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-rw-r--r--drmtools.c407
1 files changed, 393 insertions, 14 deletions
diff --git a/drmtools.c b/drmtools.c
index 042b8d6..b3b3a9b 100644
--- a/drmtools.c
+++ b/drmtools.c
@@ -8,14 +8,392 @@
#include <inttypes.h>
#include <sys/ioctl.h>
+#include <drm/drm_fourcc.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
+#include <cairo.h>
+
#include "drmtools.h"
/* ------------------------------------------------------------------ */
+#define FOURCC_NAME(_fcc) { \
+ (_fcc >> 0) & 0xff, \
+ (_fcc >> 8) & 0xff, \
+ (_fcc >> 16) & 0xff, \
+ (_fcc >> 24) & 0xff, \
+ 0 }
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+# define LE_BE(_le, _be) (_le)
+#endif
+#if __BYTE_ORDER == __BIG_ENDIAN
+# define LE_BE(_le, _be) (_be)
+#endif
+
+const struct fbformat fmts[] = {
+
+ /*
+ * -----------------------------------------------------------------
+ * legacy formats, native endian (DRM_IOCTL_MODE_ADDFB)
+ */
+ {
+ .name = "24",
+ .fields = "x:R:G:B",
+ .bits = "8:8:8:8",
+ .bpp = 32,
+ .depth = 24,
+ .cairo = CAIRO_FORMAT_RGB24,
+ },{
+ .name = "30",
+ .fields = "x:R:G:B",
+ .bits = "2:10:10:10",
+ .bpp = 32,
+ .depth = 30,
+ .cairo = CAIRO_FORMAT_RGB30,
+ },{
+ .name = "15",
+ .fields = "x:R:G:B",
+ .bits = "1:5:5:5",
+ .bpp = 16,
+ .depth = 15,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = "16",
+ .fields = "R:G:B",
+ .bits = "5:6:5",
+ .bpp = 16,
+ .depth = 16,
+ .cairo = CAIRO_FORMAT_RGB16_565,
+ },
+
+ /*
+ * -----------------------------------------------------------------
+ * fourcc formats, little endian (DRM_IOCTL_MODE_ADDFB2)
+ */
+
+ /* --- 8 bpp, rgb --- */
+ {
+ .name = FOURCC_NAME(DRM_FORMAT_RGB332),
+ .fields = "R:G:B",
+ .bits = "3:3:2",
+ .bpp = 8,
+ .fourcc = DRM_FORMAT_RGB332,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_BGR233),
+ .fields = "B:G:R",
+ .bits = "2:3:3",
+ .bpp = 8,
+ .fourcc = DRM_FORMAT_BGR233,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },
+
+ /* -- 16 bpp, rgb --- */
+ {
+ .name = FOURCC_NAME(DRM_FORMAT_XRGB4444),
+ .fields = "x:R:G:B",
+ .bits = "4:4:4:4",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_XRGB4444,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_XBGR4444),
+ .fields = "x:B:G:R",
+ .bits = "4:4:4:4",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_XBGR4444,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_RGBX4444),
+ .fields = "R:G:B:x",
+ .bits = "4:4:4:4",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_RGBX4444,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_BGRX4444),
+ .fields = "B:G:R:x",
+ .bits = "4:4:4:4",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_BGRX4444,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_ARGB4444),
+ .fields = "A:R:G:B",
+ .bits = "4:4:4:4",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_ARGB4444,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_ABGR4444),
+ .fields = "A:B:G:R",
+ .bits = "4:4:4:4",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_ABGR4444,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_RGBA4444),
+ .fields = "R:G:B:A",
+ .bits = "4:4:4:4",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_RGBA4444,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_BGRA4444),
+ .fields = "B:G:R:A",
+ .bits = "4:4:4:4",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_BGRA4444,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_XRGB1555),
+ .fields = "x:R:G:B",
+ .bits = "1:5:5:5",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_XRGB1555,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_XBGR1555),
+ .fields = "x:B:G:R",
+ .bits = "1:5:5:5",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_XBGR1555,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_RGBX5551),
+ .fields = "R:G:B:x",
