[PATCH libdrm] modetest: add C8 support to generate SMPTE pattern
Ilia Mirkin
imirkin at alum.mit.edu
Sat Nov 18 04:56:52 UTC 2017
Tested on nouveau with the CRTC only.
Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---
Please note that I have no clue what the proper way to operate the gamma
interface is. This seemed OK, but the 256 seems awefully hardcoded. Perhaps
that won't work on other HW?
tests/modetest/buffers.c | 2 ++
tests/modetest/modetest.c | 13 +++++++++
tests/util/format.c | 2 ++
tests/util/pattern.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++
tests/util/pattern.h | 2 ++
5 files changed, 92 insertions(+)
diff --git a/tests/modetest/buffers.c b/tests/modetest/buffers.c
index 4fd310b9..58f88e85 100644
--- a/tests/modetest/buffers.c
+++ b/tests/modetest/buffers.c
@@ -139,6 +139,7 @@ bo_create(int fd, unsigned int format,
int ret;
switch (format) {
+ case DRM_FORMAT_C8:
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV21:
case DRM_FORMAT_NV16:
@@ -279,6 +280,7 @@ bo_create(int fd, unsigned int format,
planes[2] = virtual + offsets[2];
break;
+ case DRM_FORMAT_C8:
case DRM_FORMAT_ARGB4444:
case DRM_FORMAT_XRGB4444:
case DRM_FORMAT_ABGR4444:
diff --git a/tests/modetest/modetest.c b/tests/modetest/modetest.c
index 62d93327..049bdd5e 100644
--- a/tests/modetest/modetest.c
+++ b/tests/modetest/modetest.c
@@ -1228,6 +1228,19 @@ static void set_mode(struct device *dev, struct pipe_arg *pipes, unsigned int co
fprintf(stderr, "failed to set mode: %s\n", strerror(errno));
return;
}
+
+ if (pipes[0].fourcc == DRM_FORMAT_C8) {
+ uint16_t r[256], g[256], b[256];
+
+ util_smpte_c8_gamma(256, r, g, b);
+ ret = drmModeCrtcSetGamma(
+ dev->fd, pipe->crtc->crtc->crtc_id,
+ 256, r, g, b);
+ if (ret) {
+ fprintf(stderr, "failed to set gamma: %s\n", strerror(errno));
+ return;
+ }
+ }
}
}
diff --git a/tests/util/format.c b/tests/util/format.c
index 043cfe7f..3eefe224 100644
--- a/tests/util/format.c
+++ b/tests/util/format.c
@@ -43,6 +43,8 @@
.yuv = { (order), (xsub), (ysub), (chroma_stride) }
static const struct util_format_info format_info[] = {
+ /* Indexed */
+ { DRM_FORMAT_C8, "C8" },
/* YUV packed */
{ DRM_FORMAT_UYVY, "UYVY", MAKE_YUV_INFO(YUV_YCbCr | YUV_CY, 2, 2, 2) },
{ DRM_FORMAT_VYUY, "VYUY", MAKE_YUV_INFO(YUV_YCrCb | YUV_CY, 2, 2, 2) },
diff --git a/tests/util/pattern.c b/tests/util/pattern.c
index 00b08a8c..41fb541b 100644
--- a/tests/util/pattern.c
+++ b/tests/util/pattern.c
@@ -461,6 +461,77 @@ static void fill_smpte_rgb32(const struct util_rgb_info *rgb, void *mem,
}
}
+static void fill_smpte_c8(void *mem, unsigned int width, unsigned int height,
+ unsigned int stride)
+{
+ unsigned int x;
+ unsigned int y;
+
+ for (y = 0; y < height * 6 / 9; ++y) {
