wcap: Add a file format magic number and add the pixel format to the header
diff --git a/src/screenshooter.c b/src/screenshooter.c
index 77d34ea..d368cfd 100644
--- a/src/screenshooter.c
+++ b/src/screenshooter.c
@@ -318,12 +318,18 @@
pixman_region32_fini(&damage);
}
+#define WCAP_HEADER_MAGIC 0x57434150
+#define WCAP_FORMAT_XRGB8888 0x34325258
+#define WCAP_FORMAT_XBGR8888 0x34324258
+#define WCAP_FORMAT_RGBX8888 0x34325852
+#define WCAP_FORMAT_BGRX8888 0x34325842
+
static void
weston_recorder_create(struct weston_output *output, const char *filename)
{
struct weston_recorder *recorder;
int stride, size;
- struct { uint32_t width, height; } header;
+ struct { uint32_t magic, format, width, height; } header;
recorder = malloc(sizeof *recorder);
recorder->output = output;
@@ -338,6 +344,17 @@
recorder->fd = open(filename,
O_WRONLY | O_CREAT | O_TRUNC | O_CLOEXEC, 0644);
+ header.magic = WCAP_HEADER_MAGIC;
+
+ switch (output->compositor->read_format) {
+ case GL_BGRA_EXT:
+ header.format = WCAP_FORMAT_XRGB8888;
+ break;
+ case GL_RGBA:
+ header.format = WCAP_FORMAT_XBGR8888;
+ break;
+ }
+
header.width = output->current->width;
header.height = output->current->height;
recorder->total += write(recorder->fd, &header, sizeof header);
diff --git a/src/wcap-decode.c b/src/wcap-decode.c
index 9ff7ddb..8382bfb 100644
--- a/src/wcap-decode.c
+++ b/src/wcap-decode.c
@@ -33,7 +33,16 @@
#include <cairo.h>
+#define WCAP_HEADER_MAGIC 0x57434150
+
+#define WCAP_FORMAT_XRGB8888 0x34325258
+#define WCAP_FORMAT_XBGR8888 0x34324258
+#define WCAP_FORMAT_RGBX8888 0x34325852
+#define WCAP_FORMAT_BGRX8888 0x34325842
+
struct wcap_header {
+ uint32_t magic;
+ uint32_t format;
uint32_t width, height;
};