fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-09 06:48:06 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

mesa: Propagate gl_FragDepth layout from GLSL IR to Mesa IR

Browse source
This commit is contained in:
Chad Versace 2011-01-27 01:40:35 -08:00
parent addae33d6b
commit a1b83464ff
2 changed files with 41 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
src/mesa/main/mtypes.h
View file

@ -867,6 +867,23 @@ struct gl_fog_attrib
};
/**
* \brief Layout qualifiers for gl_FragDepth.
*
* Extension AMD_conservative_depth allows gl_FragDepth to be redeclared with
* a layout qualifier.
*
* \see enum ir_depth_layout
*/
enum gl_frag_depth_layout {
FRAG_DEPTH_LAYOUT_NONE, /**< No layout is specified. */
FRAG_DEPTH_LAYOUT_ANY,
FRAG_DEPTH_LAYOUT_GREATER,
FRAG_DEPTH_LAYOUT_LESS,
FRAG_DEPTH_LAYOUT_UNCHANGED
};
/**
* Hint attribute group (GL_HINT_BIT).
*
@ -1889,6 +1906,7 @@ struct gl_fragment_program
GLboolean UsesKill; /**< shader uses KIL instruction */
GLboolean OriginUpperLeft;
GLboolean PixelCenterInteger;
enum gl_frag_depth_layout FragDepthLayout;
};

23
src/mesa/program/ir_to_mesa.cpp
View file

@ -727,6 +727,29 @@ ir_to_mesa_visitor::visit(ir_variable *ir)
fp->OriginUpperLeft = ir->origin_upper_left;
fp->PixelCenterInteger = ir->pixel_center_integer;
} else if (strcmp(ir->name, "gl_FragDepth") == 0) {
struct gl_fragment_program *fp = (struct gl_fragment_program *)this->prog;
switch (ir->depth_layout) {
case ir_depth_layout_none:
fp->FragDepthLayout = FRAG_DEPTH_LAYOUT_NONE;
break;
case ir_depth_layout_any:
fp->FragDepthLayout = FRAG_DEPTH_LAYOUT_ANY;
break;
case ir_depth_layout_greater:
fp->FragDepthLayout = FRAG_DEPTH_LAYOUT_GREATER;
break;
case ir_depth_layout_less:
fp->FragDepthLayout = FRAG_DEPTH_LAYOUT_LESS;
break;
case ir_depth_layout_unchanged:
fp->FragDepthLayout = FRAG_DEPTH_LAYOUT_UNCHANGED;
break;
default:
assert(0);
break;
}
}
if (ir->mode == ir_var_uniform && strncmp(ir->name, "gl_", 3) == 0) {