mirror of
https://github.com/darlinghq/darling-cocotron.git
synced 2024-11-26 21:40:44 +00:00
109 lines
2.8 KiB
Objective-C
109 lines
2.8 KiB
Objective-C
#import <Onyx2D/O2Surface.h>
|
|
#import <OpenGL/OpenGL.h>
|
|
#import <QuartzCore/CAWindowOpenGLContext.h>
|
|
|
|
@implementation CAWindowOpenGLContext
|
|
|
|
- initWithCGLContext: (CGLContextObj) cglContext {
|
|
_cglContext = CGLRetainContext(cglContext);
|
|
return self;
|
|
}
|
|
|
|
- (void) dealloc {
|
|
CGLReleaseContext(_cglContext);
|
|
[super dealloc];
|
|
}
|
|
|
|
- (void) prepareViewportWidth: (int) width height: (int) height {
|
|
// prepare
|
|
CGLError error;
|
|
|
|
if ((error = CGLSetCurrentContext(_cglContext)) != kCGLNoError)
|
|
NSLog(@"CGLSetCurrentContext failed with %d in %s %d", error, __FILE__,
|
|
__LINE__);
|
|
|
|
glEnable(GL_DEPTH_TEST);
|
|
glShadeModel(GL_SMOOTH);
|
|
|
|
// reshape
|
|
glViewport(0, 0, width, height);
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity();
|
|
glOrtho(0, width, 0, height, -1, 1);
|
|
}
|
|
|
|
- (void) renderSurface: (O2Surface *) surface {
|
|
size_t width = O2ImageGetWidth(surface);
|
|
size_t height = O2ImageGetHeight(surface);
|
|
|
|
// prepare
|
|
glEnable(GL_DEPTH_TEST);
|
|
glShadeModel(GL_SMOOTH);
|
|
|
|
// reshape
|
|
glViewport(0, 0, width, height);
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity();
|
|
glOrtho(0, width, 0, height, -1, 1);
|
|
|
|
// render
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();
|
|
|
|
glClearColor(0, 0, 0, 0);
|
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
|
|
|
glEnable(GL_TEXTURE_2D);
|
|
glEnableClientState(GL_VERTEX_ARRAY);
|
|
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
|
|
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
|
|
|
|
width = O2ImageGetWidth(surface);
|
|
height = O2ImageGetHeight(surface);
|
|
|
|
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_BGRA,
|
|
GL_UNSIGNED_INT_8_8_8_8_REV, [surface pixelBytes]);
|
|
|
|
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
|
|
|
GLfloat vertices[4 * 2];
|
|
GLfloat texture[4 * 2];
|
|
|
|
vertices[0] = 0;
|
|
vertices[1] = 0;
|
|
vertices[2] = width;
|
|
vertices[3] = 0;
|
|
vertices[4] = 0;
|
|
vertices[5] = height;
|
|
vertices[6] = width;
|
|
vertices[7] = height;
|
|
|
|
texture[0] = 0;
|
|
texture[1] = 1;
|
|
texture[2] = 1;
|
|
texture[3] = 1;
|
|
texture[4] = 0;
|
|
texture[5] = 0;
|
|
texture[6] = 1;
|
|
texture[7] = 0;
|
|
|
|
glPushMatrix();
|
|
// glTranslatef(width/2,height/2,0);
|
|
glTexCoordPointer(2, GL_FLOAT, 0, texture);
|
|
glVertexPointer(2, GL_FLOAT, 0, vertices);
|
|
// glTranslatef(center.x,center.y,0);
|
|
// glRotatef(1,0,0,1);
|
|
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
|
|
glPopMatrix();
|
|
|
|
glFlush();
|
|
}
|
|
|
|
@end
|