diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2019-06-17 02:34:29 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2026-05-11 15:55:24 +0300 |
| commit | cf7eadd88eeeae3a21305272499676a2df67bb94 (patch) | |
| tree | 0683b10d4a98f934bcab7ec1177223d29457a408 /kms++util/src/drawing.cpp | |
| parent | 73a82c3afb9af0a392d9d572ed2f6cd1e091a487 (diff) | |
utils: Add a dump_framebuffer() method
Add a new method to write the contents of a framebuffer to a file
descriptor. This can be used to capture frames from writeback
connectors.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'kms++util/src/drawing.cpp')
| -rw-r--r-- | kms++util/src/drawing.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kms++util/src/drawing.cpp b/kms++util/src/drawing.cpp index df02485..80ff797 100644 --- a/kms++util/src/drawing.cpp +++ b/kms++util/src/drawing.cpp @@ -1,5 +1,6 @@ #include <cmath> +#include <unistd.h> #include <kms++/kms++.h> #include <kms++util/kms++util.h> @@ -621,4 +622,10 @@ void draw_text(IFramebuffer& buf, uint32_t x, uint32_t y, const string& str, RGB draw_char(buf, (x + 8 * i), y, str[i], color); } +void dump_framebuffer(IFramebuffer& fb, int fd) +{ + for (unsigned int i = 0; i < fb.num_planes(); ++i) + ::write(fd, fb.map(i), fb.size(i)); +} + } // namespace kms |