Images.cpp revision 47cd8e921db73e894f94ec4729ade90da50996f5
1282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski// 2282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski// Copyright 2006 The Android Open Source Project 3282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski// 4282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski// Build resource files from raw assets. 5282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski// 6282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 7282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski#define PNG_INTERNAL 8282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 9282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski#include "Images.h" 10282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 11282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski#include <androidfw/ResourceTypes.h> 12282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski#include <utils/ByteOrder.h> 13282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 14282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski#include <png.h> 15282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski#include <zlib.h> 16282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 17282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski#define NOISY(x) //x 18282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 19282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatic void 20282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskipng_write_aapt_file(png_structp png_ptr, png_bytep data, png_size_t length) 21282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 22282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski AaptFile* aaptfile = (AaptFile*) png_get_io_ptr(png_ptr); 23282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski status_t err = aaptfile->writeData(data, length); 24282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (err != NO_ERROR) { 25282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_error(png_ptr, "Write Error"); 26282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 27282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 28282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 29282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 30282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatic void 31282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskipng_flush_aapt_file(png_structp png_ptr) 32282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 33282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 34282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 35282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski// This holds an image as 8bpp RGBA. 36282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistruct image_info 37282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 386381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath image_info() : rows(NULL), is9Patch(false), 396381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath xDivs(NULL), yDivs(NULL), colors(NULL), allocRows(NULL) { } 406381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath 41282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski ~image_info() { 42282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (rows && rows != allocRows) { 43282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski free(rows); 44282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 45282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (allocRows) { 46282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (int i=0; i<(int)allocHeight; i++) { 47282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski free(allocRows[i]); 48282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 49282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski free(allocRows); 50282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 516381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath free(xDivs); 526381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath free(yDivs); 536381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath free(colors); 546381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath } 556381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath 566381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath void* serialize9patch() { 576381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath void* serialized = Res_png_9patch::serialize(info9Patch, xDivs, yDivs, colors); 586381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath reinterpret_cast<Res_png_9patch*>(serialized)->deviceToFile(); 596381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath return serialized; 60282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 61282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 62282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_uint_32 width; 63282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_uint_32 height; 64282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytepp rows; 65282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 66282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // 9-patch info. 67282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bool is9Patch; 68282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski Res_png_9patch info9Patch; 696381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath int32_t* xDivs; 706381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath int32_t* yDivs; 716381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath uint32_t* colors; 72282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 73282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Layout padding, if relevant 74282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bool haveLayoutBounds; 75282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int32_t layoutBoundsLeft; 76282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int32_t layoutBoundsTop; 77282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int32_t layoutBoundsRight; 78282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int32_t layoutBoundsBottom; 79282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 8047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik // Round rect outline description 8147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int32_t outlineInsetsLeft; 8247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int32_t outlineInsetsTop; 8347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int32_t outlineInsetsRight; 8447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int32_t outlineInsetsBottom; 8547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik float outlineRadius; 8647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik bool outlineFilled; 8747cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 88282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_uint_32 allocHeight; 89282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytepp allocRows; 90282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski}; 91282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 92859e19f97d481bf07c768087d8eb3031fac77aadJohn Reckstatic void log_warning(png_structp png_ptr, png_const_charp warning_message) 93859e19f97d481bf07c768087d8eb3031fac77aadJohn Reck{ 94859e19f97d481bf07c768087d8eb3031fac77aadJohn Reck const char* imageName = (const char*) png_get_error_ptr(png_ptr); 95859e19f97d481bf07c768087d8eb3031fac77aadJohn Reck fprintf(stderr, "%s: libpng warning: %s\n", imageName, warning_message); 96859e19f97d481bf07c768087d8eb3031fac77aadJohn Reck} 97859e19f97d481bf07c768087d8eb3031fac77aadJohn Reck 98282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatic void read_png(const char* imageName, 99282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_structp read_ptr, png_infop read_info, 100282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image_info* outImageInfo) 101282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 102282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int color_type; 103282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int bit_depth, interlace_type, compression_type; 104282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int i; 105282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 106859e19f97d481bf07c768087d8eb3031fac77aadJohn Reck png_set_error_fn(read_ptr, const_cast<char*>(imageName), 107859e19f97d481bf07c768087d8eb3031fac77aadJohn Reck NULL /* use default errorfn */, log_warning); 108282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_read_info(read_ptr, read_info); 109282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 110282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_get_IHDR(read_ptr, read_info, &outImageInfo->width, 111282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski &outImageInfo->height, &bit_depth, &color_type, 112282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski &interlace_type, &compression_type, NULL); 113282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 114282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski //printf("Image %s:\n", imageName); 115282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski //printf("color_type=%d, bit_depth=%d, interlace_type=%d, compression_type=%d\n", 116282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // color_type, bit_depth, interlace_type, compression_type); 117282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 118282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (color_type == PNG_COLOR_TYPE_PALETTE) 119282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_palette_to_rgb(read_ptr); 120282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 121282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8) 122282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_expand_gray_1_2_4_to_8(read_ptr); 123282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 124282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (png_get_valid(read_ptr, read_info, PNG_INFO_tRNS)) { 125282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski //printf("Has PNG_INFO_tRNS!\n"); 126282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_tRNS_to_alpha(read_ptr); 127282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 128282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 129282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (bit_depth == 16) 130282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_strip_16(read_ptr); 131282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 132282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if ((color_type&PNG_COLOR_MASK_ALPHA) == 0) 133282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_add_alpha(read_ptr, 0xFF, PNG_FILLER_AFTER); 134282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 135282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (color_type == PNG_COLOR_TYPE_GRAY || color_type == PNG_COLOR_TYPE_GRAY_ALPHA) 136282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_gray_to_rgb(read_ptr); 137282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 138859e19f97d481bf07c768087d8eb3031fac77aadJohn Reck png_set_interlace_handling(read_ptr); 139859e19f97d481bf07c768087d8eb3031fac77aadJohn Reck 140282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_read_update_info(read_ptr, read_info); 141282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 142282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski outImageInfo->rows = (png_bytepp)malloc( 143282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski outImageInfo->height * sizeof(png_bytep)); 144282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski outImageInfo->allocHeight = outImageInfo->height; 145282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski outImageInfo->allocRows = outImageInfo->rows; 146282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 147282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_rows(read_ptr, read_info, outImageInfo->rows); 148282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 149282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (i = 0; i < (int)outImageInfo->height; i++) 150282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski { 151282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski outImageInfo->rows[i] = (png_bytep) 152282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski malloc(png_get_rowbytes(read_ptr, read_info)); 153282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 154282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 155282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_read_image(read_ptr, outImageInfo->rows); 156282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 157282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_read_end(read_ptr, read_info); 158282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 159282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("Image %s: w=%d, h=%d, d=%d, colors=%d, inter=%d, comp=%d\n", 160282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski imageName, 161282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski (int)outImageInfo->width, (int)outImageInfo->height, 162282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bit_depth, color_type, 163282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski interlace_type, compression_type)); 164282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 165282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_get_IHDR(read_ptr, read_info, &outImageInfo->width, 166282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski &outImageInfo->height, &bit_depth, &color_type, 167282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski &interlace_type, &compression_type, NULL); 168282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 169282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 170282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski#define COLOR_TRANSPARENT 0 171282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski#define COLOR_WHITE 0xFFFFFFFF 172282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski#define COLOR_TICK 0xFF000000 173282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski#define COLOR_LAYOUT_BOUNDS_TICK 0xFF0000FF 174282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 175282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskienum { 176282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski TICK_TYPE_NONE, 177282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski TICK_TYPE_TICK, 178282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski TICK_TYPE_LAYOUT_BOUNDS, 179282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski TICK_TYPE_BOTH 180282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski}; 181282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 182282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatic int tick_type(png_bytep p, bool transparent, const char** outError) 183282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 184282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_uint_32 color = p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24); 185282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 186282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (transparent) { 187282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (p[3] == 0) { 188282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return TICK_TYPE_NONE; 189282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 190282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (color == COLOR_LAYOUT_BOUNDS_TICK) { 191282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return TICK_TYPE_LAYOUT_BOUNDS; 192282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 193282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (color == COLOR_TICK) { 194282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return