@ static void write_png(const char* imageName, int bit_depth, interlace_type, compression_type; int i; - png_unknown_chunk unknowns[1]; + png_unknown_chunk unknowns[2]; + unknowns[0].data = NULL; + unknowns[1].data = NULL; png_bytepp outRows = (png_bytepp) malloc((int) imageInfo.height * png_sizeof(png_bytep)); if (outRows == (png_bytepp) 0) { @@ -859,6 +1009,14 @@ static void write_png(const char* imageName, analyze_image(imageName, imageInfo, grayscaleTolerance, rgbPalette, alphaPalette, &paletteEntries, &hasTransparency, &color_type, outRows); + + // If the image is a 9-patch, we need to preserve it as a ARGB file to make + // sure the pixels will not be pre-dithered/clamped until we decide they are + if (imageInfo.is9Patch && (color_type == PNG_COLOR_TYPE_RGB || + color_type == PNG_COLOR_TYPE_GRAY || color_type == PNG_COLOR_TYPE_PALETTE)) { + color_type = PNG_COLOR_TYPE_RGB_ALPHA; + } + switch (color_type) { case PNG_COLOR_TYPE_PALETTE: NOISY(printf("Image %s has %d colors%s, using PNG_COLOR_TYPE_PALETTE\n", @@ -894,23 +1052,42 @@ static void write_png(const char* imageName, } if (imageInfo.is9Patch) { + int chunk_count = 1 + (imageInfo.haveLayoutBounds ? 1 : 0); + int p_index = imageInfo.haveLayoutBounds ? 1 : 0; + int b_index = 0; + png_byte *chunk_names = imageInfo.haveLayoutBounds + ? (png_byte*)"npLb\0npTc\0" + : (png_byte*)"npTc"; NOISY(printf("Adding 9-patch info...\n")); - strcpy((char*)unknowns[0].name, "npTc"); - unknowns[0].data = (png_byte*)imageInfo.info9Patch.serialize(); - unknowns[0].size = imageInfo.info9Patch.serializedSize(); + strcpy((char*)unknowns[p_index].name, "npTc"); + unknowns[p_index].data = (png_byte*)imageInfo.info9Patch.serialize(); + unknowns[p_index].size = imageInfo.info9Patch.serializedSize(); // TODO: remove the check below when everything works - checkNinePatchSerialization(&imageInfo.info9Patch, unknowns[0].data); + checkNinePatchSerialization(&imageInfo.info9Patch, unknowns[p_index].data); + + if (imageInfo.haveLayoutBounds) { + int chunk_size = sizeof(png_uint_32) * 4; + strcpy((char*)unknowns[b_index].name, "npLb"); + unknowns[b_index].data = (png_byte*) calloc(chunk_size, 1); + memcpy(unknowns[b_index].data, &imageInfo.layoutBoundsLeft, chunk_size); + unknowns[b_index].size = chunk_size; + } + png_set_keep_unknown_chunks(write_ptr, PNG_HANDLE_CHUNK_ALWAYS, - (png_byte*)"npTc", 1); - png_set_unknown_chunks(write_ptr, write_info, unknowns, 1); + chunk_names, chunk_count); + png_set_unknown_chunks(write_ptr, write_info, unknowns, chunk_count); // XXX I can't get this to work without forcibly changing // the location to what I want... which apparently is supposed // to be a private API, but everything else I have tried results // in the location being set to what I -last- wrote so I never // get written. :p png_set_unknown_chunk_location(write_ptr, write_info, 0, PNG_HAVE_PLTE); + if (imageInfo.haveLayoutBounds) { + png_set_unknown_chunk_location(write_ptr, write_info, 1, PNG_HAVE_PLTE); + } } + png_write_info(write_ptr, write_info); png_bytepp rows; @@ -931,6 +1108,8 @@ static void write_png(const char* imageName, free(outRows[i]); } free(outRows); + free(unknowns[0].data); + free(unknowns[1].data); png_get_IHDR(write_ptr, write_info, &width, &height, &bit_depth, &color_type, &interlace_type, @@ -941,7 +1120,7 @@ static void write_png(const char* imageName, compression_type)); } -status_t preProcessImage(Bundle* bundle, const sp& assets, +status_t preProcessImage(const Bundle* bundle, const sp& assets, const sp& file, String8* outNewLeafName) { String8 ext(file->getPath().getPathExtension()); @@ -957,6 +1136,10 @@ status_t preProcessImage(Bundle* bundle, const sp& assets, String8 printableName(file->getPrintableSource()); + if (bundle->getVerbose()) { + printf("Processing