mirror of
https://git.sr.ht/~eliasnaur/gio
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Elias Naur
c080a54038
Android can only run c-shared libraries which means that every Gio program must create its window and event loop from an init function. The same applies to iOS but for a more benign reason: the gio tool builds programs in c-archive mode for iOS and links the binary with a Objective-C driver. Allow Gio programs to run off its main function by linking to and invoking main even from Android libraries and iOS ditto. Signed-off-by: Elias Naur <mail@eliasnaur.com>
45 lines
1.2 KiB
Objective-C
45 lines
1.2 KiB
Objective-C
// SPDX-License-Identifier: Unlicense OR MIT
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// +build darwin,ios
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@import UIKit;
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@import OpenGLES;
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#include "gl_ios.h"
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int gio_renderbufferStorage(CFTypeRef ctxRef, CFTypeRef layerRef, GLenum buffer) {
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EAGLContext *ctx = (__bridge EAGLContext *)ctxRef;
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CAEAGLLayer *layer = (__bridge CAEAGLLayer *)layerRef;
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return (int)[ctx renderbufferStorage:buffer fromDrawable:layer];
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}
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int gio_presentRenderbuffer(CFTypeRef ctxRef, GLenum buffer) {
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EAGLContext *ctx = (__bridge EAGLContext *)ctxRef;
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return (int)[ctx presentRenderbuffer:buffer];
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}
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int gio_makeCurrent(CFTypeRef ctxRef) {
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EAGLContext *ctx = (__bridge EAGLContext *)ctxRef;
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return (int)[EAGLContext setCurrentContext:ctx];
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}
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CFTypeRef gio_createContext(void) {
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EAGLContext *ctx = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES3];
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if (ctx == nil) {
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return nil;
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}
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return CFBridgingRetain(ctx);
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}
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CFTypeRef gio_createGLLayer(void) {
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CAEAGLLayer *layer = [[CAEAGLLayer layer] init];
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if (layer == nil) {
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return nil;
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}
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layer.drawableProperties = @{kEAGLDrawablePropertyColorFormat: kEAGLColorFormatSRGBA8};
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//layer.presentsWithTransaction = YES;
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layer.opaque = YES;
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layer.anchorPoint = CGPointMake(0, 0);
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return CFBridgingRetain(layer);
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}
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