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 2017-01-22 00:10:27 +02:00
parent 517e72f92b
commit a012d721a3
3 changed files with 120 additions and 97 deletions

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@ -1,96 +0,0 @@
#include <QuickLook/QuickLook.h>
#include <Cocoa/Cocoa.h>
#include "get_image_for_rom.h"
/* -----------------------------------------------------------------------------
Generate a thumbnail for file
This function's job is to create thumbnail for designated file as fast as possible
----------------------------------------------------------------------------- */
OSStatus GenerateThumbnailForURL(void *thisInterface, QLThumbnailRequestRef thumbnail, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options, CGSize maxSize)
{
@autoreleasepool {
/* Load the template NSImages when generating the first thumbnail */
static NSImage *template = nil;
static NSImage *templateUniversal = nil;
static NSImage *templateColor = nil;
static NSBundle *bundle = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
bundle = [NSBundle bundleWithIdentifier:@"com.github.liji32.sameboy.previewer"];
template = [[NSImage alloc] initWithContentsOfFile:[bundle pathForResource:@"CartridgeTemplate" ofType:@"png"]];
templateUniversal = [[NSImage alloc] initWithContentsOfFile:[bundle pathForResource:@"UniversalCartridgeTemplate" ofType:@"png"]];
templateColor = [[NSImage alloc] initWithContentsOfFile:[bundle pathForResource:@"ColorCartridgeTemplate" ofType:@"png"]];
});
uint32_t bitmap[160*144];
uint8_t cgbFlag = 0;
/* The cgb_boot_fast boot ROM skips the boot animation */
if (get_image_for_rom([[(__bridge NSURL *)url path] UTF8String],
[[bundle pathForResource:@"cgb_boot_fast" ofType:@"bin"] UTF8String],
bitmap, &cgbFlag, (cancel_callback_t)QLThumbnailRequestIsCancelled, thumbnail)) {
return noErr;
}
/* Convert the screenshot to a CGImageRef */
CGDataProviderRef provider = CGDataProviderCreateWithData(NULL, bitmap, sizeof(bitmap), NULL);
CGColorSpaceRef colorSpaceRef = CGColorSpaceCreateDeviceRGB();
CGBitmapInfo bitmapInfo = kCGBitmapByteOrderDefault;
CGColorRenderingIntent renderingIntent = kCGRenderingIntentDefault;
CGImageRef iref = CGImageCreate(160,
144,
8,
32,
4 * 160,
colorSpaceRef,
bitmapInfo,
provider,
NULL,
YES,
renderingIntent);
/* Draw the icon */
CGContextRef cgContext = QLThumbnailRequestCreateContext(thumbnail, [template size], false, (__bridge CFDictionaryRef)(@{@"IconFlavor" : @(0)}));
if (cgContext) {
NSGraphicsContext *context = [NSGraphicsContext graphicsContextWithGraphicsPort:(void *)cgContext flipped:NO];
if (context) {
[NSGraphicsContext setCurrentContext:context];
/* Use the CGB flag to determine the cartrdige "look":
- DMG cartridges are grey
- CGB cartrdiges are transparent
- CGB cartridges that support DMG systems are black
*/
NSImage *effectiveTemplate = nil;
switch (cgbFlag) {
case 0xC0:
effectiveTemplate = templateColor;
break;
case 0x80:
effectiveTemplate = templateUniversal;
break;
default:
effectiveTemplate = template;
}
/* Convert the screenshot to a magnified NSImage */
NSImage *screenshot = [[NSImage alloc] initWithCGImage:iref size:NSMakeSize(640, 576)];
/* Draw the screenshot */
[screenshot drawInRect:NSMakeRect(192, 150, 640, 576)];
/* Mask it with the template (The middle part of the template image is transparent) */
[effectiveTemplate drawInRect:(NSRect){{0,0},template.size}];
}
QLThumbnailRequestFlushContext(thumbnail, cgContext);
CFRelease(cgContext);
}
CGColorSpaceRelease(colorSpaceRef);
CGDataProviderRelease(provider);
CGImageRelease(iref);
}
return noErr;
}

