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mesa: Introduce a compiler enum for tessellation spacing.

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It feels weird using GL_* enums in a Vulkan driver.

v2: Fix the TESS_SPACING -> PIPE_TESS_SPACING conversion.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Kenneth Graunke
2016-09-24 17:59:55 -07:00
parent 9bb89175e6
commit a4fd84ef5f
11 changed files with 54 additions and 47 deletions
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23
src/mesa/state_tracker/st_program.c
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@@ -1607,21 +1607,14 @@ st_translate_tesseval_program(struct st_context *st,
ureg_property(ureg, TGSI_PROPERTY_TES_PRIM_MODE,
sttep->Base.info.tes.primitive_mode);
switch (sttep->Base.info.tes.spacing) {
case GL_EQUAL:
ureg_property(ureg, TGSI_PROPERTY_TES_SPACING, PIPE_TESS_SPACING_EQUAL);
break;
case GL_FRACTIONAL_EVEN:
ureg_property(ureg, TGSI_PROPERTY_TES_SPACING,
PIPE_TESS_SPACING_FRACTIONAL_EVEN);
break;
case GL_FRACTIONAL_ODD:
ureg_property(ureg, TGSI_PROPERTY_TES_SPACING,
PIPE_TESS_SPACING_FRACTIONAL_ODD);
break;
default:
assert(0);
}
STATIC_ASSERT((TESS_SPACING_EQUAL + 1) % 3 == PIPE_TESS_SPACING_EQUAL);
STATIC_ASSERT((TESS_SPACING_FRACTIONAL_ODD + 1) % 3 ==
PIPE_TESS_SPACING_FRACTIONAL_ODD);
STATIC_ASSERT((TESS_SPACING_FRACTIONAL_EVEN + 1) % 3 ==
PIPE_TESS_SPACING_FRACTIONAL_EVEN);
ureg_property(ureg, TGSI_PROPERTY_TES_SPACING,
(sttep->Base.info.tes.spacing + 1) % 3);
ureg_property(ureg, TGSI_PROPERTY_TES_VERTEX_ORDER_CW,
!sttep->Base.info.tes.ccw);