I don't think it's possible or even useful to use the extension with GLSL 1.2.
---
src/mesa/state_tracker/st_extensions.c | 5 +----
1 files changed, 1 insertions(+), 4 deletions(-)
diff --git a/src/mesa/state_tracker/st_extensions.c
b/src/mesa/state_tracker/st_extensions.c
index 6fea1fa..fd95075 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -578,6 +578,7 @@ void st_init_extensions(struct st_context *st)
/* Extensions that only depend on GLSL 1.3. */
ctx->Extensions.ARB_conservative_depth = GL_TRUE;
+ ctx->Extensions.ARB_shader_bit_encoding = GL_TRUE;
} else {
/* Optional integer support for GLSL 1.2. */
if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
@@ -595,10 +596,6 @@ void st_init_extensions(struct st_context *st)
ctx->Extensions.S3_s3tc = GL_FALSE;
}
- if (ctx->Const.NativeIntegers) {
- ctx->Extensions.ARB_shader_bit_encoding = GL_TRUE;
- }
-
if (screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY,
PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
#if 0 /* XXX re-enable when GLSL compiler again supports geometry shaders */
--
1.7.4.1
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