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anv/cmd_buffer: Clarify HZ rectangle behavior

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This behavior differs from what's described in the PRMs and was
observed by analyzing CTS test results.

Signed-off-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Nanley Chery 2016-09-30 10:28:18 -07:00
parent 63318d34ac
commit 6ff4c24fdd
1 changed files with 2 additions and 1 deletions
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3
src/intel/vulkan/gen8_cmd_buffer.c
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@ -481,9 +481,10 @@ genX(cmd_buffer_emit_hz_op)(struct anv_cmd_buffer *cmd_buffer,
hzp.ClearRectangleXMax = align_u32(iview->extent.width, 8);
hzp.ClearRectangleYMax = align_u32(iview->extent.height, 4);
} else {
/* This clear rectangle is aligned */
/* Contrary to the HW docs both fields are inclusive */
hzp.ClearRectangleXMin = cmd_state->render_area.offset.x;
hzp.ClearRectangleYMin = cmd_state->render_area.offset.y;
/* Contrary to the HW docs both fields are exclusive */
hzp.ClearRectangleXMax = cmd_state->render_area.offset.x +
align_u32(cmd_state->render_area.extent.width, px_dim.width);
hzp.ClearRectangleYMax = cmd_state->render_area.offset.y +