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mesa: set up gl_vert_result and gl_frag_attrib values for gl_ClipDistance.

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This patch assigns enumerated values for gl_ClipDistance in the
gl_vert_result and gl_frag_attrib enums, so that driver back-ends can
assign gl_ClipDistance to the appropriate hardware registers.  It also
adjusts the functions _mesa_vert_result_to_frag_attrib() and
_mesa_frag_attrib_to_vert_result() (which translate between the two
enums) to correctly translate the new enumerated values.

Reviewed-by: Eric Anholt <eric@anholt.net>
Tested-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Paul Berry
2011-08-19 13:12:23 -07:00
parent 1ad54ae0b1
commit 3d7c5a4f6f
2 changed files with 14 additions and 10 deletions
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src/glsl/ir_variable.cpp
+4 -4
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@@ -621,9 +621,9 @@ generate_130_vs_variables(exec_list *instructions,
const glsl_type *const clip_distance_array_type =
glsl_type::get_array_instance(glsl_type::float_type, 0);
/* FINISHME: gl_ClipDistance needs a real location assigned. */
add_variable(instructions, state->symbols,
"gl_ClipDistance", clip_distance_array_type, ir_var_out, -1);
"gl_ClipDistance", clip_distance_array_type, ir_var_out,
VERT_RESULT_CLIP_DIST0);
}
@@ -841,9 +841,9 @@ generate_130_fs_variables(exec_list *instructions,
const glsl_type *const clip_distance_array_type =
glsl_type::get_array_instance(glsl_type::float_type, 0);
/* FINISHME: gl_ClipDistance needs a real location assigned. */
add_variable(instructions, state->symbols,
"gl_ClipDistance", clip_distance_array_type, ir_var_in, -1);
"gl_ClipDistance", clip_distance_array_type, ir_var_in,
FRAG_ATTRIB_CLIP_DIST0);
}
static void