@@ -39,6 +39,8 @@
.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) },
@@ -457,6 +457,79 @@ 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, struct drm_color_lut *lut)
+{
+ if (size < 7 + 7 + 8) {
+ printf("Error: gamma too small: %d < %d\n", size, 7 + 7 + 8);
+ return;
+ }
+ memset(lut, size * sizeof(struct drm_color_lut), 0);
+
+#define FILL_COLOR(idx, r, g, b) \
+ lut[idx].red = (r) << 8; \
+ lut[idx].green = (g) << 8; \
+ lut[idx].blue = (b) << 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)
@@ -464,6 +537,8 @@ 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:
@@ -26,6 +26,8 @@
#ifndef UTIL_PATTERN_H
#define UTIL_PATTERN_H
+#include <drm/drm_mode.h>
+
enum util_fill_pattern {
UTIL_PATTERN_TILES,
UTIL_PATTERN_PLAIN,
@@ -36,4 +38,6 @@ 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, struct drm_color_lut *lut);
+
#endif /* UTIL_PATTERN_H */
This also adds a helper to generate a color LUT, which has to be used in conjunction with the C8 indexed format. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> --- tests/util/format.c | 2 ++ tests/util/pattern.c | 75 ++++++++++++++++++++++++++++++++++++++++++++ tests/util/pattern.h | 4 +++ 3 files changed, 81 insertions(+)