142 lines
4.0 KiB
Objective-C
142 lines
4.0 KiB
Objective-C
/*
|
|
* Mostly based on the cocoa port:
|
|
* 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/>.
|
|
*/
|
|
|
|
|
|
#import <Cocoa/Cocoa.h>
|
|
|
|
#import "netsurf/netsurf.h"
|
|
#import "netsurf/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)
|
|
|
|
/********************/
|
|
/****** Bitmap ******/
|
|
/********************/
|
|
|
|
// Create a new bitmap of width height
|
|
static void *gnustep_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 (void*) bmp;
|
|
}
|
|
|
|
// Destroy the specified bitmap
|
|
static void gnustep_bitmap_destroy(void *bitmap) {
|
|
[(id)bitmap dealloc];
|
|
}
|
|
|
|
// Set whether it's opaque or not
|
|
static void gnustep_bitmap_set_opaque(void *bitmap, bool opaque) {
|
|
if (opaque) {
|
|
[(id)bitmap setOpaque: YES];
|
|
} else {
|
|
[(id)bitmap setOpaque: NO];
|
|
}
|
|
}
|
|
|
|
// Get whether it's opaque or not
|
|
static bool gnustep_bitmap_get_opaque(void *bitmap) {
|
|
return [(id)bitmap isOpaque];
|
|
}
|
|
|
|
// Test? whether it's opaque or not
|
|
static bool gnustep_bitmap_test_opaque(void *bitmap) {
|
|
unsigned char *buf = [(id)bitmap bitmapData];
|
|
|
|
const size_t height = [(id)bitmap pixelsHigh];
|
|
const size_t width = [(id)bitmap pixelsWide];
|
|
|
|
const size_t line_step = [(id)bitmap bytesPerRow] - 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;
|
|
}
|
|
|
|
// Get the image buffer for the bitmap
|
|
static unsigned char *gnustep_bitmap_get_buffer(void *bitmap) {
|
|
return [(id)bitmap bitmapData];
|
|
}
|
|
|
|
// Get the number of bytes per row of the bitmap
|
|
static size_t gnustep_bitmap_get_rowstride(void *bitmap) {
|
|
return [(id)bitmap bytesPerRow];
|
|
}
|
|
|
|
// Get its width in pixels
|
|
static int gnustep_bitmap_get_width(void *bitmap) {
|
|
return [(id)bitmap pixelsWide];
|
|
}
|
|
|
|
// Get height in pixels
|
|
static int gnustep_bitmap_get_height(void *bitmap) {
|
|
return [(id)bitmap pixelsHigh];
|
|
}
|
|
|
|
// Save the bitmap to the specified path
|
|
static bool gnustep_bitmap_save(void *bitmap, const char *path, unsigned flags) {
|
|
NSData *tiff = [(id)bitmap TIFFRepresentation];
|
|
return [tiff writeToFile: [NSString stringWithUTF8String: path] atomically: YES];
|
|
}
|
|
|
|
// Mark bitmap as modified
|
|
static void gnustep_bitmap_modified(void *bitmap) {
|
|
}
|
|
|
|
// Render content into the specified bitmap
|
|
static nserror gnustep_bitmap_render(struct bitmap *bitmap, struct hlcache_handle *content) {
|
|
return NSERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
struct gui_bitmap_table gnustep_bitmap_table = {
|
|
.create = gnustep_bitmap_create,
|
|
.destroy = gnustep_bitmap_destroy,
|
|
.set_opaque = gnustep_bitmap_set_opaque,
|
|
.get_opaque = gnustep_bitmap_get_opaque,
|
|
.get_buffer = gnustep_bitmap_get_buffer,
|
|
.get_rowstride = gnustep_bitmap_get_rowstride,
|
|
.get_width = gnustep_bitmap_get_width,
|
|
.get_height = gnustep_bitmap_get_height,
|
|
.modified = gnustep_bitmap_modified,
|
|
.render = gnustep_bitmap_render
|
|
};
|