Set default values for the constants required in
ARB_framebuffer_no_attachments and obtained the number
of layers from ``PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS``.
Signed-off-by: Edward O'Callaghan <eocallag...@alterapraxis.com>
---
src/mesa/state_tracker/st_extensions.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/src/mesa/state_tracker/st_extensions.c
b/src/mesa/state_tracker/st_extensions.c
index 840ad40..2975d6d 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -1042,10 +1042,29 @@ void st_init_extensions(struct pipe_screen *screen,
extensions->AMD_vertex_shader_viewport_index = GL_TRUE;
}
+ /* ARB_framebuffer_no_attachments */
+ consts->MaxFramebufferWidth = consts->MaxViewportWidth;
+ consts->MaxFramebufferHeight = consts->MaxViewportHeight;
+ consts->MaxFramebufferSamples = consts->MaxSamples;
+ /* N.B., we cheat here a little by assuming that
+ * PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS has the same
+ * number of layers as we need, although we technically
+ * could have more the generality is not really useful
+ * in practicality.
+ */
+ consts->MaxFramebufferLayers
+ = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS);
+
/* Bitmask of MSAA modes supported by the hardware. */
consts->MSAAModes
= screen->get_param(screen, PIPE_CAP_MSAA_MODES);
+ if ((consts->MaxSamples >= 4 && consts->MaxFramebufferLayers >= 2048)
+ || (consts->MaxFramebufferSamples >= consts->MaxSamples &&
+ consts->MaxFramebufferLayers >= consts->MaxArrayTextureLayers))
+ extensions->ARB_framebuffer_no_attachments = GL_TRUE;
+
+
/* GL_ARB_ES3_compatibility.
*
* Assume that ES3 is supported if GLSL 3.30 is supported.
--
2.5.0
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