TICK_TYPE_TICK; 195282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 196282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 197282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Error cases 198282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (p[3] != 0xff) { 199282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outError = "Frame pixels must be either solid or transparent (not intermediate alphas)"; 200282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return TICK_TYPE_NONE; 201282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 202282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (p[0] != 0 || p[1] != 0 || p[2] != 0) { 203282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outError = "Ticks in transparent frame must be black or red"; 204282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 205282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return TICK_TYPE_TICK; 206282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 207282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 208282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (p[3] != 0xFF) { 209282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outError = "White frame must be a solid color (no alpha)"; 210282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 211282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (color == COLOR_WHITE) { 212282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return TICK_TYPE_NONE; 213282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 214282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (color == COLOR_TICK) { 215282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return TICK_TYPE_TICK; 216282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 217282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (color == COLOR_LAYOUT_BOUNDS_TICK) { 218282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return TICK_TYPE_LAYOUT_BOUNDS; 219282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 220282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 221282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (p[0] != 0 || p[1] != 0 || p[2] != 0) { 222282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outError = "Ticks in white frame must be black or red"; 223282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return TICK_TYPE_NONE; 224282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 225282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return TICK_TYPE_TICK; 226282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 227282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 228282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskienum { 229282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski TICK_START, 230282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski TICK_INSIDE_1, 231282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski TICK_OUTSIDE_1 232282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski}; 233282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 234282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatic status_t get_horizontal_ticks( 235282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytep row, int width, bool transparent, bool required, 236282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int32_t* outLeft, int32_t* outRight, const char** outError, 237282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski uint8_t* outDivs, bool multipleAllowed) 238282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 239282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int i; 240282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outLeft = *outRight = -1; 241282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int state = TICK_START; 242282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bool found = false; 243282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 244282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (i=1; i<width-1; i++) { 245282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (TICK_TYPE_TICK == tick_type(row+i*4, transparent, outError)) { 246282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (state == TICK_START || 247282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski (state == TICK_OUTSIDE_1 && multipleAllowed)) { 248282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outLeft = i-1; 249282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outRight = width-2; 250282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski found = true; 251282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (outDivs != NULL) { 252282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outDivs += 2; 253282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 254282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski state = TICK_INSIDE_1; 255282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else if (state == TICK_OUTSIDE_1) { 256282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outError = "Can't have more than one marked region along edge"; 257282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outLeft = i; 258282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return UNKNOWN_ERROR; 259282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 260282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else if (*outError == NULL) { 261282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (state == TICK_INSIDE_1) { 262282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // We're done with this div. Move on to the next. 263282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outRight = i-1; 264282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski outRight += 2; 265282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski outLeft += 2; 266282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski state = TICK_OUTSIDE_1; 267282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 268282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else { 269282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outLeft = i; 270282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return UNKNOWN_ERROR; 271282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 272282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 273282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 274282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (required && !found) { 275282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outError = "No marked region found along edge"; 276282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outLeft = -1; 277282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return UNKNOWN_ERROR; 278282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 279282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 280282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return NO_ERROR; 281282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 282282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 283282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatic status_t get_vertical_ticks( 284282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytepp rows, int offset, int height, bool transparent, bool required, 285282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int32_t* outTop, int32_t* outBottom, const char** outError, 286282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski uint8_t* outDivs, bool multipleAllowed) 287282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 288282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int i; 289282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outTop = *outBottom = -1; 290282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int state = TICK_START; 291282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bool found = false; 292282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 293282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (i=1; i<height-1; i++) { 294282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (TICK_TYPE_TICK == tick_type(rows[i]+offset, transparent, outError)) { 295282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (state == TICK_START || 296282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski (state == TICK_OUTSIDE_1 && multipleAllowed)) { 297282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outTop = i-1; 298282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outBottom = height-2; 299282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski found = true; 300282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (outDivs != NULL) { 301282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outDivs += 2; 302282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 303282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski state = TICK_INSIDE_1; 304282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else if (state == TICK_OUTSIDE_1) { 305282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outError = "Can't have more than one marked region along edge"; 306282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outTop = i; 307282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return UNKNOWN_ERROR; 308282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 309282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else if (*outError == NULL) { 310282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (state == TICK_INSIDE_1) { 311282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // We're done with this div. Move on to the next. 312282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outBottom = i-1; 313282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski outTop += 2; 314282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski outBottom += 2; 315282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski state = TICK_OUTSIDE_1; 316282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 317282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else { 318282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outTop = i; 319282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return UNKNOWN_ERROR; 320282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 321282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 322282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 323282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (required && !found) { 324282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outError = "No marked region found along edge"; 325282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outTop = -1; 326282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return UNKNOWN_ERROR; 327282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 328282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 329282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return NO_ERROR; 330282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 331282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 332282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatic status_t get_horizontal_layout_bounds_ticks( 333282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytep row, int width, bool transparent, bool required, 334282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int32_t* outLeft, int32_t* outRight, const char** outError) 335282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 336282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int i; 337282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outLeft = *outRight = 0; 338282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 339282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Look for left tick 340282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (TICK_TYPE_LAYOUT_BOUNDS == tick_type(row + 4, transparent, outError)) { 341282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Starting with a layout padding tick 342282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski i = 1; 343282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski while (i < width - 1) { 344282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski (*outLeft)++; 345282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski i++; 346282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int tick = tick_type(row + i * 4, transparent, outError); 347282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (tick != TICK_TYPE_LAYOUT_BOUNDS) { 348282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 349282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 350282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 351282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 352282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 353282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Look for right tick 354282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (TICK_TYPE_LAYOUT_BOUNDS == tick_type(row + (width - 2) * 4, transparent, outError)) { 355282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Ending with a layout padding tick 356282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski i = width - 2; 357282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski while (i > 1) { 358282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski (*outRight)++; 359282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski i--; 360282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int tick = tick_type(row+i*4, transparent, outError); 361282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (tick != TICK_TYPE_LAYOUT_BOUNDS) { 362282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 363282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 364282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 365282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 366282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 367282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return NO_ERROR; 368282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 369282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 370282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatic status_t get_vertical_layout_bounds_ticks( 371282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytepp rows, int offset, int height, bool transparent, bool required, 372282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int32_t* outTop, int32_t* outBottom, const char** outError) 373282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 374282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int i; 375282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *outTop = *outBottom = 0; 376282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 377282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Look for top tick 378282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (TICK_TYPE_LAYOUT_BOUNDS == tick_type(rows[1] + offset, transparent, outError)) { 379282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Starting with a layout padding tick 380282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski i = 1; 381282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski while (i < height - 1) { 382282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski (*outTop)++; 383282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski i++; 384282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int tick = tick_type(rows[i] + offset, transparent, outError); 385282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (tick != TICK_TYPE_LAYOUT_BOUNDS) { 386282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 387282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 388282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 389282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 390282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 391282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Look for bottom tick 392282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (TICK_TYPE_LAYOUT_BOUNDS == tick_type(rows[height - 2] + offset, transparent, outError)) { 393282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Ending with a layout padding tick 394282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski i = height - 2; 395282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski while (i > 1) { 396282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski (*outBottom)++; 397282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski i--; 398282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int tick = tick_type(rows[i] + offset, transparent, outError); 399282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (tick != TICK_TYPE_LAYOUT_BOUNDS) { 400282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 401282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 402282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 403282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 404282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 405282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return NO_ERROR; 406282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 407282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 40847cd8e921db73e894f94ec4729ade90da50996f5Chris Craikstatic void find_max_opacity(png_byte** rows, 40947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int startX, int startY, int endX, int endY, int dX, int dY, 41047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int* out_inset) 41147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik{ 41247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik bool opaque_within_inset = true; 41347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik unsigned char max_opacity = 0; 41447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int inset = 0; 41547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik *out_inset = 0; 41647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik for (int x = startX, y = startY; x != endX && y != endY; x += dX, y += dY, inset++) { 41747cd8e921db73e894f94ec4729ade90da50996f5Chris Craik png_byte* color = rows[y] + x * 4; 41847cd8e921db73e894f94ec4729ade90da50996f5Chris Craik unsigned char opacity = color[3]; 41947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik if (opacity > max_opacity) { 42047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik max_opacity = opacity; 42147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik *out_inset = inset; 42247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik } 42347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik if (opacity == 0xff) return; 42447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik } 42547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik} 42647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 42747cd8e921db73e894f94ec4729ade90da50996f5Chris Craikstatic bool is_opaque_over_row(png_byte* row, int startX, int endX) 42847cd8e921db73e894f94ec4729ade90da50996f5Chris Craik{ 42947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik for (int x = startX; x < endX; x++) { 43047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik png_byte* color = row + x * 4; 43147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik if (color[3] != 0xff) return false; 43247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik } 43347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik return true; 43447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik} 43547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 43647cd8e921db73e894f94ec4729ade90da50996f5Chris Craikstatic bool is_opaque_over_col(png_byte** rows, int offsetX, int startY, int endY) 43747cd8e921db73e894f94ec4729ade90da50996f5Chris Craik{ 43847cd8e921db73e894f94ec4729ade90da50996f5Chris Craik for (int y = startY; y < endY; y++) { 43947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik png_byte* color = rows[y] + offsetX * 4; 44047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik if (color[3] != 0xff) return false; 44147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik } 44247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik return true; 44347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik} 44447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 44547cd8e921db73e894f94ec4729ade90da50996f5Chris Craikstatic void get_outline(image_info* image) 44647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik{ 44747cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int midX = image->width / 2; 44847cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int midY = image->height / 2; 44947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int endX = image->width - 2; 45047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int endY = image->height - 2; 45147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 45247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik // find left and right extent of nine patch content on center row 45347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik if (image->width > 4) { 45447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik find_max_opacity(image->rows, 1, midY, midX, -1, 1, 0, &image->outlineInsetsLeft); 45547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik find_max_opacity(image->rows, endX, midY, midX, -1, -1, 0, &image->outlineInsetsRight); 45647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik } else { 45747cd8e921db73e894f94ec4729ade90da50996f5Chris Craik image->outlineInsetsLeft = 0; 45847cd8e921db73e894f94ec4729ade90da50996f5Chris Craik image->outlineInsetsRight = 0; 45947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik } 46047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 46147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik // find top and bottom extent of nine patch content on center column 46247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik if (image->height > 4) { 46347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik find_max_opacity(image->rows, midX, 1, -1, midY, 0, 1, &image->outlineInsetsTop); 46447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik find_max_opacity(image->rows, midX, endY, -1, midY, 0, -1, &image->outlineInsetsBottom); 46547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik } else { 46647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik image->outlineInsetsTop = 0; 46747cd8e921db73e894f94ec4729ade90da50996f5Chris Craik image->outlineInsetsBottom = 0; 46847cd8e921db73e894f94ec4729ade90da50996f5Chris Craik } 46947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 47047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int innerStartX = 1 + image->outlineInsetsLeft; 47147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int innerStartY = 1 + image->outlineInsetsTop; 47247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int innerEndX = endX - image->outlineInsetsRight; 47347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int innerEndY = endY - image->outlineInsetsBottom; 47447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int innerMidX = (innerEndX + innerStartX) / 2; 47547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int innerMidY = (innerEndY + innerStartY) / 2; 47647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 47747cd8e921db73e894f94ec4729ade90da50996f5Chris Craik // assuming the image is a round rect, compute the radius by marching 47847cd8e921db73e894f94ec4729ade90da50996f5Chris Craik // diagonally from the top left corner towards the center 47947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik image->outlineFilled = is_opaque_over_row(image->rows[innerMidY], innerStartX, innerEndX) 48047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik && is_opaque_over_col(image->rows, innerMidX, innerStartY, innerStartY); 48147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 48247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int diagonalInset = 0; 48347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik find_max_opacity(image->rows, innerStartX, innerStartY, innerMidX, innerMidY, 1, 1, 48447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik &diagonalInset); 48547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 48647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik // Determine source radius based upon inset 48747cd8e921db73e894f94ec4729ade90da50996f5Chris Craik // radius = 1 / (sqrt(2) - 1) * inset 48847cd8e921db73e894f94ec4729ade90da50996f5Chris Craik image->outlineRadius = 2.4142f * diagonalInset; 48947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 49047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik NOISY(printf("outline insets %d %d %d %d, rad %f, filled %d\n", 49147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik image->outlineFilled, 49247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik image->outlineInsetsLeft, 49347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik image->outlineInsetsTop, 49447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik image->outlineInsetsRight, 49547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik image->outlineInsetsBottom, 49647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik image->outlineRadius, 49747cd8e921db73e894f94ec4729ade90da50996f5Chris Craik image->outlineFilled)); 49847cd8e921db73e894f94ec4729ade90da50996f5Chris Craik} 49947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 500282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 501282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatic uint32_t get_color( 502282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytepp rows, int left, int top, int right, int bottom) 503282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 504282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytep color = rows[top] + left*4; 505282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 506282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (left > right || top > bottom) { 507282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return Res_png_9patch::TRANSPARENT_COLOR; 508282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 509282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 510282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski while (top <= bottom) { 511282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (int i = left; i <= right; i++) { 512282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytep p = rows[top]+i*4; 513282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (color[3] == 0) { 514282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (p[3] != 0) { 515282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return Res_png_9patch::NO_COLOR; 516282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 517282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else if (p[0] != color[0] || p[1] != color[1] 518282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski || p[2] != color[2] || p[3] != color[3]) { 519282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return Res_png_9patch::NO_COLOR; 520282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 521282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 522282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski top++; 523282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 524282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 525282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (color[3] == 0) { 526282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return Res_png_9patch::TRANSPARENT_COLOR; 527282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 528282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return (color[3]<<24) | (color[0]<<16) | (color[1]<<8) | color[2]; 529282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 530282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 531282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatic void select_patch( 532282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int which, int front, int back, int size, int* start, int* end) 533282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 534282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski switch (which) { 535282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski case 0: 536282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *start = 0; 537282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *end = front-1; 538282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 539282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski case 1: 540282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *start = front; 541282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *end = back-1; 542282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 543282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski case 2: 544282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *start = back; 545282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *end = size-1; 546282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 547282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 548282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 549282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 550282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatic uint32_t get_color(image_info* image, int hpatch, int vpatch) 551282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 552282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int left, right, top, bottom; 553282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski select_patch( 5546381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath hpatch, image->xDivs[0], image->xDivs[1], 555282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->width, &left, &right); 556282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski select_patch( 5576381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath vpatch, image->yDivs[0], image->yDivs[1], 558282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->height, &top, &bottom); 559282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski //printf("Selecting h=%d v=%d: (%d,%d)-(%d,%d)\n", 560282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // hpatch, vpatch, left, top, right, bottom); 561282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski const uint32_t c = get_color(image->rows, left, top, right, bottom); 562282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("Color in (%d,%d)-(%d,%d): #%08x\n", left, top, right, bottom, c)); 563282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return c; 564282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 565282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 566282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatic status_t do_9patch(const char* imageName, image_info* image) 567282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 568282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->is9Patch = true; 569282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 570282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int W = image->width; 571282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int H = image->height; 572282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int i, j; 573282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 574282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int maxSizeXDivs = W * sizeof(int32_t); 575282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int maxSizeYDivs = H * sizeof(int32_t); 5766381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath int32_t* xDivs = image->xDivs = (int32_t*) malloc(maxSizeXDivs); 5776381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath int32_t* yDivs = image->yDivs = (int32_t*) malloc(maxSizeYDivs); 578c367d48c55e5a3fa0df14fd62889e4bb6b63cb01Elliott Hughes uint8_t numXDivs = 0; 579c367d48c55e5a3fa0df14fd62889e4bb6b63cb01Elliott Hughes uint8_t numYDivs = 