From 6613327a9c3e5db5928060b246db76914642ec37 Mon Sep 17 00:00:00 2001 From: Roman Gilg Date: Mon, 1 Jul 2019 01:13:26 +0200 Subject: [PATCH] [wayland] Add support for zwp_linux_dmabuf Summary: This adds support for LinuxDmabufUnstableV1Interface in kwin. Test Plan: Session starts. `weston-simple-dmabuf-egl` and `weston-simple-dmabuf-drm` execute without errors. Reviewers: #kwin, #plasma, davidedmundson, mart, graesslin, fredrik Subscribers: meven, zzag, romangg, anthonyfieroni, plasma-devel, kwin Tags: #kwin Maniphest Tasks: T8067 Differential Revision: https://phabricator.kde.org/D10750 --- platformsupport/scenes/opengl/CMakeLists.txt | 1 + .../scenes/opengl/abstract_egl_backend.cpp | 58 +- .../scenes/opengl/abstract_egl_backend.h | 1 + platformsupport/scenes/opengl/drm_fourcc.h | 414 ++++++++++++++ .../scenes/opengl/linux_dmabuf.cpp | 504 ++++++++++++++++++ platformsupport/scenes/opengl/linux_dmabuf.h | 111 ++++ 6 files changed, 1085 insertions(+), 4 deletions(-) create mode 100644 platformsupport/scenes/opengl/drm_fourcc.h create mode 100644 platformsupport/scenes/opengl/linux_dmabuf.cpp create mode 100644 platformsupport/scenes/opengl/linux_dmabuf.h diff --git a/platformsupport/scenes/opengl/CMakeLists.txt b/platformsupport/scenes/opengl/CMakeLists.txt index a8da72a905..c6a6e4ba03 100644 --- a/platformsupport/scenes/opengl/CMakeLists.txt +++ b/platformsupport/scenes/opengl/CMakeLists.txt @@ -1,6 +1,7 @@ set(SCENE_OPENGL_BACKEND_SRCS abstract_egl_backend.cpp backend.cpp + linux_dmabuf.cpp swap_profiler.cpp texture.cpp ) diff --git a/platformsupport/scenes/opengl/abstract_egl_backend.cpp b/platformsupport/scenes/opengl/abstract_egl_backend.cpp index 44a5cdf260..46feafa35d 100644 --- a/platformsupport/scenes/opengl/abstract_egl_backend.cpp +++ b/platformsupport/scenes/opengl/abstract_egl_backend.cpp @@ -18,6 +18,7 @@ You should have received a copy of the GNU General Public License along with this program. If not, see . *********************************************************************/ #include "abstract_egl_backend.h" +#include "linux_dmabuf.h" #include "texture.h" #include "composite.h" #include "egl_context_attribute_builder.h" @@ -169,6 +170,8 @@ void AbstractEglBackend::initWayland() } } } + + LinuxDmabuf::factory(this); } void AbstractEglBackend::initClientExtensions() @@ -352,11 +355,12 @@ bool AbstractEglTexture::loadTexture(WindowPixmap *pixmap) if (auto s = pixmap->surface()) { s->resetTrackedDamage(); } - if (buffer->shmBuffer()) { + if (buffer->linuxDmabufBuffer()) { + return loadDmabufTexture(buffer); + } else if (buffer->shmBuffer()) { return loadShmTexture(buffer); - } else { - return loadEglTexture(buffer); } + return loadEglTexture(buffer); } void AbstractEglTexture::updateTexture(WindowPixmap *pixmap) @@ -373,12 +377,34 @@ void AbstractEglTexture::updateTexture(WindowPixmap *pixmap) return; } auto s = pixmap->surface(); + if (DmabufBuffer *dmabuf = static_cast(buffer->linuxDmabufBuffer())) { + q->bind(); + glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES) dmabuf->images()[0]); //TODO + q->unbind(); + if (m_image != EGL_NO_IMAGE_KHR) { + eglDestroyImageKHR(m_backend->eglDisplay(), m_image); + } + m_image = EGL_NO_IMAGE_KHR; // The wl_buffer has ownership of the image + // The origin in a dmabuf-buffer is at the upper-left corner, so the meaning + // of Y-inverted is the inverse of OpenGL. + const bool yInverted = !(dmabuf->flags() & KWayland::Server::LinuxDmabufUnstableV1Interface::YInverted); + if (m_size != dmabuf->size() || yInverted != q->isYInverted()) { + m_size = dmabuf->size(); + q->setYInverted(yInverted); + } + if (s) { + s->resetTrackedDamage(); + } + return; + } if (!buffer->shmBuffer()) { q->bind(); EGLImageKHR image = attach(buffer); q->unbind(); if (image != EGL_NO_IMAGE_KHR) { - eglDestroyImageKHR(m_backend->eglDisplay(), m_image); + if (m_image != EGL_NO_IMAGE_KHR) { + eglDestroyImageKHR(m_backend->eglDisplay(), m_image); + } m_image = image; } if (s) { @@ -504,6 +530,30 @@ bool AbstractEglTexture::loadEglTexture(const QPointer< KWayland::Server::Buffer return true; } +bool AbstractEglTexture::loadDmabufTexture(const QPointer< KWayland::Server::BufferInterface > &buffer) +{ + DmabufBuffer *dmabuf = static_cast(buffer->linuxDmabufBuffer()); + if (!dmabuf || dmabuf->images()[0] == EGL_NO_IMAGE_KHR) { + qCritical(KWIN_OPENGL) << "Invalid dmabuf-based wl_buffer"; + q->discard(); + return false; + } + + assert(m_image == EGL_NO_IMAGE_KHR); + + glGenTextures(1, &m_texture); + q->setWrapMode(GL_CLAMP_TO_EDGE); + q->setFilter(GL_NEAREST); + q->bind(); + glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES) dmabuf->images()[0]); + q->unbind(); + + m_size = dmabuf->size(); + q->setYInverted(!