3 files changed, 39 insertions, 8 deletions

diff --git a/src/mesa/main/arbprogram.c b/src/mesa/main/arbprogram.c
index f3a0a54c016..625dc667f80 100644
--- a/src/mesa/main/arbprogram.c
+++ b/src/mesa/main/arbprogram.c
@@ -41,6 +41,23 @@
 #include "program/program.h"
 #include "program/prog_print.h"
 
+static void
+flush_vertices_for_program_constants(struct gl_context *ctx, GLenum target)
+{
+   uint64_t new_driver_state;
+
+   if (target == GL_FRAGMENT_PROGRAM_ARB) {
+      new_driver_state =
+         ctx->DriverFlags.NewShaderConstants[MESA_SHADER_FRAGMENT];
+   } else {
+      new_driver_state =
+         ctx->DriverFlags.NewShaderConstants[MESA_SHADER_VERTEX];
+   }
+
+   FLUSH_VERTICES(ctx, new_driver_state ? 0 : _NEW_PROGRAM_CONSTANTS);
+   ctx->NewDriverState |= new_driver_state;
+}
+
 /**
  * Bind a program (make it current)
  * \note Called from the GL API dispatcher by both glBindProgramNV
@@ -105,7 +122,8 @@ _mesa_BindProgramARB(GLenum target, GLuint id)
    }
 
    /* signal new program (and its new constants) */
-   FLUSH_VERTICES(ctx, _NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS);
+   FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+   flush_vertices_for_program_constants(ctx, target);
 
    /* bind newProg */
    if (target == GL_VERTEX_PROGRAM_ARB) {
@@ -434,7 +452,7 @@ _mesa_ProgramEnvParameter4fARB(GLenum target, GLuint index,
 
    GET_CURRENT_CONTEXT(ctx);
 
-   FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
+   flush_vertices_for_program_constants(ctx, target);
 
    if (get_env_param_pointer(ctx, "glProgramEnvParameter",
 			     target, index, &param)) {
@@ -456,7 +474,7 @@ _mesa_ProgramEnvParameter4fvARB(GLenum target, GLuint index,
 
    GET_CURRENT_CONTEXT(ctx);
 
-   FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
+   flush_vertices_for_program_constants(ctx, target);
 
    if (get_env_param_pointer(ctx, "glProgramEnvParameter4fv",
 			      target, index, &param)) {
@@ -472,7 +490,7 @@ _mesa_ProgramEnvParameters4fvEXT(GLenum target, GLuint index, GLsizei count,
    GET_CURRENT_CONTEXT(ctx);
    GLfloat * dest;
 
-   FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
+   flush_vertices_for_program_constants(ctx, target);
 
    if (count <= 0) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glProgramEnvParameters4fv(count)");
@@ -539,7 +557,7 @@ _mesa_ProgramLocalParameter4fARB(GLenum target, GLuint index,
    GET_CURRENT_CONTEXT(ctx);
    GLfloat *param;
 
-   FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
+   flush_vertices_for_program_constants(ctx, target);
 
    if (get_local_param_pointer(ctx, "glProgramLocalParameterARB",
 			       target, index, &param)) {
@@ -565,7 +583,7 @@ _mesa_ProgramLocalParameters4fvEXT(GLenum target, GLuint index, GLsizei count,
    GET_CURRENT_CONTEXT(ctx);
    GLfloat *dest;
 
-   FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
+   flush_vertices_for_program_constants(ctx, target);
 
    if (count <= 0) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glProgramLocalParameters4fv(count)");
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index bc99da97f3e..0cb002469b2 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -4531,6 +4531,9 @@ struct gl_driver_flags
 
    /** gl_context::ViewportArray */
    uint64_t NewViewport;
+
+   /** Shader constants (uniforms, program parameters, state constants) */
+   uint64_t NewShaderConstants[MESA_SHADER_STAGES];
 };
 
 struct gl_uniform_buffer_binding
diff --git a/src/mesa/main/state.c b/src/mesa/main/state.c
index 2b4d8d46ea0..7aec98e5784 100644
--- a/src/mesa/main/state.c
+++ b/src/mesa/main/state.c
@@ -230,7 +230,12 @@ update_program_constants(struct gl_context *ctx)
       const struct gl_program_parameter_list *params =
          ctx->FragmentProgram._Current->Parameters;
       if (params && params->StateFlags & ctx->NewState) {
-         new_state |= _NEW_PROGRAM_CONSTANTS;
+         if (ctx->DriverFlags.NewShaderConstants[MESA_SHADER_FRAGMENT]) {
+            ctx->NewDriverState |=
+               ctx->DriverFlags.NewShaderConstants[MESA_SHADER_FRAGMENT];
+         } else {
+            new_state |= _NEW_PROGRAM_CONSTANTS;
+         }
       }
    }
 
@@ -242,7 +247,12 @@ update_program_constants(struct gl_context *ctx)
       const struct gl_program_parameter_list *params =
          ctx->VertexProgram._Current->Parameters;
       if (params && params->StateFlags & ctx->NewState) {
-         new_state |= _NEW_PROGRAM_CONSTANTS;
+         if (ctx->DriverFlags.NewShaderConstants[MESA_SHADER_VERTEX]) {
+            ctx->NewDriverState |=
+               ctx->DriverFlags.NewShaderConstants[MESA_SHADER_VERTEX];
+         } else {
+            new_state |= _NEW_PROGRAM_CONSTANTS;
+         }
       }
    }