From: Antia Puentes <apuen...@igalia.com>
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."
---
src/mesa/main/formatquery.c | 40 +++++++++++++++++++++++++++++++++-------
1 file changed, 33 insertions(+), 7 deletions(-)
diff --git a/src/mesa/main/formatquery.c b/src/mesa/main/formatquery.c
index a412c3d..d720fc2 100644
--- a/src/mesa/main/formatquery.c
+++ b/src/mesa/main/formatquery.c
@@ -571,6 +571,23 @@ _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.
*/
@@ -620,6 +637,9 @@ _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;
@@ -1046,16 +1066,22 @@ _mesa_GetInternalformativ(GLenum target, GLenum
internalformat, GLenum pname,
buffer[0] = GL_TRUE;
break;
+ case GL_FRAMEBUFFER_RENDERABLE_LAYERED:
+ if (!ctx->Extensions.EXT_texture_array ||
+ _legal_target_for_framebuffer_texture_layer(ctx, target))
+ goto end;
+ /* fallthrough */
case GL_FRAMEBUFFER_RENDERABLE:
- /* @TODO */
- break;
+ case GL_FRAMEBUFFER_BLEND:
+ if (!ctx->Extensions.ARB_framebuffer_object)
+ goto end;
- case GL_FRAMEBUFFER_RENDERABLE_LAYERED:
- /* @TODO */
- break;
+ if (target == GL_TEXTURE_BUFFER ||
+ !_is_renderable(ctx, internalformat))
+ goto end;
- case GL_FRAMEBUFFER_BLEND:
- /* @TODO */
+ ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
+ buffer);
break;
case GL_READ_PIXELS:
--
2.5.3
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