texgetimage.c File Reference

#include "glheader.h"
#include "bufferobj.h"
#include "context.h"
#include "image.h"
#include "texcompress.h"
#include "texformat.h"
#include "texgetimage.h"
#include "teximage.h"
#include "texstate.h"

Functions
static INLINE GLboolean	type_with_negative_values (GLenum type)
	Code for glGetTexImage() and glGetCompressedTexImage().
void	_mesa_get_teximage (GLcontext *ctx, GLenum target, GLint level, GLenum format, GLenum type, GLvoid *pixels, struct gl_texture_object *texObj, struct gl_texture_image *texImage)
	This is the software fallback for Driver.GetTexImage().
void	_mesa_get_compressed_teximage (GLcontext *ctx, GLenum target, GLint level, GLvoid *img, struct gl_texture_object *texObj, struct gl_texture_image *texImage)
	This is the software fallback for Driver.GetCompressedTexImage().
static GLboolean	getteximage_error_check (GLcontext *ctx, GLenum target, GLint level, GLenum format, GLenum type, GLvoid *pixels)
	Do error checking for a glGetTexImage() call.
void GLAPIENTRY	_mesa_GetTexImage (GLenum target, GLint level, GLenum format, GLenum type, GLvoid *pixels)
	Get texture image.
void GLAPIENTRY	_mesa_GetCompressedTexImageARB (GLenum target, GLint level, GLvoid *img)

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Function Documentation

void _mesa_get_compressed_teximage	(	GLcontext *	ctx,
		GLenum	target,
		GLint	level,
		GLvoid *	img,
		struct gl_texture_object *	texObj,
		struct gl_texture_image *	texImage
	)

This is the software fallback for Driver.GetCompressedTexImage().

All error checking will have been done before this routine is called.

void _mesa_get_teximage	(	GLcontext *	ctx,
		GLenum	target,
		GLint	level,
		GLenum	format,
		GLenum	type,
		GLvoid *	pixels,
		struct gl_texture_object *	texObj,
		struct gl_texture_image *	texImage
	)

This is the software fallback for Driver.GetTexImage().

All error checking will have been done before this routine is called.

void GLAPIENTRY _mesa_GetCompressedTexImageARB	(	GLenum	target,
		GLint	level,
		GLvoid *	img
	)

void GLAPIENTRY _mesa_GetTexImage	(	GLenum	target,
		GLint	level,
		GLenum	format,
		GLenum	type,
		GLvoid *	pixels
	)

Get texture image.

Called by glGetTexImage.

Parameters:

	target	texture target.
	level	image level.
	format	pixel data format for returned image.
	type	pixel data type for returned image.
	pixels	returned pixel data.

static GLboolean getteximage_error_check	(	GLcontext *	ctx,
		GLenum	target,
		GLint	level,
		GLenum	format,
		GLenum	type,
		GLvoid *	pixels
	)			[static]

Do error checking for a glGetTexImage() call.

Returns:

GL_TRUE if any error, GL_FALSE if no errors.

static INLINE GLboolean type_with_negative_values

(

GLenum

type

)

[static]

Code for glGetTexImage() and glGetCompressedTexImage().

Can the given type represent negative values?

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