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freedreno/a2xx: implement polygon offset

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Fixes failures in the following deqp tests:
dEQP-GLES2.functional.polygon_offset.*

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Jonathan Marek 2019-09-05 17:21:54 -04:00
parent ac4ca24c32
commit 88ca73bcd0
2 changed files with 14 additions and 0 deletions
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2
src/freedreno/registers/a2xx.xml
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@ -1387,6 +1387,8 @@ xsi:schemaLocation="http://nouveau.freedesktop.org/ rules-ng.xsd">
<reg32 offset="0x2357" name="A225_GRAS_UCP5W"/>
<reg32 offset="0x2360" name="A225_GRAS_UCP_ENABLED"/>
<reg32 offset="0x2380" name="PA_SU_POLY_OFFSET_FRONT_SCALE"/>
<reg32 offset="0x2381" name="PA_SU_POLY_OFFSET_FRONT_OFFSET"/>
<reg32 offset="0x2382" name="PA_SU_POLY_OFFSET_BACK_SCALE"/>
<reg32 offset="0x2383" name="PA_SU_POLY_OFFSET_BACK_OFFSET"/>
<reg32 offset="0x4000" name="SQ_CONSTANT_0"/>
<reg32 offset="0x4800" name="SQ_FETCH_0"/>

12
src/gallium/drivers/freedreno/a2xx/fd2_emit.c
View file

@ -301,6 +301,18 @@ fd2_emit_state(struct fd_context *ctx, const enum fd_dirty_3d_state dirty)
OUT_RING(ring, fui(1.0)); /* PA_CL_GB_VERT_DISC_ADJ */
OUT_RING(ring, fui(1.0)); /* PA_CL_GB_HORZ_CLIP_ADJ */
OUT_RING(ring, fui(1.0)); /* PA_CL_GB_HORZ_DISC_ADJ */
if (rasterizer->base.offset_tri) {
/* TODO: why multiply scale by 2 ? without it deqp test fails
* deqp/piglit tests aren't very precise
*/
OUT_PKT3(ring, CP_SET_CONSTANT, 5);
OUT_RING(ring, CP_REG(REG_A2XX_PA_SU_POLY_OFFSET_FRONT_SCALE));
OUT_RING(ring, fui(rasterizer->base.offset_scale * 2.0f)); /* FRONT_SCALE */
OUT_RING(ring, fui(rasterizer->base.offset_units)); /* FRONT_OFFSET */
OUT_RING(ring, fui(rasterizer->base.offset_scale * 2.0f)); /* BACK_SCALE */
OUT_RING(ring, fui(rasterizer->base.offset_units)); /* BACK_OFFSET */
}
}
/* NOTE: scissor enabled bit is part of rasterizer state: */