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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gpu/command_buffer/common/gpu_memory_buffer_support.h"
#include <GLES2/gl2.h>
#include <GLES2/gl2extchromium.h>
#include "base/check.h"
#include "base/containers/contains.h"
#include "base/notreached.h"
#include "build/build_config.h"
#include "gpu/command_buffer/common/capabilities.h"
#include "ui/gfx/buffer_format_util.h"
#include "ui/gfx/geometry/size.h"
namespace gpu {
#if BUILDFLAG(IS_MAC)
static uint32_t macos_specific_texture_target = GL_TEXTURE_RECTANGLE_ARB;
#endif // BUILDFLAG(IS_MAC)
bool IsImageFromGpuMemoryBufferFormatSupported(
gfx::BufferFormat format,
const gpu::Capabilities& capabilities) {
return capabilities.gpu_memory_buffer_formats.Has(format);
}
bool IsImageSizeValidForGpuMemoryBufferFormat(const gfx::Size& size,
gfx::BufferFormat format) {
switch (format) {
case gfx::BufferFormat::R_8:
case gfx::BufferFormat::R_16:
case gfx::BufferFormat::RG_88:
case gfx::BufferFormat::RG_1616:
case gfx::BufferFormat::BGR_565:
case gfx::BufferFormat::RGBA_4444:
case gfx::BufferFormat::RGBA_8888:
case gfx::BufferFormat::RGBX_8888:
case gfx::BufferFormat::BGRA_8888:
case gfx::BufferFormat::BGRX_8888:
case gfx::BufferFormat::BGRA_1010102:
case gfx::BufferFormat::RGBA_1010102:
case gfx::BufferFormat::RGBA_F16:
return true;
case gfx::BufferFormat::YVU_420:
case gfx::BufferFormat::YUV_420_BIPLANAR:
case gfx::BufferFormat::YUVA_420_TRIPLANAR:
case gfx::BufferFormat::P010:
#if BUILDFLAG(IS_CHROMEOS)
// Allow odd size for CrOS.
// TODO(https://crbug.com/1208788, https://crbug.com/1224781): Merge this
// with the path that uses gfx::IsOddHeightMultiPlanarBuffersAllowed.
return true;
#else
// U and V planes are subsampled by a factor of 2.
if (size.width() % 2 && !gfx::IsOddWidthMultiPlanarBuffersAllowed())
return false;
if (size.height() % 2 && !gfx::IsOddHeightMultiPlanarBuffersAllowed())
return false;
return true;
#endif // BUILDFLAG(IS_CHROMEOS)
}
NOTREACHED();
return false;
}
GPU_EXPORT bool IsPlaneValidForGpuMemoryBufferFormat(gfx::BufferPlane plane,
gfx::BufferFormat format) {
#if BUILDFLAG(IS_APPLE) || BUILDFLAG(IS_WIN)
// On Windows, macOS and iOS each plane of a YUV GpuMemoryBuffer must be
// sampled separately.
switch (format) {
case gfx::BufferFormat::YUV_420_BIPLANAR:
case gfx::BufferFormat::P010:
return plane == gfx::BufferPlane::Y || plane == gfx::BufferPlane::UV;
case gfx::BufferFormat::YUVA_420_TRIPLANAR:
return plane == gfx::BufferPlane::Y || plane == gfx::BufferPlane::UV ||
plane == gfx::BufferPlane::A;
case gfx::BufferFormat::YVU_420:
#if BUILDFLAG(IS_APPLE)
// YVU_420 not used on macOS or iOS
return false;
#else
return plane == gfx::BufferPlane::Y || plane == gfx::BufferPlane::U ||
plane == gfx::BufferPlane::V;
#endif
default:
return plane == gfx::BufferPlane::DEFAULT;
}
#else
switch (format) {
case gfx::BufferFormat::YVU_420:
return plane == gfx::BufferPlane::DEFAULT ||
plane == gfx::BufferPlane::Y || plane == gfx::BufferPlane::U ||
plane == gfx::BufferPlane::V;
case gfx::BufferFormat::YUV_420_BIPLANAR:
return plane == gfx::BufferPlane::DEFAULT ||
plane == gfx::BufferPlane::Y || plane == gfx::BufferPlane::UV;
case gfx::BufferFormat::YUVA_420_TRIPLANAR:
return plane == gfx::BufferPlane::Y || plane == gfx::BufferPlane::UV ||
plane == gfx::BufferPlane::A;
default:
return plane == gfx::BufferPlane::DEFAULT;
}
#endif
NOTREACHED();
return false;
}
gfx::BufferFormat GetPlaneBufferFormat(gfx::BufferPlane plane,
gfx::BufferFormat format) {
switch (plane) {
case gfx::BufferPlane::DEFAULT:
return format;
case gfx::BufferPlane::Y:
if (format == gfx::BufferFormat::YVU_420 ||
format == gfx::BufferFormat::YUV_420_BIPLANAR ||
format == gfx::BufferFormat::YUVA_420_TRIPLANAR) {
