[igt-dev] [PATCH i-g-t 3/4] lib/igt_fb: Add support for Y21x formats as well.

Maarten Lankhorst
2019-02-01T11:15:56Z

Those formats are packed like YUYV, but only 16 bits per component.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
---
include/drm-uapi/drm_fourcc.h | 6 +-
lib/igt_color_encoding.c | 3 +
lib/igt_fb.c | 146 ++++++++++++++++++++++++++++++++++
3 files changed, 154 insertions(+), 1 deletion(-)

diff --git a/include/drm-uapi/drm_fourcc.h b/include/drm-uapi/drm_fourcc.h
index c9a5e5787031..8f1b5f832a09 100644
--- a/include/drm-uapi/drm_fourcc.h
+++ b/include/drm-uapi/drm_fourcc.h
@@ -149,10 +149,14 @@ extern "C" {
#define DRM_FORMAT_YVYU fourcc_code('Y', 'V', 'Y', 'U') /* [31:0] Cb0:Y1:Cr0:Y0 8:8:8:8 little endian */
#define DRM_FORMAT_UYVY fourcc_code('U', 'Y', 'V', 'Y') /* [31:0] Y1:Cr0:Y0:Cb0 8:8:8:8 little endian */
#define DRM_FORMAT_VYUY fourcc_code('V', 'Y', 'U', 'Y') /* [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian */
-
#define DRM_FORMAT_AYUV fourcc_code('A', 'Y', 'U', 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */
#define DRM_FORMAT_XYUV8888 fourcc_code('X', 'Y', 'U', 'V') /* [31:0] X:Y:Cb:Cr 8:8:8:8 little endian */

+/* Like YUYV, but 16 bpc, lowest bits unused like in DRM_FORMAT_P01X */
+#define DRM_FORMAT_Y210 fourcc_code('Y', '2', '1', '0')
+#define DRM_FORMAT_Y212 fourcc_code('Y', '2', '1', '2')
+#define DRM_FORMAT_Y216 fourcc_code('Y', '2', '1', '6')
+
/*
* packed YCbCr420 2x2 tiled formats
* first 64 bits will contain Y,Cb,Cr components for a 2x2 tile
diff --git a/lib/igt_color_encoding.c b/lib/igt_color_encoding.c
index b7a12a1e07f7..6f82fcec62e4 100644
--- a/lib/igt_color_encoding.c
+++ b/lib/igt_color_encoding.c
@@ -144,6 +144,9 @@ static const struct color_encoding_format {
{ DRM_FORMAT_P010, 65472.f, 4096.f, 60160.f, 4096.f, 32768.f, 61440.f },
{ DRM_FORMAT_P012, 65520.f, 4096.f, 60160.f, 4096.f, 32768.f, 61440.f },
{ DRM_FORMAT_P016, 65535.f, 4096.f, 60160.f, 4096.f, 32768.f, 61440.f },
+ { DRM_FORMAT_Y210, 65472.f, 4096.f, 60160.f, 4096.f, 32768.f, 61440.f },
+ { DRM_FORMAT_Y212, 65520.f, 4096.f, 60160.f, 4096.f, 32768.f, 61440.f },
+ { DRM_FORMAT_Y216, 65535.f, 4096.f, 60160.f, 4096.f, 32768.f, 61440.f },
};

