Mesa (master): i965: Add a function to translate MESA_SHADER_* into DEBUG_* enums.

[Kenneth Graunke]

Module: Mesa
Branch: master
Commit: 7c891e8ddd41a77ccdc804ce938f2a1ed46e97e8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=7c891e8ddd41a77ccdc804ce938f2a1ed46e97e8

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Wed Feb 18 17:31:29 2015 -0800

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 <kenneth at whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand at intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>
Reviewed-by: Kristian Høgsberg <krh at bitplanet.net>
Reviewed-by: Anuj Phogat <anuj.phogat at gmail.com>

---

 src/mesa/drivers/dri/i965/intel_debug.c |   13 +++++++++++++
 src/mesa/drivers/dri/i965/intel_debug.h |    2 ++
 2 files changed, 15 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/intel_debug.c b/src/mesa/drivers/dri/i965/intel_debug.c
index 013602c..0cb7aef 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 01b4dcf..ed879ab 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);