Use of 32bit RGB samples, where each component is 8bit, cannot
support formats with components greater than 8bit (ex, XRGB2101010).
Introduce MAKE_RGBA_64() which creates pixels from a 64bit sample.
Each component in a 64bit sample is 16bit long, thus a pixel with 10bit
components can be generated correctly.
MAKE_RGBA() can use MAKE_RGBA_64() by scaling each 8bit component
to 16bit, for compatilbity.
Signed-off-by: Hyun Kwon <hyun.kwon@xxxxxxxxxx>
---
tests/util/pattern.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/tests/util/pattern.c b/tests/util/pattern.c
index 9fa0a41..aa067c9 100644
--- a/tests/util/pattern.c
+++ b/tests/util/pattern.c
@@ -60,11 +60,17 @@ struct color_yuv {
.u = MAKE_YUV_601_U(r, g, b), \
.v = MAKE_YUV_601_V(r, g, b) }
+#define COLOR_MASK(value, color) \
+ ((value & ((1 << (color).length) - 1)) << (color).offset)
+
+#define MAKE_RGBA_64(rgb, r, g, b, a) \
+ (COLOR_MASK(((r) >> (16 - (rgb)->red.length)), (rgb)->red) | \
+ COLOR_MASK(((g) >> (16 - (rgb)->green.length)), (rgb)->green) | \
+ COLOR_MASK(((b) >> (16 - (rgb)->blue.length)), (rgb)->blue) | \
+ COLOR_MASK(((a) >> (16 - (rgb)->alpha.length)), (rgb)->alpha))
+
#define MAKE_RGBA(rgb, r, g, b, a) \
- ((((r) >> (8 - (rgb)->red.length)) << (rgb)->red.offset) | \
- (((g) >> (8 - (rgb)->green.length)) << (rgb)->green.offset) | \
- (((b) >> (8 - (rgb)->blue.length)) << (rgb)->blue.offset) | \
- (((a) >> (8 - (rgb)->alpha.length)) << (rgb)->alpha.offset))
+ MAKE_RGBA_64(rgb, (r) * 0x101, (g) * 0x101, (b) * 0x101, (a) * 0x101)
#define MAKE_RGB24(rgb, r, g, b) \
{ .value = MAKE_RGBA(rgb, r, g, b, 0) }
--
2.7.4
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