118
QuickLook/generator.m Normal file
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@ -0,0 +1,118 @@
#include <QuickLook/QuickLook.h>
#include <Cocoa/Cocoa.h>
#include "get_image_for_rom.h"
static OSStatus render(CGContextRef cgContext, CFURLRef url, cancel_callback_t cancelCallback, void *cancelData, bool showBorder)
{
/* Load the template NSImages when generating the first thumbnail */
static NSImage *template = nil;
static NSImage *templateUniversal = nil;
static NSImage *templateColor = nil;
static NSBundle *bundle = nil;
static dispatch_once_t onceToken;
if (showBorder) {
dispatch_once(&onceToken, ^{
bundle = [NSBundle bundleWithIdentifier:@"com.github.liji32.sameboy.previewer"];
template = [[NSImage alloc] initWithContentsOfFile:[bundle pathForResource:@"CartridgeTemplate" ofType:@"png"]];
templateUniversal = [[NSImage alloc] initWithContentsOfFile:[bundle pathForResource:@"UniversalCartridgeTemplate" ofType:@"png"]];
templateColor = [[NSImage alloc] initWithContentsOfFile:[bundle pathForResource:@"ColorCartridgeTemplate" ofType:@"png"]];
});
}
uint32_t bitmap[160*144];
uint8_t cgbFlag = 0;
/* The cgb_boot_fast boot ROM skips the boot animation */
if (get_image_for_rom([[(__bridge NSURL *)url path] UTF8String],
[[bundle pathForResource:@"cgb_boot_fast" ofType:@"bin"] UTF8String],
bitmap, &cgbFlag, cancelCallback, cancelData)) {
return -1;
}
/* Convert the screenshot to a CGImageRef */
CGDataProviderRef provider = CGDataProviderCreateWithData(NULL, bitmap, sizeof(bitmap), NULL);
CGColorSpaceRef colorSpaceRef = CGColorSpaceCreateDeviceRGB();
CGBitmapInfo bitmapInfo = kCGBitmapByteOrderDefault;
CGColorRenderingIntent renderingIntent = kCGRenderingIntentDefault;
CGImageRef iref = CGImageCreate(160,
144,
8,
32,
4 * 160,
colorSpaceRef,
bitmapInfo,
provider,
NULL,
YES,
renderingIntent);
CGContextSetInterpolationQuality(cgContext, kCGInterpolationNone);
NSGraphicsContext *context = [NSGraphicsContext graphicsContextWithGraphicsPort:(void *)cgContext flipped:NO];
[NSGraphicsContext setCurrentContext:context];
/* Convert the screenshot to a magnified NSImage */
NSImage *screenshot = [[NSImage alloc] initWithCGImage:iref size:NSMakeSize(160, 144)];
/* Draw the screenshot */
if (showBorder) {
[screenshot drawInRect:NSMakeRect(192, 150, 640, 576)];
}
else {
[screenshot drawInRect:NSMakeRect(0, 0, 640, 576)];
}
if (showBorder) {
/* Use the CGB flag to determine the cartrdige "look":
- DMG cartridges are grey
- CGB cartrdiges are transparent
- CGB cartridges that support DMG systems are black
*/
NSImage *effectiveTemplate = nil;
switch (cgbFlag) {
case 0xC0:
effectiveTemplate = templateColor;
break;
case 0x80:
effectiveTemplate = templateUniversal;
break;
default:
effectiveTemplate = template;
}
/* Mask it with the template (The middle part of the template image is transparent) */
[effectiveTemplate drawInRect:(NSRect){{0,0},template.size}];
}
CGColorSpaceRelease(colorSpaceRef);
CGDataProviderRelease(provider);
CGImageRelease(iref);
return noErr;
}
OSStatus GeneratePreviewForURL(void *thisInterface, QLPreviewRequestRef preview, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options)
{
@autoreleasepool {
CGContextRef cgContext = QLPreviewRequestCreateContext(preview, ((NSSize){640, 576}), true, nil);
if (render(cgContext, url, (cancel_callback_t)QLPreviewRequestIsCancelled, preview, false) == noErr) {
QLPreviewRequestFlushContext(preview, cgContext);
CGContextRelease(cgContext);
return noErr;
}
CGContextRelease(cgContext);
return -1;
}
}
OSStatus GenerateThumbnailForURL(void *thisInterface, QLThumbnailRequestRef thumbnail, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options, CGSize maxSize)
{
@autoreleasepool {
CGContextRef cgContext = QLThumbnailRequestCreateContext(thumbnail, ((NSSize){1024, 1024}), true, (__bridge CFDictionaryRef)(@{@"IconFlavor" : @(0)}));
if (render(cgContext, url, (cancel_callback_t)QLThumbnailIsCancelled, thumbnail, true) == noErr) {
QLThumbnailRequestFlushContext(thumbnail, cgContext);
CGContextRelease(cgContext);
return noErr;
}
CGContextRelease(cgContext);
return -1;
}
}

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@ -24,8 +24,8 @@
// typedefs // typedefs
// ----------------------------------------------------------------------------- // -----------------------------------------------------------------------------
// The thumbnail generation function to be implemented in GenerateThumbnailForURL.c
OSStatus GenerateThumbnailForURL(void *thisInterface, QLThumbnailRequestRef thumbnail, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options, CGSize maxSize); OSStatus GenerateThumbnailForURL(void *thisInterface, QLThumbnailRequestRef thumbnail, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options, CGSize maxSize);
OSStatus GeneratePreviewForURL(void *thisInterface, QLPreviewRequestRef preview, CFURLRef url, CFStringRef contentTypeUTI, CFDictionaryRef options);
// The layout for an instance of QuickLookGeneratorPlugIn // The layout for an instance of QuickLookGeneratorPlugIn
typedef struct __QuickLookGeneratorPluginType typedef struct __QuickLookGeneratorPluginType
@ -133,6 +133,7 @@ HRESULT QuickLookGeneratorQueryInterface(void *thisInstance,REFIID iid,LPVOID *p
* return good status. * return good status.
*/ */
((QLGeneratorInterfaceStruct *)((QuickLookGeneratorPluginType *)thisInstance)->conduitInterface)->GenerateThumbnailForURL = GenerateThumbnailForURL; ((QLGeneratorInterfaceStruct *)((QuickLookGeneratorPluginType *)thisInstance)->conduitInterface)->GenerateThumbnailForURL = GenerateThumbnailForURL;
((QLGeneratorInterfaceStruct *)((QuickLookGeneratorPluginType *)thisInstance)->conduitInterface)->GeneratePreviewForURL = GeneratePreviewForURL;
((QLGeneratorInterfaceStruct *)((QuickLookGeneratorPluginType*)thisInstance)->conduitInterface)->AddRef(thisInstance); ((QLGeneratorInterfaceStruct *)((QuickLookGeneratorPluginType*)thisInstance)->conduitInterface)->AddRef(thisInstance);
*ppv = thisInstance; *ppv = thisInstance;
CFRelease(interfaceID); CFRelease(interfaceID);