gbm: track buffer format through DRI drivers

GBM needs the buffer format in order to communicate with DRM and clients
for things like scanout.

So track the DRI format requested in the various back ends and use it to
return the DRI format back to GBM when requested.  GBM will then map
this into the GBM surface type (which is in turn based on the DRM fb
format list).

Signed-off-by: Jesse Barnes <[email protected]>

4 files changed, 164 insertions, 5 deletions

diff --git a/src/gbm/backends/dri/gbm_dri.c b/src/gbm/backends/dri/gbm_dri.c
index ddd153a7db4..34f07de4bba 100644
--- a/src/gbm/backends/dri/gbm_dri.c
+++ b/src/gbm/backends/dri/gbm_dri.c
@@ -216,13 +216,15 @@ free_screen:
 
 static int
 gbm_dri_is_format_supported(struct gbm_device *gbm,
-                            enum gbm_bo_format format,
+                            uint32_t format,
                             uint32_t usage)
 {
    switch (format) {
    case GBM_BO_FORMAT_XRGB8888:
+   case GBM_FORMAT_XRGB8888:
       break;
    case GBM_BO_FORMAT_ARGB8888:
+   case GBM_FORMAT_ARGB8888:
       if (usage & GBM_BO_USE_SCANOUT)
          return 0;
       break;
@@ -247,6 +249,32 @@ gbm_dri_bo_destroy(struct gbm_bo *_bo)
    free(bo);
 }
 
+static uint32_t
+gbm_dri_to_gbm_format(uint32_t dri_format)
+{
+   uint32_t ret = 0;
+
+   switch (dri_format) {
+   case __DRI_IMAGE_FORMAT_RGB565:
+      ret = GBM_FORMAT_RGB565;
+      break;
+   case __DRI_IMAGE_FORMAT_XRGB8888:
+      ret = GBM_FORMAT_XRGB8888;
+      break;
+   case __DRI_IMAGE_FORMAT_ARGB8888:
+      ret = GBM_FORMAT_ARGB8888;
+      break;
+   case __DRI_IMAGE_FORMAT_ABGR8888:
+      ret = GBM_FORMAT_ABGR8888;
+      break;
+   default:
+      ret = 0;
+      break;
+   }
+
+   return ret;
+}
+
 static struct gbm_bo *
 gbm_dri_bo_create_from_egl_image(struct gbm_device *gbm,
                                  void *egl_dpy, void *egl_img,
@@ -255,6 +283,7 @@ gbm_dri_bo_create_from_egl_image(struct gbm_device *gbm,
 {
    struct gbm_dri_device *dri = gbm_dri_device(gbm);
    struct gbm_dri_bo *bo;
+   int dri_format;
    unsigned dri_use = 0;
 
    (void) egl_dpy;
@@ -291,6 +320,10 @@ gbm_dri_bo_create_from_egl_image(struct gbm_device *gbm,
                           &bo->base.base.handle.s32);
    dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_STRIDE,
                           (int *) &bo->base.base.pitch);
+   dri->image->queryImage(bo->image, __DRI_IMAGE_ATTRIB_FORMAT,
+			  &dri_format);
+
+   bo->base.base.format = gbm_dri_to_gbm_format(dri_format);
 
    return &bo->base.base;
 }
@@ -298,7 +331,7 @@ gbm_dri_bo_create_from_egl_image(struct gbm_device *gbm,
 static struct gbm_bo *
 gbm_dri_bo_create(struct gbm_device *gbm,
                   uint32_t width, uint32_t height,
-                  enum gbm_bo_format format, uint32_t usage)
+                  uint32_t format, uint32_t usage)
 {
    struct gbm_dri_device *dri = gbm_dri_device(gbm);
    struct gbm_dri_bo *bo;
@@ -314,12 +347,20 @@ gbm_dri_bo_create(struct gbm_device *gbm,
    bo->base.base.height = height;
 
    switch (format) {
+   case GBM_FORMAT_RGB565:
+      dri_format =__DRI_IMAGE_FORMAT_RGB565;
+      break;
+   case GBM_FORMAT_XRGB8888:
    case GBM_BO_FORMAT_XRGB8888:
       dri_format = __DRI_IMAGE_FORMAT_XRGB8888;
       break;
+   case GBM_FORMAT_ARGB8888:
    case GBM_BO_FORMAT_ARGB8888:
       dri_format = __DRI_IMAGE_FORMAT_ARGB8888;
       break;
+   case GBM_FORMAT_ABGR8888:
+      dri_format = __DRI_IMAGE_FORMAT_ABGR8888;
+      break;
    default:
       return NULL;
    }
diff --git a/src/gbm/main/gbm.c b/src/gbm/main/gbm.c
index 03fc52b161a..9459720261f 100644
--- a/src/gbm/main/gbm.c
+++ b/src/gbm/main/gbm.c
@@ -205,6 +205,19 @@ gbm_bo_get_pitch(struct gbm_bo *bo)
    return bo->pitch;
 }
 
+/** Get the format of the buffer object
+ *
+ * The format of the pixels in the buffer.
+ *
+ * \param bo The buffer object
+ * \return The format of buffer object, on of the GBM_FORMAT_* codes
+ */
+GBM_EXPORT uint32_t
+gbm_bo_get_format(struct gbm_bo *bo)
+{
+   return bo->format;
+}
+
 /** Get the handle of the buffer object
  *
  * This is stored in the platform generic union gbm_bo_handle type. However
diff --git a/src/gbm/main/gbm.h b/src/gbm/main/gbm.h
index c4ae51db022..ecebf11f7b9 100644
--- a/src/gbm/main/gbm.h
+++ b/src/gbm/main/gbm.h
@@ -75,6 +75,108 @@ enum gbm_bo_format {
    GBM_BO_FORMAT_ARGB8888
 };
 
+#define __gbm_fourcc_code(a,b,c,d) ((uint32_t)(a) | ((uint32_t)(b) << 8) | \
+			      ((uint32_t)(c) << 16) | ((uint32_t)(d) << 24))
+
+#define GBM_FORMAT_BIG_ENDIAN (1<<31) /* format is big endian instead of little endian */
+
+/* color index */
+#define GBM_FORMAT_C8		__gbm_fourcc_code('C', '8', ' ', ' ') /* [7:0] C */
+
+/* 8 bpp RGB */
+#define GBM_FORMAT_RGB332	__gbm_fourcc_code('R', 'G', 'B', '8') /* [7:0] R:G:B 3:3:2 */
+#define GBM_FORMAT_BGR233	__gbm_fourcc_code('B', 'G', 'R', '8') /* [7:0] B:G:R 2:3:3 */
+
+/* 16 bpp RGB */
+#define GBM_FORMAT_XRGB4444	__gbm_fourcc_code('X', 'R', '1', '2') /* [15:0] x:R:G:B 4:4:4:4 little endian */
+#define GBM_FORMAT_XBGR4444	__gbm_fourcc_code('X', 'B', '1', '2') /* [15:0] x:B:G:R 4:4:4:4 little endian */
+#define GBM_FORMAT_RGBX4444	__gbm_fourcc_code('R', 'X', '1', '2') /* [15:0] R:G:B:x 4:4:4:4 little endian */
+#define GBM_FORMAT_BGRX4444	__gbm_fourcc_code('B', 'X', '1', '2') /* [15:0] B:G:R:x 4:4:4:4 little endian */
+
+#define GBM_FORMAT_ARGB4444	__gbm_fourcc_code('A', 'R', '1', '2') /* [15:0] A:R:G:B 4:4:4:4 little endian */
+#define GBM_FORMAT_ABGR4444	__gbm_fourcc_code('A', 'B', '1', '2') /* [15:0] A:B:G:R 4:4:4:4 little endian */
+#define GBM_FORMAT_RGBA4444	__gbm_fourcc_code('R', 'A', '1', '2') /* [15:0] R:G:B:A 4:4:4:4 little endian */
+#define GBM_FORMAT_BGRA4444	__gbm_fourcc_code('B', 'A', '1', '2') /* [15:0] B:G:R:A 4:4:4:4 little endian */
+
+#define GBM_FORMAT_XRGB1555	__gbm_fourcc_code('X', 'R', '1', '5') /* [15:0] x:R:G:B 1:5:5:5 little endian */
+#define GBM_FORMAT_XBGR1555	__gbm_fourcc_code('X', 'B', '1', '5') /* [15:0] x:B:G:R 1:5:5:5 little endian */
+#define GBM_FORMAT_RGBX5551	__gbm_fourcc_code('R', 'X', '1', '5') /* [15:0] R:G:B:x 5:5:5:1 little endian */
+#define GBM_FORMAT_BGRX5551	__gbm_fourcc_code('B', 'X', '1', '5') /* [15:0] B:G:R:x 5:5:5:1 little endian */
+
+#define GBM_FORMAT_ARGB1555	__gbm_fourcc_code('A', 'R', '1', '5') /* [15:0] A:R:G:B 1:5:5:5 little endian */
+#define GBM_FORMAT_ABGR1555	__gbm_fourcc_code('A', 'B', '1', '5') /* [15:0] A:B:G:R 1:5:5:5 little endian */
+#define GBM_FORMAT_RGBA5551	__gbm_fourcc_code('R', 'A', '1', '5') /* [15:0] R:G:B:A 5:5:5:1 little endian */
+#define GBM_FORMAT_BGRA5551	__gbm_fourcc_code('B', 'A', '1', '5') /* [15:0] B:G:R:A 5:5:5:1 little endian */
+
+#define GBM_FORMAT_RGB565	__gbm_fourcc_code('R', 'G', '1', '6') /* [15:0] R:G:B 5:6:5 little endian */
+#define GBM_FORMAT_BGR565	__gbm_fourcc_code('B', 'G', '1', '6') /* [15:0] B:G:R 5:6:5 little endian */
+
+/* 24 bpp RGB */
+#define GBM_FORMAT_RGB888	__gbm_fourcc_code('R', 'G', '2', '4') /* [23:0] R:G:B little endian */
+#define GBM_FORMAT_BGR888	__gbm_fourcc_code('B', 'G', '2', '4') /* [23:0] B:G:R little endian */
+
+/* 32 bpp RGB */
+#define GBM_FORMAT_XRGB8888	__gbm_fourcc_code('X', 'R', '2', '4') /* [31:0] x:R:G:B 8:8:8:8 little endian */
+#define GBM_FORMAT_XBGR8888	__gbm_fourcc_code('X', 'B', '2', '4') /* [31:0] x:B:G:R 8:8:8:8 little endian */
+#define GBM_FORMAT_RGBX8888	__gbm_fourcc_code('R', 'X', '2', '4') /* [31:0] R:G:B:x 8:8:8:8 little endian */
+#define GBM_FORMAT_BGRX8888	__gbm_fourcc_code('B', 'X', '2', '4') /* [31:0] B:G:R:x 8:8:8:8 little endian */
+
+#define GBM_FORMAT_ARGB8888	__gbm_fourcc_code('A', 'R', '2', '4') /* [31:0] A:R:G:B 8:8:8:8 little endian */
