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i965: Use native RGB_FLOAT16 support when available.

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Previously we would expand it to RGBA_FLOAT16.  This format now comes out
as framebuffer incomplete, but it seems worth the memory savings if that's
what people are asking for (and GL3 does list it under "texture-only"
color formats)

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Eric Anholt
2013-04-16 17:21:22 -07:00
committed by Kenneth Graunke
parent 645b610b62
commit 9db9bc3aa1
1 changed files with 1 additions and 1 deletions
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src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+1 -1
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@@ -434,7 +434,7 @@ brw_format_for_mesa_format(gl_format mesa_format)
[MESA_FORMAT_RGBA_FLOAT32] = BRW_SURFACEFORMAT_R32G32B32A32_FLOAT,
[MESA_FORMAT_RGBA_FLOAT16] = BRW_SURFACEFORMAT_R16G16B16A16_FLOAT,
[MESA_FORMAT_RGB_FLOAT32] = BRW_SURFACEFORMAT_R32G32B32_FLOAT,
[MESA_FORMAT_RGB_FLOAT16] = 0,
[MESA_FORMAT_RGB_FLOAT16] = BRW_SURFACEFORMAT_R16G16B16_FLOAT,
[MESA_FORMAT_ALPHA_FLOAT32] = BRW_SURFACEFORMAT_A32_FLOAT,
[MESA_FORMAT_ALPHA_FLOAT16] = BRW_SURFACEFORMAT_A16_FLOAT,
[MESA_FORMAT_LUMINANCE_FLOAT32] = BRW_SURFACEFORMAT_L32_FLOAT,