static const struct color_encoding_format *lookup_fourcc(uint32_t fourcc)
diff --git a/lib/igt_fb.c b/lib/igt_fb.c
index 8bd0420fc2e4..c14cc10d1b73 100644
--- a/lib/igt_fb.c
+++ b/lib/igt_fb.c
@@ -151,6 +151,18 @@ static const struct format_desc_struct {
.cairo_id = CAIRO_FORMAT_RGB24,
.num_planes = 1, .plane_bpp = { 16, },
},
+ { .name = "Y210", .depth = -1, .drm_id = DRM_FORMAT_Y210,
+ .cairo_id = CAIRO_FORMAT_RGB96F,
+ .num_planes = 1, .plane_bpp = { 32, },
+ },
+ { .name = "Y212", .depth = -1, .drm_id = DRM_FORMAT_Y212,
+ .cairo_id = CAIRO_FORMAT_RGB96F,
+ .num_planes = 1, .plane_bpp = { 32, },
+ },
+ { .name = "Y216", .depth = -1, .drm_id = DRM_FORMAT_Y216,
+ .cairo_id = CAIRO_FORMAT_RGB96F,
+ .num_planes = 1, .plane_bpp = { 32, },
+ },
{ .name = "P010", .depth = -1, .drm_id = DRM_FORMAT_P010,
.cairo_id = CAIRO_FORMAT_RGB96F,
.num_planes = 2, .plane_bpp = { 16, 32 },
@@ -553,6 +565,13 @@ static int create_bo_for_fb(struct igt_fb *fb)
fb->offsets[1] / sizeof(wchar_t));
wmemset(ptr + fb->offsets[1], 0x80008000,
DIV_ROUND_UP(fb->height,2) * fb->strides[1] / sizeof(wchar_t));
+ case DRM_FORMAT_Y210:
+ case DRM_FORMAT_Y212:
+ case DRM_FORMAT_Y216:
+ wmemset(ptr + fb->offsets[0],
+ full_range ? 0x80000000 : 0x80001000,
+ fb->strides[0] * fb->plane_height[0] / sizeof(wchar_t));
+ break;
}
gem_munmap(ptr, fb->size);

@@ -2139,6 +2158,120 @@ static void convert_float_to_p01X(struct fb_convert *cvt)
}
}

