mesa: add double uniform support. (v5)

This adds support for the new uniform interfaces
from ARB_gpu_shader_fp64.

v2:
support ARB_separate_shader_objects ProgramUniform*d* (Ian)
don't allow boolean uniforms to be updated (issue 15) (Ian)

v3: fix size_mul
v4: Teach uniform update to take into account double precision (Topi)
v5: add transpose for double case (Ilia)

Signed-off-by: Dave Airlie <[email protected]>
Reviewed-by: Ilia Mirkin <[email protected]>

1 files changed, 24 insertions, 2 deletions

diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp
index 725e51d63c3..f2365206ac5 100644
--- a/src/mesa/program/ir_to_mesa.cpp
+++ b/src/mesa/program/ir_to_mesa.cpp
@@ -606,6 +606,20 @@ type_size(const struct glsl_type *type)
 	  */
 	 return 1;
       }
+      break;
+   case GLSL_TYPE_DOUBLE:
+      if (type->is_matrix()) {
+         if (type->vector_elements > 2)
+            return type->matrix_columns * 2;
+         else
+            return type->matrix_columns;
+      } else {
+         if (type->vector_elements > 2)
+            return 2;
+         else
+            return 1;
+      }
+      break;
    case GLSL_TYPE_ARRAY:
       assert(type->length > 0);
       return type_size(type->fields.array) * type->length;
@@ -2385,6 +2399,8 @@ add_uniform_to_shader::visit_field(const glsl_type *type, const char *name,
 
    if (type->is_vector() || type->is_scalar()) {
       size = type->vector_elements;
+      if (type->is_double())
+         size *= 2;
    } else {
       size = type_size(type) * 4;
    }
@@ -2489,6 +2505,7 @@ _mesa_associate_uniform_storage(struct gl_context *ctx,
 	 enum gl_uniform_driver_format format = uniform_native;
 
 	 unsigned columns = 0;
+	 int dmul = 4 * sizeof(float);
 	 switch (storage->type->base_type) {
 	 case GLSL_TYPE_UINT:
 	    assert(ctx->Const.NativeIntegers);
@@ -2500,6 +2517,11 @@ _mesa_associate_uniform_storage(struct gl_context *ctx,
 	       (ctx->Const.NativeIntegers) ? uniform_native : uniform_int_float;
 	    columns = 1;
 	    break;
+
+	 case GLSL_TYPE_DOUBLE:
+	    if (storage->type->vector_elements > 2)
+               dmul *= 2;
+	    /* fallthrough */
 	 case GLSL_TYPE_FLOAT:
 	    format = uniform_native;
 	    columns = storage->type->matrix_columns;
@@ -2524,8 +2546,8 @@ _mesa_associate_uniform_storage(struct gl_context *ctx,
 	 }
 
 	 _mesa_uniform_attach_driver_storage(storage,
-					     4 * sizeof(float) * columns,
-					     4 * sizeof(float),
+					     dmul * columns,
+					     dmul,
 					     format,
 					     &params->ParameterValues[i]);