Merge remote-tracking branch 'origin/released'

Conflicts:
	mesalib/src/mesa/main/mtypes.h
	mesalib/src/mesa/main/shaderapi.c
	mesalib/src/mesa/program/ir_to_mesa.cpp
	mesalib/src/mesa/program/prog_optimize.c
	mesalib/src/mesa/state_tracker/st_cb_blit.c
	xorg-server/xkeyboard-config/rules/base.o_s.part
	xorg-server/xkeyboard-config/rules/base.xml.in

1 files changed, 25 insertions, 12 deletions

diff --git a/mesalib/src/mesa/program/ir_to_mesa.cpp b/mesalib/src/mesa/program/ir_to_mesa.cpp
index 326d1fb63..ae0df472d 100644
--- a/mesalib/src/mesa/program/ir_to_mesa.cpp
+++ b/mesalib/src/mesa/program/ir_to_mesa.cpp
@@ -641,8 +641,6 @@ src_reg
 ir_to_mesa_visitor::get_temp(const glsl_type *type)

 {

    src_reg src;

-   int swizzle[4];

-   int i;

 

    src.file = PROGRAM_TEMPORARY;

    src.index = next_temp;

@@ -652,12 +650,7 @@ ir_to_mesa_visitor::get_temp(const glsl_type *type)
    if (type->is_array() || type->is_record()) {

       src.swizzle = SWIZZLE_NOOP;

    } else {

-      for (i = 0; i < type->vector_elements; i++)

-	 swizzle[i] = i;

-      for (; i < 4; i++)

-	 swizzle[i] = type->vector_elements - 1;

-      src.swizzle = MAKE_SWIZZLE4(swizzle[0], swizzle[1],

-				  swizzle[2], swizzle[3]);

+      src.swizzle = swizzle_for_size(type->vector_elements);

    }

    src.negate = 0;

 

@@ -915,10 +908,30 @@ ir_to_mesa_visitor::try_emit_sat(ir_expression *ir)
    sat_src->accept(this);

    src_reg src = this->result;

 

-   this->result = get_temp(ir->type);

-   ir_to_mesa_instruction *inst;

-   inst = emit(ir, OPCODE_MOV, dst_reg(this->result), src);

-   inst->saturate = true;

+   /* If we generated an expression instruction into a temporary in

+    * processing the saturate's operand, apply the saturate to that

+    * instruction.  Otherwise, generate a MOV to do the saturate.

+    *

+    * Note that we have to be careful to only do this optimization if

+    * the instruction in question was what generated src->result.  For

+    * example, ir_dereference_array might generate a MUL instruction

+    * to create the reladdr, and return us a src reg using that

+    * reladdr.  That MUL result is not the value we're trying to

+    * saturate.

+    */

+   ir_expression *sat_src_expr = sat_src->as_expression();

+   ir_to_mesa_instruction *new_inst;

+   new_inst = (ir_to_mesa_instruction *)this->instructions.get_tail();

+   if (sat_src_expr && (sat_src_expr->operation == ir_binop_mul ||

+			sat_src_expr->operation == ir_binop_add ||

+			sat_src_expr->operation == ir_binop_dot)) {

+      new_inst->saturate = true;

+   } else {

+      this->result = get_temp(ir->type);

+      ir_to_mesa_instruction *inst;

+      inst = emit(ir, OPCODE_MOV, dst_reg(this->result), src);

+      inst->saturate = true;

+   }

 

    return true;

 }