* found in the LICENSE file.
*/
#include <assert.h>
+#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <stdint.h>
return bo;
}
+struct bo *drv_bo_create_with_modifiers(struct driver *drv,
+ uint32_t width, uint32_t height,
+ uint32_t format,
+ const uint64_t *modifiers, uint32_t count)
+{
+ int ret;
+ size_t plane;
+ struct bo *bo;
+
+ if (!drv->backend->bo_create_with_modifiers) {
+ errno = ENOENT;
+ return NULL;
+ }
+
+ bo = drv_bo_new(drv, width, height, format);
+
+ if (!bo)
+ return NULL;
+
+ ret = drv->backend->bo_create_with_modifiers(bo, width, height,
+ format, modifiers, count);
+
+ if (ret) {
+ free(bo);
+ return NULL;
+ }
+
+ pthread_mutex_lock(&drv->driver_lock);
+
+ for (plane = 0; plane < bo->num_planes; plane++)
+ drv_increment_reference_count(drv, bo, plane);
+
+ pthread_mutex_unlock(&drv->driver_lock);
+
+ return bo;
+}
+
+
void drv_bo_destroy(struct bo *bo)
{
size_t plane;
BO_USE_RENDERING | BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY},
};
+static int afbc_bo_from_format(struct bo *bo, uint32_t width, uint32_t height,
+ uint32_t format)
+{
+ /* We've restricted ourselves to four bytes per pixel. */
+ const uint32_t pixel_size = 4;
+
+ const uint32_t clump_width = 4;
+ const uint32_t clump_height = 4;
+
+#define AFBC_NARROW 1
+#if AFBC_NARROW == 1
+ const uint32_t block_width = 4 * clump_width;
+ const uint32_t block_height = 4 * clump_height;
+#else
+ const uint32_t block_width = 8 * clump_width;
+ const uint32_t block_height = 2 * clump_height;
+#endif
+
+ const uint32_t header_block_size = 16;
+ const uint32_t body_block_size = block_width * block_height * pixel_size;
+ const uint32_t width_in_blocks = DIV_ROUND_UP(width, block_width);
+ const uint32_t height_in_blocks = DIV_ROUND_UP(height, block_height);
+ const uint32_t total_blocks = width_in_blocks * height_in_blocks;
+
+ const uint32_t header_plane_size = total_blocks * header_block_size;
+ const uint32_t body_plane_size = total_blocks * body_block_size;
+
+ /* GPU requires 64 bytes, but EGL import code expects 1024 byte
+ * alignement for the body plane. */
+ const uint32_t body_plane_alignment = 1024;
+
+ const uint32_t body_plane_offset =
+ ALIGN(header_plane_size, body_plane_alignment);
+ const uint32_t total_size =
+ body_plane_offset + body_plane_size;
+
+ bo->strides[0] = width_in_blocks * block_width * pixel_size;
+ bo->sizes[0] = total_size;
+ bo->offsets[0] = 0;
+
+ bo->total_size = total_size;
+
+ bo->format_modifiers[0] = DRM_FORMAT_MOD_CHROMEOS_ROCKCHIP_AFBC;
+
+ return 0;
+}
+
static int rockchip_init(struct driver *drv)
{
drv_insert_combinations(drv, combos, ARRAY_SIZE(combos));
return drv_add_kms_flags(drv);
}
-static int rockchip_bo_create(struct bo *bo, uint32_t width, uint32_t height,
- uint32_t format, uint32_t flags)
+static bool has_modifier(const uint64_t *list, uint32_t count, uint64_t modifier)
+{
+ uint32_t i;
+
+ for (i = 0; i < count; i++)
+ if (list[i] == modifier)
+ return true;
+
+ return false;
+}
+
+static int rockchip_bo_create_with_modifiers(struct bo *bo,
+ uint32_t width, uint32_t height,
+ uint32_t format,
+ const uint64_t *modifiers,
+ uint32_t count)
{
int ret;
size_t plane;
drv_bo_from_format(bo, aligned_width, height, format);
bo->total_size = bo->strides[0] * aligned_height
+ w_mbs * h_mbs * 128;
+ } else if (has_modifier(modifiers, count,
+ DRM_FORMAT_MOD_CHROMEOS_ROCKCHIP_AFBC)) {
+ /* If the caller has decided they can use AFBC, always
+ * pick that */
+ afbc_bo_from_format(bo, width, height, format);
} else {
+ if (!has_modifier(modifiers, count, DRM_FORMAT_MOD_NONE)) {
+ errno = EINVAL;
+ fprintf(stderr, "no usable modifier found\n");
+ return -1;
+ }
drv_bo_from_format(bo, width, height, format);
}
return 0;
}
+static int rockchip_bo_create(struct bo *bo, uint32_t width, uint32_t height,
+ uint32_t format, uint32_t flags)
+{
+ uint64_t modifiers[] = { DRM_FORMAT_MOD_NONE };
+
+ return rockchip_bo_create_with_modifiers(bo, width, height, format,
+ modifiers, ARRAY_SIZE(modifiers));
+}
+
static void *rockchip_bo_map(struct bo *bo, struct map_info *data, size_t plane)
{
int ret;
struct drm_rockchip_gem_map_off gem_map;
+ /* We can only map buffers created with SW access flags, which should
+ * have no modifiers (ie, not AFBC). */
+ if (bo->format_modifiers[0] == DRM_FORMAT_MOD_CHROMEOS_ROCKCHIP_AFBC)
+ return MAP_FAILED;
+
memset(&gem_map, 0, sizeof(gem_map));
gem_map.handle = bo->handles[0].u32;
.name = "rockchip",
.init = rockchip_init,
.bo_create = rockchip_bo_create,
+ .bo_create_with_modifiers = rockchip_bo_create_with_modifiers,
.bo_destroy = drv_gem_bo_destroy,
.bo_map = rockchip_bo_map,
.resolve_format = rockchip_resolve_format,