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lima: reset scissor state if scissor test is disabled 

The PLBU seems to preserve scissor state between draws, and since lima doesn't
emit PLBU_CMD_SCISSORS() if scissor test is disabled, it uses state from previous draw.

Fix it by emitting PLBU_CMD_SCISSORS() for full fb if scissor test is disabled.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Reviewed-by: Vasily Khoruzhick <anarsoul@gmail.com>
Reviewed-by: Qiang Yu <yuq825@gmail.com>
This commit is contained in:
Icenowy Zheng 2019-09-17 00:07:40 +08:00 committed by Vasily Khoruzhick
parent 533987b5f4
commit d61b67b41d
1 changed files with 4 additions and 0 deletions
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4
src/gallium/drivers/lima/lima_draw.c
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@ -848,6 +848,8 @@ lima_pack_vs_cmd(struct lima_context *ctx, const struct pipe_draw_info *info)
static void
lima_pack_plbu_cmd(struct lima_context *ctx, const struct pipe_draw_info *info)
{
struct lima_context_framebuffer *fb = &ctx->framebuffer;
lima_pack_head_plbu_cmd(ctx);
/* If it's zero scissor, we skip adding all other commands */
@ -890,6 +892,8 @@ lima_pack_plbu_cmd(struct lima_context *ctx, const struct pipe_draw_info *info)
if (ctx->rasterizer->base.scissor) {
struct pipe_scissor_state *scissor = &ctx->scissor;
PLBU_CMD_SCISSORS(scissor->minx, scissor->maxx, scissor->miny, scissor->maxy);
} else {
PLBU_CMD_SCISSORS(0, fb->base.width, 0, fb->base.height);
}
PLBU_CMD_UNKNOWN1();