(dmabuf->flags() & KWayland::Server::LinuxDmabufUnstableV1Interface::YInverted)); + + return true; +} + EGLImageKHR AbstractEglTexture::attach(const QPointer< KWayland::Server::BufferInterface > &buffer) { EGLint format, yInverted; diff --git a/platformsupport/scenes/opengl/abstract_egl_backend.h b/platformsupport/scenes/opengl/abstract_egl_backend.h index a8dd1119c9..18232fd045 100644 --- a/platformsupport/scenes/opengl/abstract_egl_backend.h +++ b/platformsupport/scenes/opengl/abstract_egl_backend.h @@ -110,6 +110,7 @@ protected: private: bool loadShmTexture(const QPointer &buffer); bool loadEglTexture(const QPointer &buffer); + bool loadDmabufTexture(const QPointer< KWayland::Server::BufferInterface > &buffer); EGLImageKHR attach(const QPointer &buffer); bool updateFromFBO(const QSharedPointer &fbo); SceneOpenGLTexture *q; diff --git a/platformsupport/scenes/opengl/drm_fourcc.h b/platformsupport/scenes/opengl/drm_fourcc.h new file mode 100644 index 0000000000..70d492a351 --- /dev/null +++ b/platformsupport/scenes/opengl/drm_fourcc.h @@ -0,0 +1,414 @@ +/* + * Copyright 2011 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef DRM_FOURCC_H +#define DRM_FOURCC_H + +//#include "drm.h" + +// These typedefs are copied from drm.h +typedef uint32_t __u32; +typedef uint64_t __u64; + +#if defined(__cplusplus) +extern "C" { +#endif + +#define fourcc_code(a, b, c, d) ((__u32)(a) | ((__u32)(b) << 8) | \ + ((__u32)(c) << 16) | ((__u32)(d) << 24)) + +#define DRM_FORMAT_BIG_ENDIAN (1<<31) /* format is big endian instead of little endian */ + +/* color index */ +#define DRM_FORMAT_C8 fourcc_code('C', '8', ' ', ' ') /* [7:0] C */ + +/* 8 bpp Red */ +#define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */ + +/* 16 bpp Red */ +#define DRM_FORMAT_R16 fourcc_code('R', '1', '6', ' ') /* [15:0] R little endian */ + +/* 16 bpp RG */ +#define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */ +#define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */ + +/* 32 bpp RG */ +#define DRM_FORMAT_RG1616 fourcc_code('R', 'G', '3', '2') /* [31:0] R:G 16:16 little endian */ +#define DRM_FORMAT_GR1616 fourcc_code('G', 'R', '3', '2') /* [31:0] G:R 16:16 little endian */ + +/* 8 bpp RGB */ +#define DRM_FORMAT_RGB332 fourcc_code('R', 'G', 'B', '8') /* [7:0] R:G:B 3:3:2 */ +#define DRM_FORMAT_BGR233 fourcc_code('B', 'G', 'R', '8') /* [7:0] B:G:R 2:3:3 */ + +/* 16 bpp RGB */ +#define DRM_FORMAT_XRGB4444 fourcc_code('X', 'R', '1', '2') /* [15:0] x:R:G:B 4:4:4:4 little endian */ +#define DRM_FORMAT_XBGR4444 fourcc_code('X', 'B', '1', '2') /* [15:0] x:B:G:R 4:4:4:4 little endian */ +#define DRM_FORMAT_RGBX4444 fourcc_code('R', 'X', '1', '2') /* [15:0] R:G:B:x 4:4:4:4 little endian */ +#define DRM_FORMAT_BGRX4444 fourcc_code('B', 'X', '1', '2') /* [15:0] B:G:R:x 4:4:4:4 little endian */ + +#define DRM_FORMAT_ARGB4444 fourcc_code('A', 'R', '1', '2') /* [15:0] A:R:G:B 4:4:4:4 little endian */ +#define DRM_FORMAT_ABGR4444 fourcc_code('A', 'B', '1', '2') /* [15:0] A:B:G:R 4:4:4:4 little endian */ +#define DRM_FORMAT_RGBA4444 fourcc_code('R', 'A', '1', '2') /* [15:0] R:G:B:A 4:4:4:4 little endian */ +#define DRM_FORMAT_BGRA4444 fourcc_code('B', 'A', '1', '2') /* [15:0] B:G:R:A 4:4:4:4 little endian */ + +#define DRM_FORMAT_XRGB1555 fourcc_code('X', 'R', '1', '5') /* [15:0] x:R:G:B 1:5:5:5 little endian */ +#define DRM_FORMAT_XBGR1555 fourcc_code('X', 'B', '1', '5') /* [15:0] x:B:G:R 1:5:5:5 little endian */ +#define DRM_FORMAT_RGBX5551 fourcc_code('R', 'X', '1', '5') /* [15:0] R:G:B:x 5:5:5:1 little endian */ +#define DRM_FORMAT_BGRX5551 fourcc_code('B', 'X', '1', '5') /* [15:0] B:G:R:x 5:5:5:1 little endian */ + +#define DRM_FORMAT_ARGB1555 