0; 580c367d48c55e5a3fa0df14fd62889e4bb6b63cb01Elliott Hughes 581282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int8_t numColors; 582282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int numRows; 583282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int numCols; 584282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int top; 585282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int left; 586282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int right; 587282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int bottom; 588282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski memset(xDivs, -1, maxSizeXDivs); 589282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski memset(yDivs, -1, maxSizeYDivs); 590282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->info9Patch.paddingLeft = image->info9Patch.paddingRight = 591282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->info9Patch.paddingTop = image->info9Patch.paddingBottom = -1; 592282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 593282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->layoutBoundsLeft = image->layoutBoundsRight = 594282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->layoutBoundsTop = image->layoutBoundsBottom = 0; 595282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 596282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytep p = image->rows[0]; 597282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bool transparent = p[3] == 0; 598282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bool hasColor = false; 599282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 600282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski const char* errorMsg = NULL; 601282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int errorPixel = -1; 602282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski const char* errorEdge = NULL; 603282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 604282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int colorIndex = 0; 605282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 606282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Validate size... 607282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (W < 3 || H < 3) { 608282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski errorMsg = "Image must be at least 3x3 (1x1 without frame) pixels"; 609282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski goto getout; 610282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 611282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 612282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Validate frame... 613282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (!transparent && 614282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski (p[0] != 0xFF || p[1] != 0xFF || p[2] != 0xFF || p[3] != 0xFF)) { 615282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski errorMsg = "Must have one-pixel frame that is either transparent or white"; 616282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski goto getout; 617282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 618282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 619282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Find left and right of sizing areas... 620282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (get_horizontal_ticks(p, W, transparent, true, &xDivs[0], 621282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski &xDivs[1], &errorMsg, &numXDivs, true) != NO_ERROR) { 622282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski errorPixel = xDivs[0]; 623282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski errorEdge = "top"; 624282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski goto getout; 625282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 626282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 627282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Find top and bottom of sizing areas... 628282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (get_vertical_ticks(image->rows, 0, H, transparent, true, &yDivs[0], 629282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski &yDivs[1], &errorMsg, &numYDivs, true) != NO_ERROR) { 630282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski errorPixel = yDivs[0]; 631282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski errorEdge = "left"; 632282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski goto getout; 633282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 634282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 635b30296b5fda75bf383c7ab3f567eb41820747869Elliott Hughes // Copy patch size data into image... 636b30296b5fda75bf383c7ab3f567eb41820747869Elliott Hughes image->info9Patch.numXDivs = numXDivs; 637b30296b5fda75bf383c7ab3f567eb41820747869Elliott Hughes image->info9Patch.numYDivs = numYDivs; 638b30296b5fda75bf383c7ab3f567eb41820747869Elliott Hughes 639282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Find left and right of padding area... 640282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (get_horizontal_ticks(image->rows[H-1], W, transparent, false, &image->info9Patch.paddingLeft, 641282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski &image->info9Patch.paddingRight, &errorMsg, NULL, false) != NO_ERROR) { 642282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski errorPixel = image->info9Patch.paddingLeft; 643282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski errorEdge = "bottom"; 644282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski goto getout; 645282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 646282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 647282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Find top and bottom of padding area... 648282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (get_vertical_ticks(image->rows, (W-1)*4, H, transparent, false, &image->info9Patch.paddingTop, 649282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski &image->info9Patch.paddingBottom, &errorMsg, NULL, false) != NO_ERROR) { 650282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski errorPixel = image->info9Patch.paddingTop; 651282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski errorEdge = "right"; 652282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski goto getout; 653282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 654282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 655282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Find left and right of layout padding... 656282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski get_horizontal_layout_bounds_ticks(image->rows[H-1], W, transparent, false, 657282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski &image->layoutBoundsLeft, 658282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski &image->layoutBoundsRight, &errorMsg); 659282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 660282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski get_vertical_layout_bounds_ticks(image->rows, (W-1)*4, H, transparent, false, 661282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski &image->layoutBoundsTop, 662282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski &image->layoutBoundsBottom, &errorMsg); 663282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 664282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->haveLayoutBounds = image->layoutBoundsLeft != 0 665282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski || image->layoutBoundsRight != 0 666282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski || image->layoutBoundsTop != 0 667282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski || image->layoutBoundsBottom != 0; 668282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 669282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (image->haveLayoutBounds) { 670282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("layoutBounds=%d %d %d %d\n", image->layoutBoundsLeft, image->layoutBoundsTop, 671282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->layoutBoundsRight, image->layoutBoundsBottom)); 672282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 673282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 67447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik // use opacity of pixels to estimate the round rect outline 67547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik get_outline(image); 67647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 677282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // If padding is not yet specified, take values from size. 678282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (image->info9Patch.paddingLeft < 0) { 679282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->info9Patch.paddingLeft = xDivs[0]; 680282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->info9Patch.paddingRight = W - 2 - xDivs[1]; 681282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else { 682282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Adjust value to be correct! 683282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->info9Patch.paddingRight = W - 2 - image->info9Patch.paddingRight; 684282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 685282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (image->info9Patch.paddingTop < 0) { 686282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->info9Patch.paddingTop = yDivs[0]; 687282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->info9Patch.paddingBottom = H - 2 - yDivs[1]; 688282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else { 689282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Adjust value to be correct! 690282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->info9Patch.paddingBottom = H - 2 - image->info9Patch.paddingBottom; 691282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 692282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 693282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("Size ticks for %s: x0=%d, x1=%d, y0=%d, y1=%d\n", imageName, 694282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->info9Patch.xDivs[0], image->info9Patch.xDivs[1], 695282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->info9Patch.yDivs[0], image->info9Patch.yDivs[1])); 696282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("padding ticks for %s: l=%d, r=%d, t=%d, b=%d\n", imageName, 697282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->info9Patch.paddingLeft, image->info9Patch.paddingRight, 698282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->info9Patch.paddingTop, image->info9Patch.paddingBottom)); 699282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 700282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Remove frame from image. 701282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->rows = (png_bytepp)malloc((H-2) * sizeof(png_bytep)); 702282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (i=0; i<(H-2); i++) { 703282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->rows[i] = image->allocRows[i+1]; 704282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski memmove(image->rows[i], image->rows[i]+4, (W-2)*4); 705282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 706282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->width -= 2; 707282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski W = image->width; 708282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->height -= 2; 709282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski H = image->height; 710282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 711282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Figure out the number of rows and columns in the N-patch 712282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski numCols = numXDivs + 1; 713282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (xDivs[0] == 0) { // Column 1 is strechable 714282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski numCols--; 715282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 716282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (xDivs[numXDivs - 1] == W) { 717282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski numCols--; 718282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 719282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski numRows = numYDivs + 1; 720282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (yDivs[0] == 0) { // Row 1 is strechable 721282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski numRows--; 722282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 723282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (yDivs[numYDivs - 1] == H) { 724282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski numRows--; 725282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 726282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 727282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Make sure the amount of rows and columns will fit in the number of 728282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // colors we can use in the 9-patch format. 729282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (numRows * numCols > 0x7F) { 730282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski errorMsg = "Too many rows and columns in 9-patch perimeter"; 731282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski goto getout; 732282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 733282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 734282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski numColors = numRows * numCols; 735282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image->info9Patch.numColors = numColors; 7366381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath image->colors = (uint32_t*)malloc(numColors * sizeof(uint32_t)); 737282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 738282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Fill in color information for each patch. 739282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 740282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski uint32_t c; 741282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski top = 0; 742282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 743282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // The first row always starts with the top being at y=0 and the bottom 744282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // being either yDivs[1] (if yDivs[0]=0) of yDivs[0]. In the former case 745282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // the first row is stretchable along the Y axis, otherwise it is fixed. 746282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // The last row always ends with the bottom being bitmap.height and the top 747282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // being either yDivs[numYDivs-2] (if yDivs[numYDivs-1]=bitmap.height) or 748282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // yDivs[numYDivs-1]. In the former case the last row is stretchable along 749282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // the Y axis, otherwise it is fixed. 750282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // 751282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // The first and last columns are similarly treated with respect to the X 752282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // axis. 753282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // 754282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // The above is to help explain some of the special casing that goes on the 755282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // code below. 