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