+#define GBM_FORMAT_ABGR8888	__gbm_fourcc_code('A', 'B', '2', '4') /* [31:0] A:B:G:R 8:8:8:8 little endian */
+#define GBM_FORMAT_RGBA8888	__gbm_fourcc_code('R', 'A', '2', '4') /* [31:0] R:G:B:A 8:8:8:8 little endian */
+#define GBM_FORMAT_BGRA8888	__gbm_fourcc_code('B', 'A', '2', '4') /* [31:0] B:G:R:A 8:8:8:8 little endian */
+
+#define GBM_FORMAT_XRGB2101010	__gbm_fourcc_code('X', 'R', '3', '0') /* [31:0] x:R:G:B 2:10:10:10 little endian */
+#define GBM_FORMAT_XBGR2101010	__gbm_fourcc_code('X', 'B', '3', '0') /* [31:0] x:B:G:R 2:10:10:10 little endian */
+#define GBM_FORMAT_RGBX1010102	__gbm_fourcc_code('R', 'X', '3', '0') /* [31:0] R:G:B:x 10:10:10:2 little endian */
+#define GBM_FORMAT_BGRX1010102	__gbm_fourcc_code('B', 'X', '3', '0') /* [31:0] B:G:R:x 10:10:10:2 little endian */
+
+#define GBM_FORMAT_ARGB2101010	__gbm_fourcc_code('A', 'R', '3', '0') /* [31:0] A:R:G:B 2:10:10:10 little endian */
+#define GBM_FORMAT_ABGR2101010	__gbm_fourcc_code('A', 'B', '3', '0') /* [31:0] A:B:G:R 2:10:10:10 little endian */
+#define GBM_FORMAT_RGBA1010102	__gbm_fourcc_code('R', 'A', '3', '0') /* [31:0] R:G:B:A 10:10:10:2 little endian */
+#define GBM_FORMAT_BGRA1010102	__gbm_fourcc_code('B', 'A', '3', '0') /* [31:0] B:G:R:A 10:10:10:2 little endian */
+
+/* packed YCbCr */
+#define GBM_FORMAT_YUYV		__gbm_fourcc_code('Y', 'U', 'Y', 'V') /* [31:0] Cr0:Y1:Cb0:Y0 8:8:8:8 little endian */
+#define GBM_FORMAT_YVYU		__gbm_fourcc_code('Y', 'V', 'Y', 'U') /* [31:0] Cb0:Y1:Cr0:Y0 8:8:8:8 little endian */
+#define GBM_FORMAT_UYVY		__gbm_fourcc_code('U', 'Y', 'V', 'Y') /* [31:0] Y1:Cr0:Y0:Cb0 8:8:8:8 little endian */
+#define GBM_FORMAT_VYUY		__gbm_fourcc_code('V', 'Y', 'U', 'Y') /* [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian */
+
+#define GBM_FORMAT_AYUV		__gbm_fourcc_code('A', 'Y', 'U', 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */
+
+/*
+ * 2 plane YCbCr
+ * index 0 = Y plane, [7:0] Y
+ * index 1 = Cr:Cb plane, [15:0] Cr:Cb little endian
+ * or
+ * index 1 = Cb:Cr plane, [15:0] Cb:Cr little endian
+ */
+#define GBM_FORMAT_NV12		__gbm_fourcc_code('N', 'V', '1', '2') /* 2x2 subsampled Cr:Cb plane */
+#define GBM_FORMAT_NV21		__gbm_fourcc_code('N', 'V', '2', '1') /* 2x2 subsampled Cb:Cr plane */
+#define GBM_FORMAT_NV16		__gbm_fourcc_code('N', 'V', '1', '6') /* 2x1 subsampled Cr:Cb plane */
+#define GBM_FORMAT_NV61		__gbm_fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */
+
+/*
+ * 3 plane YCbCr
+ * index 0: Y plane, [7:0] Y
+ * index 1: Cb plane, [7:0] Cb
+ * index 2: Cr plane, [7:0] Cr
+ * or
+ * index 1: Cr plane, [7:0] Cr
+ * index 2: Cb plane, [7:0] Cb
+ */
+#define GBM_FORMAT_YUV410	__gbm_fourcc_code('Y', 'U', 'V', '9') /* 4x4 subsampled Cb (1) and Cr (2) planes */
+#define GBM_FORMAT_YVU410	__gbm_fourcc_code('Y', 'V', 'U', '9') /* 4x4 subsampled Cr (1) and Cb (2) planes */
+#define GBM_FORMAT_YUV411	__gbm_fourcc_code('Y', 'U', '1', '1') /* 4x1 subsampled Cb (1) and Cr (2) planes */
+#define GBM_FORMAT_YVU411	__gbm_fourcc_code('Y', 'V', '1', '1') /* 4x1 subsampled Cr (1) and Cb (2) planes */
+#define GBM_FORMAT_YUV420	__gbm_fourcc_code('Y', 'U', '1', '2') /* 2x2 subsampled Cb (1) and Cr (2) planes */
+#define GBM_FORMAT_YVU420	__gbm_fourcc_code('Y', 'V', '1', '2') /* 2x2 subsampled Cr (1) and Cb (2) planes */
+#define GBM_FORMAT_YUV422	__gbm_fourcc_code('Y', 'U', '1', '6') /* 2x1 subsampled Cb (1) and Cr (2) planes */
+#define GBM_FORMAT_YVU422	__gbm_fourcc_code('Y', 'V', '1', '6') /* 2x1 subsampled Cr (1) and Cb (2) planes */
+#define GBM_FORMAT_YUV444	__gbm_fourcc_code('Y', 'U', '2', '4') /* non-subsampled Cb (1) and Cr (2) planes */
+#define GBM_FORMAT_YVU444	__gbm_fourcc_code('Y', 'V', '2', '4') /* non-subsampled Cr (1) and Cb (2) planes */
+
+
 /**
  * Flags to indicate the intended use for the buffer - these are passed into
  * gbm_bo_create(). The caller must set the union of all the flags that are
@@ -108,8 +210,7 @@ gbm_device_get_backend_name(struct gbm_device *gbm);
 
