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mesa/formatquery: Added a func to check if the <target> is supported

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From the ARB_internalformat_query2 spec:

  "If the particular <target> and <internalformat> combination do not make
   sense, or if a particular type of <target> is not supported by the
   implementation the "unsupported" answer should be given. This is not an
   error."

This function checks if the <target> is supported by the implementation.

v2: Allow RENDERBUFFER targets also on GLES 3 profiles.

Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Antia Puentes 2015-12-16 20:46:49 +01:00 • committed by Eduardo Lima Mitev
parent 4af3e5e9f1
commit 806bc2bf22
1 changed files with 70 additions and 0 deletions
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70
src/mesa/main/formatquery.c
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@ -28,6 +28,7 @@
#include "enums.h"
#include "fbobject.h"
#include "formatquery.h"
#include "teximage.h"
/* Handles the cases where either ARB_internalformat_query or
* ARB_internalformat_query2 have to return an error.
@ -362,6 +363,75 @@ _set_default_response(GLenum pname, GLint buffer[16])
}
}
static bool
_is_target_supported(struct gl_context *ctx, GLenum target)
{
/* The ARB_internalformat_query2 spec says:
*
* "if a particular type of <target> is not supported by the
* implementation the "unsupported" answer should be given.
* This is not an error."
*/
switch(target){
case GL_TEXTURE_2D:
case GL_TEXTURE_3D:
break;
case GL_TEXTURE_1D:
if (!_mesa_is_desktop_gl(ctx))
return false;
break;
case GL_TEXTURE_1D_ARRAY:
if (!_mesa_has_EXT_texture_array(ctx))
return false;
break;
case GL_TEXTURE_2D_ARRAY:
if (!(_mesa_has_EXT_texture_array(ctx) || _mesa_is_gles3(ctx)))
return false;
break;
case GL_TEXTURE_CUBE_MAP:
if (!_mesa_has_ARB_texture_cube_map(ctx))
return false;
break;
case GL_TEXTURE_CUBE_MAP_ARRAY:
if (!_mesa_has_ARB_texture_cube_map_array(ctx))
return false;
break;
case GL_TEXTURE_RECTANGLE:
if (!_mesa_has_NV_texture_rectangle(ctx))
return false;
break;
case GL_TEXTURE_BUFFER:
if (!_mesa_has_ARB_texture_buffer_object(ctx))
return false;
break;
case GL_RENDERBUFFER:
if (!(_mesa_has_ARB_framebuffer_object(ctx) ||
_mesa_is_gles3(ctx)))
return false;
break;
case GL_TEXTURE_2D_MULTISAMPLE:
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
if (!(_mesa_has_ARB_texture_multisample(ctx) ||
_mesa_is_gles31(ctx)))
return false;
break;
default:
unreachable("invalid target");
}
return true;
}
/* default implementation of QueryInternalFormat driverfunc, for
* drivers not implementing ARB_internalformat_query2.
*/