diff options
author | Mike Lockwood <lockwood@google.com> | 2013-08-28 09:44:17 -0700 |
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committer | Mike Lockwood <lockwood@google.com> | 2013-08-28 09:44:17 -0700 |
commit | 9f6a119c8aa276432ece4fe2118bd8a3c9b1067e (patch) | |
tree | 1391656f9ad624aa99d4c7d2880d38121801a424 /tools/aapt/Images.cpp | |
parent | 647b6f5ed276bf93d95e5801e5e8af2802ef5fbb (diff) |
Move frameworks/base/tools/ to frameworks/tools/
Change-Id: I3ffafdab27cc4aca256c3a5806b630795b75d5c8
Diffstat (limited to 'tools/aapt/Images.cpp')
-rw-r--r-- | tools/aapt/Images.cpp | 1387 |
1 files changed, 0 insertions, 1387 deletions
diff --git a/tools/aapt/Images.cpp b/tools/aapt/Images.cpp deleted file mode 100644 index b2cbf49843af..000000000000 --- a/tools/aapt/Images.cpp +++ /dev/null @@ -1,1387 +0,0 @@ -// -// Copyright 2006 The Android Open Source Project -// -// Build resource files from raw assets. -// - -#define PNG_INTERNAL - -#include "Images.h" - -#include <androidfw/ResourceTypes.h> -#include <utils/ByteOrder.h> - -#include <png.h> -#include <zlib.h> - -#define NOISY(x) //x - -static void -png_write_aapt_file(png_structp png_ptr, png_bytep data, png_size_t length) -{ - AaptFile* aaptfile = (AaptFile*) png_get_io_ptr(png_ptr); - status_t err = aaptfile->writeData(data, length); - if (err != NO_ERROR) { - png_error(png_ptr, "Write Error"); - } -} - - -static void -png_flush_aapt_file(png_structp png_ptr) -{ -} - -// This holds an image as 8bpp RGBA. -struct image_info -{ - image_info() : rows(NULL), is9Patch(false), allocRows(NULL) { } - ~image_info() { - if (rows && rows != allocRows) { - free(rows); - } - if (allocRows) { - for (int i=0; i<(int)allocHeight; i++) { - free(allocRows[i]); - } - free(allocRows); - } - free(info9Patch.xDivs); - free(info9Patch.yDivs); - free(info9Patch.colors); - } - - png_uint_32 width; - png_uint_32 height; - png_bytepp rows; - - // 9-patch 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; -}; - -static void read_png(const char* imageName, - png_structp read_ptr, png_infop read_info, - image_info* outImageInfo) -{ - int color_type; - int bit_depth, interlace_type, compression_type; - int i; - - png_read_info(read_ptr, read_info); - - png_get_IHDR(read_ptr, read_info, &outImageInfo->width, - &outImageInfo->height, &bit_depth, &color_type, - &interlace_type, &compression_type, NULL); - - //printf("Image %s:\n", imageName); - //printf("color_type=%d, bit_depth=%d, interlace_type=%d, compression_type=%d\n", - // color_type, bit_depth, interlace_type, compression_type); - - if (color_type == PNG_COLOR_TYPE_PALETTE) - png_set_palette_to_rgb(read_ptr); - - if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) - png_set_expand_gray_1_2_4_to_8(read_ptr); - - if (png_get_valid(read_ptr, read_info, PNG_INFO_tRNS)) { - //printf("Has PNG_INFO_tRNS!\n"); - png_set_tRNS_to_alpha(read_ptr); - } - - if (bit_depth == 16) - png_set_strip_16(read_ptr); - - if ((color_type&PNG_COLOR_MASK_ALPHA) == 0) - png_set_add_alpha(read_ptr, 0xFF, PNG_FILLER_AFTER); - - if (color_type == PNG_COLOR_TYPE_GRAY || color_type == PNG_COLOR_TYPE_GRAY_ALPHA) - png_set_gray_to_rgb(read_ptr); - - png_read_update_info(read_ptr, read_info); - - outImageInfo->rows = (png_bytepp)malloc( - outImageInfo->height * sizeof(png_bytep)); - outImageInfo->allocHeight = outImageInfo->height; - outImageInfo->allocRows = outImageInfo->rows; - - png_set_rows(read_ptr, read_info, outImageInfo->rows); - - for (i = 0; i < (int)outImageInfo->height; i++) - { - outImageInfo->rows[i] = (png_bytep) - malloc(png_get_rowbytes(read_ptr, read_info)); - } - - png_read_image(read_ptr, outImageInfo->rows); - - png_read_end(read_ptr, read_info); - - NOISY(printf("Image %s: w=%d, h=%d, d=%d, colors=%d, inter=%d, comp=%d\n", - imageName, - (int)outImageInfo->width, (int)outImageInfo->height, - bit_depth, color_type, - interlace_type, compression_type)); - - png_get_IHDR(read_ptr, read_info, &outImageInfo->width, - &outImageInfo->height, &bit_depth, &color_type, - &interlace_type, &compression_type, NULL); -} - -#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 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 TICK_TYPE_NONE; - } - if (p[0] != 0 || p[1] != 0 || p[2] != 0) { - *outError = "Ticks in transparent frame must be black or red"; - } - return TICK_TYPE_TICK; - } - - if (p[3] != 0xFF) { - *outError = "White frame must be a solid color (no alpha)"; - } - 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 or red"; - return TICK_TYPE_NONE; - } - return TICK_TYPE_TICK; -} - -enum { - TICK_START, - TICK_INSIDE_1, - TICK_OUTSIDE_1 -}; - -static status_t get_horizontal_ticks( - png_bytep row, int width, bool transparent, bool required, - int32_t* outLeft, int32_t* outRight, const char** outError, - uint8_t* outDivs, bool multipleAllowed) -{ - int i; - *outLeft = *outRight = -1; - int state = TICK_START; - bool found = false; - - for (i=1; i<width-1; i++) { - if (TICK_TYPE_TICK == tick_type(row+i*4, transparent, outError)) { - if (state == TICK_START || - (state == TICK_OUTSIDE_1 && multipleAllowed)) { - *outLeft = i-1; - *outRight = width-2; - found = true; - if (outDivs != NULL) { - *outDivs += 2; - } - state = TICK_INSIDE_1; - } else if (state == TICK_OUTSIDE_1) { - *outError = "Can't have more than one marked region along edge"; - *outLeft = i; - return UNKNOWN_ERROR; - } - } else if (*outError == NULL) { - if (state == TICK_INSIDE_1) { - // We're done with this div. Move on to the next. - *outRight = i-1; - outRight += 2; - outLeft += 2; - state = TICK_OUTSIDE_1; - } - } else { - *outLeft = i; - return UNKNOWN_ERROR; - } - } - - if (required && !found) { - *outError = "No marked region found along edge"; - *outLeft = -1; - return UNKNOWN_ERROR; - } - - return NO_ERROR; -} - -static status_t get_vertical_ticks( - png_bytepp rows, int offset, int height, bool transparent, bool required, - int32_t* outTop, int32_t* outBottom, const char** outError, - uint8_t* outDivs, bool multipleAllowed) -{ - int i; - *outTop = *outBottom = -1; - int state = TICK_START; - bool found = false; - - for (i=1; i<height-1; i++) { - if (TICK_TYPE_TICK == tick_type(rows[i]+offset, transparent, outError)) { - if (state == TICK_START || - (state == TICK_OUTSIDE_1 && multipleAllowed)) { - *outTop = i-1; - *outBottom = height-2; - found = true; - if (outDivs != NULL) { - *outDivs += 2; - } - state = TICK_INSIDE_1; - } else if (state == TICK_OUTSIDE_1) { - *outError = "Can't have more than one marked region along edge"; - *outTop = i; - return UNKNOWN_ERROR; - } - } else if (*outError == NULL) { - if (state == TICK_INSIDE_1) { - // We're done with this div. Move on to the next. - *outBottom = i-1; - outTop += 2; - outBottom += 2; - state = TICK_OUTSIDE_1; - } - } else { - *outTop = i; - return UNKNOWN_ERROR; - } - } - - if (required && !found) { - *outError = "No marked region found along edge"; - *outTop = -1; - return UNKNOWN_ERROR; - } - - return NO_ERROR; -} - -static status_t get_horizontal_layout_bounds_ticks( - png_bytep row, int width, bool transparent, bool required, - int32_t* outLeft, int32_t* outRight, const char** outError) -{ - int i; - *outLeft = *outRight = 0; - - // Look for left tick - if (TICK_TYPE_LAYOUT_BOUNDS == tick_type(row + 4, transparent, outError)) { - // Starting with a layout padding tick - i = 1; - while (i < width - 1) { - (*outLeft)++; - i++; - int tick = tick_type(row + i * 4, transparent, outError); - if (tick != TICK_TYPE_LAYOUT_BOUNDS) { - break; - } - } - } - - // Look for right tick - if (TICK_TYPE_LAYOUT_BOUNDS == tick_type(row + (width - 2) * 4, transparent, outError)) { - // Ending with a layout padding tick - i = width - 2; - while (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) -{ - png_bytep color = rows[top] + left*4; - - if (left > right || top > bottom) { - return Res_png_9patch::TRANSPARENT_COLOR; - } - - while (top <= bottom) { - for (int i = left; i <= right; i++) { - png_bytep p = rows[top]+i*4; - if (color[3] == 0) { - if (p[3] != 0) { - return Res_png_9patch::NO_COLOR; - } - } else if (p[0] != color[0] || p[1] != color[1] - || p[2] != color[2] || p[3] != color[3]) { - return Res_png_9patch::NO_COLOR; - } - } - top++; - } - - if (color[3] == 0) { - return Res_png_9patch::TRANSPARENT_COLOR; - } - return (color[3]<<24) | (color[0]<<16) | (color[1]<<8) | color[2]; -} - -static void select_patch( - int which, int front, int back, int size, int* start, int* end) -{ - switch (which) { - case 0: - *start = 0; - *end = front-1; - break; - case 1: - *start = front; - *end = back-1; - break; - case 2: - *start = back; - *end = size-1; - break; - } -} - -static uint32_t get_color(image_info* image, int hpatch, int vpatch) -{ - int left, right, top, bottom; - select_patch( - hpatch, image->info9Patch.xDivs[0], image->info9Patch.xDivs[1], - image->width, &left, &right); - select_patch( - vpatch, image->info9Patch.yDivs[0], image->info9Patch.yDivs[1], - image->height, &top, &bottom); - //printf("Selecting h=%d v=%d: (%d,%d)-(%d,%d)\n", - // hpatch, vpatch, left, top, right, bottom); - const uint32_t c = get_color(image->rows, left, top, right, bottom); - NOISY(printf("Color in (%d,%d)-(%d,%d): #%08x\n", left, top, right, bottom, c)); - return c; -} - -static status_t do_9patch(const char* imageName, image_info* image) -{ - image->is9Patch = true; - - int W = image->width; - int H = image->height; - int i, j; - - 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; - uint8_t numYDivs = 0; - int8_t numColors; - int numRows; - int numCols; - int top; - int left; - int right; - int bottom; - memset(xDivs, -1, maxSizeXDivs); - memset(yDivs, -1, maxSizeYDivs); - 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 = NULL; - - int colorIndex = 0; - - // Validate size... - if (W < 3 || H < 3) { - errorMsg = "Image must be at least 3x3 (1x1 without frame) pixels"; - goto getout; - } - - // Validate frame... - if (!transparent && - (p[0] != 0xFF || p[1] != 0xFF || p[2] != 0xFF || p[3] != 0xFF)) { - errorMsg = "Must have one-pixel frame that is either transparent or white"; - goto getout; - } - - // Find left and right of sizing areas... - if (get_horizontal_ticks(p, W, transparent, true, &xDivs[0], - &xDivs[1], &errorMsg, &numXDivs, true) != NO_ERROR) { - errorPixel = xDivs[0]; - errorEdge = "top"; - goto getout; - } - - // Find top and bottom of sizing areas... - if (get_vertical_ticks(image->rows, 0, H, transparent, true, &yDivs[0], - &yDivs[1], &errorMsg, &numYDivs, true) != NO_ERROR) { - errorPixel = yDivs[0]; - errorEdge = "left"; - goto getout; - } - - // Find left and right of padding area... - if (get_horizontal_ticks(image->rows[H-1], W, transparent, false, &image->info9Patch.paddingLeft, - &image->info9Patch.paddingRight, &errorMsg, NULL, false) != NO_ERROR) { - errorPixel = image->info9Patch.paddingLeft; - errorEdge = "bottom"; - goto getout; - } - - // Find top and bottom of padding area... - if (get_vertical_ticks(image->rows, (W-1)*4, H, transparent, false, &image->info9Patch.paddingTop, - &image->info9Patch.paddingBottom, &errorMsg, NULL, false) != NO_ERROR) { - errorPixel = image->info9Patch.paddingTop; - errorEdge = "right"; - 