According to the ARB_viewport_array spec, GL4 limit is higher than the
GL3 limit. Also take this opportunity to fix the GL3 limit.
Signed-off-by: Ilia Mirkin <imir...@alum.mit.edu>
Cc: "11.0" <mesa-sta...@lists.freedesktop.org>
---
src/mesa/state_tracker/st_extensions.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/src/mesa/state_tracker/st_extensions.c
b/src/mesa/state_tracker/st_extensions.c
index 17f572f..884761c 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -873,8 +873,13 @@ void st_init_extensions(struct pipe_screen *screen,
consts->MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
if (consts->MaxViewports >= 16) {
- consts->ViewportBounds.Min = -16384.0;
- consts->ViewportBounds.Max = 16384.0;
+ if (glsl_feature_level >= 400) {
+ consts->ViewportBounds.Min = -32768.0;
+ consts->ViewportBounds.Max = 32767.0;
+ } else {
+ consts->ViewportBounds.Min = -16384.0;
+ consts->ViewportBounds.Max = 16383.0;
+ }
extensions->ARB_viewport_array = GL_TRUE;
extensions->ARB_fragment_layer_viewport = GL_TRUE;
if (extensions->AMD_vertex_shader_layer)
--
2.4.6
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