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/*
* Mesa 3-D graphics library
* Version: 7.1
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* Authors:
* George Sapountzis <gsap7@yahoo.gr>
*/
#ifndef _SWRAST_PRIV_H
#define _SWRAST_PRIV_H
#include <GL/gl.h>
#include <GL/internal/dri_interface.h>
#include "main/mtypes.h"
/**
* Debugging
*/
#define DEBUG_CORE 0
#define DEBUG_SPAN 0
#if DEBUG_CORE
#define TRACE _mesa_printf("--> %s\n", __FUNCTION__)
#else
#define TRACE
#endif
#if DEBUG_SPAN
#define TRACE_SPAN _mesa_printf("--> %s\n", __FUNCTION__)
#else
#define TRACE_SPAN
#endif
/**
* Data types
*/
struct __DRIscreenRec {
int num;
const __DRIextension **extensions;
const __DRIswrastLoaderExtension *swrast_loader;
};
struct __DRIcontextRec {
GLcontext Base;
void *loaderPrivate;
__DRIscreen *driScreenPriv;
};
struct __DRIdrawableRec {
GLframebuffer Base;
void *loaderPrivate;
__DRIscreen *driScreenPriv;
/* scratch row for optimized front-buffer rendering */
char *row;
};
struct swrast_renderbuffer {
struct gl_renderbuffer Base;
/* renderbuffer pitch (in bytes) */
GLuint pitch;
};
static INLINE __DRIcontext *
swrast_context(GLcontext *ctx)
{
return (__DRIcontext *) ctx;
}
static INLINE __DRIdrawable *
swrast_drawable(GLframebuffer *fb)
{
return (__DRIdrawable *) fb;
}
static INLINE struct swrast_renderbuffer *
swrast_renderbuffer(struct gl_renderbuffer *rb)
{
return (struct swrast_renderbuffer *) rb;
}
/**
* Pixel formats we support
*/
#define PF_CI8 1 /**< Color Index mode */
#define PF_A8R8G8B8 2 /**< 32-bit TrueColor: 8-A, 8-R, 8-G, 8-B bits */
#define PF_R5G6B5 3 /**< 16-bit TrueColor: 5-R, 6-G, 5-B bits */
#define PF_R3G3B2 4 /**< 8-bit TrueColor: 3-R, 3-G, 2-B bits */
/**
* Renderbuffer pitch alignment (in bits).
*
* The xorg loader requires padding images to 32 bits. However, this should
* become a screen/drawable parameter XXX
*/
#define PITCH_ALIGN_BITS 32
/* swrast_span.c */
extern void
swrast_set_span_funcs_back(struct swrast_renderbuffer *xrb,
GLuint pixel_format);
extern void
swrast_set_span_funcs_front(struct swrast_renderbuffer *xrb,
GLuint pixel_format);
#endif /* _SWRAST_PRIV_H_ */
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