image: %s\n", printableName.string()); + } + png_structp read_ptr = NULL; png_infop read_info = NULL; FILE* fp; @@ -1057,7 +1240,132 @@ bail: return error; } +status_t preProcessImageToCache(const Bundle* bundle, const String8& source, const String8& dest) +{ + png_structp read_ptr = NULL; + png_infop read_info = NULL; + + FILE* fp; + + image_info imageInfo; + + png_structp write_ptr = NULL; + png_infop write_info = NULL; + + status_t error = UNKNOWN_ERROR; + + if (bundle->getVerbose()) { + printf("Processing image to cache: %s => %s\n", source.string(), dest.string()); + } + + // Get a file handler to read from + fp = fopen(source.string(),"rb"); + if (fp == NULL) { + fprintf(stderr, "%s ERROR: Unable to open PNG file\n", source.string()); + return error; + } + + // Call libpng to get a struct to read image data into + read_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); + if (!read_ptr) { + fclose(fp); + png_destroy_read_struct(&read_ptr, &read_info,NULL); + return error; + } + // Call libpng to get a struct to read image info into + read_info = png_create_info_struct(read_ptr); + if (!read_info) { + fclose(fp); + png_destroy_read_struct(&read_ptr, &read_info,NULL); + return error; + } + + // Set a jump point for libpng to long jump back to on error + if (setjmp(png_jmpbuf(read_ptr))) { + fclose(fp); + png_destroy_read_struct(&read_ptr, &read_info,NULL); + return error; + } + + // Set up libpng to read from our file. + png_init_io(read_ptr,fp); + + // Actually read data from the file + read_png(source.string(), read_ptr, read_info, &imageInfo); + + // We're done reading so we can clean up + // Find old file size before releasing handle + fseek(fp, 0, SEEK_END); + size_t oldSize = (size_t)ftell(fp); + fclose(fp); + png_destroy_read_struct(&read_ptr, &read_info,NULL); + + // Check to see if we're dealing with a 9-patch + // If we are, process appropriately + if (source.getBasePath().getPathExtension() == ".9") { + if (do_9patch(source.string(), &imageInfo) != NO_ERROR) { + return error; + } + } + + // Call libpng to create a structure to hold the processed image data + // that can be written to disk + write_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); + if (!write_ptr) { + png_destroy_write_struct(&write_ptr, &write_info); + return error; + } + + // Call libpng to create a structure to hold processed image info that can + // be written to disk + write_info = png_create_info_struct(write_ptr); + if (!write_info) { + png_destroy_write_struct(&write_ptr, &write_info); + return error; + } + + // Open up our destination file for writing + fp = fopen(dest.string(), "wb"); + if (!fp) { + fprintf(stderr, "%s ERROR: Unable to open PNG file\n", dest.string()); + png_destroy_write_struct(&write_ptr, &write_info); + return error; + } + + // Set up libpng to write to our file + png_init_io(write_ptr, fp); + + // Set up a jump for libpng to long jump back on on errors + if (setjmp(png_jmpbuf(write_ptr))) { + fclose(fp); + png_destroy_write_struct(&write_ptr, &write_info); + return error; + } + + // Actually write out to the new png + write_png(dest.string(), write_ptr, write_info, imageInfo, + bundle->getGrayscaleTolerance()); + + if (bundle->getVerbose()) { + // Find the size of our new file + FILE* reader = fopen(dest.string(), "rb"); + fseek(reader, 0, SEEK_END); + size_t newSize = (size_t)ftell(reader); + fclose(reader); + + float factor = ((float)newSize)/oldSize; + int percent = (int)(factor*100); + printf(" (processed image to cache entry %s: %d%% size of source)\n", + dest.string(), percent); + } + + //Clean up + fclose(fp); + png_destroy_write_struct(&write_ptr, &write_info); + + return NO_ERROR; +} status_t postProcessImage(const sp& assets, ResourceTable* table, const sp& file)