i965: Add a function to translate MESA_SHADER_* into DEBUG_* enums.

When compiling, we have a gl_shader_stage (MESA_SHADER_*) enum, and want
to know whether debugging is enabled for that stage.  This allows us to
easily translate it into the corresponding debug flag.

Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Kristian Høgsberg <[email protected]>
Reviewed-by: Anuj Phogat <[email protected]>

2 files changed, 15 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i965/intel_debug.c b/src/mesa/drivers/dri/i965/intel_debug.c
index 013602c4abe..0cb7aef3231 100644
--- a/src/mesa/drivers/dri/i965/intel_debug.c
+++ b/src/mesa/drivers/dri/i965/intel_debug.c
@@ -72,6 +72,19 @@ static const struct dri_debug_control debug_control[] = {
    { NULL,    0 }
 };
 
+uint64_t
+intel_debug_flag_for_shader_stage(gl_shader_stage stage)
+{
+   int flags[] = {
+      [MESA_SHADER_VERTEX] = DEBUG_VS,
+      [MESA_SHADER_GEOMETRY] = DEBUG_GS,
+      [MESA_SHADER_FRAGMENT] = DEBUG_WM,
+      [MESA_SHADER_COMPUTE] = 0, /* no debug flag yet */
+   };
+   STATIC_ASSERT(MESA_SHADER_STAGES == 4);
+   return flags[stage];
+}
+
 void
 brw_process_intel_debug_variable(struct brw_context *brw)
 {
diff --git a/src/mesa/drivers/dri/i965/intel_debug.h b/src/mesa/drivers/dri/i965/intel_debug.h
index 01b4dcfd3fe..ed879aba8d3 100644
--- a/src/mesa/drivers/dri/i965/intel_debug.h
+++ b/src/mesa/drivers/dri/i965/intel_debug.h
@@ -110,6 +110,8 @@ extern uint64_t INTEL_DEBUG;
    }                                                            \
 } while (0)
 
+extern uint64_t intel_debug_flag_for_shader_stage(gl_shader_stage stage);
+
 struct brw_context;
 
 extern void brw_process_intel_debug_variable(struct brw_context *brw);