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added OSMesaCreateContextExt()
This commit is contained in:
Brian Paul
parent
8ad306baf6
commit
2bf5d9470d
@ -1,8 +1,8 @@
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/* $Id: osmesa.h,v 1.5 2000/03/28 16:59:39 rjfrank Exp $ */
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/* $Id: osmesa.h,v 1.6 2000/09/08 16:41:38 brianp Exp $ */
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/*
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* Mesa 3-D graphics library
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* Version: 3.3
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* Version: 3.5
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*
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* Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
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*
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@ -59,11 +59,11 @@ extern "C" {
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#endif
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#include "GL/gl.h"
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#include <GL/gl.h>
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#define OSMESA_MAJOR_VERSION 3
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#define OSMESA_MINOR_VERSION 3
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#define OSMESA_MINOR_VERSION 5
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@ -114,18 +114,31 @@ typedef struct osmesa_context *OSMesaContext;
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* display lists. NULL indicates no sharing.
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* Return: an OSMesaContext or 0 if error
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*/
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GLAPI OSMesaContext GLAPIENTRY OSMesaCreateContext( GLenum format,
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OSMesaContext sharelist );
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GLAPI OSMesaContext GLAPIENTRY
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OSMesaCreateContext( GLenum format, OSMesaContext sharelist );
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/*
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* Create an Off-Screen Mesa rendering context and specify desired
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* size of depth buffer, stencil buffer and accumulation buffer.
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* If you specify zero for depthBits, stencilBits, accumBits you
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* can save some memory.
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*
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* New in Mesa 3.5
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*/
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GLAPI OSMesaContext GLAPIENTRY
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OSMesaCreateContextExt( GLenum format, GLint depthBits, GLint stencilBits,
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GLint accumBits, OSMesaContext sharelist);
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/*
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* Destroy an Off-Screen Mesa rendering context.
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*
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* Input: ctx - the context to destroy
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*/
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GLAPI void GLAPIENTRY OSMesaDestroyContext( OSMesaContext ctx );
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GLAPI void GLAPIENTRY
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OSMesaDestroyContext( OSMesaContext ctx );
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@ -156,9 +169,9 @@ GLAPI void GLAPIENTRY OSMesaDestroyContext( OSMesaContext ctx );
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* invalid buffer address, type!=GL_UNSIGNED_BYTE, width<1, height<1,
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* width>internal limit or height>internal limit.
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*/
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GLAPI GLboolean GLAPIENTRY OSMesaMakeCurrent( OSMesaContext ctx,
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void *buffer, GLenum type,
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GLsizei width, GLsizei height );
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GLAPI GLboolean GLAPIENTRY
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OSMesaMakeCurrent( OSMesaContext ctx, void *buffer, GLenum type,
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GLsizei width, GLsizei height );
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@ -166,7 +179,8 @@ GLAPI GLboolean GLAPIENTRY OSMesaMakeCurrent( OSMesaContext ctx,
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/*
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* Return the current Off-Screen Mesa rendering context handle.
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*/
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GLAPI OSMesaContext GLAPIENTRY OSMesaGetCurrentContext( void );
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GLAPI OSMesaContext GLAPIENTRY
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OSMesaGetCurrentContext( void );
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@ -183,7 +197,8 @@ GLAPI OSMesaContext GLAPIENTRY OSMesaGetCurrentContext( void );
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*
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* New in version 2.0.
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*/
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GLAPI void GLAPIENTRY OSMesaPixelStore( GLint pname, GLint value );
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GLAPI void GLAPIENTRY
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OSMesaPixelStore( GLint pname, GLint value );
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@ -198,7 +213,8 @@ GLAPI void GLAPIENTRY OSMesaPixelStore( GLint pname, GLint value );
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* OSMESA_Y_UP returns 1 or 0 to indicate Y axis direction
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* value - pointer to integer in which to return result.
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*/
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GLAPI void GLAPIENTRY OSMesaGetIntegerv( GLint pname, GLint *value );
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GLAPI void GLAPIENTRY
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OSMesaGetIntegerv( GLint pname, GLint *value );
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@ -212,10 +228,10 @@ GLAPI void GLAPIENTRY OSMesaGetIntegerv( GLint pname, GLint *value );
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*
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* New in Mesa 2.4.
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*/
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GLAPI GLboolean GLAPIENTRY OSMesaGetDepthBuffer( OSMesaContext c,
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GLint *width, GLint *height,
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GLint *bytesPerValue,
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void **buffer );
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GLAPI GLboolean GLAPIENTRY
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OSMesaGetDepthBuffer( OSMesaContext c, GLint *width, GLint *height,
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GLint *bytesPerValue, void **buffer );
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/*
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@ -228,10 +244,10 @@ GLAPI GLboolean GLAPIENTRY OSMesaGetDepthBuffer( OSMesaContext c,
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*
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* New in Mesa 3.3.
