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added OSMesaCreateContextExt()

This commit is contained in:
Brian Paul 2000-09-08 16:41:38 +00:00
parent 8ad306baf6
commit 2bf5d9470d
2 changed files with 86 additions and 32 deletions
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58
include/GL/osmesa.h
View File

@ -1,8 +1,8 @@
/* $Id: osmesa.h,v 1.5 2000/03/28 16:59:39 rjfrank Exp $ */
/* $Id: osmesa.h,v 1.6 2000/09/08 16:41:38 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.3
* Version: 3.5
*
* Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
*
@ -59,11 +59,11 @@ extern "C" {
#endif
#include "GL/gl.h"
#include <GL/gl.h>
#define OSMESA_MAJOR_VERSION 3
#define OSMESA_MINOR_VERSION 3
#define OSMESA_MINOR_VERSION 5
@ -114,18 +114,31 @@ typedef struct osmesa_context *OSMesaContext;
* display lists. NULL indicates no sharing.
* Return: an OSMesaContext or 0 if error
*/
GLAPI OSMesaContext GLAPIENTRY OSMesaCreateContext( GLenum format,
OSMesaContext sharelist );
GLAPI OSMesaContext GLAPIENTRY
OSMesaCreateContext( GLenum format, OSMesaContext sharelist );
/*
* Create an Off-Screen Mesa rendering context and specify desired
* size of depth buffer, stencil buffer and accumulation buffer.
* If you specify zero for depthBits, stencilBits, accumBits you
* can save some memory.
*
* New in Mesa 3.5
*/
GLAPI OSMesaContext GLAPIENTRY
OSMesaCreateContextExt( GLenum format, GLint depthBits, GLint stencilBits,
GLint accumBits, OSMesaContext sharelist);
/*
* Destroy an Off-Screen Mesa rendering context.
*
* Input: ctx - the context to destroy
*/
GLAPI void GLAPIENTRY OSMesaDestroyContext( OSMesaContext ctx );
GLAPI void GLAPIENTRY
OSMesaDestroyContext( OSMesaContext ctx );
@ -156,9 +169,9 @@ GLAPI void GLAPIENTRY OSMesaDestroyContext( OSMesaContext ctx );
* invalid buffer address, type!=GL_UNSIGNED_BYTE, width<1, height<1,
* width>internal limit or height>internal limit.
*/
GLAPI GLboolean GLAPIENTRY OSMesaMakeCurrent( OSMesaContext ctx,
void *buffer, GLenum type,
GLsizei width, GLsizei height );
GLAPI GLboolean GLAPIENTRY
OSMesaMakeCurrent( OSMesaContext ctx, void *buffer, GLenum type,
GLsizei width, GLsizei height );
@ -166,7 +179,8 @@ GLAPI GLboolean GLAPIENTRY OSMesaMakeCurrent( OSMesaContext ctx,
/*
* Return the current Off-Screen Mesa rendering context handle.
*/
GLAPI OSMesaContext GLAPIENTRY OSMesaGetCurrentContext( void );
GLAPI OSMesaContext GLAPIENTRY
OSMesaGetCurrentContext( void );
@ -183,7 +197,8 @@ GLAPI OSMesaContext GLAPIENTRY OSMesaGetCurrentContext( void );
*
* New in version 2.0.
*/
GLAPI void GLAPIENTRY OSMesaPixelStore( GLint pname, GLint value );
GLAPI void GLAPIENTRY
OSMesaPixelStore( GLint pname, GLint value );
@ -198,7 +213,8 @@ GLAPI void GLAPIENTRY OSMesaPixelStore( GLint pname, GLint value );
* OSMESA_Y_UP returns 1 or 0 to indicate Y axis direction
* value - pointer to integer in which to return result.
*/
GLAPI void GLAPIENTRY OSMesaGetIntegerv( GLint pname, GLint *value );
GLAPI void GLAPIENTRY
OSMesaGetIntegerv( GLint pname, GLint *value );
@ -212,10 +228,10 @@ GLAPI void GLAPIENTRY OSMesaGetIntegerv( GLint pname, GLint *value );
*
* New in Mesa 2.4.
*/
GLAPI GLboolean GLAPIENTRY OSMesaGetDepthBuffer( OSMesaContext c,
GLint *width, GLint *height,
GLint *bytesPerValue,
void **buffer );
GLAPI GLboolean GLAPIENTRY
OSMesaGetDepthBuffer( OSMesaContext c, GLint *width, GLint *height,
GLint *bytesPerValue, void **buffer );
/*
@ -228,10 +244,10 @@ GLAPI GLboolean GLAPIENTRY OSMesaGetDepthBuffer( OSMesaContext c,
*
* New in Mesa 3.3.
*/
GLAPI GLboolean GLAPIENTRY OSMesaGetColorBuffer( OSMesaContext c,
GLint *width, GLint *height,
GLint *format,
void **buffer );
GLAPI GLboolean GLAPIENTRY
OSMesaGetColorBuffer( OSMesaContext c, GLint *width, GLint *height,
GLint *format, void **buffer );
#if defined(__BEOS__) || defined(__QUICKDRAW__)