+ .bits = "5:5:5:1",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_RGBX5551,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_BGRX5551),
+ .fields = "B:G:R:x",
+ .bits = "5:5:5:1",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_BGRX5551,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_ARGB1555),
+ .fields = "A:R:G:B",
+ .bits = "1:5:5:5",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_ARGB1555,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_ABGR1555),
+ .fields = "A:B:G:R",
+ .bits = "1:5:5:5",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_ABGR1555,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_RGBA5551),
+ .fields = "R:G:B:A",
+ .bits = "5:5:5:1",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_RGBA5551,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_BGRA5551),
+ .fields = "B:G:R:A",
+ .bits = "5:5:5:1",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_BGRA5551,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_RGB565),
+ .fields = "R:G:B",
+ .bits = "5:6:5",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_RGB565,
+ .cairo = LE_BE(CAIRO_FORMAT_RGB16_565, CAIRO_FORMAT_INVALID),
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_BGR565),
+ .fields = "B:G:R",
+ .bits = "5:6:5",
+ .bpp = 16,
+ .fourcc = DRM_FORMAT_BGR565,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },
+
+ /* --- 24 bpp, rgb --- */
+ {
+ .name = FOURCC_NAME(DRM_FORMAT_RGB888),
+ .fields = "R:G:B",
+ .bits = "8:8:8",
+ .bpp = 24,
+ .fourcc = DRM_FORMAT_RGB888,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_BGR888),
+ .fields = "B:G:R",
+ .bits = "8:8:8",
+ .bpp = 24,
+ .fourcc = DRM_FORMAT_BGR888,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },
+
+ /* --- 32 bpp, rgb --- */
+ {
+ .name = FOURCC_NAME(DRM_FORMAT_XRGB8888),
+ .fields = "x:R:G:B",
+ .bits = "8:8:8:8",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_XRGB8888,
+ .cairo = LE_BE(CAIRO_FORMAT_RGB24, CAIRO_FORMAT_INVALID),
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_XBGR8888),
+ .fields = "x:B:G:R",
+ .bits = "8:8:8:8",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_XBGR8888,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_RGBX8888),
+ .fields = "R:G:B:x",
+ .bits = "8:8:8:8",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_RGBX8888,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_BGRX8888),
+ .fields = "B:G:R:x",
+ .bits = "8:8:8:8",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_BGRX8888,
+ .cairo = LE_BE(CAIRO_FORMAT_INVALID, CAIRO_FORMAT_RGB24),
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_ARGB8888),
+ .fields = "A:R:G:B",
+ .bits = "8:8:8:8",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_ARGB8888,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_ABGR8888),
+ .fields = "A:B:G:R",
+ .bits = "8:8:8:8",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_ABGR8888,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_RGBA8888),
+ .fields = "R:G:B:A",
+ .bits = "8:8:8:8",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_RGBA8888,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_BGRA8888),
+ .fields = "B:G:R:A",
+ .bits = "8:8:8:8",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_BGRA8888,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_XRGB2101010),
+ .fields = "x:R:G:B",
+ .bits = "2:10:10:10",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_XRGB2101010,
+ .cairo = LE_BE(CAIRO_FORMAT_RGB30, CAIRO_FORMAT_INVALID)
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_XBGR2101010),
+ .fields = "x:B:G:R",
+ .bits = "2:10:10:10",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_XBGR2101010,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_RGBX1010102),
+ .fields = "R:G:B:x",
+ .bits = "10:10:10:2",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_RGBX1010102,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_BGRX1010102),
