Sources/Classes/Toolkits/Model/OpenGL/Texture/2D/Author/Facade/OpenGLTexture2DAuthor.m
//--------------------------------------------------------------------------- |
// |
// File: OpenGLTexture2DAuthor.m |
// |
// Abstract: Utility toolkit for managing PBOs for texture read or writes. |
// |
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//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
#import "OpenGLTexture2DAuthorProtocol.h" |
#import "OpenGLTexture2DReader.h" |
#import "OpenGLTexture2DWriter.h" |
#import "OpenGLTexture2DAuthor.h" |
//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
#pragma mark - |
#pragma mark Private - Data Structures |
//--------------------------------------------------------------------------- |
struct OpenGLTexture2DAuthorData |
{ |
BOOL isReadOnly; |
BOOL isWriteOnly; |
NSSize size; |
id<OpenGLTexture2DAuthorProtocol> author; |
}; |
typedef struct OpenGLTexture2DAuthorData OpenGLTexture2DAuthorData; |
//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
#pragma mark - |
#pragma mark Private - Constructors |
//--------------------------------------------------------------------------- |
static OpenGLTexture2DAuthorDataRef OpenGLTexture2DAuthorCreate(const NSSize *pSize, |
const GLenum usage, |
const GLenum target, |
const GLint level, |
const GLenum format, |
const BOOL hasBorder) |
{ |
OpenGLTexture2DAuthorDataRef pTex2DAuthor = (OpenGLTexture2DAuthorDataRef)calloc(1, sizeof(OpenGLTexture2DAuthorData)); |
if( pTex2DAuthor != NULL ) |
{ |
pTex2DAuthor->isWriteOnly = (usage == GL_STREAM_DRAW) || (usage == GL_STATIC_DRAW) || (usage == GL_DYNAMIC_DRAW); |
pTex2DAuthor->isReadOnly = (usage == GL_STREAM_READ) || (usage == GL_STATIC_READ) || (usage == GL_DYNAMIC_READ); |
if( pTex2DAuthor->isWriteOnly ) |
{ |
pTex2DAuthor->author = [[OpenGLTexture2DWriter alloc] initTexture2DWriterWithSize:pSize |
usage:usage |
target:target |
level:level |
format:format |
border:hasBorder]; |
} // if |
else |
{ |
if( !pTex2DAuthor->isReadOnly ) |
{ |
NSLog( @">> WARNING: OpenGL Texture 2D Author - Invalid usage!" ); |
NSLog( @">> WARNING: OpenGL Texture 2D Author - Usage is set to stream read!" ); |
} // if |
pTex2DAuthor->author = [[OpenGLTexture2DReader alloc] initTexture2DReaderWithSize:pSize |
usage:usage |
target:target |
level:level |
format:format |
border:hasBorder]; |
} // else |
if( pTex2DAuthor->author ) |
{ |
pTex2DAuthor->size.width = (CGFloat)[pTex2DAuthor->author width]; |
pTex2DAuthor->size.height = (CGFloat)[pTex2DAuthor->author height]; |
} // if |
} // if |
else |
{ |
NSLog( @">> ERROR: OpenGL Texture 2D Author - Allocating memory for authoring failed!" ); |
} // else |
return( pTex2DAuthor ); |
} // OpenGLTexture2DAuthorCreate |
//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
#pragma mark - |
#pragma mark Private - Destructor |
//--------------------------------------------------------------------------- |
static void OpenGLTexture2DAuthorDelete(OpenGLTexture2DAuthorDataRef pTex2DAuthor) |
{ |
if( pTex2DAuthor != NULL ) |
{ |
if( pTex2DAuthor->author ) |
{ |
[pTex2DAuthor->author release]; |
pTex2DAuthor->author = nil; |
} // if |
free( pTex2DAuthor ); |
pTex2DAuthor = NULL; |
} // if |
} // OpenGLTexture2DAuthorDelete |
//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
#pragma mark - |
//--------------------------------------------------------------------------- |
@implementation OpenGLTexture2DAuthor |
//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
#pragma mark - |
#pragma mark Public - Designated Initializers |
//--------------------------------------------------------------------------- |
// |
// Initialize |
// |
//--------------------------------------------------------------------------- |
- (id) initTexture2DAuthorWithSize:(const NSSize *)theSize |
usage:(const GLenum)theUsage |
target:(const GLenum)theTarget |
format:(const GLenum)theFormat |
{ |
self = [super init]; |
if( self ) |
{ |
mpTex2DAuthor = OpenGLTexture2DAuthorCreate(theSize, |
theUsage, |
theTarget, |
0, |
theFormat, |
NO); |
} // if |
return self; |
} // initTexture2DAuthorWithSize |
//--------------------------------------------------------------------------- |
- (id) initTexture2DAuthorWithSize:(const NSSize *)theSize |
usage:(const GLenum)theUsage |
target:(const GLenum)theTarget |
level:(const GLint)thelevel |
format:(const GLenum)theFormat |
border:(const BOOL)hasBorder |