return gfx::BufferFormat::R_8;
}
if (format == gfx::BufferFormat::P010) {
return gfx::BufferFormat::R_16;
}
break;
case gfx::BufferPlane::UV:
if (format == gfx::BufferFormat::YUV_420_BIPLANAR ||
format == gfx::BufferFormat::YUVA_420_TRIPLANAR)
return gfx::BufferFormat::RG_88;
if (format == gfx::BufferFormat::P010)
return gfx::BufferFormat::RG_1616;
break;
case gfx::BufferPlane::U:
if (format == gfx::BufferFormat::YVU_420)
return gfx::BufferFormat::R_8;
break;
case gfx::BufferPlane::V:
if (format == gfx::BufferFormat::YVU_420)
return gfx::BufferFormat::R_8;
break;
case gfx::BufferPlane::A:
if (format == gfx::BufferFormat::YUVA_420_TRIPLANAR)
return gfx::BufferFormat::R_8;
break;
}
NOTREACHED();
return format;
}
int32_t GetPlaneIndex(gfx::BufferPlane plane, gfx::BufferFormat format) {
switch (plane) {
case gfx::BufferPlane::DEFAULT:
case gfx::BufferPlane::Y:
return 0;
case gfx::BufferPlane::U:
case gfx::BufferPlane::UV:
return 1;
case gfx::BufferPlane::V:
return 2;
case gfx::BufferPlane::A:
return format == gfx::BufferFormat::YUVA_420_TRIPLANAR ? 2 : 3;
}
}
gfx::Size GetPlaneSize(gfx::BufferPlane plane, const gfx::Size& size) {
switch (plane) {
case gfx::BufferPlane::DEFAULT:
case gfx::BufferPlane::Y:
case gfx::BufferPlane::A:
return size;
case gfx::BufferPlane::U:
case gfx::BufferPlane::V:
case gfx::BufferPlane::UV:
return gfx::ScaleToCeiledSize(size, 0.5);
}
}
uint32_t GetPlatformSpecificTextureTarget() {
#if BUILDFLAG(IS_MAC)
return macos_specific_texture_target;
#elif BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_LINUX) || \
BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_WIN)
return GL_TEXTURE_EXTERNAL_OES;
#elif BUILDFLAG(IS_IOS)
return GL_TEXTURE_2D;
#elif BUILDFLAG(IS_FUCHSIA)
// Fuchsia uses Vulkan.
return 0;
#elif BUILDFLAG(IS_NACL)
NOTREACHED();
return 0;
#else
#error Unsupported OS
#endif
}
#if BUILDFLAG(IS_MAC)
GPU_EXPORT void SetMacOSSpecificTextureTarget(uint32_t texture_target) {
DCHECK(texture_target == GL_TEXTURE_2D ||
texture_target == GL_TEXTURE_RECTANGLE_ARB);
macos_specific_texture_target = texture_target;
}
#endif // BUILDFLAG(IS_MAC)
GPU_EXPORT uint32_t GetBufferTextureTarget(gfx::BufferUsage usage,
gfx::BufferFormat format,
const Capabilities& capabilities) {
bool found = base::Contains(capabilities.texture_target_exception_list,
gfx::BufferUsageAndFormat(usage, format));
return found ? gpu::GetPlatformSpecificTextureTarget() : GL_TEXTURE_2D;
}
GPU_EXPORT bool NativeBufferNeedsPlatformSpecificTextureTarget(
gfx::BufferFormat format,
gfx::BufferPlane plane) {
#if BUILDFLAG(IS_OZONE) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || \
BUILDFLAG(IS_WIN)
// Always use GL_TEXTURE_2D as the target for RGB textures.
// https://crbug.com/916728
if (format == gfx::BufferFormat::R_8 || format == gfx::BufferFormat::RG_88 ||
#if BUILDFLAG(IS_CHROMEOS)
format == gfx::BufferFormat::RGBA_F16 ||
#endif
format == gfx::BufferFormat::RGBA_8888 ||
format == gfx::BufferFormat::BGRA_8888 ||
format == gfx::BufferFormat::RGBX_8888 ||
format == gfx::BufferFormat::BGRX_8888 ||
format == gfx::BufferFormat::RGBA_1010102 ||
format == gfx::BufferFormat::BGRA_1010102) {
return false;
}
#if BUILDFLAG(IS_CHROMEOS)
// Use GL_TEXTURE_2D when importing the NV12 DMA-buf as two GL textures, Y
// plane as gfx::BufferFormat::R_8, UV plane as gfx::BufferFormat::RG_88, then
// we can sample and write to NV12 DMA-buf through the two GL textures.
if (format == gfx::BufferFormat::YUV_420_BIPLANAR &&
(plane == gfx::BufferPlane::Y || plane == gfx::BufferPlane::UV)) {
return false;
}
#endif
#elif BUILDFLAG(IS_ANDROID)
if (format == gfx::BufferFormat::BGR_565 ||
format == gfx::BufferFormat::RGBA_8888) {
return false;
}
#endif
return true;
}
} // namespace gpu
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