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diff --git a/frontends/cocoa/bitmap.m b/frontends/cocoa/bitmap.m
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-/*
- * Copyright 2011 Sven Weidauer <sven.weidauer@gmail.com>
- *
- * This file is part of NetSurf, http://www.netsurf-browser.org/
- *
- * NetSurf is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * NetSurf is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/**
- * \file
- * Cocoa implementation of bitmap operations.
- */
-
-#import <Cocoa/Cocoa.h>
-
-#import "netsurf/browser_window.h"
-#import "netsurf/plotters.h"
-#import "netsurf/bitmap.h"
-#import "netsurf/content.h"
-
-#import "cocoa/plotter.h"
-#import "cocoa/bitmap.h"
-
-#define BITS_PER_SAMPLE (8)
-#define SAMPLES_PER_PIXEL (4)
-#define BITS_PER_PIXEL (BITS_PER_SAMPLE * SAMPLES_PER_PIXEL)
-#define BYTES_PER_PIXEL (BITS_PER_PIXEL / 8)
-#define RED_OFFSET (0)
-#define GREEN_OFFSET (1)
-#define BLUE_OFFSET (2)
-#define ALPHA_OFFSET (3)
-
-static CGImageRef cocoa_prepare_bitmap( void *bitmap );
-//static NSMapTable *cocoa_get_bitmap_cache( void );
-
-static inline NSMapTable *cocoa_get_bitmap_cache( void )
-{
- static NSMapTable *cache = nil;
- if (cache == nil) {
- cache = NSCreateMapTable( NSNonOwnedPointerMapKeyCallBacks, NSNonOwnedPointerMapValueCallBacks, 0 );
- }
- return cache;
-}
-
-static int bitmap_get_width(void *bitmap)
-{
- NSCParameterAssert( NULL != bitmap );
- NSBitmapImageRep *bmp = (NSBitmapImageRep *)bitmap;
- return [bmp pixelsWide];
-}
-
-static int bitmap_get_height(void *bitmap)
-{
- NSCParameterAssert( NULL != bitmap );
- NSBitmapImageRep *bmp = (NSBitmapImageRep *)bitmap;
- return [bmp pixelsHigh];
-}
-
-static bool bitmap_get_opaque(void *bitmap)
-{
- NSCParameterAssert( NULL != bitmap );
- NSBitmapImageRep *bmp = (NSBitmapImageRep *)bitmap;
- return [bmp isOpaque];
-}
-
-static void bitmap_destroy(void *bitmap)
-{
- NSCParameterAssert( NULL != bitmap );
-
- NSMapTable *cache = cocoa_get_bitmap_cache();
- CGImageRef image = NSMapGet( cache, bitmap );
- if (NULL != image) {
- CGImageRelease( image );
- NSMapRemove( cache, bitmap );
- }
-
- NSBitmapImageRep *bmp = (NSBitmapImageRep *)bitmap;
- [bmp release];
-}
-
-static void *bitmap_create(int width, int height, unsigned int state)
-{
- NSBitmapImageRep *bmp = [[NSBitmapImageRep alloc]
- initWithBitmapDataPlanes: NULL
- pixelsWide: width
- pixelsHigh: height
- bitsPerSample: BITS_PER_SAMPLE
- samplesPerPixel: SAMPLES_PER_PIXEL
- hasAlpha: YES
- isPlanar: NO
- colorSpaceName: NSDeviceRGBColorSpace
- bitmapFormat: NSAlphaNonpremultipliedBitmapFormat
- bytesPerRow: BYTES_PER_PIXEL * width
- bitsPerPixel: BITS_PER_PIXEL];
-
- return bmp;
-}
-
-static void bitmap_set_opaque(void *bitmap, bool opaque)
-{
- NSCParameterAssert( NULL != bitmap );
- NSBitmapImageRep *bmp = (NSBitmapImageRep *)bitmap;
- [bmp setOpaque: opaque ? YES : NO];
-}
-
-static unsigned char *bitmap_get_buffer(void *bitmap)
-{
- NSCParameterAssert( NULL != bitmap );
- NSBitmapImageRep *bmp = (NSBitmapImageRep *)bitmap;
- return [bmp bitmapData];
-}
-
-static size_t bitmap_get_rowstride(void *bitmap)
-{
- NSCParameterAssert( NULL != bitmap );
- NSBitmapImageRep *bmp = (NSBitmapImageRep *)bitmap;
- return [bmp bytesPerRow];
-}
-
-static size_t bitmap_get_bpp(void *bitmap)
-{
- NSCParameterAssert( NULL != bitmap );
- NSBitmapImageRep *bmp = (NSBitmapImageRep *)bitmap;
- return [bmp bitsPerPixel] / 8;
-}
-
-static bool bitmap_test_opaque(void *bitmap)
-{
- NSCParameterAssert( bitmap_get_bpp( bitmap ) == BYTES_PER_PIXEL );
-
- unsigned char *buf = bitmap_get_buffer( bitmap );
-
- const size_t height = bitmap_get_height( bitmap );
- const size_t width = bitmap_get_width( bitmap );
-
- const size_t line_step = bitmap_get_rowstride( bitmap ) - BYTES_PER_PIXEL * width;
