mesa: add const flags to skip MaxVarying and MaxUniform linker checks (v2)

This is only temporary until a better solution is available.

v2: print warnings and add gallium CAPs

Reviewed-by: Ian Romanick <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>

2 files changed, 15 insertions, 0 deletions

diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 1e06cd55c6b..19343497689 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2830,6 +2830,15 @@ struct gl_constants
     * Texture borders are deprecated in GL 3.0.
     **/
    GLboolean StripTextureBorder;
+
+   /**
+    * For drivers which can do a better job at eliminating unused varyings
+    * and uniforms than the GLSL compiler.
+    *
+    * XXX Remove these as soon as a better solution is available.
+    */
+   GLboolean GLSLSkipStrictMaxVaryingLimitCheck;
+   GLboolean GLSLSkipStrictMaxUniformLimitCheck;
 };
 
 
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 9e39729e9d4..457d5d62a8e 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -222,6 +222,12 @@ void st_init_limits(struct st_context *st)
    c->UniformBooleanTrue = ~0;
 
    c->StripTextureBorder = GL_TRUE;
+
+   c->GLSLSkipStrictMaxUniformLimitCheck =
+      screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS);
+
+   c->GLSLSkipStrictMaxVaryingLimitCheck =
+      screen->get_param(screen, PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS);
 }