756282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 757282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // The initial yDiv and whether the first row is considered stretchable or 758282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // not depends on whether yDiv[0] was zero or not. 759282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (j = (yDivs[0] == 0 ? 1 : 0); 760282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski j <= numYDivs && top < H; 761282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski j++) { 762282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (j == numYDivs) { 763282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bottom = H; 764282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else { 765282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bottom = yDivs[j]; 766282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 767282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski left = 0; 768282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // The initial xDiv and whether the first column is considered 769282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // stretchable or not depends on whether xDiv[0] was zero or not. 770282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (i = xDivs[0] == 0 ? 1 : 0; 771282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski i <= numXDivs && left < W; 772282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski i++) { 773282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (i == numXDivs) { 774282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski right = W; 775282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else { 776282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski right = xDivs[i]; 777282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 778282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski c = get_color(image->rows, left, top, right - 1, bottom - 1); 7796381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath image->colors[colorIndex++] = c; 780282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(if (c != Res_png_9patch::NO_COLOR) hasColor = true); 781282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski left = right; 782282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 783282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski top = bottom; 784282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 785282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 786282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski assert(colorIndex == numColors); 787282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 788282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (i=0; i<numColors; i++) { 789282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (hasColor) { 790282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (i == 0) printf("Colors in %s:\n ", imageName); 7916381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath printf(" #%08x", image->colors[i]); 792282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (i == numColors - 1) printf("\n"); 793282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 794282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 795282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskigetout: 796282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (errorMsg) { 797282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fprintf(stderr, 798282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski "ERROR: 9-patch image %s malformed.\n" 799282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski " %s.\n", imageName, errorMsg); 800282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (errorEdge != NULL) { 801282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (errorPixel >= 0) { 802282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fprintf(stderr, 803282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski " Found at pixel #%d along %s edge.\n", errorPixel, errorEdge); 804282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else { 805282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fprintf(stderr, 806282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski " Found along %s edge.\n", errorEdge); 807282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 808282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 809282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return UNKNOWN_ERROR; 810282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 811282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return NO_ERROR; 812282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 813282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 8146381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamathstatic void checkNinePatchSerialization(Res_png_9patch* inPatch, void* data) 815282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 816282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski size_t patchSize = inPatch->serializedSize(); 8176381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath void* newData = malloc(patchSize); 818282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski memcpy(newData, data, patchSize); 819282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski Res_png_9patch* outPatch = inPatch->deserialize(newData); 820282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // deserialization is done in place, so outPatch == newData 821282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski assert(outPatch == newData); 822282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski assert(outPatch->numXDivs == inPatch->numXDivs); 823282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski assert(outPatch->numYDivs == inPatch->numYDivs); 824282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski assert(outPatch->paddingLeft == inPatch->paddingLeft); 825282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski assert(outPatch->paddingRight == inPatch->paddingRight); 826282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski assert(outPatch->paddingTop == inPatch->paddingTop); 827282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski assert(outPatch->paddingBottom == inPatch->paddingBottom); 828282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (int i = 0; i < outPatch->numXDivs; i++) { 829282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski assert(outPatch->xDivs[i] == inPatch->xDivs[i]); 830282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 831282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (int i = 0; i < outPatch->numYDivs; i++) { 832282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski assert(outPatch->yDivs[i] == inPatch->yDivs[i]); 833282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 834282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (int i = 0; i < outPatch->numColors; i++) { 835282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski assert(outPatch->colors[i] == inPatch->colors[i]); 836282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 837282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski free(newData); 838282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 839282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 840282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatic void dump_image(int w, int h, png_bytepp rows, int color_type) 841282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 842282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int i, j, rr, gg, bb, aa; 843282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 844282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int bpp; 845282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (color_type == PNG_COLOR_TYPE_PALETTE || color_type == PNG_COLOR_TYPE_GRAY) { 846282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bpp = 1; 847282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else if (color_type == PNG_COLOR_TYPE_GRAY_ALPHA) { 848282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bpp = 2; 849282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else if (color_type == PNG_COLOR_TYPE_RGB || color_type == PNG_COLOR_TYPE_RGB_ALPHA) { 850282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // We use a padding byte even when there is no alpha 851282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bpp = 4; 852282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else { 853282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski printf("Unknown color type %d.\n", color_type); 854282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 855282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 856282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (j = 0; j < h; j++) { 857282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytep row = rows[j]; 858282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (i = 0; i < w; i++) { 859282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski rr = row[0]; 860282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski gg = row[1]; 861282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bb = row[2]; 862282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski aa = row[3]; 863282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski row += bpp; 864282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 865282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (i == 0) { 866282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski printf("Row %d:", j); 867282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 868282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski switch (bpp) { 869282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski case 1: 870282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski printf(" (%d)", rr); 871282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 872282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski case 2: 873282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski printf(" (%d %d", rr, gg); 874282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 875282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski case 3: 876282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski printf(" (%d %d %d)", rr, gg, bb); 877282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 878282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski case 4: 879282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski printf(" (%d %d %d %d)", rr, gg, bb, aa); 880282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 881282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 882282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (i == (w - 1)) { 883282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("\n")); 884282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 885282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 886282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 887282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 888282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 889282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski#define MAX(a,b) ((a)>(b)?(a):(b)) 890282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski#define ABS(a) ((a)<0?-(a):(a)) 891282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 892282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatic void analyze_image(const char *imageName, image_info &imageInfo, int grayscaleTolerance, 893282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_colorp rgbPalette, png_bytep alphaPalette, 894282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int *paletteEntries, bool *hasTransparency, int *colorType, 895282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytepp outRows) 896282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 897282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int w = imageInfo.width; 898282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int h = imageInfo.height; 899282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int i, j, rr, gg, bb, aa, idx; 900282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski uint32_t colors[256], col; 901282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int num_colors = 0; 902282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int maxGrayDeviation = 0; 903282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 904282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bool isOpaque = true; 905282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bool isPalette = true; 906282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bool isGrayscale = true; 907282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 908282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Scan the entire image and determine if: 909282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // 1. Every pixel has R == G == B (grayscale) 910282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // 2. Every pixel has A == 255 (opaque) 911282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // 3. There are no more than 256 distinct RGBA colors 912282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 913282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // NOISY(printf("Initial image data:\n")); 914282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // dump_image(w, h, imageInfo.rows, PNG_COLOR_TYPE_RGB_ALPHA); 915282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 916282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (j = 0; j < h; j++) { 917282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytep row = imageInfo.rows[j]; 918282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytep out = outRows[j]; 919282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (i = 0; i < w; i++) { 920282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski rr = *row++; 921282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski gg = *row++; 922282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bb = *row++; 923282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski aa = *row++; 924282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 925282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int odev = maxGrayDeviation; 926282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski maxGrayDeviation = MAX(ABS(rr - gg), maxGrayDeviation); 927282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski maxGrayDeviation = MAX(ABS(gg - bb), maxGrayDeviation); 928282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski maxGrayDeviation = MAX(ABS(bb - rr), maxGrayDeviation); 929282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (maxGrayDeviation > odev) { 930282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("New max dev. = %d at pixel (%d, %d) = (%d %d %d %d)\n", 931282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski maxGrayDeviation, i, j, rr, gg, bb, aa)); 932282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 933282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 934282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Check if image is really grayscale 935282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (isGrayscale) { 936282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (rr != gg || rr != bb) { 937282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("Found a non-gray pixel at %d, %d = (%d %d %d %d)\n", 938282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski i, j, rr, gg, bb, aa)); 939282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski isGrayscale = false; 940282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 941282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 942282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 943282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Check if image is really opaque 944282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (isOpaque) { 945282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (aa != 0xff) { 946282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("Found a non-opaque pixel at %d, %d = (%d %d %d %d)\n", 947282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski i, j, rr, gg, bb, aa)); 948282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski isOpaque = false; 949282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 950282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 951282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 952282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Check if image is really <= 256 colors 953282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (isPalette) { 954282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski col = (uint32_t) ((rr << 24) | (gg << 16) | (bb << 8) | aa); 955282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bool match = false; 956282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (idx = 0; idx < num_colors; idx++) { 957282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (colors[idx] == col) { 958282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski match = true; 959282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 960282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 961282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 962282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 963282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Write the palette index for the pixel to outRows optimistically 964282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // We might overwrite it later if we decide to encode as gray or 965282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // gray + alpha 966282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *out++ = idx; 967282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (!match) { 968282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (num_colors == 256) { 969282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("Found 257th color at %d, %d\n", i, j)); 970282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski isPalette = false; 971282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else { 972282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski colors[num_colors++] = col; 973282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 974282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 975282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 976282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 977282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 978282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 979282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *paletteEntries = 0; 980282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *hasTransparency = !isOpaque; 981282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int bpp = isOpaque ? 3 : 4; 982282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int paletteSize = w * h + bpp * num_colors; 983282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 984282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("isGrayscale = %s\n", isGrayscale ? "true" : "false")); 985282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("isOpaque = %s\n", isOpaque ? "true" : "false")); 986282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("isPalette = %s\n", isPalette ? "true" : "false")); 987282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("Size w/ palette = %d, gray+alpha = %d, rgb(a) = %d\n", 988282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski paletteSize, 2 * w * h, bpp * w * h)); 989282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("Max gray deviation = %d, tolerance = %d\n", maxGrayDeviation, grayscaleTolerance)); 990282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 991282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Choose the best color type for the image. 992282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // 1. Opaque gray - use COLOR_TYPE_GRAY at 1 byte/pixel 993282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // 2. Gray + alpha - use COLOR_TYPE_PALETTE if the number of distinct combinations 994282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // is sufficiently small, otherwise use COLOR_TYPE_GRAY_ALPHA 995282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // 3. RGB(A) - use COLOR_TYPE_PALETTE if the number of distinct colors is sufficiently 996282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // small, otherwise use COLOR_TYPE_RGB{_ALPHA} 997282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (isGrayscale) { 998282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (isOpaque) { 999282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *colorType = PNG_COLOR_TYPE_GRAY; // 1 byte/pixel 1000282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else { 1001282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Use a simple heuristic to determine whether using a palette will 1002282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // save space versus using gray + alpha for each pixel. 1003282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // This doesn't take into account chunk overhead, filtering, LZ 1004282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // compression, etc. 1005282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (isPalette && (paletteSize < 2 * w * h)) { 1006282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *colorType = PNG_COLOR_TYPE_PALETTE; // 1 byte/pixel + 4 bytes/color 1007282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else { 1008282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *colorType = PNG_COLOR_TYPE_GRAY_ALPHA; // 2 bytes per pixel 1009282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1010282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1011282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else if (isPalette && (paletteSize < bpp * w * h)) { 1012282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *colorType = PNG_COLOR_TYPE_PALETTE; 1013282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else { 1014282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (maxGrayDeviation <= grayscaleTolerance) { 1015282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski printf("%s: forcing image to gray (max deviation = %d)\n", imageName, maxGrayDeviation); 1016282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *colorType = isOpaque ? PNG_COLOR_TYPE_GRAY : PNG_COLOR_TYPE_GRAY_ALPHA; 1017282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else { 1018282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *colorType = isOpaque ? PNG_COLOR_TYPE_RGB : PNG_COLOR_TYPE_RGB_ALPHA; 1019282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1020282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1021282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1022282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Perform postprocessing of the image or palette data based on the final 1023282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // color type chosen 1024282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1025282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (*colorType == PNG_COLOR_TYPE_PALETTE) { 1026282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Create separate RGB and Alpha palettes and set the number of colors 1027282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *paletteEntries = num_colors; 1028282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1029282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Create the RGB and alpha palettes 1030282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (int idx = 0; idx < num_colors; idx++) { 1031282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski col = colors[idx]; 1032282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski rgbPalette[idx].red = (png_byte) ((col >> 24) & 0xff); 1033282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski rgbPalette[idx].green = (png_byte) ((col >> 16) & 0xff); 1034282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski rgbPalette[idx].blue = (png_byte) ((col >> 8) & 0xff); 1035282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski alphaPalette[idx] = (png_byte) (col & 0xff); 1036282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1037282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else if (*colorType == PNG_COLOR_TYPE_GRAY || *colorType == PNG_COLOR_TYPE_GRAY_ALPHA) { 1038282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // If the image is gray or gray + alpha, compact the pixels into outRows 1039282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (j = 0; j < h; j++) { 1040282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytep row = imageInfo.rows[j]; 1041282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytep out = outRows[j]; 1042282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (i = 0; i < w; i++) { 1043282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski rr = *row++; 1044282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski gg = *row++; 1045282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bb = *row++; 1046282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski aa = *row++; 1047282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1048282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (isGrayscale) { 1049282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *out++ = rr; 1050282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else { 1051282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *out++ = (png_byte) (rr * 0.2126f + gg * 0.7152f + bb * 0.0722f); 1052282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1053282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (!isOpaque) { 1054282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski *out++ = aa; 1055282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1056282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1057282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1058282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1059282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 1060282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1061282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1062282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatic void write_png(const char* imageName, 1063282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_structp write_ptr, png_infop write_info, 1064282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image_info& imageInfo, int grayscaleTolerance) 1065282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 1066282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bool optimize = true; 1067282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_uint_32 width, height; 1068282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int color_type; 1069282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int bit_depth, interlace_type, compression_type; 1070282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int i; 1071282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 107247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik png_unknown_chunk unknowns[3]; 1073282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski unknowns[0].data = NULL; 1074282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski unknowns[1].data = NULL; 107547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik unknowns[2].data = NULL; 1076282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1077282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytepp outRows = (png_bytepp) malloc((int) imageInfo.height * sizeof(png_bytep)); 1078282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (outRows == (png_bytepp) 0) { 1079282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski printf("Can't allocate output buffer!\n"); 1080282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski exit(1); 1081282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1082282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (i = 0; i < (int) imageInfo.height; i++) { 1083282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski outRows[i] = (png_bytep) malloc(2 * (int) imageInfo.width); 1084282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (outRows[i] == (png_bytep) 0) { 1085282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski printf("Can't allocate output buffer!\n"); 1086282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski exit(1); 1087282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1088282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1089282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1090282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_compression_level(write_ptr, Z_BEST_COMPRESSION); 1091282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1092282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("Writing image %s: w = %d, h = %d\n", imageName, 1093282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski (int) imageInfo.width, (int) imageInfo.height)); 1094282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1095282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_color rgbPalette[256]; 1096282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_byte alphaPalette[256]; 1097282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bool hasTransparency; 1098282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int paletteEntries; 1099282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1100282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski analyze_image(imageName, imageInfo, grayscaleTolerance, rgbPalette, alphaPalette, 1101282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski &paletteEntries, &hasTransparency, &color_type, outRows); 1102282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1103282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // If the image is a 9-patch, we need to preserve it as a ARGB file to make 1104282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // sure the pixels will not be pre-dithered/clamped until we decide they are 1105282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (imageInfo.is9Patch && (color_type == PNG_COLOR_TYPE_RGB || 1106282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski color_type == PNG_COLOR_TYPE_GRAY || color_type == PNG_COLOR_TYPE_PALETTE)) { 1107282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski color_type = PNG_COLOR_TYPE_RGB_ALPHA; 1108282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1109282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1110282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski switch (color_type) { 1111282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski case PNG_COLOR_TYPE_PALETTE: 1112282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("Image %s has %d colors%s, using PNG_COLOR_TYPE_PALETTE\n", 1113282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski imageName, paletteEntries, 1114282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski hasTransparency ? " (with alpha)" : "")); 1115282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 1116282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski case PNG_COLOR_TYPE_GRAY: 1117282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("Image %s is opaque gray, using PNG_COLOR_TYPE_GRAY\n", imageName)); 1118282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 1119282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski case PNG_COLOR_TYPE_GRAY_ALPHA: 1120282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("Image %s is gray + alpha, using PNG_COLOR_TYPE_GRAY_ALPHA\n", imageName)); 1121282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 1122282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski case PNG_COLOR_TYPE_RGB: 1123282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("Image %s is opaque RGB, using PNG_COLOR_TYPE_RGB\n", imageName)); 1124282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 1125282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski case PNG_COLOR_TYPE_RGB_ALPHA: 1126282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("Image %s is RGB + alpha, using PNG_COLOR_TYPE_RGB_ALPHA\n", imageName)); 1127282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski break; 1128282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1129282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1130282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_IHDR(write_ptr, write_info, imageInfo.width, imageInfo.height, 1131282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 8, color_type, PNG_INTERLACE_NONE, 1132282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT); 1133282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1134282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (color_type == PNG_COLOR_TYPE_PALETTE) { 1135282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_PLTE(write_ptr, write_info, rgbPalette, paletteEntries); 1136282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (hasTransparency) { 1137282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_tRNS(write_ptr, write_info, alphaPalette, paletteEntries, (png_color_16p) 0); 1138282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1139282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_filter(write_ptr, 0, PNG_NO_FILTERS); 1140282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else { 1141282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_filter(write_ptr, 0, PNG_ALL_FILTERS); 1142282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1143282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1144282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (imageInfo.is9Patch) { 114547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int chunk_count = 2 + (imageInfo.haveLayoutBounds ? 