+
+static void convert_Y21X_to_float(struct fb_convert *cvt)
+{
+ int i, j;
+ const uint16_t *yuyv;
+ uint16_t *buf;
+ float *ptr = cvt->dst.ptr;
+ unsigned int float_stride = cvt->dst.fb->strides[0] / sizeof(*ptr);
+ unsigned int yuyv_stride = cvt->src.fb->strides[0] / sizeof(*yuyv);
+ struct igt_mat4 m = igt_ycbcr_to_rgb_matrix(cvt->src.fb->drm_format,
+ cvt->dst.fb->drm_format,
+ cvt->src.fb->color_encoding,
+ cvt->src.fb->color_range);
+
+ igt_assert((cvt->src.fb->drm_format == DRM_FORMAT_Y210 ||
+ cvt->src.fb->drm_format == DRM_FORMAT_Y212 ||
+ cvt->src.fb->drm_format == DRM_FORMAT_Y216) &&
+ cvt->dst.fb->drm_format == IGT_FORMAT_FLOAT);
+
+ yuyv = buf = convert_src_get(cvt);
+
+ for (i = 0; i < cvt->dst.fb->height; i++) {
+ for (j = 0; j < cvt->dst.fb->width / 2; j++) {
+ /* Convert 2x1 pixel blocks */
+ struct igt_vec4 yuv[2];
+ struct igt_vec4 rgb[2];
+
+ yuv[0].d[0] = yuyv[j * 4 + 0];
+ yuv[1].d[0] = yuyv[j * 4 + 2];
+ yuv[0].d[1] = yuv[1].d[1] = yuyv[j * 4 + 1];
+ yuv[0].d[2] = yuv[1].d[2] = yuyv[j * 4 + 3];
+ yuv[0].d[3] = yuv[1].d[3] = 1.0f;
+
+ rgb[0] = igt_matrix_transform(&m, &yuv[0]);
+ rgb[1] = igt_matrix_transform(&m, &yuv[1]);
+
+ write_rgbf(&ptr[j * 6 + 0], &rgb[0]);
+ write_rgbf(&ptr[j * 6 + 3], &rgb[1]);
+ }
+
+ if (cvt->dst.fb->width & 1) {
+ struct igt_vec4 yuv;
+ struct igt_vec4 rgb;
+
+ yuv.d[0] = yuyv[j * 4 + 0];
+ yuv.d[1] = yuyv[j * 4 + 1];
+ yuv.d[2] = yuyv[j * 4 + 3];
+ yuv.d[3] = 1.0f;
+
+ rgb = igt_matrix_transform(&m, &yuv);
+
+ write_rgbf(&ptr[j * 6 + 0], &rgb);
+ }
+
+ ptr += float_stride;
+ yuyv += yuyv_stride;
+ }
+
+ convert_src_put(cvt, buf);
+}
+
+static void convert_float_to_Y21X(struct fb_convert *cvt)
+{
+ int i, j;
+ uint16_t *yuyv = cvt->dst.ptr;
+ const float *ptr = cvt->src.ptr;
+ unsigned float_stride = cvt->src.fb->strides[0] / sizeof(*ptr);
+ unsigned yuyv_stride = cvt->dst.fb->strides[0] / sizeof(*yuyv);
+ struct igt_mat4 m = igt_rgb_to_ycbcr_matrix(cvt->src.fb->drm_format,
+ cvt->dst.fb->drm_format,
+ cvt->dst.fb->color_encoding,
+ cvt->dst.fb->color_range);
+
+ igt_assert(cvt->src.fb->drm_format == IGT_FORMAT_FLOAT &&
+ (cvt->dst.fb->drm_format == DRM_FORMAT_Y210 ||
+ cvt->dst.fb->drm_format == DRM_FORMAT_Y212 ||
+ cvt->dst.fb->drm_format == DRM_FORMAT_Y216));
+
+ for (i = 0; i < cvt->dst.fb->height; i++) {
+ for (j = 0; j < cvt->dst.fb->width / 2; j++) {
+ /* Convert 2x1 pixel blocks */
+ struct igt_vec4 rgb[2];
+ struct igt_vec4 yuv[2];
+
+ read_rgbf(&rgb[0], &ptr[j * 6 + 0]);
+ read_rgbf(&rgb[1], &ptr[j * 6 + 3]);
+
+ yuv[0] = igt_matrix_transform(&m, &rgb[0]);
+ yuv[1] = igt_matrix_transform(&m, &rgb[1]);
+
+ yuyv[j * 4 + 0] = yuv[0].d[0];
+ yuyv[j * 4 + 2] = yuv[1].d[0];
+ yuyv[j * 4 + 1] = (yuv[0].d[1] + yuv[1].d[1]) / 2.0f;
+ yuyv[j * 4 + 3] = (yuv[0].d[2] + yuv[1].d[2]) / 2.0f;
+ }
+
+ if (cvt->dst.fb->width & 1) {
+ struct igt_vec4 rgb;
+ struct igt_vec4 yuv;
+
+ read_rgbf(&rgb, &ptr[j * 6 + 0]);
+
+ yuv = igt_matrix_transform(&m, &rgb);
+
+ yuyv[j * 4 + 0] = yuv.d[0];
+ yuyv[j * 4 + 1] = yuv.d[1];
+ yuyv[j * 4 + 3] = yuv.d[2];
+ }
+
+ ptr += float_stride;
+ yuyv += yuyv_stride;
+ }
+}
+
static void convert_pixman(struct fb_convert *cvt)
{
pixman_format_code_t src_pixman = drm_format_to_pixman(cvt->src.fb->drm_format);
@@ -2221,6 +2354,11 @@ static void fb_convert(struct fb_convert *cvt)
case DRM_FORMAT_P016:
convert_p01X_to_float(cvt);
return;
+ case DRM_FORMAT_Y210:
+ case DRM_FORMAT_Y212:
+ case DRM_FORMAT_Y216:
+ convert_Y21X_to_float(cvt);
+ return;
}
} else if (cvt->src.fb->drm_format == IGT_FORMAT_FLOAT) {
switch (cvt->dst.fb->drm_format) {
@@ -2229,6 +2367,11 @@ static void fb_convert(struct fb_convert *cvt)
case DRM_FORMAT_P016:
convert_float_to_p01X(cvt);
return;
+ case DRM_FORMAT_Y210:
+ case DRM_FORMAT_Y212:
+ case DRM_FORMAT_Y216:
+ convert_float_to_Y21X(cvt);
+ return;
}
}

@@ -2583,6 +2726,9 @@ bool igt_format_is_yuv(uint32_t drm_format)
case DRM_FORMAT_P010:
case DRM_FORMAT_P012:
case DRM_FORMAT_P016:
+ case DRM_FORMAT_Y210:
+ case DRM_FORMAT_Y212:
+ case DRM_FORMAT_Y216:
case DRM_FORMAT_YUYV:
case DRM_FORMAT_YVYU:
case DRM_FORMAT_UYVY:
--
2.20.1