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; - image->info9Patch.xDivs = xDivs; - image->info9Patch.yDivs = yDivs; - - // If padding is not yet specified, take values from size. - if (image->info9Patch.paddingLeft < 0) { - image->info9Patch.paddingLeft = xDivs[0]; - image->info9Patch.paddingRight = W - 2 - xDivs[1]; - } else { - // Adjust value to be correct! - image->info9Patch.paddingRight = W - 2 - image->info9Patch.paddingRight; - } - if (image->info9Patch.paddingTop < 0) { - image->info9Patch.paddingTop = yDivs[0]; - image->info9Patch.paddingBottom = H - 2 - yDivs[1]; - } else { - // Adjust value to be correct! - image->info9Patch.paddingBottom = H - 2 - image->info9Patch.paddingBottom; - } - - NOISY(printf("Size ticks for %s: x0=%d, x1=%d, y0=%d, y1=%d\n", imageName, - image->info9Patch.xDivs[0], image->info9Patch.xDivs[1], - image->info9Patch.yDivs[0], image->info9Patch.yDivs[1])); - NOISY(printf("padding ticks for %s: l=%d, r=%d, t=%d, b=%d\n", imageName, - image->info9Patch.paddingLeft, image->info9Patch.paddingRight, - image->info9Patch.paddingTop, image->info9Patch.paddingBottom)); - - // Remove frame from image. - image->rows = (png_bytepp)malloc((H-2) * sizeof(png_bytep)); - for (i=0; i<(H-2); i++) { - image->rows[i] = image->allocRows[i+1]; - memmove(image->rows[i], image->rows[i]+4, (W-2)*4); - } - image->width -= 2; - W = image->width; - image->height -= 2; - H = image->height; - - // Figure out the number of rows and columns in the N-patch - numCols = numXDivs + 1; - if (xDivs[0] == 0) { // Column 1 is strechable - numCols--; - } - if (xDivs[numXDivs - 1] == W) { - numCols--; - } - numRows = numYDivs + 1; - if (yDivs[0] == 0) { // Row 1 is strechable - numRows--; - } - 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)); - - // Fill in color information for each patch. - - uint32_t c; - top = 0; - - // The first row always starts with the top being at y=0 and the bottom - // being either yDivs[1] (if yDivs[0]=0) of yDivs[0]. In the former case - // the first row is stretchable along the Y axis, otherwise it is fixed. - // The last row always ends with the bottom being bitmap.height and the top - // being either yDivs[numYDivs-2] (if yDivs[numYDivs-1]=bitmap.height) or - // yDivs[numYDivs-1]. In the former case the last row is stretchable along - // the Y axis, otherwise it is fixed. - // - // The first and last columns are similarly treated with respect to the X - // axis. - // - // The above is to help explain some of the special casing that goes on the - // code below. - - // The initial yDiv and whether the first row is considered stretchable or - // not depends on whether yDiv[0] was zero or not. - for (j = (yDivs[0] == 0 ? 1 : 0); - j <= numYDivs && top < H; - j++) { - if (j == numYDivs) { - bottom = H; - } else { - bottom = yDivs[j]; - } - left = 0; - // The initial xDiv and whether the first column is considered - // stretchable or not depends on whether xDiv[0] was zero or not. - for (i = xDivs[0] == 0 ? 1 : 0; - i <= numXDivs && left < W; - i++) { - if (i == numXDivs) { - right = W; - } else { - right = xDivs[i]; - } - c = get_color(image->rows, left, top, right - 1, bottom - 1); - image->info9Patch.colors[colorIndex++] = c; - NOISY(if (c != Res_png_9patch::NO_COLOR) hasColor = true); - left = right; - } - top = bottom; - } - - assert(colorIndex == numColors); - - for (i=0; i<numColors; i++) { - if (hasColor) { - if (i == 0) printf("Colors in %s:\n ", imageName); - printf(" #%08x", image->info9Patch.colors[i]); - if (i == numColors - 1) printf("\n"); - } - } - - image->is9Patch = true; - image->info9Patch.deviceToFile(); - -getout: - if (errorMsg) { - fprintf(stderr, - "ERROR: 9-patch image %s malformed.\n" - " %s.