fourcc_code('A', 'R', '1', '5') /* [15:0] A:R:G:B 1:5:5:5 little endian */ +#define DRM_FORMAT_ABGR1555 fourcc_code('A', 'B', '1', '5') /* [15:0] A:B:G:R 1:5:5:5 little endian */ +#define DRM_FORMAT_RGBA5551 fourcc_code('R', 'A', '1', '5') /* [15:0] R:G:B:A 5:5:5:1 little endian */ +#define DRM_FORMAT_BGRA5551 fourcc_code('B', 'A', '1', '5') /* [15:0] B:G:R:A 5:5:5:1 little endian */ + +#define DRM_FORMAT_RGB565 fourcc_code('R', 'G', '1', '6') /* [15:0] R:G:B 5:6:5 little endian */ +#define DRM_FORMAT_BGR565 fourcc_code('B', 'G', '1', '6') /* [15:0] B:G:R 5:6:5 little endian */ + +/* 24 bpp RGB */ +#define DRM_FORMAT_RGB888 fourcc_code('R', 'G', '2', '4') /* [23:0] R:G:B little endian */ +#define DRM_FORMAT_BGR888 fourcc_code('B', 'G', '2', '4') /* [23:0] B:G:R little endian */ + +/* 32 bpp RGB */ +#define DRM_FORMAT_XRGB8888 fourcc_code('X', 'R', '2', '4') /* [31:0] x:R:G:B 8:8:8:8 little endian */ +#define DRM_FORMAT_XBGR8888 fourcc_code('X', 'B', '2', '4') /* [31:0] x:B:G:R 8:8:8:8 little endian */ +#define DRM_FORMAT_RGBX8888 fourcc_code('R', 'X', '2', '4') /* [31:0] R:G:B:x 8:8:8:8 little endian */ +#define DRM_FORMAT_BGRX8888 fourcc_code('B', 'X', '2', '4') /* [31:0] B:G:R:x 8:8:8:8 little endian */ + +#define DRM_FORMAT_ARGB8888 fourcc_code('A', 'R', '2', '4') /* [31:0] A:R:G:B 8:8:8:8 little endian */ +#define DRM_FORMAT_ABGR8888 fourcc_code('A', 'B', '2', '4') /* [31:0] A:B:G:R 8:8:8:8 little endian */ +#define DRM_FORMAT_RGBA8888 fourcc_code('R', 'A', '2', '4') /* [31:0] R:G:B:A 8:8:8:8 little endian */ +#define DRM_FORMAT_BGRA8888 fourcc_code('B', 'A', '2', '4') /* [31:0] B:G:R:A 8:8:8:8 little endian */ + +#define DRM_FORMAT_XRGB2101010 fourcc_code('X', 'R', '3', '0') /* [31:0] x:R:G:B 2:10:10:10 little endian */ +#define DRM_FORMAT_XBGR2101010 fourcc_code('X', 'B', '3', '0') /* [31:0] x:B:G:R 2:10:10:10 little endian */ +#define DRM_FORMAT_RGBX1010102 fourcc_code('R', 'X', '3', '0') /* [31:0] R:G:B:x 10:10:10:2 little endian */ +#define DRM_FORMAT_BGRX1010102 fourcc_code('B', 'X', '3', '0') /* [31:0] B:G:R:x 10:10:10:2 little endian */ + +#define DRM_FORMAT_ARGB2101010 fourcc_code('A', 'R', '3', '0') /* [31:0] A:R:G:B 2:10:10:10 little endian */ +#define DRM_FORMAT_ABGR2101010 fourcc_code('A', 'B', '3', '0') /* [31:0] A:B:G:R 2:10:10:10 little endian */ +#define DRM_FORMAT_RGBA1010102 fourcc_code('R', 'A', '3', '0') /* [31:0] R:G:B:A 10:10:10:2 little endian */ +#define DRM_FORMAT_BGRA1010102 fourcc_code('B', 'A', '3', '0') /* [31:0] B:G:R:A 10:10:10:2 little endian */ + +/* packed YCbCr */ +#define DRM_FORMAT_YUYV fourcc_code('Y', 'U', 'Y', 'V') /* [31:0] Cr0:Y1:Cb0:Y0 8:8:8:8 little endian */ +#define DRM_FORMAT_YVYU fourcc_code('Y', 'V', 'Y', 'U') /* [31:0] Cb0:Y1:Cr0:Y0 8:8:8:8 little endian */ +#define DRM_FORMAT_UYVY fourcc_code('U', 'Y', 'V', 'Y') /* [31:0] Y1:Cr0:Y0:Cb0 8:8:8:8 little endian */ +#define DRM_FORMAT_VYUY fourcc_code('V', 'Y', 'U', 'Y') /* [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian */ + +#define DRM_FORMAT_AYUV fourcc_code('A', 'Y', 'U', 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */ + +/* + * 2 plane RGB + A + * index 0 = RGB plane, same format as the corresponding non _A8 format has + * index 1 = A plane, [7:0] A + */ +#define DRM_FORMAT_XRGB8888_A8 fourcc_code('X', 'R', 'A', '8') +#define DRM_FORMAT_XBGR8888_A8 fourcc_code('X', 'B', 'A', '8') +#define DRM_FORMAT_RGBX8888_A8 fourcc_code('R', 'X', 'A', '8') +#define DRM_FORMAT_BGRX8888_A8 fourcc_code('B', 'X', 'A', '8') +#define DRM_FORMAT_RGB888_A8 fourcc_code('R', '8', 'A', '8') +#define DRM_FORMAT_BGR888_A8 fourcc_code('B', '8', 'A', '8') +#define DRM_FORMAT_RGB565_A8 fourcc_code('R', '5', 'A', '8') +#define DRM_FORMAT_BGR565_A8 fourcc_code('B', '5', 'A', '8') + +/* + * 2 plane YCbCr + * index 0 = Y plane, [7:0] Y + * index 1 = Cr:Cb plane, [15:0] Cr:Cb little endian + * or + * index 1 = Cb:Cr plane, [15:0] Cb:Cr little endian + */ +#define DRM_FORMAT_NV12 fourcc_code('N', 'V', '1', '2') /* 2x2 subsampled Cr:Cb plane */ +#define DRM_FORMAT_NV21 fourcc_code('N', 'V', '2', '1') /* 2x2 subsampled Cb:Cr plane */ +#define DRM_FORMAT_NV16 fourcc_code('N', 'V', '1', '6') /* 2x1 subsampled Cr:Cb plane */ +#define