On 2015-04-24 03:48, Joonyoung Shim wrote:
Hi Tobias,
On 04/23/2015 09:12 PM, Tobias Jakobi wrote:
Move the defines for the pixelformats that the mixer supports out
of mixer_graph_buffer() to the top of the source.
Then select the mixer pixelformat (pf) in mixer_graph_buffer() based
on
the plane's pf (and not bpp).
Also add handling of RGB565 and XRGB1555 to the switch statement and
exit early if the plane has an unsupported pf.
Partially based on 'drm/exynos: enable/disable blend based on pixel
format' by Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>.
Signed-off-by: Tobias Jakobi <tjakobi@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/exynos/exynos_mixer.c | 32
++++++++++++++++++++++----------
1 file changed, 22 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c
b/drivers/gpu/drm/exynos/exynos_mixer.c
index fbec750..1bd23ee 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -44,6 +44,12 @@
#define MIXER_WIN_NR 3
#define MIXER_DEFAULT_WIN 0
+/* The pixelformats that are natively supported by the mixer. */
+#define MIXER_PIXELFORMAT_RGB565 4
+#define MIXER_PIXELFORMAT_ARGB1555 5
+#define MIXER_PIXELFORMAT_ARGB4444 6
+#define MIXER_PIXELFORMAT_ARGB8888 7
+
Seems be long, how about s/PIXELFORMAT/FORMAT or just MIXER_RGB565 ...
?
Please use tab between define name and value.
How about MXR_FORMAT_XYZ, to stay consistent with the regs-mixer header?
struct mixer_resources {
int irq;
void __iomem *mixer_regs;
@@ -531,20 +537,26 @@ static void mixer_graph_buffer(struct
mixer_context *ctx, int win)
plane = &ctx->planes[win];
- #define RGB565 4
- #define ARGB1555 5
- #define ARGB4444 6
- #define ARGB8888 7
+ switch (plane->pixel_format) {
+ case DRM_FORMAT_XRGB4444:
+ fmt = MIXER_PIXELFORMAT_ARGB4444;
+ break;
+
+ case DRM_FORMAT_XRGB1555:
+ fmt = MIXER_PIXELFORMAT_ARGB1555;
+ break;
- switch (plane->bpp) {
- case 16:
- fmt = ARGB4444;
+ case DRM_FORMAT_RGB565:
+ fmt = MIXER_PIXELFORMAT_RGB565;
break;
- case 32:
- fmt = ARGB8888;
+
+ case DRM_FORMAT_XRGB8888:
+ fmt = MIXER_PIXELFORMAT_ARGB8888;
break;
+
default:
- fmt = ARGB8888;
+ DRM_DEBUG_KMS("pixelformat unsupported by mixer\n");
+ return;
}
/* check if mixer supports requested scaling setup */
Hmm missing formats having alpha?
DRM_FORMAT_ARGB4444
DRM_FORMAT_ARGB1555
DRM_FORMAT_ARGB8888
Should be obvious from my other mail. Blending/alpha is currently
screwed up, so we shouldn't add these formats at this point. At least
not before figuring out how to properly solve the issue.
Thanks.
With best wishes,
Tobias
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