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//
// GL3Code.m
// Pcsxr
//
// Created by C.W. Betts on 11/26/13.
//
//
#import <Cocoa/Cocoa.h>
#include <OpenGL/gl3.h>
#include <OpenGL/gl3ext.h>
#import <GLKit/GLKit.h>
#import "PluginGLView.h"
#import "SGPUPreferences.h"
#include "externals.h"
#undef BOOL
#include "gpu.h"
#include "swap.h"
static int mylog2(int val)
{
int i;
for (i=1; i<31; i++)
if (val <= (1 << i))
return (1 << i);
return -1;
}
@implementation PluginGLView (GL3)
- (BOOL)setupOpenGL3
{
static const NSOpenGLPixelFormatAttribute attrs[] =
{
NSOpenGLPFAAccelerated,
NSOpenGLPFANoRecovery,
NSOpenGLPFADoubleBuffer,
NSOpenGLPFAOpenGLProfile,
NSOpenGLProfileVersion3_2Core,
0
};
// Get pixel format from OpenGL
NSOpenGLPixelFormat* pixFmt = [[NSOpenGLPixelFormat alloc] initWithAttributes:attrs];
if (!pixFmt)
return NO;
[self setPixelFormat:pixFmt];
return NO;
}
- (void)cleanupGL3
{
}
- (void)reshapeGL3
{
NSOpenGLContext *oglContext = [self openGLContext];
NSRect rect;
[oglContext makeCurrentContext];
[oglContext update];
rect = [[oglContext view] bounds];
glViewport(0, 0, (int) rect.size.width, (int) rect.size.height);
//glMatrixMode(GL_PROJECTION);
//glLoadIdentity();
//glMatrixMode(GL_MODELVIEW);
//glLoadIdentity();
drawBG = YES;
[NSOpenGLContext clearCurrentContext];
}
- (void)renderScreenGL3
{
NSRect rect = [[[self openGLContext] view] bounds];
GLKMatrix4 matrix = GLKMatrix4MakeOrtho(0, rect.size.width, 0, rect.size.height, 0, 0);
}
- (void)loadTexturesGL3:(GLboolean)first
{
}
- (void)swapBufferGL3
{
}
- (GLuint)loadShader:(GLenum)type location:(NSURL*)filename
{
GLuint myShader = 0;
GLsizei logsize = 0;
GLint compile_status = GL_TRUE;
char *log = NULL;
char *src = NULL;
/* creation d'un shader de sommet */
myShader = glCreateShader(type);
if(myShader == 0)
{
fprintf(stderr, "impossible de creer le shader\n");
return 0;
}
/* chargement du code source */
src = [self loadSource:filename];
if(src == NULL)
{
/* theoriquement, la fonction LoadSource a deja affiche un message
d'erreur, nous nous contenterons de supprimer notre shader
et de retourner 0 */
glDeleteShader(myShader);
return 0;
}
/* assignation du code source */
glShaderSource(myShader, 1, (const GLchar**)&src, NULL);
/* compilation du shader */
glCompileShader(myShader);
/* liberation de la memoire du code source */
free(src);
src = NULL;
/* verification du succes de la compilation */
glGetShaderiv(myShader, GL_COMPILE_STATUS, &compile_status);
if(compile_status != GL_TRUE)
{
/* erreur a la compilation recuperation du log d'erreur */
/* on recupere la taille du message d'erreur */
glGetShaderiv(myShader, GL_INFO_LOG_LENGTH, &logsize);
/* on alloue un espace memoire dans lequel OpenGL ecrira le message */
log = malloc(logsize + 1);
if(log == NULL)
{
fprintf(stderr, "impossible d'allouer de la memoire !\n");
return 0;
}
/* initialisation du contenu */
memset(log, '\0', logsize + 1);
glGetShaderInfoLog(myShader, logsize, &logsize, log);
fprintf(stderr, "impossible de compiler le shader '%s' :\n%s",
[[filename path] UTF8String], log);
/* ne pas oublier de liberer la memoire et notre shader */
free(log);
glDeleteShader(myShader);
return 0;
}
return myShader;
}
@end
void printProgramInfoLog(GLuint obj)
{
int infologLength = 0;
int charsWritten = 0;
char *infoLog;
glGetProgramiv(obj, GL_INFO_LOG_LENGTH, &infologLength);
if (infologLength > 0)
{
infoLog = (char *)malloc(infologLength);
glGetProgramInfoLog(obj, infologLength, &charsWritten, infoLog);
printf("%s\n",infoLog);
free(infoLog);
}
}
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