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mesa/formatquery: Added framebuffer renderability related queries

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From the ARB_internalformat_query2 specification:

   "- FRAMEBUFFER_RENDERABLE: The support for rendering to the resource via
      framebuffer attachment is returned in <params>.

    - FRAMEBUFFER_RENDERABLE_LAYERED: The support for layered rendering to
      the resource via framebuffer attachment is returned in <params>.

    - FRAMEBUFFER_BLEND: The support for rendering to the resource
      via framebuffer attachment when blending is enabled is returned in
      <params>."

For all of them,
    "Possible values returned are FULL_SUPPORT, CAVEAT_SUPPORT, or NONE.
     If the resource is unsupported, NONE is returned."

Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Antia Puentes
2015-12-21 18:55:56 +01:00
committed by Eduardo Lima Mitev
parent b4ee9f56fd
commit e8ab7727e1
1 changed files with 34 additions and 8 deletions
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src/mesa/main/formatquery.c
+34 -8
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@@ -573,6 +573,23 @@ _is_internalformat_supported(struct gl_context *ctx, GLenum target,
return (buffer[0] == GL_TRUE);
}
static bool
_legal_target_for_framebuffer_texture_layer(struct gl_context *ctx,
GLenum target)
{
switch (target) {
case GL_TEXTURE_3D:
case GL_TEXTURE_1D_ARRAY:
case GL_TEXTURE_2D_ARRAY:
case GL_TEXTURE_CUBE_MAP_ARRAY:
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
case GL_TEXTURE_CUBE_MAP:
return true;
default:
return false;
}
}
/* default implementation of QueryInternalFormat driverfunc, for
* drivers not implementing ARB_internalformat_query2.
*/
@@ -622,6 +639,9 @@ _mesa_query_internal_format_default(struct gl_context *ctx, GLenum target,
case GL_TEXTURE_SHADOW:
case GL_TEXTURE_GATHER:
case GL_TEXTURE_GATHER_SHADOW:
case GL_FRAMEBUFFER_RENDERABLE:
case GL_FRAMEBUFFER_RENDERABLE_LAYERED:
case GL_FRAMEBUFFER_BLEND:
params[0] = GL_FULL_SUPPORT;
break;
@@ -1050,16 +1070,22 @@ _mesa_GetInternalformativ(GLenum target, GLenum internalformat, GLenum pname,
buffer[0] = GL_TRUE;
break;
case GL_FRAMEBUFFER_RENDERABLE:
/* @TODO */
break;
case GL_FRAMEBUFFER_RENDERABLE_LAYERED:
/* @TODO */
break;
if (!_mesa_has_EXT_texture_array(ctx) ||
_legal_target_for_framebuffer_texture_layer(ctx, target))
goto end;
/* fallthrough */
case GL_FRAMEBUFFER_RENDERABLE:
case GL_FRAMEBUFFER_BLEND:
/* @TODO */
if (!_mesa_has_ARB_framebuffer_object(ctx))
goto end;
if (target == GL_TEXTURE_BUFFER ||
!_is_renderable(ctx, internalformat))
goto end;
ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
buffer);
break;
case GL_READ_PIXELS: