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Improved texture loading on iOS

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This commit is contained in:
Xawotihs
2010-11-25 23:18:57 +00:00
parent 29805852c8
commit 4951442499
1 changed files with 89 additions and 65 deletions
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JGE/src/pc/JGfx.cpp
+89 -65
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@@ -2046,81 +2046,105 @@ void JRenderer::LoadGIF(TextureInfo &textureInfo, const char *filename, int mode
JTexture* JRenderer::LoadTexture(const char* filename, int mode, int TextureFormat __attribute__((unused)))
{
TextureInfo textureInfo;
JTexture *tex = NULL;
textureInfo.mBits = NULL;
NSString *path = [NSString stringWithUTF8String: JGE_GET_RES(filename).c_str()];
// NSString *path = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:newString2];
NSData *texData = [[NSData alloc] initWithContentsOfFile:path];
UIImage *image = [[UIImage alloc] initWithData:texData];
if (image == nil)
NSLog(@"Do real error checking here");
textureInfo.mWidth = CGImageGetWidth(image.CGImage);
textureInfo.mHeight = CGImageGetHeight(image.CGImage);
textureInfo.mTexWidth = textureInfo.mWidth;
textureInfo.mTexHeight = textureInfo.mHeight;
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
textureInfo.mBits = new u8 [ textureInfo.mHeight * textureInfo.mWidth * 4 ];
CGContextRef context = CGBitmapContextCreate( textureInfo.mBits, textureInfo.mWidth, textureInfo.mHeight, 8, 4 * textureInfo.mWidth, colorSpace, kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big );
CGColorSpaceRelease( colorSpace );
CGContextClearRect( context, CGRectMake( 0, 0, textureInfo.mWidth, textureInfo.mHeight ) );
CGContextTranslateCTM( context, 0, textureInfo.mHeight - textureInfo.mHeight );
CGContextDrawImage( context, CGRectMake( 0, 0, textureInfo.mWidth, textureInfo.mHeight ), image.CGImage );
if (textureInfo.mBits == NULL) {
printf("Texture %s failed to load\n", filename);
return NULL;
}
bool ret = false;
JTexture *tex = new JTexture();
if (tex)
{
if (mImageFilter != NULL)
mImageFilter->ProcessImage((PIXEL_TYPE*)textureInfo.mBits, textureInfo.mWidth, textureInfo.mHeight);
CGImageAlphaInfo info;
BOOL hasAlpha;
do {
info = CGImageGetAlphaInfo(image.CGImage);
hasAlpha = ((info == kCGImageAlphaPremultipliedLast) || (info == kCGImageAlphaPremultipliedFirst) || (info == kCGImageAlphaLast) || (info == kCGImageAlphaFirst) ? YES : NO);
tex->mFilter = TEX_FILTER_LINEAR;
tex->mWidth = textureInfo.mWidth;
tex->mHeight = textureInfo.mHeight;
tex->mTexWidth = textureInfo.mTexWidth;
tex->mTexHeight = textureInfo.mTexHeight;
if (image == nil) {
NSLog(@"Loading Texture : %s failed", filename);
break;
}
GLuint texid;
checkGlError();
glGenTextures(1, &texid);
tex->mTexId = texid;
// glError = glGetError();
textureInfo.mWidth = CGImageGetWidth(image.CGImage);
textureInfo.mHeight = CGImageGetHeight(image.CGImage);
textureInfo.mTexWidth = getNextPower2(textureInfo.mWidth);
textureInfo.mTexHeight = getNextPower2(textureInfo.mHeight);
mCurrentTex = texid;
glBindTexture(GL_TEXTURE_2D, mCurrentTex); // Bind To The Texture ID
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, textureInfo.mTexWidth, textureInfo.mTexHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, textureInfo.mBits);
ret = true;
}
CGContextRelease(context);
delete [] textureInfo.mBits;
//delete textureInfo;
[image release];
[texData release];
NSLog(@"Loading Texture : %s : %s : %ux%u", filename, (hasAlpha?"Alpha ":"No Alpha "), textureInfo.mWidth, textureInfo.mHeight);
textureInfo.mBits = new u8 [ textureInfo.mTexHeight * textureInfo.mTexWidth * 4 ];
if (textureInfo.mBits == NULL) {
NSLog(@"Texture %s failed to load\n", filename);
break;
}
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
info = hasAlpha ? kCGImageAlphaPremultipliedLast : kCGImageAlphaNoneSkipLast;
CGContextRef context =
CGBitmapContextCreate(textureInfo.mBits,
textureInfo.mTexWidth,
textureInfo.mTexHeight, 8,
4 * textureInfo.mTexWidth,
colorSpace,
info /*| kCGBitmapByteOrder32Big*/);
CGColorSpaceRelease(colorSpace);
CGContextClearRect( context, CGRectMake( 0, 0, textureInfo.mTexWidth, textureInfo.mTexHeight ) );
CGContextTranslateCTM( context, 0, textureInfo.mTexHeight - textureInfo.mHeight );
if(!hasAlpha) {
CGContextSetAlpha(context, 1.0f);
}
CGContextDrawImage( context, CGRectMake( 0, 0, textureInfo.mWidth, textureInfo.mHeight ), image.CGImage );
bool ret = false;
tex = new JTexture();
if (!ret)
{
if (tex)
delete tex;
tex = NULL;
}
{
if (mImageFilter != NULL)
mImageFilter->ProcessImage((PIXEL_TYPE*)textureInfo.mBits, textureInfo.mWidth, textureInfo.mHeight);
tex->mFilter = TEX_FILTER_LINEAR;
tex->mWidth = textureInfo.mWidth;
tex->mHeight = textureInfo.mHeight;
tex->mTexWidth = textureInfo.mTexWidth;
tex->mTexHeight = textureInfo.mTexHeight;
GLuint texid;
checkGlError();
glGenTextures(1, &texid);
tex->mTexId = texid;
// glError = glGetError();
mCurrentTex = texid;
glBindTexture(GL_TEXTURE_2D, mCurrentTex); // Bind To The Texture ID
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, textureInfo.mTexWidth, textureInfo.mTexHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, textureInfo.mBits);
ret = true;
} else {
NSLog(@"JTexture for %s not created\n", filename);
}
CGContextRelease(context);
delete [] textureInfo.mBits;
//delete textureInfo;
[image release];
[texData release];
if (!ret)
{
if (tex)
delete tex;
tex = NULL;
}
} while(0);
checkGlError();
return tex;