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/*
* Copyright 2016 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "drv_priv.h"
#include "helpers.h"
#include "util.h"
#define MESA_LLVMPIPE_TILE_ORDER 6
#define MESA_LLVMPIPE_TILE_SIZE (1 << MESA_LLVMPIPE_TILE_ORDER)
static const uint32_t render_target_formats[] = { DRM_FORMAT_ABGR8888, DRM_FORMAT_ARGB8888,
DRM_FORMAT_RGB565, DRM_FORMAT_XBGR8888,
DRM_FORMAT_XRGB8888 };
static const uint32_t texture_source_formats[] = { DRM_FORMAT_R8, DRM_FORMAT_YVU420,
DRM_FORMAT_YVU420_ANDROID };
static int vgem_init(struct driver *drv)
{
int ret;
ret = drv_add_combinations(drv, render_target_formats, ARRAY_SIZE(render_target_formats),
&LINEAR_METADATA, BO_USE_RENDER_MASK);
if (ret)
return ret;
ret = drv_add_combinations(drv, texture_source_formats, ARRAY_SIZE(texture_source_formats),
&LINEAR_METADATA, BO_USE_TEXTURE_MASK);
if (ret)
return ret;
return drv_modify_linear_combinations(drv);
}
static int vgem_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
uint64_t flags)
{
width = ALIGN(width, MESA_LLVMPIPE_TILE_SIZE);
height = ALIGN(height, MESA_LLVMPIPE_TILE_SIZE);
/* HAL_PIXEL_FORMAT_YV12 requires that the buffer's height not be aligned. */
if (bo->format == DRM_FORMAT_YVU420_ANDROID)
height = bo->height;
return drv_dumb_bo_create(bo, width, height, format, flags);
}
static uint32_t vgem_resolve_format(uint32_t format, uint64_t flags)
{
switch (format) {
case DRM_FORMAT_FLEX_IMPLEMENTATION_DEFINED:
/*HACK: See b/28671744 */
return DRM_FORMAT_XBGR8888;
case DRM_FORMAT_FLEX_YCbCr_420_888:
return DRM_FORMAT_YVU420;
default:
return format;
}
}
const struct backend backend_vgem = {
.name = "vgem",
.init = vgem_init,
.bo_create = vgem_bo_create,
.bo_destroy = drv_dumb_bo_destroy,
.bo_import = drv_prime_bo_import,
.bo_map = drv_dumb_bo_map,
.bo_unmap = drv_bo_munmap,
.resolve_format = vgem_resolve_format,
};
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