linux-kernel - [PATCH 4/6] drm/msm/mdp: mark if a MDP format is YUV at definition

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Date:	Mon,  6 Jul 2015 16:35:29 -0400
From:	Stephane Viau <sviau@...eaurora.org>
To:	dri-devel@...ts.freedesktop.org
Cc:	linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
	robdclark@...il.com, Wentao Xu <wentaox@...eaurora.org>,
	Stephane Viau <sviau@...eaurora.org>
Subject: [PATCH 4/6] drm/msm/mdp: mark if a MDP format is YUV at definition

From: Wentao Xu <wentaox@...eaurora.org>

This makes it easy to determine if a format is YUV. The old
method of using chroma sample type incorrectly marks YUV444 as
RGB format.

Signed-off-by: Wentao Xu <wentaox@...eaurora.org>
[rebase]
Signed-off-by: Stephane Viau <sviau@...eaurora.org>

Change-Id: I3e1fa4473be8421fac8d79100f30bff5823be5f4
---
 drivers/gpu/drm/msm/mdp/mdp_format.c | 27 ++++++++++++++-------------
 drivers/gpu/drm/msm/mdp/mdp_kms.h    |  3 ++-
 2 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/msm/mdp/mdp_format.c b/drivers/gpu/drm/msm/mdp/mdp_format.c
index 7b0524d..fd803c5 100644
--- a/drivers/gpu/drm/msm/mdp/mdp_format.c
+++ b/drivers/gpu/drm/msm/mdp/mdp_format.c
@@ -71,7 +71,7 @@ static struct csc_cfg csc_convert[CSC_MAX] = {
 	},
 };
 
-#define FMT(name, a, r, g, b, e0, e1, e2, e3, alpha, tight, c, cnt, fp, cs) { \
+#define FMT(name, a, r, g, b, e0, e1, e2, e3, alpha, tight, c, cnt, fp, cs, yuv) { \
 		.base = { .pixel_format = DRM_FORMAT_ ## name }, \
 		.bpc_a = BPC ## a ## A,                          \
 		.bpc_r = BPC ## r,                               \
@@ -83,7 +83,8 @@ static struct csc_cfg csc_convert[CSC_MAX] = {
 		.cpp = c,                                        \
 		.unpack_count = cnt,                             \
 		.fetch_type = fp,                                \
-		.chroma_sample = cs                              \
+		.chroma_sample = cs,                             \
+		.is_yuv = yuv,                                   \
 }
 
 #define BPC0A 0
@@ -95,30 +96,30 @@ static struct csc_cfg csc_convert[CSC_MAX] = {
 static const struct mdp_format formats[] = {
 	/*  name      a  r  g  b   e0 e1 e2 e3  alpha   tight  cpp cnt ... */
 	FMT(ARGB8888, 8, 8, 8, 8,  1, 0, 2, 3,  true,   true,  4,  4,
-			MDP_PLANE_INTERLEAVED, CHROMA_RGB),
+			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
 	FMT(ABGR8888, 8, 8, 8, 8,  2, 0, 1, 3,  true,   true,  4,  4,
-			MDP_PLANE_INTERLEAVED, CHROMA_RGB),
+			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
 	FMT(RGBA8888, 8, 8, 8, 8,  3, 1, 0, 2,  true,   true,  4,  4,
-			MDP_PLANE_INTERLEAVED, CHROMA_RGB),
+			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
 	FMT(BGRA8888, 8, 8, 8, 8,  3, 2, 0, 1,  true,   true,  4,  4,
-			MDP_PLANE_INTERLEAVED, CHROMA_RGB),
+			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
 	FMT(XRGB8888, 8, 8, 8, 8,  1, 0, 2, 3,  false,  true,  4,  4,
-			MDP_PLANE_INTERLEAVED, CHROMA_RGB),
+			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
 	FMT(RGB888,   0, 8, 8, 8,  1, 0, 2, 0,  false,  true,  3,  3,
-			MDP_PLANE_INTERLEAVED, CHROMA_RGB),
+			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
 	FMT(BGR888,   0, 8, 8, 8,  2, 0, 1, 0,  false,  true,  3,  3,
-			MDP_PLANE_INTERLEAVED, CHROMA_RGB),
+			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
 	FMT(RGB565,   0, 5, 6, 5,  1, 0, 2, 0,  false,  true,  2,  3,
-			MDP_PLANE_INTERLEAVED, CHROMA_RGB),
+			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
 	FMT(BGR565,   0, 5, 6, 5,  2, 0, 1, 0,  false,  true,  2,  3,
-			MDP_PLANE_INTERLEAVED, CHROMA_RGB),
+			MDP_PLANE_INTERLEAVED, CHROMA_FULL, false),
 
 	/* --- RGB formats above / YUV formats below this line --- */
 
 	FMT(NV12,     0, 8, 8, 8,  1, 2, 0, 0,  false,  true,  2, 2,
-			MDP_PLANE_PSEUDO_PLANAR, CHROMA_420),
+			MDP_PLANE_PSEUDO_PLANAR, CHROMA_420, true),
 	FMT(NV21,     0, 8, 8, 8,  2, 1, 0, 0,  false,  true,  2, 2,
-			MDP_PLANE_PSEUDO_PLANAR, CHROMA_420),
+			MDP_PLANE_PSEUDO_PLANAR, CHROMA_420, true),
 };
 
 /*
diff --git a/drivers/gpu/drm/msm/mdp/mdp_kms.h b/drivers/gpu/drm/msm/mdp/mdp_kms.h
index 2d3428c..02c6b7f 100644
--- a/drivers/gpu/drm/msm/mdp/mdp_kms.h
+++ b/drivers/gpu/drm/msm/mdp/mdp_kms.h
@@ -90,9 +90,10 @@ struct mdp_format {
 	uint8_t cpp, unpack_count;
 	enum mdp_fetch_type fetch_type;
 	enum mdp_chroma_samp_type chroma_sample;
+	bool is_yuv;
 };
 #define to_mdp_format(x) container_of(x, struct mdp_format, base)
-#define MDP_FORMAT_IS_YUV(mdp_format) ((mdp_format)->chroma_sample > CHROMA_RGB)
+#define MDP_FORMAT_IS_YUV(mdp_format) ((mdp_format)->is_yuv)
 
 uint32_t mdp_get_formats(uint32_t *formats, uint32_t max_formats, bool rgb_only);
 const struct msm_format *mdp_get_format(struct msm_kms *kms, uint32_t format);
-- 
Qualcomm Innovation Center, Inc.

The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project

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