diff options
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_extensions.c')
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_extensions.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_extensions.c b/mesalib/src/mesa/state_tracker/st_extensions.c index 11db9d3f3..2d8b9efec 100644 --- a/mesalib/src/mesa/state_tracker/st_extensions.c +++ b/mesalib/src/mesa/state_tracker/st_extensions.c @@ -629,6 +629,7 @@ void st_init_extensions(struct st_context *st) ctx->Const.PrimitiveRestartInSoftware = GL_TRUE; } + /* ARB_color_buffer_float. */ if (screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_UNCLAMPED)) { ctx->Extensions.ARB_color_buffer_float = GL_TRUE; @@ -639,6 +640,16 @@ void st_init_extensions(struct st_context *st) if (!screen->get_param(screen, PIPE_CAP_FRAGMENT_COLOR_CLAMPED)) { st->clamp_frag_color_in_shader = TRUE; } + + /* For drivers which cannot do color clamping, it's better to just + * disable ARB_color_buffer_float in the core profile, because + * the clamping is deprecated there anyway. */ + if (ctx->API == API_OPENGL_CORE && + (st->clamp_frag_color_in_shader || st->clamp_vert_color_in_shader)) { + st->clamp_vert_color_in_shader = GL_FALSE; + st->clamp_frag_color_in_shader = GL_FALSE; + ctx->Extensions.ARB_color_buffer_float = GL_FALSE; + } } if (screen->fence_finish) { |