1 : 0); 114647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int p_index = imageInfo.haveLayoutBounds ? 2 : 1; 114747cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int b_index = 1; 114847cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int o_index = 0; 114947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 115047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik // Chunks ordered thusly because older platforms depend on the base 9 patch data being last 1151282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_byte *chunk_names = imageInfo.haveLayoutBounds 115247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik ? (png_byte*)"npOl\0npLb\0npTc\0" 115347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik : (png_byte*)"npOl\0npTc"; 115447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 115547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik // base 9 patch data 1156282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("Adding 9-patch info...\n")); 1157282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski strcpy((char*)unknowns[p_index].name, "npTc"); 11586381dd4ff212a95be30d2b445d40ff419ab076b4Narayan Kamath unknowns[p_index].data = (png_byte*)imageInfo.serialize9patch(); 1159282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski unknowns[p_index].size = imageInfo.info9Patch.serializedSize(); 1160282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // TODO: remove the check below when everything works 1161282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski checkNinePatchSerialization(&imageInfo.info9Patch, unknowns[p_index].data); 1162282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 116347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik // automatically generated 9 patch outline data 116447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik int chunk_size = sizeof(png_uint_32) * 6; 116547cd8e921db73e894f94ec4729ade90da50996f5Chris Craik strcpy((char*)unknowns[o_index].name, "npOl"); 116647cd8e921db73e894f94ec4729ade90da50996f5Chris Craik unknowns[o_index].data = (png_byte*) calloc(chunk_size, 1); 116747cd8e921db73e894f94ec4729ade90da50996f5Chris Craik png_byte outputData[chunk_size]; 116847cd8e921db73e894f94ec4729ade90da50996f5Chris Craik memcpy(&outputData, &imageInfo.outlineInsetsLeft, 4 * sizeof(png_uint_32)); 116947cd8e921db73e894f94ec4729ade90da50996f5Chris Craik ((float*) outputData)[4] = imageInfo.outlineRadius; 117047cd8e921db73e894f94ec4729ade90da50996f5Chris Craik ((png_uint_32*) outputData)[5] = imageInfo.outlineFilled ? 1 : 0; 117147cd8e921db73e894f94ec4729ade90da50996f5Chris Craik memcpy(unknowns[o_index].data, &outputData, chunk_size); 117247cd8e921db73e894f94ec4729ade90da50996f5Chris Craik unknowns[o_index].size = chunk_size; 117347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik 117447cd8e921db73e894f94ec4729ade90da50996f5Chris Craik // optional optical inset / layout bounds data 1175282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (imageInfo.haveLayoutBounds) { 1176282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int chunk_size = sizeof(png_uint_32) * 4; 1177282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski strcpy((char*)unknowns[b_index].name, "npLb"); 1178282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski unknowns[b_index].data = (png_byte*) calloc(chunk_size, 1); 1179282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski memcpy(unknowns[b_index].data, &imageInfo.layoutBoundsLeft, chunk_size); 1180282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski unknowns[b_index].size = chunk_size; 1181282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1182282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1183282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (int i = 0; i < chunk_count; i++) { 1184282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski unknowns[i].location = PNG_HAVE_PLTE; 1185282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1186282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_keep_unknown_chunks(write_ptr, PNG_HANDLE_CHUNK_ALWAYS, 1187282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski chunk_names, chunk_count); 1188282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_unknown_chunks(write_ptr, write_info, unknowns, chunk_count); 1189282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski#if PNG_LIBPNG_VER < 10600 1190282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski /* Deal with unknown chunk location bug in 1.5.x and earlier */ 1191282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_unknown_chunk_location(write_ptr, write_info, 0, PNG_HAVE_PLTE); 1192282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (imageInfo.haveLayoutBounds) { 1193282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_unknown_chunk_location(write_ptr, write_info, 1, PNG_HAVE_PLTE); 1194282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1195282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski#endif 1196282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1197282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1198282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1199282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_write_info(write_ptr, write_info); 1200282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1201282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_bytepp rows; 1202282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (color_type == PNG_COLOR_TYPE_RGB || color_type == PNG_COLOR_TYPE_RGB_ALPHA) { 1203282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (color_type == PNG_COLOR_TYPE_RGB) { 1204282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_filler(write_ptr, 0, PNG_FILLER_AFTER); 1205282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1206282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski rows = imageInfo.rows; 1207282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } else { 1208282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski rows = outRows; 1209282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1210282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_write_image(write_ptr, rows); 1211282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1212282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski// NOISY(printf("Final image data:\n")); 1213282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski// dump_image(imageInfo.width, imageInfo.height, rows, color_type); 1214282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1215282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_write_end(write_ptr, write_info); 1216282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1217282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski for (i = 0; i < (int) imageInfo.height; i++) { 1218282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski free(outRows[i]); 1219282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1220282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski free(outRows); 1221282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski free(unknowns[0].data); 1222282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski free(unknowns[1].data); 122347cd8e921db73e894f94ec4729ade90da50996f5Chris Craik free(unknowns[2].data); 1224282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1225282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_get_IHDR(write_ptr, write_info, &width, &height, 1226282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski &bit_depth, &color_type, &interlace_type, 1227282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski &compression_type, NULL); 1228282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1229282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski NOISY(printf("Image written: w=%d, h=%d, d=%d, colors=%d, inter=%d, comp=%d\n", 1230282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski (int)width, (int)height, bit_depth, color_type, interlace_type, 1231282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski compression_type)); 1232282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 1233282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1234282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatus_t preProcessImage(const Bundle* bundle, const sp<AaptAssets>& assets, 1235282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski const sp<AaptFile>& file, String8* outNewLeafName) 1236282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 1237282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski String8 ext(file->getPath().getPathExtension()); 1238282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1239282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // We currently only process PNG images. 1240282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (strcmp(ext.string(), ".png") != 0) { 1241282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return NO_ERROR; 1242282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1243282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1244282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Example of renaming a file: 1245282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski //*outNewLeafName = file->getPath().getBasePath().getFileName(); 1246282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski //outNewLeafName->append(".nupng"); 1247282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1248282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski String8 printableName(file->getPrintableSource()); 1249282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1250282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (bundle->getVerbose()) { 1251282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski printf("Processing image: %s\n", printableName.string()); 1252282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1253282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1254282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_structp read_ptr = NULL; 1255282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_infop read_info = NULL; 1256282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski FILE* fp; 1257282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1258282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image_info imageInfo; 1259282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1260282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_structp write_ptr = NULL; 1261282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_infop write_info = NULL; 1262282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1263282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski status_t error = UNKNOWN_ERROR; 1264282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1265282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski const size_t nameLen = file->getPath().length(); 1266282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1267282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fp = fopen(file->getSourceFile().string(), "rb"); 1268282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (fp == NULL) { 1269282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fprintf(stderr, "%s: ERROR: Unable to open PNG file\n", printableName.string()); 1270282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski goto bail; 1271282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1272282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1273282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski read_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, 0, (png_error_ptr)NULL, 1274282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski (png_error_ptr)NULL); 1275282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (!read_ptr) { 1276282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski goto bail; 1277282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1278282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1279282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski read_info = png_create_info_struct(read_ptr); 1280282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (!read_info) { 1281282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski goto bail; 1282282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1283282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1284282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (setjmp(png_jmpbuf(read_ptr))) { 1285282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski goto bail; 1286282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1287282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1288282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_init_io(read_ptr, fp); 1289282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1290282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski read_png(printableName.string(), read_ptr, read_info, &imageInfo); 1291282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1292282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (nameLen > 6) { 1293282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski const char* name = file->getPath().string(); 1294282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (name[nameLen-5] == '9' && name[nameLen-6] == '.') { 1295282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (do_9patch(printableName.string(), &imageInfo) != NO_ERROR) { 1296282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski goto bail; 1297282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1298282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1299282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1300282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1301282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski write_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, 0, (png_error_ptr)NULL, 1302282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski (png_error_ptr)NULL); 1303282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (!write_ptr) 1304282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski { 1305282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski goto bail; 1306282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1307282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1308282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski write_info = png_create_info_struct(write_ptr); 1309282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (!write_info) 1310282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski { 1311282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski goto bail; 1312282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1313282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1314282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_set_write_fn(write_ptr, (void*)file.get(), 1315282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_write_aapt_file, png_flush_aapt_file); 1316282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1317282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (setjmp(png_jmpbuf(write_ptr))) 1318282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski { 1319282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski goto bail; 1320282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1321282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1322282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski write_png(printableName.string(), write_ptr, write_info, imageInfo, 1323282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bundle->getGrayscaleTolerance()); 1324282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1325282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski error = NO_ERROR; 1326282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1327282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (bundle->getVerbose()) { 1328282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fseek(fp, 0, SEEK_END); 1329282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski size_t oldSize = (size_t)ftell(fp); 1330282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski size_t newSize = file->getSize(); 1331282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski float factor = ((float)newSize)/oldSize; 1332282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int percent = (int)(factor*100); 1333282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski printf(" (processed image %s: %d%% size of source)\n", printableName.string(), percent); 1334282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1335282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1336282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskibail: 1337282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (read_ptr) { 1338282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_destroy_read_struct(&read_ptr, &read_info, (png_infopp)NULL); 1339282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1340282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (fp) { 1341282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fclose(fp); 1342282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1343282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (write_ptr) { 1344282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_destroy_write_struct(&write_ptr, &write_info); 1345282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1346282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1347282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (error != NO_ERROR) { 1348282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fprintf(stderr, "ERROR: Failure processing PNG image %s\n", 1349282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski file->getPrintableSource().string()); 1350282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1351282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return error; 1352282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 1353282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1354282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatus_t preProcessImageToCache(const Bundle* bundle, const String8& source, const String8& dest) 1355282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 1356282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_structp read_ptr = NULL; 1357282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_infop read_info = NULL; 1358282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1359282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski FILE* fp; 1360282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1361282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski image_info imageInfo; 1362282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1363282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_structp write_ptr = NULL; 1364282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_infop write_info = NULL; 1365282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1366282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski status_t error = UNKNOWN_ERROR; 1367282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1368282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (bundle->getVerbose()) { 1369282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski printf("Processing image to cache: %s => %s\n", source.string(), dest.string()); 1370282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1371282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1372282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Get a file handler to read from 1373282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fp = fopen(source.string(),"rb"); 1374282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (fp == NULL) { 1375282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fprintf(stderr, "%s ERROR: Unable to open PNG file\n", source.string()); 1376282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return error; 1377282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1378282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1379282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Call libpng to get a struct to read image data into 1380282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski read_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); 1381282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (!read_ptr) { 1382282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fclose(fp); 1383282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_destroy_read_struct(&read_ptr, &read_info,NULL); 1384282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return error; 1385282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1386282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1387282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Call libpng to get a struct to read image info into 1388282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski read_info = png_create_info_struct(read_ptr); 1389282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (!read_info) { 1390282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fclose(fp); 1391282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_destroy_read_struct(&read_ptr, &read_info,NULL); 1392282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return error; 1393282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1394282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1395282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Set a jump point for libpng to long jump back to on error 1396282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (setjmp(png_jmpbuf(read_ptr))) { 1397282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fclose(fp); 1398282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_destroy_read_struct(&read_ptr, &read_info,NULL); 1399282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return error; 1400282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1401282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1402282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Set up libpng to read from our file. 1403282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_init_io(read_ptr,fp); 1404282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1405282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Actually read data from the file 1406282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski read_png(source.string(), read_ptr, read_info, &imageInfo); 1407282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1408282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // We're done reading so we can clean up 1409282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Find old file size before releasing handle 1410282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fseek(fp, 0, SEEK_END); 1411282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski size_t oldSize = (size_t)ftell(fp); 1412282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fclose(fp); 1413282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_destroy_read_struct(&read_ptr, &read_info,NULL); 1414282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1415282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Check to see if we're dealing with a 9-patch 1416282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // If we are, process appropriately 1417282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (source.getBasePath().getPathExtension() == ".9") { 1418282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (do_9patch(source.string(), &imageInfo) != NO_ERROR) { 1419282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return error; 1420282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1421282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1422282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1423282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Call libpng to create a structure to hold the processed image data 1424282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // that can be written to disk 1425282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski write_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); 1426282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (!write_ptr) { 1427282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_destroy_write_struct(&write_ptr, &write_info); 1428282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return error; 1429282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1430282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1431282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Call libpng to create a structure to hold processed image info that can 1432282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // be written to disk 1433282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski write_info = png_create_info_struct(write_ptr); 1434282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (!write_info) { 1435282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_destroy_write_struct(&write_ptr, &write_info); 1436282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return error; 1437282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1438282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1439282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Open up our destination file for writing 1440282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fp = fopen(dest.string(), "wb"); 1441282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (!fp) { 1442282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fprintf(stderr, "%s ERROR: Unable to open PNG file\n", dest.string()); 1443282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_destroy_write_struct(&write_ptr, &write_info); 1444282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return error; 1445282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1446282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1447282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Set up libpng to write to our file 1448282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_init_io(write_ptr, fp); 1449282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1450282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Set up a jump for libpng to long jump back on on errors 1451282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (setjmp(png_jmpbuf(write_ptr))) { 1452282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fclose(fp); 1453282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_destroy_write_struct(&write_ptr, &write_info); 1454282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return error; 1455282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1456282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1457282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Actually write out to the new png 1458282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski write_png(dest.string(), write_ptr, write_info, imageInfo, 1459282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski bundle->getGrayscaleTolerance()); 1460282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1461282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (bundle->getVerbose()) { 1462282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // Find the size of our new file 1463282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski FILE* reader = fopen(dest.string(), "rb"); 1464282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fseek(reader, 0, SEEK_END); 1465282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski size_t newSize = (size_t)ftell(reader); 1466282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fclose(reader); 1467282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1468282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski float factor = ((float)newSize)/oldSize; 1469282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski int percent = (int)(factor*100); 1470282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski printf(" (processed image to cache entry %s: %d%% size of source)\n", 1471282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski dest.string(), percent); 1472282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1473282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1474282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski //Clean up 1475282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski fclose(fp); 1476282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski png_destroy_write_struct(&write_ptr, &write_info); 1477282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1478282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return NO_ERROR; 1479282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 1480282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1481282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinskistatus_t postProcessImage(const sp<AaptAssets>& assets, 1482282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski ResourceTable* table, const sp<AaptFile>& file) 1483282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski{ 1484282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski String8 ext(file->getPath().getPathExtension()); 1485282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1486282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // At this point, now that we have all the resource data, all we need to 1487282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski // do is compile XML files. 1488282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski if (strcmp(ext.string(), ".xml") == 0) { 1489282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return compileXmlFile(assets, file, table); 1490282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski } 1491282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski 1492282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski return NO_ERROR; 1493282e181b58cf72b6ca770dc7ca5f91f135444502Adam Lesinski} 1494