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Added a Preview generator for Quick Look, so QL framework won't "ban" our plugin for failing to generate these.
This commit is contained in:
Lior Halphon
parent
517e72f92b
commit
a012d721a3
@ -1,96 +0,0 @@
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#include <QuickLook/QuickLook.h>
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#include <Cocoa/Cocoa.h>
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#include "get_image_for_rom.h"
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/* -----------------------------------------------------------------------------
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Generate a thumbnail for file
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This function's job is to create thumbnail for designated file as fast as possible
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----------------------------------------------------------------------------- */
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OSStatus GenerateThumbnailForURL(void *thisInterface, QLThumbnailRequestRef thumbnail, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options, CGSize maxSize)
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{
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@autoreleasepool {
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/* Load the template NSImages when generating the first thumbnail */
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static NSImage *template = nil;
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static NSImage *templateUniversal = nil;
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static NSImage *templateColor = nil;
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static NSBundle *bundle = nil;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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bundle = [NSBundle bundleWithIdentifier:@"com.github.liji32.sameboy.previewer"];
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template = [[NSImage alloc] initWithContentsOfFile:[bundle pathForResource:@"CartridgeTemplate" ofType:@"png"]];
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templateUniversal = [[NSImage alloc] initWithContentsOfFile:[bundle pathForResource:@"UniversalCartridgeTemplate" ofType:@"png"]];
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templateColor = [[NSImage alloc] initWithContentsOfFile:[bundle pathForResource:@"ColorCartridgeTemplate" ofType:@"png"]];
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});
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uint32_t bitmap[160*144];
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uint8_t cgbFlag = 0;
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/* The cgb_boot_fast boot ROM skips the boot animation */
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if (get_image_for_rom([[(__bridge NSURL *)url path] UTF8String],
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[[bundle pathForResource:@"cgb_boot_fast" ofType:@"bin"] UTF8String],
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bitmap, &cgbFlag, (cancel_callback_t)QLThumbnailRequestIsCancelled, thumbnail)) {
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return noErr;
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}
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/* Convert the screenshot to a CGImageRef */
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CGDataProviderRef provider = CGDataProviderCreateWithData(NULL, bitmap, sizeof(bitmap), NULL);
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CGColorSpaceRef colorSpaceRef = CGColorSpaceCreateDeviceRGB();
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CGBitmapInfo bitmapInfo = kCGBitmapByteOrderDefault;
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CGColorRenderingIntent renderingIntent = kCGRenderingIntentDefault;
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CGImageRef iref = CGImageCreate(160,
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144,
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8,
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32,
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4 * 160,
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colorSpaceRef,
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bitmapInfo,
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provider,
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NULL,
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YES,
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renderingIntent);
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/* Draw the icon */
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CGContextRef cgContext = QLThumbnailRequestCreateContext(thumbnail, [template size], false, (__bridge CFDictionaryRef)(@{@"IconFlavor" : @(0)}));
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if (cgContext) {
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NSGraphicsContext *context = [NSGraphicsContext graphicsContextWithGraphicsPort:(void *)cgContext flipped:NO];
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if (context) {
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[NSGraphicsContext setCurrentContext:context];
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/* Use the CGB flag to determine the cartrdige "look":
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- DMG cartridges are grey
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- CGB cartrdiges are transparent
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- CGB cartridges that support DMG systems are black
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*/
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NSImage *effectiveTemplate = nil;
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switch (cgbFlag) {
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case 0xC0:
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effectiveTemplate = templateColor;
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break;
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case 0x80:
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effectiveTemplate = templateUniversal;
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break;
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default:
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effectiveTemplate = template;
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}
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/* Convert the screenshot to a magnified NSImage */
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NSImage *screenshot = [[NSImage alloc] initWithCGImage:iref size:NSMakeSize(640, 576)];
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/* Draw the screenshot */
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[screenshot drawInRect:NSMakeRect(192, 150, 640, 576)];
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/* Mask it with the template (The middle part of the template image is transparent) */
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[effectiveTemplate drawInRect:(NSRect){{0,0},template.size}];
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}
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QLThumbnailRequestFlushContext(thumbnail, cgContext);
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CFRelease(cgContext);
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}
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CGColorSpaceRelease(colorSpaceRef);
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CGDataProviderRelease(provider);
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CGImageRelease(iref);
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}
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return noErr;
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}
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118
QuickLook/generator.m
Normal file
118
QuickLook/generator.m
Normal file
@ -0,0 +1,118 @@
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#include <QuickLook/QuickLook.h>
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#include <Cocoa/Cocoa.h>
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#include "get_image_for_rom.h"
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static OSStatus render(CGContextRef cgContext, CFURLRef url, cancel_callback_t cancelCallback, void *cancelData, bool showBorder)
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{
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/* Load the template NSImages when generating the first thumbnail */
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static NSImage *template = nil;
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static NSImage *templateUniversal = nil;
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static NSImage *templateColor = nil;
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static NSBundle *bundle = nil;
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static dispatch_once_t onceToken;
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if (showBorder) {
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dispatch_once(&onceToken, ^{
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bundle = [NSBundle bundleWithIdentifier:@"com.github.liji32.sameboy.previewer"];
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template = [[NSImage alloc] initWithContentsOfFile:[bundle pathForResource:@"CartridgeTemplate" ofType:@"png"]];
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templateUniversal = [[NSImage alloc] initWithContentsOfFile:[bundle pathForResource:@"UniversalCartridgeTemplate" ofType:@"png"]];
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templateColor = [[NSImage alloc] initWithContentsOfFile:[bundle pathForResource:@"ColorCartridgeTemplate" ofType:@"png"]];