{ |
self = [super init]; |
if( self ) |
{ |
mpTex2DAuthor = OpenGLTexture2DAuthorCreate(theSize, |
theUsage, |
theTarget, |
thelevel, |
theFormat, |
hasBorder); |
} // if |
return self; |
} // initTexture2DAuthorWithSize |
//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
#pragma mark - |
#pragma mark Public - Destructor |
//--------------------------------------------------------------------------- |
- (void) dealloc |
{ |
OpenGLTexture2DAuthorDelete(mpTex2DAuthor); |
[super dealloc]; |
} // dealloc |
//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
#pragma mark - |
#pragma mark Public - Accessors |
//--------------------------------------------------------------------------- |
- (GLuint) texture |
{ |
return( [mpTex2DAuthor->author texture] ); |
} // texture |
//--------------------------------------------------------------------------- |
- (GLenum) target |
{ |
return( [mpTex2DAuthor->author target] ); |
} // target |
//--------------------------------------------------------------------------- |
- (GLenum) format |
{ |
return( [mpTex2DAuthor->author format] ); |
} // format |
//--------------------------------------------------------------------------- |
- (GLuint) width |
{ |
return( [mpTex2DAuthor->author width] ); |
} // width |
//--------------------------------------------------------------------------- |
- (GLuint) height |
{ |
return( [mpTex2DAuthor->author height] ); |
} // height |
//--------------------------------------------------------------------------- |
- (GLuint) size |
{ |
return( [mpTex2DAuthor->author size] ); |
} // size |
//--------------------------------------------------------------------------- |
- (GLint) level |
{ |
return( [mpTex2DAuthor->author level] ); |
} // level |
//--------------------------------------------------------------------------- |
- (GLuint) rowBytes |
{ |
return( [mpTex2DAuthor->author rowBytes] ); |
} // rowbytes |
//--------------------------------------------------------------------------- |
- (GLuint) samplesPerPixel |
{ |
return( [mpTex2DAuthor->author samplesPerPixel] ); |
} // samplesPerPixel |
//--------------------------------------------------------------------------- |
- (GLfloat) aspect |
{ |
return( [mpTex2DAuthor->author aspect] ); |
} // aspect |
//--------------------------------------------------------------------------- |
- (GLvoid *) buffer |
{ |
return( [mpTex2DAuthor->author buffer] ); |
} // buffer |
//--------------------------------------------------------------------------- |
- (NSSize) bounds |
{ |
return( mpTex2DAuthor->size ); |
} // bounds |
//--------------------------------------------------------------------------- |
- (BOOL) isReadOnly |
{ |
return( mpTex2DAuthor->isReadOnly ); |
} // isReadOnly |
//--------------------------------------------------------------------------- |
- (BOOL) isWriteOnly |
{ |
return( mpTex2DAuthor->isWriteOnly ); |
} // isWriteOnly |
//--------------------------------------------------------------------------- |
- (BOOL) setSize:(const NSSize *)theSize |
{ |
return( [mpTex2DAuthor->author setSize:theSize] ); |
} // setSize |
//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
#pragma mark - |
#pragma mark Public - Utilities |
//--------------------------------------------------------------------------- |
- (BOOL) map |
{ |
return( [mpTex2DAuthor->author map] ); |
} // map |
//--------------------------------------------------------------------------- |
- (BOOL) unmap |
{ |
return( [mpTex2DAuthor->author unmap] ); |
} // unmap |
//--------------------------------------------------------------------------- |
- (void) bind |
{ |
[mpTex2DAuthor->author bind]; |
} // bind |
//--------------------------------------------------------------------------- |
- (void) unbind |
{ |
[mpTex2DAuthor->author unbind]; |
} // unbind |
//--------------------------------------------------------------------------- |
- (BOOL) copy:(const GLvoid *)theBuffer |
needsVR:(const BOOL)doVR |
{ |
return( [mpTex2DAuthor->author copy:theBuffer |
needsVR:doVR] ); |
} // write |
//--------------------------------------------------------------------------- |
@end |
//--------------------------------------------------------------------------- |
//--------------------------------------------------------------------------- |
Copyright © 2011 Apple Inc. All Rights Reserved. Terms of Use | Privacy Policy | Updated: 2011-06-27