+ for (x = 0; x < width; ++x)
+ ((uint8_t *)mem)[x] = x * 7 / width;
+ mem += stride;
+ }
+
+ for (; y < height * 7 / 9; ++y) {
+ for (x = 0; x < width; ++x)
+ ((uint8_t *)mem)[x] = 7 + (x * 7 / width);
+ mem += stride;
+ }
+
+ for (; y < height; ++y) {
+ for (x = 0; x < width * 5 / 7; ++x)
+ ((uint8_t *)mem)[x] =
+ 14 + (x * 4 / (width * 5 / 7));
+ for (; x < width * 6 / 7; ++x)
+ ((uint8_t *)mem)[x] =
+ 14 + ((x - width * 5 / 7) * 3
+ / (width / 7) + 4);
+ for (; x < width; ++x)
+ ((uint8_t *)mem)[x] = 14 + 7;
+ mem += stride;
+ }
+}
+
+void util_smpte_c8_gamma(unsigned size, uint16_t *r, uint16_t *g, uint16_t *b)
+{
+ if (size < 7 + 7 + 8) {
+ printf("Error: gamma too small: %d < %d\n", size, 7 + 7 + 8);
+ return;
+ }
+#define FILL_COLOR(idx, red, green, blue) \
+ r[idx] = red << 8; \
+ g[idx] = green << 8; \
+ b[idx] = blue << 8
+
+ FILL_COLOR( 0, 192, 192, 192); /* grey */
+ FILL_COLOR( 1, 192, 192, 0 ); /* yellow */
+ FILL_COLOR( 2, 0, 192, 192); /* cyan */
+ FILL_COLOR( 3, 0, 192, 0 ); /* green */
+ FILL_COLOR( 4, 192, 0, 192); /* magenta */
+ FILL_COLOR( 5, 192, 0, 0 ); /* red */
+ FILL_COLOR( 6, 0, 0, 192); /* blue */
+
+ FILL_COLOR( 7, 0, 0, 192); /* blue */
+ FILL_COLOR( 8, 19, 19, 19 ); /* black */
+ FILL_COLOR( 9, 192, 0, 192); /* magenta */
+ FILL_COLOR(10, 19, 19, 19 ); /* black */
+ FILL_COLOR(11, 0, 192, 192); /* cyan */
+ FILL_COLOR(12, 19, 19, 19 ); /* black */
+ FILL_COLOR(13, 192, 192, 192); /* grey */
+
+ FILL_COLOR(14, 0, 33, 76); /* in-phase */
+ FILL_COLOR(15, 255, 255, 255); /* super white */
+ FILL_COLOR(16, 50, 0, 106); /* quadrature */
+ FILL_COLOR(17, 19, 19, 19); /* black */
+ FILL_COLOR(18, 9, 9, 9); /* 3.5% */
+ FILL_COLOR(19, 19, 19, 19); /* 7.5% */
+ FILL_COLOR(20, 29, 29, 29); /* 11.5% */
+ FILL_COLOR(21, 19, 19, 19); /* black */
+
+#undef FILL_COLOR
+}
+
static void fill_smpte(const struct util_format_info *info, void *planes[3],
unsigned int width, unsigned int height,
unsigned int stride)
@@ -468,6 +539,8 @@ static void fill_smpte(const struct util_format_info *info, void *planes[3],
unsigned char *u, *v;
switch (info->format) {
+ case DRM_FORMAT_C8:
+ return fill_smpte_c8(planes[0], width, height, stride);
case DRM_FORMAT_UYVY:
case DRM_FORMAT_VYUY:
case DRM_FORMAT_YUYV:
diff --git a/tests/util/pattern.h b/tests/util/pattern.h
index d5c4260c..302d523e 100644
--- a/tests/util/pattern.h
+++ b/tests/util/pattern.h
@@ -36,4 +36,6 @@ void util_fill_pattern(uint32_t format, enum util_fill_pattern pattern,
void *planes[3], unsigned int width,
unsigned int height, unsigned int stride);
+void util_smpte_c8_gamma(unsigned size, uint16_t *r, uint16_t *g, uint16_t *b);
+
#endif /* UTIL_PATTERN_H */
--
2.13.6
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