\n", imageName, errorMsg); - 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; - } - return NO_ERROR; -} - -static void checkNinePatchSerialization(Res_png_9patch* inPatch, void * data) -{ - if (sizeof(void*) != sizeof(int32_t)) { - // can't deserialize on a non-32 bit system - return; - } - size_t patchSize = inPatch->serializedSize(); - void * newData = malloc(patchSize); - memcpy(newData, data, patchSize); - Res_png_9patch* outPatch = inPatch->deserialize(newData); - // deserialization is done in place, so outPatch == newData - assert(outPatch == newData); - assert(outPatch->numXDivs == inPatch->numXDivs); - assert(outPatch->numYDivs == inPatch->numYDivs); - assert(outPatch->paddingLeft == inPatch->paddingLeft); - assert(outPatch->paddingRight == inPatch->paddingRight); - assert(outPatch->paddingTop == inPatch->paddingTop); - assert(outPatch->paddingBottom == inPatch->paddingBottom); - for (int i = 0; i < outPatch->numXDivs; i++) { - assert(outPatch->xDivs[i] == inPatch->xDivs[i]); - } - for (int i = 0; i < outPatch->numYDivs; i++) { - assert(outPatch->yDivs[i] == inPatch->yDivs[i]); - } - for (int i = 0; i < outPatch->numColors; i++) { - assert(outPatch->colors[i] == inPatch->colors[i]); - } - free(newData); -} - -static bool patch_equals(Res_png_9patch& patch1, Res_png_9patch& patch2) { - if (!(patch1.numXDivs == patch2.numXDivs && - patch1.numYDivs == patch2.numYDivs && - patch1.numColors == patch2.numColors && - patch1.paddingLeft == patch2.paddingLeft && - patch1.paddingRight == patch2.paddingRight && - patch1.paddingTop == patch2.paddingTop && - patch1.paddingBottom == patch2.paddingBottom)) { - return false; - } - for (int i = 0; i < patch1.numColors; i++) { - if (patch1.colors[i] != patch2.colors[i]) { - return false; - } - } - for (int i = 0; i < patch1.numXDivs; i++) { - if (patch1.xDivs[i] != patch2.xDivs[i]) { - return false; - } - } - for (int i = 0; i < patch1.numYDivs; i++) { - if (patch1.yDivs[i] != patch2.yDivs[i]) { - return false; - } - } - return true; -} - -static void dump_image(int w, int h, png_bytepp rows, int color_type) -{ - int i, j, rr, gg, bb, aa; - - int bpp; - if (color_type == PNG_COLOR_TYPE_PALETTE || color_type == PNG_COLOR_TYPE_GRAY) { - bpp = 1; - } 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 - bpp = 4; - } else { - printf("Unknown color type %d.\n", color_type); - } - - for (j = 0; j < h; j++) { - png_bytep row = rows[j]; - for (i = 0; i < w; i++) { - rr = row[0]; - gg = row[1]; - bb = row[2]; - aa = row[3]; - row += bpp; - - if (i == 0) { - printf("Row %d:", j); - } - switch (bpp) { - case 1: - printf(" (%d)", rr); - break; - case 2: - printf(" (%d %d", rr, gg); - break; - case 3: - printf(" (%d %d %d)", rr, gg, bb); - break; - case 4: - printf(" (%d %d %d %d)", rr, gg, bb, aa); - break; - } - if (i == (w - 1)) { - NOISY(printf("\n")); - } - } - } -} - -#define MAX(a,b) ((a)>(b)?(a):(b)) -#define ABS(a) ((a)<0?-(a):(a)) - -static void analyze_image(const char *imageName, image_info &imageInfo, int grayscaleTolerance, - png_colorp rgbPalette, png_bytep alphaPalette, - int *paletteEntries, bool *hasTransparency, int *colorType, - png_bytepp outRows) -{ - int w = imageInfo.width; - int h = imageInfo.height; - int i, j, rr, gg, bb, aa, idx; - uint32_t colors[256], col; - int num_colors = 0; - int maxGrayDeviation = 0; - - bool isOpaque = true; - bool isPalette = true; - bool isGrayscale = true; - - // Scan the entire image and determine if: - // 1. Every pixel has R == G == B (grayscale) - // 2. Every pixel has A == 255 (opaque) - // 3. There are no more than 256 distinct RGBA colors - - // NOISY(printf("Initial image data:\n")); - // dump_image(w, h, imageInfo.rows, PNG_COLOR_TYPE_RGB_ALPHA); - - for (j = 0; j < h; j++) { - png_bytep