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*/
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GLAPI GLboolean GLAPIENTRY OSMesaGetColorBuffer( OSMesaContext c,
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GLint *width, GLint *height,
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GLint *format,
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void **buffer );
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GLAPI GLboolean GLAPIENTRY
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OSMesaGetColorBuffer( OSMesaContext c, GLint *width, GLint *height,
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GLint *format, void **buffer );
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#if defined(__BEOS__) || defined(__QUICKDRAW__)
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@ -1,4 +1,4 @@
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/* $Id: osmesa.c,v 1.19 2000/06/27 21:42:14 brianp Exp $ */
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/* $Id: osmesa.c,v 1.20 2000/09/08 16:41:39 brianp Exp $ */
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/*
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* Mesa 3-D graphics library
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@ -99,11 +99,26 @@ static void osmesa_update_state( GLcontext *ctx );
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*/
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OSMesaContext GLAPIENTRY
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OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
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{
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return OSMesaCreateContextExt(format, DEFAULT_SOFTWARE_DEPTH_BITS,
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8, 16, sharelist);
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}
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/*
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* New in Mesa 3.5
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*
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* Create context and specify size of ancillary buffers.
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*/
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OSMesaContext GLAPIENTRY
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OSMesaCreateContextExt( GLenum format, GLint depthBits, GLint stencilBits,
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GLint accumBits, OSMesaContext sharelist )
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{
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OSMesaContext osmesa;
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GLint rshift, gshift, bshift, ashift;
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GLint rind, gind, bind;
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GLint indexBits, alphaBits;
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GLint indexBits, redBits, greenBits, blueBits, alphaBits;
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GLboolean rgbmode;
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GLboolean swalpha;
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GLuint i4 = 1;
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@ -119,6 +134,9 @@ OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
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}
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else if (format==OSMESA_RGBA) {
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indexBits = 0;
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redBits = 8;
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greenBits = 8;
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blueBits = 8;
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alphaBits = 8;
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if (little_endian) {
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rshift = 0;
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@ -136,6 +154,9 @@ OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
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}
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else if (format==OSMESA_BGRA) {
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indexBits = 0;
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redBits = 8;
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greenBits = 8;
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blueBits = 8;
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alphaBits = 8;
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if (little_endian) {
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ashift = 0;
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@ -153,6 +174,9 @@ OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
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}
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else if (format==OSMESA_ARGB) {
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indexBits = 0;
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redBits = 8;
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greenBits = 8;
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blueBits = 8;
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alphaBits = 8;
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if (little_endian) {
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bshift = 0;
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@ -170,6 +194,9 @@ OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
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}
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else if (format==OSMESA_RGB) {
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indexBits = 0;
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redBits = 8;
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greenBits = 8;
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blueBits = 8;
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alphaBits = 0;
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bshift = 0;
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gshift = 8;
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@ -183,6 +210,9 @@ OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
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}
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else if (format==OSMESA_BGR) {
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indexBits = 0;
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redBits = 8;
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greenBits = 8;
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blueBits = 8;
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alphaBits = 0;
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bshift = 0;
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gshift = 8;
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@ -201,15 +231,22 @@ OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
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osmesa = (OSMesaContext) CALLOC_STRUCT(osmesa_context);
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if (osmesa) {
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osmesa->gl_visual = gl_create_visual( rgbmode,
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swalpha, /* software alpha */
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GL_FALSE, /* double buffer */
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GL_FALSE, /* stereo */
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DEFAULT_SOFTWARE_DEPTH_BITS,
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STENCIL_BITS,
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rgbmode ? ACCUM_BITS : 0,
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indexBits,
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8, 8, 8, alphaBits );
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osmesa->gl_visual = _mesa_create_visual( rgbmode,
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GL_FALSE, /* double buffer */
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GL_FALSE, /* stereo */
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redBits,
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greenBits,
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blueBits,
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alphaBits,
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indexBits,
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depthBits,
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stencilBits,
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accumBits,
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accumBits,
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accumBits,
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alphaBits ? accumBits : 0,
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1 /* num samples */
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);
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if (!osmesa->gl_visual) {
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FREE(osmesa);
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return NULL;
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@ -262,6 +299,7 @@ OSMesaCreateContext( GLenum format, OSMesaContext sharelist )
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/*
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* Destroy an Off-Screen Mesa rendering context.
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*
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