+ .fields = "B:G:R:x",
+ .bits = "10:10:10:2",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_BGRX1010102,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_ARGB2101010),
+ .fields = "A:R:G:B",
+ .bits = "2:10:10:10",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_ARGB2101010,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_ABGR2101010),
+ .fields = "A:B:G:R",
+ .bits = "2:10:10:10",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_ABGR2101010,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_RGBA1010102),
+ .fields = "R:G:B:A",
+ .bits = "10:10:10:2",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_RGBA1010102,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_BGRA1010102),
+ .fields = "B:G:R:A",
+ .bits = "10:10:10:2",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_BGRA1010102,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },
+
+ /* --- 32 bpp, yuv --- */
+ {
+ .name = FOURCC_NAME(DRM_FORMAT_YUYV),
+ .fields = "Cr0:Y1:Cb0:Y0",
+ .bits = "8:8:8:8",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_YUYV,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_YVYU),
+ .fields = "Cb0:Y1:Cr0:Y0",
+ .bits = "8:8:8:8",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_YVYU,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_UYVY),
+ .fields = "Y1:Cr0:Y0:Cb0",
+ .bits = "8:8:8:8",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_UYVY,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_VYUY),
+ .fields = "Y1:Cb0:Y0:Cr0",
+ .bits = "8:8:8:8",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_VYUY,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },{
+ .name = FOURCC_NAME(DRM_FORMAT_AYUV),
+ .fields = "A:Y:Cb:Cr",
+ .bits = "8:8:8:8",
+ .bpp = 32,
+ .fourcc = DRM_FORMAT_AYUV,
+ .cairo = CAIRO_FORMAT_INVALID,
+ },
+};
+const uint32_t fmtcnt = sizeof(fmts)/sizeof(fmts[0]);
+
+/* ------------------------------------------------------------------ */
+
static const char *conn_type[] = {
[ DRM_MODE_CONNECTOR_Unknown ] = "Unknown",
[ DRM_MODE_CONNECTOR_VGA ] = "VGA",
@@ -93,7 +471,7 @@ void drm_conn_name(drmModeConnector *conn, char *dest, int dlen)
/* ------------------------------------------------------------------ */
-bool drm_probe_format(int fd, uint32_t bpp, uint32_t depth, uint32_t fourcc, bool print)
+bool drm_probe_format(int fd, const struct fbformat *fmt)
{
struct drm_mode_create_dumb cd;
struct drm_mode_destroy_dumb dd;
@@ -106,27 +484,19 @@ bool drm_probe_format(int fd, uint32_t bpp, uint32_t depth, uint32_t fourcc, boo
memset(&cd, 0, sizeof(cd));
cd.width = 64;
cd.height = 64;
- cd.bpp = bpp;
+ cd.bpp = fmt->bpp;
rc = drmIoctl(fd, DRM_IOCTL_MODE_CREATE_DUMB, &cd);
if (rc < 0)
goto done;
/* create framebuffer */
- if (fourcc) {
- rc = drmModeAddFB2(fd, cd.width, cd.height, fourcc,
+ if (fmt->fourcc) {
+ rc = drmModeAddFB2(fd, cd.width, cd.height, fmt->fourcc,
&cd.handle, &cd.pitch, &zero,
&fb_id, 0);
- if (rc == 0 && print)
- printf(" bpp %d, fourcc %c%c%c%c\n", cd.bpp,
- (fourcc >> 0) & 0xff,
- (fourcc >> 8) & 0xff,
- (fourcc >> 16) & 0xff,
- (fourcc >> 24) & 0xff);
- } else if (depth) {
- rc = drmModeAddFB(fd, cd.width, cd.height, depth, cd.bpp,
+ } else if (fmt->depth) {
+ rc = drmModeAddFB(fd, cd.width, cd.height, fmt->depth, cd.bpp,
cd.pitch, cd.handle, &fb_id);
- if (rc == 0 && print)
- printf(" bpp %d, depth %d\n", cd.bpp, depth);
} else {
rc = -1;
}
@@ -142,3 +512,12 @@ bool drm_probe_format(int fd, uint32_t bpp, uint32_t depth, uint32_t fourcc, boo
done:
return result;
}
+
+void drm_print_format(FILE *fp, const struct fbformat *fmt)
+{
+ fprintf(fp, " %-8s: [%2d:0] %-14s %-11s %s\n",
+ fmt->name, fmt->bpp - 1, fmt->fields, fmt->bits,
+ fmt->fourcc
+ ? "fourcc (addfb2), little endian"
+ : "legacy (addfb), native endian");
+}
generated by cgit (git 2.34.1) at 2025-02-23 13:11:27 +0000