void GLAPIENTRY
_mesa_GetBufferParameterivARB(GLenum target, GLenum pname, GLint *params)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_buffer_object *bufObj;
ASSERT_OUTSIDE_BEGIN_END(ctx);
bufObj = get_buffer(ctx, target);
if (!bufObj) {
_mesa_error(ctx, GL_INVALID_ENUM, "GetBufferParameterivARB(target)" );
return;
}
if (bufObj->Name == 0) {
_mesa_error(ctx, GL_INVALID_OPERATION, "GetBufferParameterivARB" );
return;
}
switch (pname) {
case GL_BUFFER_SIZE_ARB:
*params = (GLint) bufObj->Size;
break;
case GL_BUFFER_USAGE_ARB:
*params = bufObj->Usage;
break;
case GL_BUFFER_ACCESS_ARB:
*params = simplified_access_mode(bufObj->AccessFlags);
break;
case GL_BUFFER_MAPPED_ARB:
*params = (bufObj->Pointer != NULL);
break;
default:
_mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameterivARB(pname)");
return;
}
}
/**
* New in GL 3.2
* This is pretty much a duplicate of GetBufferParameteriv() but the
* GL_BUFFER_SIZE_ARB attribute will be 64-bits on a 64-bit system.
*/
void GLAPIENTRY
_mesa_GetBufferParameteri64v(GLenum target, GLenum pname, GLint64 *params)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_buffer_object *bufObj;
ASSERT_OUTSIDE_BEGIN_END(ctx);
bufObj = get_buffer(ctx, "glGetBufferParameteri64v", target);
if (!bufObj)
return;
switch (pname) {
case GL_BUFFER_SIZE_ARB:
*params = bufObj->Size;
return;
case GL_BUFFER_USAGE_ARB:
*params = bufObj->Usage;
return;
case GL_BUFFER_ACCESS_ARB:
*params = simplified_access_mode(bufObj->AccessFlags);
return;
case GL_BUFFER_ACCESS_FLAGS:
if (!ctx->Extensions.ARB_map_buffer_range)
goto invalid_pname;
*params = bufObj->AccessFlags;
return;
case GL_BUFFER_MAPPED_ARB:
*params = _mesa_bufferobj_mapped(bufObj);
return;
case GL_BUFFER_MAP_OFFSET:
if (!ctx->Extensions.ARB_map_buffer_range)
goto invalid_pname;
*params = bufObj->Offset;
return;
case GL_BUFFER_MAP_LENGTH:
if (!ctx->Extensions.ARB_map_buffer_range)
goto invalid_pname;
*params = bufObj->Length;
return;
default:
; /* fall-through */
}
invalid_pname:
_mesa_error(ctx, GL_INVALID_ENUM, "glGetBufferParameteri64v(pname=%s)",
_mesa_lookup_enum_by_nr(pname));
}