DRM_FORMAT_NV61 fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */ +#define DRM_FORMAT_NV24 fourcc_code('N', 'V', '2', '4') /* non-subsampled Cr:Cb plane */ +#define DRM_FORMAT_NV42 fourcc_code('N', 'V', '4', '2') /* non-subsampled Cb:Cr plane */ + +/* + * 3 plane YCbCr + * index 0: Y plane, [7:0] Y + * index 1: Cb plane, [7:0] Cb + * index 2: Cr plane, [7:0] Cr + * or + * index 1: Cr plane, [7:0] Cr + * index 2: Cb plane, [7:0] Cb + */ +#define DRM_FORMAT_YUV410 fourcc_code('Y', 'U', 'V', '9') /* 4x4 subsampled Cb (1) and Cr (2) planes */ +#define DRM_FORMAT_YVU410 fourcc_code('Y', 'V', 'U', '9') /* 4x4 subsampled Cr (1) and Cb (2) planes */ +#define DRM_FORMAT_YUV411 fourcc_code('Y', 'U', '1', '1') /* 4x1 subsampled Cb (1) and Cr (2) planes */ +#define DRM_FORMAT_YVU411 fourcc_code('Y', 'V', '1', '1') /* 4x1 subsampled Cr (1) and Cb (2) planes */ +#define DRM_FORMAT_YUV420 fourcc_code('Y', 'U', '1', '2') /* 2x2 subsampled Cb (1) and Cr (2) planes */ +#define DRM_FORMAT_YVU420 fourcc_code('Y', 'V', '1', '2') /* 2x2 subsampled Cr (1) and Cb (2) planes */ +#define DRM_FORMAT_YUV422 fourcc_code('Y', 'U', '1', '6') /* 2x1 subsampled Cb (1) and Cr (2) planes */ +#define DRM_FORMAT_YVU422 fourcc_code('Y', 'V', '1', '6') /* 2x1 subsampled Cr (1) and Cb (2) planes */ +#define DRM_FORMAT_YUV444 fourcc_code('Y', 'U', '2', '4') /* non-subsampled Cb (1) and Cr (2) planes */ +#define DRM_FORMAT_YVU444 fourcc_code('Y', 'V', '2', '4') /* non-subsampled Cr (1) and Cb (2) planes */ + + +/* + * Format Modifiers: + * + * Format modifiers describe, typically, a re-ordering or modification + * of the data in a plane of an FB. This can be used to express tiled/ + * swizzled formats, or compression, or a combination of the two. + * + * The upper 8 bits of the format modifier are a vendor-id as assigned + * below. The lower 56 bits are assigned as vendor sees fit. + */ + +/* Vendor Ids: */ +#define DRM_FORMAT_MOD_NONE 0 +#define DRM_FORMAT_MOD_VENDOR_NONE 0 +#define DRM_FORMAT_MOD_VENDOR_INTEL 0x01 +#define DRM_FORMAT_MOD_VENDOR_AMD 0x02 +#define DRM_FORMAT_MOD_VENDOR_NV 0x03 +#define DRM_FORMAT_MOD_VENDOR_SAMSUNG 0x04 +#define DRM_FORMAT_MOD_VENDOR_QCOM 0x05 +#define DRM_FORMAT_MOD_VENDOR_VIVANTE 0x06 +#define DRM_FORMAT_MOD_VENDOR_BROADCOM 0x07 +/* add more to the end as needed */ + +#define DRM_FORMAT_RESERVED ((1ULL << 56) - 1) + +#define fourcc_mod_code(vendor, val) \ + ((((__u64)DRM_FORMAT_MOD_VENDOR_## vendor) << 56) | (val & 0x00ffffffffffffffULL)) + +/* + * Format Modifier tokens: + * + * When adding a new token please document the layout with a code comment, + * similar to the fourcc codes above. drm_fourcc.h is considered the + * authoritative source for all of these. + */ + +/* + * Invalid Modifier + * + * This modifier can be used as a sentinel to terminate the format modifiers + * list, or to initialize a variable with an invalid modifier. It might also be + * used to report an error back to userspace for certain APIs. + */ +#define DRM_FORMAT_MOD_INVALID fourcc_mod_code(NONE, DRM_FORMAT_RESERVED) + +/* + * Linear Layout + * + * Just plain linear layout. Note that this is different from no specifying any + * modifier (e.g. not setting DRM_MODE_FB_MODIFIERS in the DRM_ADDFB2 ioctl), + * which tells the driver to also take driver-internal information into account + * and so might actually result in a tiled framebuffer. + */ +#define DRM_FORMAT_MOD_LINEAR fourcc_mod_code(NONE, 0) + +/* Intel framebuffer modifiers */ + +/* + * Intel X-tiling layout + * + * This is a tiled layout using 4Kb tiles (except on gen2 where the tiles 2Kb) + * in row-major layout. Within the tile bytes are laid out row-major, with + * a platform-dependent stride. On top of that the memory can apply + * platform-depending swizzling of some higher address bits into bit6. + * + * This format is highly platforms specific and not useful for cross-driver + * sharing. It exists since on a given platform it does uniquely identify the + * layout in a simple way for i915-specific userspace. + */ +#define I915_FORMAT_MOD_X_TILED fourcc_mod_code(INTEL, 1) + +/* + * Intel Y-tiling layout + * + * This is a tiled layout using 4Kb tiles (except on gen2 where the tiles 2Kb) + * in