Mesa (master): main/get: support ARB_gpu_shader5

[Jordan Justen]

Module: Mesa
Branch: master
Commit: 020c43f401e671e80ac90182415cbbed1575dde4
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=020c43f401e671e80ac90182415cbbed1575dde4

Author: Jordan Justen <jordan.l.justen at intel.com>
Date:   Sat Jan 25 10:55:22 2014 -0800

main/get: support ARB_gpu_shader5

If a driver enables ARB_gpu_shader5 and sets Const.MaxVertexSteams >= 4,
then piglit's arb_gpu_shader5-minmax test should now pass.

Signed-off-by: Jordan Justen <jordan.l.justen at intel.com>
Reviewed-by: Matt Turner <mattst88 at gmail.com>

---

 src/mesa/main/config.h           |    9 +++++++++
 src/mesa/main/context.c          |    4 ++++
 src/mesa/main/get.c              |    2 ++
 src/mesa/main/get_hash_params.py |    8 +++++++-
 src/mesa/main/mtypes.h           |    4 ++++
 5 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/src/mesa/main/config.h b/src/mesa/main/config.h
index 0c1782a..30da5d4 100644
--- a/src/mesa/main/config.h
+++ b/src/mesa/main/config.h
@@ -272,6 +272,15 @@
 #define MAX_DEBUG_GROUP_STACK_DEPTH 64
 /*@}*/
 
+/** For GL_ARB_gpu_shader5 */
+/*@{*/
+#define MAX_GEOMETRY_SHADER_INVOCATIONS     32
+#define MIN_FRAGMENT_INTERPOLATION_OFFSET   -0.5
+#define MAX_FRAGMENT_INTERPOLATION_OFFSET   0.5
+#define FRAGMENT_INTERPOLATION_OFFSET_BITS  4
+#define MAX_VERTEX_STREAMS                  4
+/*@}*/
+
 /*
  * Color channel component order
  * 
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index f2f9bb3..458d8e5 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -709,6 +709,10 @@ _mesa_init_constants(struct gl_context *ctx)
    ctx->Const.MaxComputeWorkGroupSize[1] = 1024;
    ctx->Const.MaxComputeWorkGroupSize[2] = 64;
    ctx->Const.MaxComputeWorkGroupInvocations = 1024;
+
+   /** GL_ARB_gpu_shader5 */
+   ctx->Const.MinFragmentInterpolationOffset = MIN_FRAGMENT_INTERPOLATION_OFFSET;
+   ctx->Const.MaxFragmentInterpolationOffset = MAX_FRAGMENT_INTERPOLATION_OFFSET;
 }
 
 
diff --git a/src/mesa/main/get.c b/src/mesa/main/get.c
index 32aa736..54f7d77 100644
--- a/src/mesa/main/get.c
+++ b/src/mesa/main/get.c
@@ -391,6 +391,8 @@ EXTRA_EXT(ARB_draw_indirect);
 EXTRA_EXT(ARB_shader_image_load_store);
 EXTRA_EXT(ARB_viewport_array);
 EXTRA_EXT(ARB_compute_shader);
+EXTRA_EXT(ARB_gpu_shader5);
+EXTRA_EXT2(ARB_transform_feedback3, ARB_gpu_shader5);
 
 static const int
 extra_ARB_color_buffer_float_or_glcore[] = {
diff --git a/src/mesa/main/get_hash_params.py b/src/mesa/main/get_hash_params.py
index 2e8a116..f47cbd8 100644
--- a/src/mesa/main/get_hash_params.py
+++ b/src/mesa/main/get_hash_params.py
@@ -643,7 +643,7 @@ descriptor=[
 
 # GL_ARB_transform_feedback3
   [ "MAX_TRANSFORM_FEEDBACK_BUFFERS", "CONTEXT_INT(Const.MaxTransformFeedbackBuffers), extra_ARB_transform_feedback3" ],
-  [ "MAX_VERTEX_STREAMS", "CONTEXT_INT(Const.MaxVertexStreams), extra_ARB_transform_feedback3" ],
+  [ "MAX_VERTEX_STREAMS", "CONTEXT_INT(Const.MaxVertexStreams), extra_ARB_transform_feedback3_ARB_gpu_shader5" ],
 
 # GL_ARB_geometry_shader4
   [ "MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_ARB", "CONTEXT_INT(Const.Program[MESA_SHADER_GEOMETRY].MaxTextureImageUnits), extra_gl32_ARB_geometry_shader4" ],
@@ -754,6 +754,12 @@ descriptor=[
 
 # GL_ARB_compute_shader
   [ "MAX_COMPUTE_WORK_GROUP_INVOCATIONS", "CONTEXT_INT(Const.MaxComputeWorkGroupInvocations), extra_ARB_compute_shader" ],
+
+# GL_ARB_gpu_shader5
+  [ "MAX_GEOMETRY_SHADER_INVOCATIONS", "CONST(MAX_GEOMETRY_SHADER_INVOCATIONS), extra_ARB_gpu_shader5" ],
+  [ "MIN_FRAGMENT_INTERPOLATION_OFFSET", "CONTEXT_FLOAT(Const.MinFragmentInterpolationOffset), extra_ARB_gpu_shader5" ],
+  [ "MAX_FRAGMENT_INTERPOLATION_OFFSET", "CONTEXT_FLOAT(Const.MaxFragmentInterpolationOffset), extra_ARB_gpu_shader5" ],
+  [ "FRAGMENT_INTERPOLATION_OFFSET_BITS", "CONST(FRAGMENT_INTERPOLATION_OFFSET_BITS), extra_ARB_gpu_shader5" ],
 ]},
 
 # Enums restricted to OpenGL Core profile
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 8d81aa1..ceabd9d 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -3411,6 +3411,10 @@ struct gl_constants
    GLuint MaxComputeWorkGroupCount[3]; /* Array of x, y, z dimensions */
    GLuint MaxComputeWorkGroupSize[3]; /* Array of x, y, z dimensions */
    GLuint MaxComputeWorkGroupInvocations;
+
+   /** GL_ARB_gpu_shader5 */
+   GLfloat MinFragmentInterpolationOffset;
+   GLfloat MaxFragmentInterpolationOffset;
 };