-
- for (size_t y = 0; y < height; y++) {
- for (size_t x = 0; x < height; x++) {
- if (buf[ALPHA_OFFSET] != 0xFF) return false;
- buf += BYTES_PER_PIXEL;
- }
- buf += line_step;
- }
-
- return true;
-}
-
-static bool bitmap_save(void *bitmap, const char *path, unsigned flags)
-{
- NSCParameterAssert( NULL != bitmap );
- NSBitmapImageRep *bmp = (NSBitmapImageRep *)bitmap;
-
- NSData *tiff = [bmp TIFFRepresentation];
- return [tiff writeToFile: [NSString stringWithUTF8String: path] atomically: YES];
-}
-
-void cocoa_bitmap_modified(void *bitmap)
-{
- NSMapTable *cache = cocoa_get_bitmap_cache();
- CGImageRef image = NSMapGet( cache, bitmap );
- if (NULL != image) {
- CGImageRelease( image );
- NSMapRemove( cache, bitmap );
- }
-}
-
-CGImageRef cocoa_get_cgimage( void *bitmap )
-{
- NSMapTable *cache = cocoa_get_bitmap_cache();
-
- CGImageRef result = NSMapGet( cache, bitmap );
- if (NULL == result) {
- result = cocoa_prepare_bitmap( bitmap );
- NSMapInsertKnownAbsent( cache, bitmap, result );
- }
-
- return result;
-}
-
-
-static CGImageRef cocoa_prepare_bitmap( void *bitmap )
-{
- NSCParameterAssert( NULL != bitmap );
-
- NSBitmapImageRep *bmp = (NSBitmapImageRep *)bitmap;
-
- size_t w = [bmp pixelsWide];
- size_t h = [bmp pixelsHigh];
-
- CGImageRef original = [bmp CGImage];
-
- if (h <= 1) return CGImageRetain( original );
-
- void *data = malloc( 4 * w * h );
-
- CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
- CGContextRef context = CGBitmapContextCreate( data, w, h, BITS_PER_SAMPLE,
- BYTES_PER_PIXEL * w, colorSpace,
- [bmp isOpaque] ? kCGImageAlphaNoneSkipLast
- : kCGImageAlphaPremultipliedLast );
- CGColorSpaceRelease( colorSpace );
-
- CGContextTranslateCTM( context, 0.0, h );
- CGContextScaleCTM( context, 1.0, -1.0 );
-
- CGRect rect = CGRectMake( 0, 0, w, h );
- CGContextClearRect( context, rect );
- CGContextDrawImage( context, rect, original );
-
- CGImageRef result = CGBitmapContextCreateImage( context );
-
- CGContextRelease( context );
- free( data );
-
- return result;
-}
-
-static nserror bitmap_render(struct bitmap *bitmap, struct hlcache_handle *content)
-{
- int bwidth = bitmap_get_width( bitmap );
- int bheight = bitmap_get_height( bitmap );
-
- struct redraw_context ctx = {
- .interactive = false,
- .background_images = true,
- .plot = &cocoa_plotters
- };
-
- CGColorSpaceRef cspace = CGColorSpaceCreateWithName( kCGColorSpaceGenericRGB );
- CGContextRef bitmapContext = CGBitmapContextCreate( bitmap_get_buffer( bitmap ),
- bwidth, bheight,
- bitmap_get_bpp( bitmap ) * 8 / 4,
- bitmap_get_rowstride( bitmap ),
- cspace, kCGImageAlphaNoneSkipLast );
- CGColorSpaceRelease( cspace );
-
- size_t width = MIN( content_get_width( content ), 1024 );
- size_t height = ((width * bheight) + bwidth / 2) / bwidth;
-
- CGContextTranslateCTM( bitmapContext, 0, bheight );
- CGContextScaleCTM( bitmapContext, (CGFloat)bwidth / width, -(CGFloat)bheight / height );
-
- [NSGraphicsContext setCurrentContext: [NSGraphicsContext graphicsContextWithGraphicsPort: bitmapContext flipped: YES]];
-
- content_scaled_redraw( content, width, height, &ctx );
-
- [NSGraphicsContext setCurrentContext: nil];
- CGContextRelease( bitmapContext );
-
- cocoa_bitmap_modified( bitmap );
-
- return true;
-}
-
-static struct gui_bitmap_table bitmap_table = {
- .create = bitmap_create,
- .destroy = bitmap_destroy,
- .set_opaque = bitmap_set_opaque,
- .get_opaque = bitmap_get_opaque,
- .test_opaque = bitmap_test_opaque,
- .get_buffer = bitmap_get_buffer,
- .get_rowstride = bitmap_get_rowstride,
- .get_width = bitmap_get_width,
- .get_height = bitmap_get_height,
- .get_bpp = bitmap_get_bpp,
- .save = bitmap_save,
- .modified = cocoa_bitmap_modified,
- .render = bitmap_render,
-};
-
-struct gui_bitmap_table *cocoa_bitmap_table = &bitmap_table;