 int
 gbm_device_is_format_supported(struct gbm_device *gbm,
-                               enum gbm_bo_format format,
-                               uint32_t usage);
+                               uint32_t format, uint32_t usage);
 
 void
 gbm_device_destroy(struct gbm_device *gbm);
@@ -120,7 +221,7 @@ gbm_create_device(int fd);
 struct gbm_bo *
 gbm_bo_create(struct gbm_device *gbm,
               uint32_t width, uint32_t height,
-              enum gbm_bo_format format, uint32_t flags);
+              uint32_t format, uint32_t flags);
 
 struct gbm_bo *
 gbm_bo_create_from_egl_image(struct gbm_device *gbm,
@@ -137,6 +238,9 @@ gbm_bo_get_height(struct gbm_bo *bo);
 uint32_t
 gbm_bo_get_pitch(struct gbm_bo *bo);
 
+uint32_t
+gbm_bo_get_format(struct gbm_bo *bo);
+
 union gbm_bo_handle
 gbm_bo_get_handle(struct gbm_bo *bo);
 
diff --git a/src/gbm/main/gbmint.h b/src/gbm/main/gbmint.h
index 9e4072ef6ea..66c4c41cf8e 100644
--- a/src/gbm/main/gbmint.h
+++ b/src/gbm/main/gbmint.h
@@ -83,6 +83,7 @@ struct gbm_bo {
    uint32_t width;
    uint32_t height;
    uint32_t pitch;
+   uint32_t format;
    union gbm_bo_handle  handle;
 };