60
src/mesa/drivers/osmesa/osmesa.c
View File

@ -1,4 +1,4 @@
/* $Id: osmesa.c,v 1.19 2000/06/27 21:42:14 brianp Exp $ */
/* $Id: osmesa.c,v 1.20 2000/09/08 16:41:39 brianp Exp $ */
/*
* Mesa 3-D graphics library
@ -99,11 +99,26 @@ static void osmesa_update_state( GLcontext *ctx );
*/
OSMesaContext GLAPIENTRY
OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
{
return OSMesaCreateContextExt(format, DEFAULT_SOFTWARE_DEPTH_BITS,
8, 16, sharelist);
}
/*
* New in Mesa 3.5
*
* Create context and specify size of ancillary buffers.
*/
OSMesaContext GLAPIENTRY
OSMesaCreateContextExt( GLenum format, GLint depthBits, GLint stencilBits,
GLint accumBits, OSMesaContext sharelist )
{
OSMesaContext osmesa;
GLint rshift, gshift, bshift, ashift;
GLint rind, gind, bind;
GLint indexBits, alphaBits;
GLint indexBits, redBits, greenBits, blueBits, alphaBits;
GLboolean rgbmode;
GLboolean swalpha;
GLuint i4 = 1;
@ -119,6 +134,9 @@ OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
}
else if (format==OSMESA_RGBA) {
indexBits = 0;
redBits = 8;
greenBits = 8;
blueBits = 8;
alphaBits = 8;
if (little_endian) {
rshift = 0;
@ -136,6 +154,9 @@ OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
}
else if (format==OSMESA_BGRA) {
indexBits = 0;
redBits = 8;
greenBits = 8;
blueBits = 8;
alphaBits = 8;
if (little_endian) {
ashift = 0;
@ -153,6 +174,9 @@ OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
}
else if (format==OSMESA_ARGB) {
indexBits = 0;
redBits = 8;
greenBits = 8;
blueBits = 8;
alphaBits = 8;
if (little_endian) {
bshift = 0;
@ -170,6 +194,9 @@ OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
}
else if (format==OSMESA_RGB) {
indexBits = 0;
redBits = 8;
greenBits = 8;
blueBits = 8;
alphaBits = 0;
bshift = 0;
gshift = 8;
@ -183,6 +210,9 @@ OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
}
else if (format==OSMESA_BGR) {
indexBits = 0;
redBits = 8;
greenBits = 8;
blueBits = 8;
alphaBits = 0;
bshift = 0;
gshift = 8;
@ -201,15 +231,22 @@ OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
osmesa = (OSMesaContext) CALLOC_STRUCT(osmesa_context);
if (osmesa) {
osmesa->gl_visual = gl_create_visual( rgbmode,
swalpha, /* software alpha */
GL_FALSE, /* double buffer */
GL_FALSE, /* stereo */
DEFAULT_SOFTWARE_DEPTH_BITS,
STENCIL_BITS,
rgbmode ? ACCUM_BITS : 0,
indexBits,
8, 8, 8, alphaBits );
osmesa->gl_visual = _mesa_create_visual( rgbmode,
GL_FALSE, /* double buffer */
GL_FALSE, /* stereo */
redBits,
greenBits,
blueBits,
alphaBits,
indexBits,
depthBits,
stencilBits,
accumBits,
accumBits,
accumBits,
alphaBits ? accumBits : 0,
1 /* num samples */
);
if (!osmesa->gl_visual) {
FREE(osmesa);
return NULL;
@ -262,6 +299,7 @@ OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
/*
* Destroy an Off-Screen Mesa rendering context.
*