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osmesa: add new OSMesaCreateContextAttribs function

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This allows specifying a GL profile and version so one can get a core-
profile context.

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
This commit is contained in:
Brian Paul
2015-12-15 15:33:54 -07:00
parent c2c0983215
commit a34e7612dc
3 changed files with 144 additions and 3 deletions
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45
include/GL/osmesa.h
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@@ -58,8 +58,8 @@ extern "C" {
#include <GL/gl.h>
#define OSMESA_MAJOR_VERSION 10
#define OSMESA_MINOR_VERSION 0
#define OSMESA_MAJOR_VERSION 11
#define OSMESA_MINOR_VERSION 2
#define OSMESA_PATCH_VERSION 0
@@ -95,6 +95,18 @@ extern "C" {
#define OSMESA_MAX_WIDTH 0x24 /* new in 4.0 */
#define OSMESA_MAX_HEIGHT 0x25 /* new in 4.0 */
/*
* Accepted in OSMesaCreateContextAttrib's attribute list.
*/
#define OSMESA_DEPTH_BITS 0x30
#define OSMESA_STENCIL_BITS 0x31
#define OSMESA_ACCUM_BITS 0x32
#define OSMESA_PROFILE 0x33
#define OSMESA_CORE_PROFILE 0x34
#define OSMESA_COMPAT_PROFILE 0x35
#define OSMESA_CONTEXT_MAJOR_VERSION 0x36
#define OSMESA_CONTEXT_MINOR_VERSION 0x37
typedef struct osmesa_context *OSMesaContext;
@@ -127,6 +139,35 @@ OSMesaCreateContextExt( GLenum format, GLint depthBits, GLint stencilBits,
GLint accumBits, OSMesaContext sharelist);
/*
* Create an Off-Screen Mesa rendering context with attribute list.
* The list is composed of (attribute, value) pairs and terminated with
* attribute==0. Supported Attributes:
*
* Attributes Values
* --------------------------------------------------------------------------
* OSMESA_FORMAT OSMESA_RGBA*, OSMESA_BGRA, OSMESA_ARGB, etc.
* OSMESA_DEPTH_BITS 0*, 16, 24, 32
* OSMESA_STENCIL_BITS 0*, 8
* OSMESA_ACCUM_BITS 0*, 16
* OSMESA_PROFILE OSMESA_COMPAT_PROFILE*, OSMESA_CORE_PROFILE
* OSMESA_CONTEXT_MAJOR_VERSION 1*, 2, 3
* OSMESA_CONTEXT_MINOR_VERSION 0+
*
* Note: * = default value
*
* We return a context version >= what's specified by OSMESA_CONTEXT_MAJOR/
* MINOR_VERSION for the given profile. For example, if you request a GL 1.4
* compat profile, you might get a GL 3.0 compat profile.
* Otherwise, null is returned if the version/profile is not supported.
*
* New in Mesa 11.2
*/
GLAPI OSMesaContext GLAPIENTRY
OSMesaCreateContextAttribs( const int *attribList, OSMesaContext sharelist );
/*
* Destroy an Off-Screen Mesa rendering context.
*