row = imageInfo.rows[j]; - png_bytep out = outRows[j]; - for (i = 0; i < w; i++) { - rr = *row++; - gg = *row++; - bb = *row++; - aa = *row++; - - int odev = maxGrayDeviation; - maxGrayDeviation = MAX(ABS(rr - gg), maxGrayDeviation); - maxGrayDeviation = MAX(ABS(gg - bb), maxGrayDeviation); - maxGrayDeviation = MAX(ABS(bb - rr), maxGrayDeviation); - if (maxGrayDeviation > odev) { - NOISY(printf("New max dev. = %d at pixel (%d, %d) = (%d %d %d %d)\n", - maxGrayDeviation, i, j, rr, gg, bb, aa)); - } - - // Check if image is really grayscale - if (isGrayscale) { - if (rr != gg || rr != bb) { - NOISY(printf("Found a non-gray pixel at %d, %d = (%d %d %d %d)\n", - i, j, rr, gg, bb, aa)); - isGrayscale = false; - } - } - - // Check if image is really opaque - if (isOpaque) { - if (aa != 0xff) { - NOISY(printf("Found a non-opaque pixel at %d, %d = (%d %d %d %d)\n", - i, j, rr, gg, bb, aa)); - isOpaque = false; - } - } - - // Check if image is really <= 256 colors - if (isPalette) { - col = (uint32_t) ((rr << 24) | (gg << 16) | (bb << 8) | aa); - bool match = false; - for (idx = 0; idx < num_colors; idx++) { - if (colors[idx] == col) { - match = true; - break; - } - } - - // Write the palette index for the pixel to outRows optimistically - // We might overwrite it later if we decide to encode as gray or - // gray + alpha - *out++ = idx; - if (!match) { - if (num_colors == 256) { - NOISY(printf("Found 257th color at %d, %d\n", i, j)); - isPalette = false; - } else { - colors[num_colors++] = col; - } - } - } - } - } - - *paletteEntries = 0; - *hasTransparency = !isOpaque; - int bpp = isOpaque ? 3 : 4; - int paletteSize = w * h + bpp * num_colors; - - NOISY(printf("isGrayscale = %s\n", isGrayscale ? "true" : "false")); - NOISY(printf("isOpaque = %s\n", isOpaque ? "true" : "false")); - NOISY(printf("isPalette = %s\n", isPalette ? "true" : "false")); - NOISY(printf("Size w/ palette = %d, gray+alpha = %d, rgb(a) = %d\n", - paletteSize, 2 * w * h, bpp * w * h)); - NOISY(printf("Max gray deviation = %d, tolerance = %d\n", maxGrayDeviation, grayscaleTolerance)); - - // Choose the best color type for the image. - // 1. Opaque gray - use COLOR_TYPE_GRAY at 1 byte/pixel - // 2. Gray + alpha - use COLOR_TYPE_PALETTE if the number of distinct combinations - // is sufficiently small, otherwise use COLOR_TYPE_GRAY_ALPHA - // 3. RGB(A) - use COLOR_TYPE_PALETTE if the number of distinct colors is sufficiently - // small, otherwise use COLOR_TYPE_RGB{_ALPHA} - if (isGrayscale) { - if (isOpaque) { - *colorType = PNG_COLOR_TYPE_GRAY; // 1 byte/pixel - } else { - // Use a simple heuristic to determine whether using a palette will - // save space versus using gray + alpha for each pixel. - // This doesn't take into account chunk overhead, filtering, LZ - // compression, etc. - if (isPalette && (paletteSize < 2 * w * h)) { - *colorType = PNG_COLOR_TYPE_PALETTE; // 1 byte/pixel + 4 bytes/color - } else { - *colorType = PNG_COLOR_TYPE_GRAY_ALPHA; // 2 bytes per pixel - } - } - } else if (isPalette && (paletteSize < bpp * w * h)) { - *colorType = PNG_COLOR_TYPE_PALETTE; - } else { - if (maxGrayDeviation <= grayscaleTolerance) { - printf("%s: forcing image to gray (max deviation = %d)\n", imageName, maxGrayDeviation); - *colorType = isOpaque ? PNG_COLOR_TYPE_GRAY : PNG_COLOR_TYPE_GRAY_ALPHA; - } else { - *colorType = isOpaque ? PNG_COLOR_TYPE_RGB : PNG_COLOR_TYPE_RGB_ALPHA; - } - } - - // Perform postprocessing of the image or palette data based on the final - // color type chosen - - if (*colorType == PNG_COLOR_TYPE_PALETTE) { - // Create separate RGB and Alpha palettes and set the number of colors - *paletteEntries = num_colors; - - // Create the RGB and alpha palettes - for (int idx = 0; idx < num_colors; idx++) { - col = colors[idx]; - rgbPalette[idx].red = (png_byte) ((col >> 24) & 0xff); - rgbPalette[idx].green = (png_byte) ((col >> 16) & 0xff); - rgbPalette[idx].blue = (png_byte) ((col >> 8) & 0xff); - alphaPalette[idx] = (png_byte) (col & 0xff); - } - } else if (*colorType == PNG_COLOR_TYPE_GRAY || *colorType == PNG_COLOR_TYPE_GRAY_ALPHA) { - // If the image is gray or gray + alpha, compact the pixels into outRows - for (j = 0; j < h; j++) { - png_bytep row = imageInfo.rows[j]; - png_bytep out = outRows[j]; - for (i = 0; i < w; i++) { - rr = *row++; - gg = *row++; - bb = *row++; - aa = *row++; - - if (isGrayscale) { - *out++ = rr; - } else { - *out++ = (png_byte) (rr * 0.2126f + gg * 0.7152f + bb * 0.0722f); - } - if (!isOpaque) { - *out++ = aa; - } - } - } - } -} - - -static void write_png(const char* imageName, - png_structp write_ptr, png_infop write_info, - image_info& imageInfo, int grayscaleTolerance) -{ - bool optimize = true; - png_uint_32 width, height; - int color_type; - int bit_depth, interlace_type, compression_type; - int i; - - png_unknown_chunk unknowns[2]; - unknowns[0].data = NULL; - unknowns[1].data = NULL; - - png_bytepp outRows = (png_bytepp) malloc((int) imageInfo.height * sizeof(png_bytep)); - if (outRows == (png_bytepp) 0) { - printf("Can't allocate output buffer!\n"); - exit(1); - } - for (i = 0; i < (int) imageInfo.height; i++) { - outRows[i] = (png_bytep) malloc(2 * (int) imageInfo.width); - if (outRows[i] == (png_bytep) 0) { - printf("Can't allocate output buffer!\n"); - exit(1); - } - } - - png_set_compression_level(write_ptr, Z_BEST_COMPRESSION); - - NOISY(printf("Writing image %s: w = %d, h = %d\n", imageName, - (int) imageInfo.width, (int) imageInfo.height)); - - png_color rgbPalette[256]; - png_byte alphaPalette[256]; - bool hasTransparency; - int paletteEntries; - - 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", - imageName, paletteEntries, - hasTransparency ? " (with alpha)" : "")); - break; - case PNG_COLOR_TYPE_GRAY: - NOISY(printf("Image %s is opaque gray, using PNG_COLOR_TYPE_GRAY\n", imageName)); - break; - case PNG_COLOR_TYPE_GRAY_ALPHA: - NOISY(printf("Image %s is gray + alpha, using PNG_COLOR_TYPE_GRAY_ALPHA\n", imageName)); - break; - case PNG_COLOR_TYPE_RGB: - NOISY(printf("Image %s is opaque RGB, using PNG_COLOR_TYPE_RGB\n", imageName)); - break; - case PNG_COLOR_TYPE_RGB_ALPHA: - NOISY(printf("Image %s is RGB + alpha, using PNG_COLOR_TYPE_RGB_ALPHA\n", imageName)); - break; - } - - png_set_IHDR(write_ptr, write_info, imageInfo.width, imageInfo.height, - 8, color_type, PNG_INTERLACE_NONE, - PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT); - - if (color_type == PNG_COLOR_TYPE_PALETTE) { - png_set_PLTE(write_ptr, write_info, rgbPalette, paletteEntries); - if (hasTransparency) { - png_set_tRNS(write_ptr, write_info, alphaPalette, paletteEntries, (png_color_16p) 0); - } - png_set_filter(write_ptr, 0, PNG_NO_FILTERS); - } else { - png_set_filter(write_ptr, 0, PNG_ALL_FILTERS); - } - - 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[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[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; - } - - for (int i = 0; i < chunk_count; i++) { - unknowns[i].location = PNG_HAVE_PLTE; - } - png_set_keep_unknown_chunks(write_ptr, PNG_HANDLE_CHUNK_ALWAYS, - chunk_names, chunk_count); - png_set_unknown_chunks(write_ptr, write_info, unknowns, chunk_count); -#if PNG_LIBPNG_VER < 10600 - /* Deal with unknown chunk location bug in 1.5.x and earlier */ - 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); - } -#endif - } - - - png_write_info(write_ptr, write_info); - - png_bytepp rows; - if (color_type == PNG_COLOR_TYPE_RGB || color_type == PNG_COLOR_TYPE_RGB_ALPHA) { - if (color_type == PNG_COLOR_TYPE_RGB) { - png_set_filler(write_ptr, 0, PNG_FILLER_AFTER); - } - rows = imageInfo.rows; - } else { - rows = outRows; - } - png_write_image(write_ptr, rows); - -// NOISY(printf("Final image data:\n")); -// dump_image(imageInfo.width, imageInfo.height, rows, color_type); - - png_write_end(write_ptr, write_info); - - for (i = 0; i < (int) imageInfo.height; i++) { - 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, - &compression_type, NULL); - - NOISY(printf("Image written: w=%d, h=%d, d=%d, colors=%d, inter=%d, comp=%d\n", - (int)width, (int)height, bit_depth, color_type, interlace_type, - compression_type)); -} - -status_t preProcessImage(const Bundle* bundle, const sp<AaptAssets>& assets, - const sp<AaptFile>& file, String8* outNewLeafName) -{ - String8 ext(file->getPath().getPathExtension()); - - // We currently only process PNG images. - if (strcmp(ext.string(), ".png") != 0) { - return NO_ERROR; - } - - // Example of renaming a file: - //*outNewLeafName = file->getPath().getBasePath().getFileName(); - //outNewLeafName->append(".nupng"); - - 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; - - image_info imageInfo; - - png_structp write_ptr = NULL; - png_infop write_info = NULL; - - status_t error = UNKNOWN_ERROR; - - const size_t nameLen = file->getPath().length(); - - fp = fopen(file->getSourceFile().string(), "rb"); - if (fp == NULL) { - fprintf(stderr, "%s: ERROR: Unable to open PNG file\n", printableName.string()); - goto bail; - } - - read_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, 0, (png_error_ptr)NULL, - (png_error_ptr)NULL); - if (!read_ptr) { - goto bail; - } - - read_info = png_create_info_struct(read_ptr); - if (!read_info) { - goto bail; - } - - if (setjmp(png_jmpbuf(read_ptr))) { - goto bail; - } - - png_init_io(read_ptr, fp); - - read_png(printableName.string(), read_ptr, read_info, &imageInfo); - - if (nameLen > 6) { - const char* name = file->getPath().string(); - if (name[nameLen-5] == '9' && name[nameLen-6] == '.') { - if (do_9patch(printableName.string(), &imageInfo) != NO_ERROR) { - goto bail; - } - } - } - - write_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, 0, (png_error_ptr)NULL, - (png_error_ptr)NULL); - if (!write_ptr) - { - goto bail; - } - - write_info = png_create_info_struct(write_ptr); - if (!write_info) - { - goto bail; - } - - png_set_write_fn(write_ptr, (void*)file.get(), - png_write_aapt_file, png_flush_aapt_file); - - if (setjmp(png_jmpbuf(write_ptr))) - { - goto bail; - } - - write_png(printableName.string(), write_ptr, write_info, imageInfo, - bundle->getGrayscaleTolerance()); - - error = NO_ERROR; - - if (bundle->getVerbose()) { - fseek(fp, 0, SEEK_END); - size_t oldSize = (size_t)ftell(fp); - size_t newSize = file->getSize(); - float factor = ((float)newSize)/oldSize; - int percent = (int)(factor*100); - printf(" (processed image %s: %d%% size of source)\n", printableName.string(), percent); - } - -bail: - if (read_ptr) { - png_destroy_read_struct(&read_ptr, &read_info, (png_infopp)NULL); - } - if (fp) { - fclose(fp); - } - if (write_ptr) { - png_destroy_write_struct(&write_ptr, &write_info); - } - - if (error != NO_ERROR) { - fprintf(stderr, "ERROR: Failure processing PNG image %s\n", - file->getPrintableSource().string()); - } - 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<AaptAssets>& assets, - ResourceTable* table, const sp<AaptFile>& file) -{ - String8 ext(file->getPath().getPathExtension()); - - // At this point, now that we have all the resource data, all we need to - // do is compile XML files. - if (strcmp(ext.string(), ".xml") == 0) { - return compileXmlFile(assets, file, table); - } - - return NO_ERROR; -} |