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authortangrobin <tangrobin@google.com>2018-08-07 11:23:31 +0200
committerTao Bao <tbao@google.com>2018-08-07 19:10:33 +0200
commit13bec7666295dd591868d01b1eec95522a03a2f4 (patch)
treee95a36e6125d3377ee26ec0f7142280ea1857e77 /minui/graphics_drm.cpp
parentMerge "Add an updater function to compute hash tree" (diff)
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Diffstat (limited to 'minui/graphics_drm.cpp')
-rw-r--r--minui/graphics_drm.cpp10
1 files changed, 7 insertions, 3 deletions
diff --git a/minui/graphics_drm.cpp b/minui/graphics_drm.cpp
index 9336a1e63..630b80180 100644
--- a/minui/graphics_drm.cpp
+++ b/minui/graphics_drm.cpp
@@ -117,12 +117,16 @@ GRSurfaceDrm* MinuiBackendDrm::DrmCreateSurface(int width, int height) {
uint32_t format;
PixelFormat pixel_format = gr_pixel_format();
+ // PixelFormat comes in byte order, whereas DRM_FORMAT_* uses little-endian
+ // (external/libdrm/include/drm/drm_fourcc.h). Note that although drm_fourcc.h also defines a
+ // macro of DRM_FORMAT_BIG_ENDIAN, it doesn't seem to be actually supported (see the discussion
+ // in https://lists.freedesktop.org/archives/amd-gfx/2017-May/008560.html).
if (pixel_format == PixelFormat::ABGR) {
- format = DRM_FORMAT_ABGR8888;
+ format = DRM_FORMAT_RGBA8888;
} else if (pixel_format == PixelFormat::BGRA) {
- format = DRM_FORMAT_BGRA8888;
+ format = DRM_FORMAT_ARGB8888;
} else if (pixel_format == PixelFormat::RGBX) {
- format = DRM_FORMAT_RGBX8888;
+ format = DRM_FORMAT_XBGR8888;
} else {
format = DRM_FORMAT_RGB565;
}