This requires the arb_half_float_vertex Mesa branch, plus some unreleased
gallium support work by Dave Airlie.
You may need to fix an assertion in st_pipe_vertex_format too.
---
src/gallium/drivers/nv40/nv40_vbo.c | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/src/gallium/drivers/nv40/nv40_vbo.c
b/src/gallium/drivers/nv40/nv40_vbo.c
index e85d6b4..211f3bd 100644
--- a/src/gallium/drivers/nv40/nv40_vbo.c
+++ b/src/gallium/drivers/nv40/nv40_vbo.c
@@ -11,6 +11,10 @@
#define FORCE_SWTNL 0
+#ifndef NV40TCL_VTXFMT_TYPE_HALF
+#define NV40TCL_VTXFMT_TYPE_HALF 3
+#endif
+
static INLINE int
nv40_vbo_format_to_hw(enum pipe_format pipe, unsigned *fmt, unsigned *ncomp)
{
@@ -21,6 +25,12 @@ nv40_vbo_format_to_hw(enum pipe_format pipe, unsigned *fmt,
unsigned *ncomp)
case PIPE_FORMAT_R32G32B32A32_FLOAT:
*fmt = NV40TCL_VTXFMT_TYPE_FLOAT;
break;
+ case PIPE_FORMAT_R16X16_FLOAT:
+ case PIPE_FORMAT_R16G16_FLOAT:
+ case PIPE_FORMAT_R16G16B16X16_FLOAT:
+ case PIPE_FORMAT_R16G16B16A16_FLOAT:
+ *fmt = NV40TCL_VTXFMT_TYPE_HALF;
+ break;
case PIPE_FORMAT_R8_UNORM:
case PIPE_FORMAT_R8G8_UNORM:
case PIPE_FORMAT_R8G8B8_UNORM:
@@ -41,21 +51,25 @@ nv40_vbo_format_to_hw(enum pipe_format pipe, unsigned *fmt,
unsigned *ncomp)
switch (pipe) {
case PIPE_FORMAT_R8_UNORM:
case PIPE_FORMAT_R32_FLOAT:
+ case PIPE_FORMAT_R16X16_FLOAT:
case PIPE_FORMAT_R16_SSCALED:
*ncomp = 1;
break;
case PIPE_FORMAT_R8G8_UNORM:
case PIPE_FORMAT_R32G32_FLOAT:
+ case PIPE_FORMAT_R16G16_FLOAT:
case PIPE_FORMAT_R16G16_SSCALED:
*ncomp = 2;
break;
case PIPE_FORMAT_R8G8B8_UNORM:
case PIPE_FORMAT_R32G32B32_FLOAT:
+ case PIPE_FORMAT_R16G16B16X16_FLOAT:
case PIPE_FORMAT_R16G16B16_SSCALED:
*ncomp = 3;
break;
case PIPE_FORMAT_R8G8B8A8_UNORM:
case PIPE_FORMAT_R32G32B32A32_FLOAT:
+ case PIPE_FORMAT_R16G16B16A16_FLOAT:
case PIPE_FORMAT_R16G16B16A16_SSCALED:
*ncomp = 4;
break;
--
1.6.3.3
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