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egl/android: replace magic 0=CbCr,1=CrCb with simple enum 

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
This commit is contained in:
Eric Engestrom 2018-11-09 11:55:10 +00:00 committed by Eric Engestrom
parent 6a553bedcc
commit 0c3287e94d
1 changed files with 24 additions and 18 deletions
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42
src/egl/drivers/dri2/platform_android.c
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@ -49,10 +49,15 @@
#define ALIGN(val, align) (((val) + (align) - 1) & ~((align) - 1))
enum chroma_order {
YCbCr,
YCrCb,
};
struct droid_yuv_format {
/* Lookup keys */
int native; /* HAL_PIXEL_FORMAT_ */
int is_ycrcb; /* 0 if chroma order is {Cb, Cr}, 1 if {Cr, Cb} */
enum chroma_order chroma_order; /* chroma order is {Cb, Cr} or {Cr, Cb} */
int chroma_step; /* Distance in bytes between subsequent chroma pixels. */
/* Result */
@ -63,25 +68,25 @@ struct droid_yuv_format {
* on native format and information contained in android_ycbcr struct. */
static const struct droid_yuv_format droid_yuv_formats[] = {
/* Native format, YCrCb, Chroma step, DRI image FourCC */
{ HAL_PIXEL_FORMAT_YCbCr_420_888, 0, 2, __DRI_IMAGE_FOURCC_NV12 },
{ HAL_PIXEL_FORMAT_YCbCr_420_888, 0, 1, __DRI_IMAGE_FOURCC_YUV420 },
{ HAL_PIXEL_FORMAT_YCbCr_420_888, 1, 1, __DRI_IMAGE_FOURCC_YVU420 },
{ HAL_PIXEL_FORMAT_YV12, 1, 1, __DRI_IMAGE_FOURCC_YVU420 },
{ HAL_PIXEL_FORMAT_YCbCr_420_888, YCbCr, 2, __DRI_IMAGE_FOURCC_NV12 },
{ HAL_PIXEL_FORMAT_YCbCr_420_888, YCbCr, 1, __DRI_IMAGE_FOURCC_YUV420 },
{ HAL_PIXEL_FORMAT_YCbCr_420_888, YCrCb, 1, __DRI_IMAGE_FOURCC_YVU420 },
{ HAL_PIXEL_FORMAT_YV12, YCrCb, 1, __DRI_IMAGE_FOURCC_YVU420 },
/* HACK: See droid_create_image_from_prime_fd() and
* https://issuetracker.google.com/32077885. */
{ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, 0, 2, __DRI_IMAGE_FOURCC_NV12 },
{ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, 0, 1, __DRI_IMAGE_FOURCC_YUV420 },
{ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, 1, 1, __DRI_IMAGE_FOURCC_YVU420 },
{ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, 1, 1, __DRI_IMAGE_FOURCC_AYUV },
{ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, 1, 1, __DRI_IMAGE_FOURCC_XYUV8888 },
{ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCbCr, 2, __DRI_IMAGE_FOURCC_NV12 },
{ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCbCr, 1, __DRI_IMAGE_FOURCC_YUV420 },
{ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCrCb, 1, __DRI_IMAGE_FOURCC_YVU420 },
{ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCrCb, 1, __DRI_IMAGE_FOURCC_AYUV },
{ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCrCb, 1, __DRI_IMAGE_FOURCC_XYUV8888 },
};
static int
get_fourcc_yuv(int native, int is_ycrcb, int chroma_step)
get_fourcc_yuv(int native, enum chroma_order chroma_order, int chroma_step)
{
for (int i = 0; i < ARRAY_SIZE(droid_yuv_formats); ++i)
if (droid_yuv_formats[i].native == native &&
droid_yuv_formats[i].is_ycrcb == is_ycrcb &&
droid_yuv_formats[i].chroma_order == chroma_order &&
droid_yuv_formats[i].chroma_step == chroma_step)
return droid_yuv_formats[i].fourcc;
@ -777,7 +782,7 @@ droid_create_image_from_prime_fd_yuv(_EGLDisplay *disp, _EGLContext *ctx,
struct android_ycbcr ycbcr;
size_t offsets[3];
size_t pitches[3];
int is_ycrcb;
enum chroma_order chroma_order;
int fourcc;
int ret;
@ -805,11 +810,12 @@ droid_create_image_from_prime_fd_yuv(_EGLDisplay *disp, _EGLContext *ctx,
* so they can be interpreted as offsets. */
offsets[0] = (size_t)ycbcr.y;
/* We assume here that all the planes are located in one DMA-buf. */
is_ycrcb = (size_t)ycbcr.cr < (size_t)ycbcr.cb;
if (is_ycrcb) {
if ((size_t)ycbcr.cr < (size_t)ycbcr.cb) {
chroma_order = YCrCb;
offsets[1] = (size_t)ycbcr.cr;
offsets[2] = (size_t)ycbcr.cb;
} else {
chroma_order = YCbCr;
offsets[1] = (size_t)ycbcr.cb;
offsets[2] = (size_t)ycbcr.cr;
}
@ -823,10 +829,10 @@ droid_create_image_from_prime_fd_yuv(_EGLDisplay *disp, _EGLContext *ctx,
/* .chroma_step is the byte distance between the same chroma channel
* values of subsequent pixels, assumed to be the same for Cb and Cr. */
fourcc = get_fourcc_yuv(buf->format, is_ycrcb, ycbcr.chroma_step);
fourcc = get_fourcc_yuv(buf->format, chroma_order, ycbcr.chroma_step);
if (fourcc == -1) {
_eglLog(_EGL_WARNING, "unsupported YUV format, native = %x, is_ycrcb = %d, chroma_step = %d",
buf->format, is_ycrcb, ycbcr.chroma_step);
_eglLog(_EGL_WARNING, "unsupported YUV format, native = %x, chroma_order = %s, chroma_step = %d",
buf->format, chroma_order == YCbCr ? "YCbCr" : "YCrCb", ycbcr.chroma_step);
return NULL;
}