row-major layout. Within the tile bytes are laid out in OWORD (16 bytes) + * chunks column-major, with a platform-dependent height. On top of that the + * memory can apply platform-depending swizzling of some higher address bits + * into bit6. + * + * This format is highly platforms specific and not useful for cross-driver + * sharing. It exists since on a given platform it does uniquely identify the + * layout in a simple way for i915-specific userspace. + */ +#define I915_FORMAT_MOD_Y_TILED fourcc_mod_code(INTEL, 2) + +/* + * Intel Yf-tiling layout + * + * This is a tiled layout using 4Kb tiles in row-major layout. + * Within the tile pixels are laid out in 16 256 byte units / sub-tiles which + * are arranged in four groups (two wide, two high) with column-major layout. + * Each group therefore consits out of four 256 byte units, which are also laid + * out as 2x2 column-major. + * 256 byte units are made out of four 64 byte blocks of pixels, producing + * either a square block or a 2:1 unit. + * 64 byte blocks of pixels contain four pixel rows of 16 bytes, where the width + * in pixel depends on the pixel depth. + */ +#define I915_FORMAT_MOD_Yf_TILED fourcc_mod_code(INTEL, 3) + +/* + * Intel color control surface (CCS) for render compression + * + * The framebuffer format must be one of the 8:8:8:8 RGB formats. + * The main surface will be plane index 0 and must be Y/Yf-tiled, + * the CCS will be plane index 1. + * + * Each CCS tile matches a 1024x512 pixel area of the main surface. + * To match certain aspects of the 3D hardware the CCS is + * considered to be made up of normal 128Bx32 Y tiles, Thus + * the CCS pitch must be specified in multiples of 128 bytes. + * + * In reality the CCS tile appears to be a 64Bx64 Y tile, composed + * of QWORD (8 bytes) chunks instead of OWORD (16 bytes) chunks. + * But that fact is not relevant unless the memory is accessed + * directly. + */ +#define I915_FORMAT_MOD_Y_TILED_CCS fourcc_mod_code(INTEL, 4) +#define I915_FORMAT_MOD_Yf_TILED_CCS fourcc_mod_code(INTEL, 5) + +/* + * Tiled, NV12MT, grouped in 64 (pixels) x 32 (lines) -sized macroblocks + * + * Macroblocks are laid in a Z-shape, and each pixel data is following the + * standard NV12 style. + * As for NV12, an image is the result of two frame buffers: one for Y, + * one for the interleaved Cb/Cr components (1/2 the height of the Y buffer). + * Alignment requirements are (for each buffer): + * - multiple of 128 pixels for the width + * - multiple of 32 pixels for the height + * + * For more information: see https://linuxtv.org/downloads/v4l-dvb-apis/re32.html + */ +#define DRM_FORMAT_MOD_SAMSUNG_64_32_TILE fourcc_mod_code(SAMSUNG, 1) + +/* Vivante framebuffer modifiers */ + +/* + * Vivante 4x4 tiling layout + * + * This is a simple tiled layout using tiles of 4x4 pixels in a row-major + * layout. + */ +#define DRM_FORMAT_MOD_VIVANTE_TILED fourcc_mod_code(VIVANTE, 1) + +/* + * Vivante 64x64 super-tiling layout + * + * This is a tiled layout using 64x64 pixel super-tiles, where each super-tile + * contains 8x4 groups of 2x4 tiles of 4x4 pixels (like above) each, all in row- + * major layout. + * + * For more information: see + * https://github.com/etnaviv/etna_viv/blob/master/doc/hardware.md#texture-tiling + */ +#define DRM_FORMAT_MOD_VIVANTE_SUPER_TILED fourcc_mod_code(VIVANTE, 2) + +/* + * Vivante 4x4 tiling layout for dual-pipe + * + * Same as the 4x4 tiling layout, except every second 4x4 pixel tile starts at a + * different base address. Offsets from the base addresses are therefore halved + * compared to the non-split tiled layout. + */ +#define DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED fourcc_mod_code(VIVANTE, 3) + +/* + * Vivante 64x64 super-tiling layout for dual-pipe + * + * Same as the 64x64 super-tiling layout, except every second 4x4 pixel tile + * starts at a different base address. Offsets from the base addresses are + * therefore halved compared to the non-split super-tiled layout. + */ +#define DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED fourcc_mod_code(VIVANTE, 4) + +/* NVIDIA Tegra frame buffer modifiers */ + +/* + * Some modifiers take parameters, for example the number of