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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2019-06-17 02:34:29 +0300
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2022-06-09 22:51:47 +0300
commite0c8403c3c5670c290e0c6ec653b3abd151a9ced (patch)
treeba7515f914ae48f03abaaafdccb9912e9b6e8984
parent74d60e252839a03a2f179d82126d1e0db1b4184e (diff)
utils: Add a dump_framebuffer() methodwriteback
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>
-rw-r--r--kms++util/inc/kms++util/kms++util.h1
-rw-r--r--kms++util/src/drawing.cpp7
-rw-r--r--py/pykms/pykmsutil.cpp3
3 files changed, 11 insertions, 0 deletions
diff --git a/kms++util/inc/kms++util/kms++util.h b/kms++util/inc/kms++util/kms++util.h
index 52b6ce9..0d14c99 100644
--- a/kms++util/inc/kms++util/kms++util.h
+++ b/kms++util/inc/kms++util/kms++util.h
@@ -29,6 +29,7 @@ void draw_text(IFramebuffer& buf, uint32_t x, uint32_t y, const std::string& str
void draw_color_bar(IFramebuffer& buf, int old_xpos, int xpos, int width);
void draw_test_pattern(IFramebuffer& fb, YUVType yuvt = YUVType::BT601_Lim);
+void dump_framebuffer(IFramebuffer& fb, int fd);
} // namespace kms
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
diff --git a/kms++util/src/drawing.cpp b/kms++util/src/drawing.cpp
index 79e0d90..8d82ca4 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>
@@ -554,4 +555,10 @@ 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
diff --git a/py/pykms/pykmsutil.cpp b/py/pykms/pykmsutil.cpp
index 666cbdc..6cf79ee 100644
--- a/py/pykms/pykmsutil.cpp
+++ b/py/pykms/pykmsutil.cpp
@@ -59,4 +59,7 @@ void init_pykmstest(py::module& m)
draw_circle(fb, xCenter, yCenter, radius, color);
});
m.def("draw_text", [](Framebuffer& fb, uint32_t x, uint32_t y, const string& str, RGB color) { draw_text(fb, x, y, str, color); });
+ m.def("dump_framebuffer", [](Framebuffer& fb, int fd) {
+ dump_framebuffer(fb, fd);
+ });
}