| // |
| // Copyright 2021 The ANGLE Project Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| |
| // dma_buf_utils.cpp: Utilities to interact with Linux dma bufs. |
| |
| #include "dma_buf_utils.h" |
| |
| #include "common/debug.h" |
| |
| #include <sys/stat.h> |
| #include <sys/time.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| |
| #include <array> |
| |
| // Refer to: |
| // https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/include/uapi/drm/drm_fourcc.h |
| // https://source.chromium.org/chromium/chromium/src/+/main:ui/gl/gl_image_native_pixmap.cc;l=24 |
| #define FOURCC(a, b, c, d) \ |
| ((static_cast<uint32_t>(a)) | (static_cast<uint32_t>(b) << 8) | \ |
| (static_cast<uint32_t>(c) << 16) | (static_cast<uint32_t>(d) << 24)) |
| |
| #define DRM_FORMAT_R8 FOURCC('R', '8', ' ', ' ') |
| #define DRM_FORMAT_R16 FOURCC('R', '1', '6', ' ') |
| #define DRM_FORMAT_GR88 FOURCC('G', 'R', '8', '8') |
| #define DRM_FORMAT_RGB565 FOURCC('R', 'G', '1', '6') |
| #define DRM_FORMAT_RGB888 FOURCC('R', 'G', '2', '4') |
| #define DRM_FORMAT_BGR888 FOURCC('B', 'G', '2', '4') |
| #define DRM_FORMAT_ARGB8888 FOURCC('A', 'R', '2', '4') |
| #define DRM_FORMAT_ABGR8888 FOURCC('A', 'B', '2', '4') |
| #define DRM_FORMAT_XRGB8888 FOURCC('X', 'R', '2', '4') |
| #define DRM_FORMAT_XBGR8888 FOURCC('X', 'B', '2', '4') |
| #define DRM_FORMAT_ABGR2101010 FOURCC('A', 'B', '3', '0') |
| #define DRM_FORMAT_ARGB2101010 FOURCC('A', 'R', '3', '0') |
| #define DRM_FORMAT_YVU420 FOURCC('Y', 'V', '1', '2') |
| #define DRM_FORMAT_NV12 FOURCC('N', 'V', '1', '2') |
| #define DRM_FORMAT_P010 FOURCC('P', '0', '1', '0') |
| |
| namespace angle |
| { |
| GLenum DrmFourCCFormatToGLInternalFormat(int fourccFormat, bool *isYUV) |
| { |
| *isYUV = false; |
| |
| switch (fourccFormat) |
| { |
| case DRM_FORMAT_R8: |
| return GL_R8; |
| case DRM_FORMAT_R16: |
| return GL_R16_EXT; |
| case DRM_FORMAT_GR88: |
| return GL_RG8_EXT; |
| case DRM_FORMAT_ABGR8888: |
| return GL_RGBA8; |
| case DRM_FORMAT_XBGR8888: |
| return GL_RGB8; |
| case DRM_FORMAT_ARGB8888: |
| return GL_BGRA8_EXT; |
| case DRM_FORMAT_XRGB8888: |
| return GL_RGB8; |
| case DRM_FORMAT_ABGR2101010: |
| case DRM_FORMAT_ARGB2101010: |
| return GL_RGB10_A2_EXT; |
| case DRM_FORMAT_RGB565: |
| return GL_RGB565; |
| case DRM_FORMAT_NV12: |
| case DRM_FORMAT_YVU420: |
| case DRM_FORMAT_P010: |
| *isYUV = true; |
| return GL_RGB8; |
| default: |
| UNREACHABLE(); |
| WARN() << "Unknown dma_buf format " << fourccFormat |
| << " used to initialize an EGL image."; |
| return GL_RGB8; |
| } |
| } |
| |
| #if defined(ANGLE_ENABLE_VULKAN) |
| std::vector<int> VkFormatToDrmFourCCFormat(VkFormat format) |
| { |
| switch (format) |
| { |
| case VK_FORMAT_R8_UNORM: |
| case VK_FORMAT_R8_SRGB: |
| return {DRM_FORMAT_R8}; |
| case VK_FORMAT_R16_UNORM: |
| return {DRM_FORMAT_R16}; |
| case VK_FORMAT_R8G8_UNORM: |
| case VK_FORMAT_R8G8_SRGB: |
| return {DRM_FORMAT_GR88}; |
| case VK_FORMAT_R8G8B8_UNORM: |
| case VK_FORMAT_R8G8B8_SRGB: |
| return {DRM_FORMAT_BGR888}; |
| case VK_FORMAT_B8G8R8_UNORM: |
| case VK_FORMAT_B8G8R8_SRGB: |
| return {DRM_FORMAT_RGB888}; |
| case VK_FORMAT_R8G8B8A8_UNORM: |
| case VK_FORMAT_R8G8B8A8_SRGB: |
| return {DRM_FORMAT_ABGR8888, DRM_FORMAT_XBGR8888}; |
| case VK_FORMAT_B8G8R8A8_UNORM: |
| case VK_FORMAT_B8G8R8A8_SRGB: |
| return {DRM_FORMAT_ARGB8888, DRM_FORMAT_XRGB8888}; |
| case VK_FORMAT_A2B10G10R10_UNORM_PACK32: |
| return {DRM_FORMAT_ARGB2101010}; |
| case VK_FORMAT_A2R10G10B10_UNORM_PACK32: |
| return {DRM_FORMAT_ABGR2101010}; |
| case VK_FORMAT_B5G6R5_UNORM_PACK16: |
| return {DRM_FORMAT_RGB565}; |
| default: |
| return {}; |
| } |
| } |
| |
| std::vector<VkFormat> DrmFourCCFormatToVkFormats(int fourccFormat) |
| { |
| switch (fourccFormat) |
| { |
| case DRM_FORMAT_R8: |
| return {VK_FORMAT_R8_SRGB, VK_FORMAT_R8_UNORM}; |
| case DRM_FORMAT_R16: |
| return {VK_FORMAT_R16_UNORM}; |
| case DRM_FORMAT_GR88: |
| return {VK_FORMAT_R8G8_SRGB, VK_FORMAT_R8G8_UNORM}; |
| case DRM_FORMAT_BGR888: |
| return {VK_FORMAT_R8G8B8_SRGB, VK_FORMAT_R8G8B8_UNORM}; |
| case DRM_FORMAT_RGB888: |
| return {VK_FORMAT_B8G8R8_SRGB, VK_FORMAT_B8G8R8_UNORM}; |
| case DRM_FORMAT_ABGR8888: |
| case DRM_FORMAT_XBGR8888: |
| return {VK_FORMAT_R8G8B8A8_SRGB, VK_FORMAT_R8G8B8A8_UNORM}; |
| case DRM_FORMAT_ARGB8888: |
| case DRM_FORMAT_XRGB8888: |
| return {VK_FORMAT_B8G8R8A8_SRGB, VK_FORMAT_B8G8R8A8_UNORM}; |
| case DRM_FORMAT_ABGR2101010: |
| return {VK_FORMAT_A2R10G10B10_UNORM_PACK32}; |
| case DRM_FORMAT_ARGB2101010: |
| return {VK_FORMAT_A2B10G10R10_UNORM_PACK32}; |
| case DRM_FORMAT_RGB565: |
| return {VK_FORMAT_B5G6R5_UNORM_PACK16}; |
| default: |
| WARN() << "Unknown dma_buf format " << fourccFormat |
| << " used to initialize an EGL image."; |
| return {}; |
| } |
| } |
| #endif // ANGLE_ENABLE_VULKAN |
| |
| } // namespace angle |