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});
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}
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uint32_t bitmap[160*144];
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uint8_t cgbFlag = 0;
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/* The cgb_boot_fast boot ROM skips the boot animation */
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if (get_image_for_rom([[(__bridge NSURL *)url path] UTF8String],
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[[bundle pathForResource:@"cgb_boot_fast" ofType:@"bin"] UTF8String],
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bitmap, &cgbFlag, cancelCallback, cancelData)) {
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return -1;
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}
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/* Convert the screenshot to a CGImageRef */
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CGDataProviderRef provider = CGDataProviderCreateWithData(NULL, bitmap, sizeof(bitmap), NULL);
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CGColorSpaceRef colorSpaceRef = CGColorSpaceCreateDeviceRGB();
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CGBitmapInfo bitmapInfo = kCGBitmapByteOrderDefault;
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CGColorRenderingIntent renderingIntent = kCGRenderingIntentDefault;
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CGImageRef iref = CGImageCreate(160,
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144,
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8,
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32,
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4 * 160,
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colorSpaceRef,
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bitmapInfo,
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provider,
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NULL,
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YES,
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renderingIntent);
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CGContextSetInterpolationQuality(cgContext, kCGInterpolationNone);
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NSGraphicsContext *context = [NSGraphicsContext graphicsContextWithGraphicsPort:(void *)cgContext flipped:NO];
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[NSGraphicsContext setCurrentContext:context];
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/* Convert the screenshot to a magnified NSImage */
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NSImage *screenshot = [[NSImage alloc] initWithCGImage:iref size:NSMakeSize(160, 144)];
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/* Draw the screenshot */
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if (showBorder) {
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[screenshot drawInRect:NSMakeRect(192, 150, 640, 576)];
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}
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else {
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[screenshot drawInRect:NSMakeRect(0, 0, 640, 576)];
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}
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if (showBorder) {
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/* Use the CGB flag to determine the cartrdige "look":
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- DMG cartridges are grey
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- CGB cartrdiges are transparent
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- CGB cartridges that support DMG systems are black
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*/
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NSImage *effectiveTemplate = nil;
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switch (cgbFlag) {
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case 0xC0:
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effectiveTemplate = templateColor;
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break;
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case 0x80:
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effectiveTemplate = templateUniversal;
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break;
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default:
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effectiveTemplate = template;
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}
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/* Mask it with the template (The middle part of the template image is transparent) */
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[effectiveTemplate drawInRect:(NSRect){{0,0},template.size}];
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}
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CGColorSpaceRelease(colorSpaceRef);
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CGDataProviderRelease(provider);
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CGImageRelease(iref);
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return noErr;
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}
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OSStatus GeneratePreviewForURL(void *thisInterface, QLPreviewRequestRef preview, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options)
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{
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@autoreleasepool {
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CGContextRef cgContext = QLPreviewRequestCreateContext(preview, ((NSSize){640, 576}), true, nil);
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if (render(cgContext, url, (cancel_callback_t)QLPreviewRequestIsCancelled, preview, false) == noErr) {
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QLPreviewRequestFlushContext(preview, cgContext);
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CGContextRelease(cgContext);
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return noErr;
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}
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CGContextRelease(cgContext);
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return -1;
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}
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}
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OSStatus GenerateThumbnailForURL(void *thisInterface, QLThumbnailRequestRef thumbnail, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options, CGSize maxSize)
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{
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@autoreleasepool {
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CGContextRef cgContext = QLThumbnailRequestCreateContext(thumbnail, ((NSSize){1024, 1024}), true, (__bridge CFDictionaryRef)(@{@"IconFlavor" : @(0)}));
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if (render(cgContext, url, (cancel_callback_t)QLThumbnailIsCancelled, thumbnail, true) == noErr) {
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QLThumbnailRequestFlushContext(thumbnail, cgContext);
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CGContextRelease(cgContext);
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return noErr;
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}
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CGContextRelease(cgContext);
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return -1;
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}
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}
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@ -24,8 +24,8 @@
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// typedefs
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// -----------------------------------------------------------------------------
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// The thumbnail generation function to be implemented in GenerateThumbnailForURL.c
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OSStatus GenerateThumbnailForURL(void *thisInterface, QLThumbnailRequestRef thumbnail, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options, CGSize maxSize);
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OSStatus GeneratePreviewForURL(void *thisInterface, QLPreviewRequestRef preview, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options);
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// The layout for an instance of QuickLookGeneratorPlugIn
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typedef struct __QuickLookGeneratorPluginType
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@ -133,6 +133,7 @@ HRESULT QuickLookGeneratorQueryInterface(void *thisInstance,REFIID iid,LPVOID *p
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* return good status.
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*/
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((QLGeneratorInterfaceStruct *)((QuickLookGeneratorPluginType *)thisInstance)->conduitInterface)->GenerateThumbnailForURL = GenerateThumbnailForURL;
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((QLGeneratorInterfaceStruct *)((QuickLookGeneratorPluginType *)thisInstance)->conduitInterface)->GeneratePreviewForURL = GeneratePreviewForURL;
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((QLGeneratorInterfaceStruct *)((QuickLookGeneratorPluginType*)thisInstance)->conduitInterface)->AddRef(thisInstance);
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*ppv = thisInstance;
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CFRelease(interfaceID);
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