From: Ilia Mirkin <imirkin@alum.mit.edu>
Date: Thu, 19 Nov 2015 05:32:39 +0000 (-0500)
Subject: freedreno/a4xx: add depth clamp and halfz clip
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a05e5491c367cdb7db93a2cc47a839329b90e513;p=mesa.git

freedreno/a4xx: add depth clamp and halfz clip

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
---

diff --git a/src/gallium/drivers/freedreno/a4xx/a4xx.xml.h b/src/gallium/drivers/freedreno/a4xx/a4xx.xml.h
index ec002f67980..ef4f53fa7e5 100644
--- a/src/gallium/drivers/freedreno/a4xx/a4xx.xml.h
+++ b/src/gallium/drivers/freedreno/a4xx/a4xx.xml.h
@@ -2059,6 +2059,8 @@ static inline uint32_t A4XX_TPL1_TP_TEX_COUNT_GS(uint32_t val)
 #define REG_A4XX_GRAS_PERFCTR_TSE_SEL_3				0x00000c8b
 
 #define REG_A4XX_GRAS_CL_CLIP_CNTL				0x00002000
+#define A4XX_GRAS_CL_CLIP_CNTL_CLIP_DISABLE			0x00008000
+#define A4XX_GRAS_CL_CLIP_CNTL_ZERO_GB_SCALE_Z			0x00400000
 
 #define REG_A4XX_GRAS_CLEAR_CNTL				0x00002003
 #define A4XX_GRAS_CLEAR_CNTL_NOT_FASTCLEAR			0x00000001
diff --git a/src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.c b/src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.c
index dc7e98b149d..d894b6b9e09 100644
--- a/src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.c
+++ b/src/gallium/drivers/freedreno/a4xx/fd4_rasterizer.c
@@ -90,5 +90,10 @@ fd4_rasterizer_state_create(struct pipe_context *pctx,
 	if (cso->offset_tri)
 		so->gras_su_mode_control |= A4XX_GRAS_SU_MODE_CONTROL_POLY_OFFSET;
 
+	if (!cso->depth_clip)
+		so->gras_cl_clip_cntl |= A4XX_GRAS_CL_CLIP_CNTL_CLIP_DISABLE;
+	if (cso->clip_halfz)
+		so->gras_cl_clip_cntl |= A4XX_GRAS_CL_CLIP_CNTL_ZERO_GB_SCALE_Z;
+
 	return so;
 }
diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c b/src/gallium/drivers/freedreno/freedreno_screen.c
index 8ab78d8187c..adb0982132d 100644
--- a/src/gallium/drivers/freedreno/freedreno_screen.c
+++ b/src/gallium/drivers/freedreno/freedreno_screen.c
@@ -179,6 +179,8 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 	case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 	case PIPE_CAP_FAKE_SW_MSAA:
 	case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
+	case PIPE_CAP_DEPTH_CLIP_DISABLE:
+	case PIPE_CAP_CLIP_HALFZ:
 		return is_a3xx(screen) || is_a4xx(screen);
 
 	case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
@@ -192,10 +194,6 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 		if (is_a4xx(screen)) return 16383;
 		return 0;
 
-	case PIPE_CAP_DEPTH_CLIP_DISABLE:
-	case PIPE_CAP_CLIP_HALFZ:
-		return is_a3xx(screen);
-
 	case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 	case PIPE_CAP_CUBE_MAP_ARRAY:
 		return is_a4xx(screen);