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v3dv: add a note on interactions between clearing and scissor

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6766>
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Iago Toral Quiroga 2020-01-09 10:53:36 +01:00 • committed by Marge Bot
parent 9f3fd1a3ca
commit 6379a552a7
1 changed files with 6 additions and 0 deletions
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6
src/broadcom/vulkan/v3dv_cmd_buffer.c
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@ -820,6 +820,12 @@ emit_rcl(struct v3dv_cmd_buffer *cmd_buffer)
}
}
/* FIXME: the tile buffer clears don't seem to honor the scissor rect
* so if the current combination of scissor + renderArea doesn't cover
* the full extent of the render target we won't get correct behavior.
* We probably need to detect these cases, implement the clearing by
* drawing a rect and skip clearing here.
*/
cl_emit(rcl, TILE_RENDERING_MODE_CFG_CLEAR_COLORS_PART1, clear) {
clear.clear_color_low_32_bits = clear_color[0];
clear.clear_color_next_24_bits = clear_color[1] & 0xffffff;