vertical GOBs in + * a block. Reserve the lower 32 bits for parameters + */ +#define __fourcc_mod_tegra_mode_shift 32 +#define fourcc_mod_tegra_code(val, params) \ + fourcc_mod_code(NV, ((((__u64)val) << __fourcc_mod_tegra_mode_shift) | params)) +#define fourcc_mod_tegra_mod(m) \ + (m & ~((1ULL << __fourcc_mod_tegra_mode_shift) - 1)) +#define fourcc_mod_tegra_param(m) \ + (m & ((1ULL << __fourcc_mod_tegra_mode_shift) - 1)) + +/* + * Tegra Tiled Layout, used by Tegra 2, 3 and 4. + * + * Pixels are arranged in simple tiles of 16 x 16 bytes. + */ +#define NV_FORMAT_MOD_TEGRA_TILED fourcc_mod_tegra_code(1, 0) + +/* + * Tegra 16Bx2 Block Linear layout, used by TK1/TX1 + * + * Pixels are arranged in 64x8 Groups Of Bytes (GOBs). GOBs are then stacked + * vertically by a power of 2 (1 to 32 GOBs) to form a block. + * + * Within a GOB, data is ordered as 16B x 2 lines sectors laid in Z-shape. + * + * Parameter 'v' is the log2 encoding of the number of GOBs stacked vertically. + * Valid values are: + * + * 0 == ONE_GOB + * 1 == TWO_GOBS + * 2 == FOUR_GOBS + * 3 == EIGHT_GOBS + * 4 == SIXTEEN_GOBS + * 5 == THIRTYTWO_GOBS + * + * Chapter 20 "Pixel Memory Formats" of the Tegra X1 TRM describes this format + * in full detail. + */ +#define NV_FORMAT_MOD_TEGRA_16BX2_BLOCK(v) fourcc_mod_tegra_code(2, v) + +/* + * Broadcom VC4 "T" format + * + * This is the primary layout that the V3D GPU can texture from (it + * can't do linear). The T format has: + * + * - 64b utiles of pixels in a raster-order grid according to cpp. It's 4x4 + * pixels at 32 bit depth. + * + * - 1k subtiles made of a 4x4 raster-order grid of 64b utiles (so usually + * 16x16 pixels). + * + * - 4k tiles made of a 2x2 grid of 1k subtiles (so usually 32x32 pixels). On + * even 4k tile rows, they're arranged as (BL, TL, TR, BR), and on odd rows + * they're (TR, BR, BL, TL), where bottom left is start of memory. + * + * - an image made of 4k tiles in rows either left-to-right (even rows of 4k + * tiles) or right-to-left (odd rows of 4k tiles). + */ +#define DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED fourcc_mod_code(BROADCOM, 1) + +#if defined(__cplusplus) +} +#endif + +#endif /* DRM_FOURCC_H */ diff --git a/platformsupport/scenes/opengl/linux_dmabuf.cpp b/platformsupport/scenes/opengl/linux_dmabuf.cpp new file mode 100644 index 0000000000..c9dd2de334 --- /dev/null +++ b/platformsupport/scenes/opengl/linux_dmabuf.cpp @@ -0,0 +1,504 @@ +/******************************************************************** + KWin - the KDE window manager + This file is part of the KDE project. + +Copyright © 2019 Roman Gilg +Copyright © 2018 Fredrik Höglund + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . +*********************************************************************/ +#include "linux_dmabuf.h" + +#include "drm_fourcc.h" +#include "../../../wayland_server.h" + +#include + +#include +#include + +namespace KWin +{ + +typedef EGLBoolean (*eglQueryDmaBufFormatsEXT_func) (EGLDisplay dpy, EGLint max_formats, EGLint *formats, EGLint *num_formats); +typedef EGLBoolean (*eglQueryDmaBufModifiersEXT_func) (EGLDisplay dpy, EGLint format, EGLint max_modifiers, EGLuint64KHR *modifiers, EGLBoolean *external_only, EGLint *num_modifiers); +eglQueryDmaBufFormatsEXT_func eglQueryDmaBufFormatsEXT = nullptr; +eglQueryDmaBufModifiersEXT_func eglQueryDmaBufModifiersEXT = nullptr; + +#ifndef EGL_EXT_image_dma_buf_import +#define EGL_LINUX_DMA_BUF_EXT 0x3270 +#define EGL_LINUX_DRM_FOURCC_EXT 0x3271 +#define EGL_DMA_BUF_PLANE0_FD_EXT 0x3272 +#define EGL_DMA_BUF_PLANE0_OFFSET_EXT 0x3273 +#define EGL_DMA_BUF_PLANE0_PITCH_EXT 0x3274 +#define EGL_DMA_BUF_PLANE1_FD_EXT 0x3275 +#define EGL_DMA_BUF_PLANE1_OFFSET_EXT 0x3276 +#define EGL_DMA_BUF_PLANE1_PITCH_EXT 0x3277 +#define EGL_DMA_BUF_PLANE2_FD_EXT 0x3278 +#define EGL_DMA_BUF_PLANE2_OFFSET_EXT 0x3279 +#define EGL_DMA_BUF_PLANE2_PITCH_EXT 0x327A +#define EGL_YUV_COLOR_SPACE_HINT_EXT 0x327B +#define EGL_SAMPLE_RANGE_HINT_EXT 0x327C +#define EGL_YUV_CHROMA_HORIZONTAL_SITING_HINT_EXT 0x327D +#define EGL_YUV_CHROMA_VERTICAL_SITING_HINT_EXT 0x327E +#define EGL_ITU_REC601_EXT 0x327F +#define EGL_ITU_REC709_EXT 0x3280 +#define EGL_ITU_REC2020_EXT 0x3281 +#define EGL_YUV_FULL_RANGE_EXT 0x3282 +#define EGL_YUV_NARROW_RANGE_EXT 0x3283 +#define EGL_YUV_CHROMA_SITING_0_EXT 0x3284 +#define EGL_YUV_CHROMA_SITING_0_5_EXT 0x3285 +#endif // EGL_EXT_image_dma_buf_import + +#ifndef EGL_EXT_image_dma_buf_import_modifiers +#define EGL_DMA_BUF_PLANE3_FD_EXT 0x3440 +#define EGL_DMA_BUF_PLANE3_OFFSET_EXT 0x3441 +#define EGL_DMA_BUF_PLANE3_PITCH_EXT 0x3442 +#define EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT 0x3443 +#define EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT 0x3444 +#define EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT 0x3445 +#define EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT 0x3446 +#define EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT 0x3447 +#define EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT 0x3448 +#define EGL_DMA_BUF_PLANE3_MODIFIER_LO_EXT 0x3449 +#define EGL_DMA_BUF_PLANE3_MODIFIER_HI_EXT 0x344A +#endif // EGL_EXT_image_dma_buf_import_modifiers + +struct YuvPlane +{ + int widthDivisor; + int heightDivisor; + uint32_t format; + int planeIndex; +}; + +struct YuvFormat +{ + uint32_t format; + int inputPlanes; + int outputPlanes; + int textureType; + struct YuvPlane planes[3]; +}; + +YuvFormat yuvFormats[] = { + { + DRM_FORMAT_YUYV, + 1, 2, + EGL_TEXTURE_Y_XUXV_WL, + { + { + 1, 1, + DRM_FORMAT_GR88, + 0 + }, + { + 2, 1, + DRM_FORMAT_ARGB8888, + 0 + } + } + }, + { + DRM_FORMAT_NV12, + 2, 2, + EGL_TEXTURE_Y_UV_WL, + { + { + 1, 1, + DRM_FORMAT_R8, + 0 + }, + { + 2, 2, + DRM_FORMAT_GR88, + 1 + } + } + }, + { + DRM_FORMAT_YUV420, + 3, 3, + EGL_TEXTURE_Y_U_V_WL, + { + { + 1, 1, + DRM_FORMAT_R8, + 0 + }, + { + 2, 2, + DRM_FORMAT_R8, + 1 + }, + { + 2, 2, + DRM_FORMAT_R8, + 2 + } + } + }, + { + DRM_FORMAT_YUV444, + 3, 3, + EGL_TEXTURE_Y_U_V_WL, + { + { + 1, 1, + DRM_FORMAT_R8, + 0 + }, + { + 1, 1, + DRM_FORMAT_R8, + 1 + }, + { + 1, 1, + DRM_FORMAT_R8, + 2 + } + } + } +}; + +DmabufBuffer::DmabufBuffer(EGLImage image, + const QVector &planes, + uint32_t format, + const QSize &size, + Flags flags, + LinuxDmabuf *interfaceImpl) + : DmabufBuffer(planes, format, size, flags, interfaceImpl) +{ + m_importType = ImportType::Direct; + addImage(image); +} + + +DmabufBuffer::DmabufBuffer(const QVector &planes, + uint32_t format, + const QSize &size, + Flags flags, + LinuxDmabuf *interfaceImpl) + : KWayland::Server::LinuxDmabufUnstableV1Buffer(format, size) + , m_planes(planes) + , m_flags(flags) + , m_interfaceImpl(interfaceImpl) +{ + m_importType = ImportType::Conversion; +} + +DmabufBuffer::~DmabufBuffer() +{ + if (m_interfaceImpl) { + m_interfaceImpl->removeBuffer(this); + removeImages(); + } + + // Close all open file descriptors + for (int i = 0; i < m_planes.count(); i++) { + if (m_planes[i].fd != -1) + ::close(m_planes[i].fd); + m_planes[i].fd = -1; + } +} + +void DmabufBuffer::addImage(EGLImage image) +{ + m_images << image; +} + +void DmabufBuffer::removeImages() +{ + for (auto image : m_images) { + eglDestroyImageKHR(m_interfaceImpl->m_backend->eglDisplay(), image); + } + m_images.clear(); + m_interfaceImpl = nullptr; +} + +using Plane = KWayland::Server::LinuxDmabufUnstableV1Interface::Plane; +using Flags = KWayland::Server::LinuxDmabufUnstableV1Interface::Flags; + +EGLImage LinuxDmabuf::createImage(const QVector &planes, + uint32_t format, + const QSize &size) +{ + const bool hasModifiers = eglQueryDmaBufModifiersEXT != nullptr && + planes[0].modifier != DRM_FORMAT_MOD_INVALID; + + QVector attribs; + attribs << EGL_WIDTH << size.width() + << EGL_HEIGHT << size.height() + << EGL_LINUX_DRM_FOURCC_EXT << EGLint(format) + + << EGL_DMA_BUF_PLANE0_FD_EXT << planes[0].fd + << EGL_DMA_BUF_PLANE0_OFFSET_EXT << EGLint(planes[0].offset) + << EGL_DMA_BUF_PLANE0_PITCH_EXT << EGLint(planes[0].stride); + + if (hasModifiers) { + attribs + << EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT << EGLint(planes[0].modifier & 0xffffffff) + << EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT << EGLint(planes[0].modifier >> 32); + } + + if (planes.count() > 1) { + attribs + << EGL_DMA_BUF_PLANE1_FD_EXT << planes[1].fd + << EGL_DMA_BUF_PLANE1_OFFSET_EXT << EGLint(planes[1].offset) + << EGL_DMA_BUF_PLANE1_PITCH_EXT << EGLint(planes[1].stride); + + if (hasModifiers) { + attribs + << EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT << EGLint(planes[1].modifier & 0xffffffff) + << EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT << EGLint(planes[1].modifier >> 32); + } + } + + if (planes.count() > 2) { + attribs + << EGL_DMA_BUF_PLANE2_FD_EXT << planes[2].fd + << EGL_DMA_BUF_PLANE2_OFFSET_EXT << EGLint(planes[2].offset) + << EGL_DMA_BUF_PLANE2_PITCH_EXT << EGLint(planes[2].stride); + + if (hasModifiers) { + attribs + << EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT << EGLint(planes[2].modifier & 0xffffffff) + << EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT << EGLint(planes[2].modifier >> 32); + } + } + + if (eglQueryDmaBufModifiersEXT != nullptr && planes.count() > 3) { + attribs + << EGL_DMA_BUF_PLANE3_FD_EXT << planes[3].fd + << EGL_DMA_BUF_PLANE3_OFFSET_EXT << EGLint(planes[3].offset) + << EGL_DMA_BUF_PLANE3_PITCH_EXT << EGLint(planes[3].stride); + + if (hasModifiers) { + attribs + << EGL_DMA_BUF_PLANE3_MODIFIER_LO_EXT << EGLint(planes[3].modifier & 0xffffffff) + << EGL_DMA_BUF_PLANE3_MODIFIER_HI_EXT << EGLint(planes[3].modifier >> 32); + } + } + + attribs << EGL_NONE; + + EGLImage image = eglCreateImageKHR(m_backend->eglDisplay(), + EGL_NO_CONTEXT, + EGL_LINUX_DMA_BUF_EXT, + (EGLClientBuffer) nullptr, + attribs.data()); + if (image == EGL_NO_IMAGE_KHR) { + return nullptr; + } + + return image; +} + +KWayland::Server::LinuxDmabufUnstableV1Buffer* LinuxDmabuf::importBuffer(const QVector &planes, + uint32_t format, + const QSize &size, + Flags flags) +{ + Q_ASSERT(planes.count() > 0); + + // Try first to import as a single image + if (auto *img = createImage(planes, format, size)) { + return new DmabufBuffer(img, planes, format, size, flags, this); + } + + // TODO: to enable this we must be able to store multiple textures per window pixmap + // and when on window draw do yuv to rgb transformation per shader (see Weston) +// // not a single image, try yuv import +// return yuvImport(planes, format, size, flags); + + return nullptr; +} + +KWayland::Server::LinuxDmabufUnstableV1Buffer* LinuxDmabuf::yuvImport(const QVector &planes, + uint32_t format, + const QSize &size, + Flags flags) +{ + YuvFormat yuvFormat; + for (YuvFormat f : yuvFormats) { + if (f.format == format) { + yuvFormat = f; + break; + } + } + if (yuvFormat.format == 0) { + return nullptr; + } + if (planes.count() != yuvFormat.inputPlanes) { + return nullptr; + } + + auto *buf = new DmabufBuffer(planes, format, size, flags, this); + + for (int i = 0; i < yuvFormat.outputPlanes; i++) { + int planeIndex = yuvFormat.planes[i].planeIndex; + Plane plane = { + planes[planeIndex].fd, + planes[planeIndex].offset, + planes[planeIndex].stride, + planes[planeIndex].modifier + }; + const auto planeFormat = yuvFormat.planes[i].format; + const auto planeSize = QSize(size.width() / yuvFormat.planes[i].widthDivisor, + size.height() / yuvFormat.planes[i].heightDivisor); + auto *image = createImage(QVector(1, plane), + planeFormat, + planeSize); + if (!image) { + delete buf; + return nullptr; + } + buf->addImage(image); + } + // TODO: add buf import properties + return buf; +} + +LinuxDmabuf* LinuxDmabuf::factory(AbstractEglBackend *backend) +{ + if (!backend->hasExtension(QByteArrayLiteral("EGL_EXT_image_dma_buf_import"))) { + return nullptr; + } + + if (backend->hasExtension(QByteArrayLiteral("EGL_EXT_image_dma_buf_import_modifiers"))) { + eglQueryDmaBufFormatsEXT = (eglQueryDmaBufFormatsEXT_func) eglGetProcAddress("eglQueryDmaBufFormatsEXT"); + eglQueryDmaBufModifiersEXT = (eglQueryDmaBufModifiersEXT_func) eglGetProcAddress("eglQueryDmaBufModifiersEXT"); + } + + if (eglQueryDmaBufFormatsEXT == nullptr) { + return nullptr; + } + + return new LinuxDmabuf(backend); +} + +LinuxDmabuf::LinuxDmabuf(AbstractEglBackend *backend) + : KWayland::Server::LinuxDmabufUnstableV1Interface::Impl() + , m_backend(backend) +{ + Q_ASSERT(waylandServer()); + m_interface = waylandServer()->display()->createLinuxDmabufInterface(backend); + setSupportedFormatsAndModifiers(); + m_interface->setImpl(this); + m_interface->create(); +} + +LinuxDmabuf::~LinuxDmabuf() +{ + for (auto *dmabuf : qAsConst(m_buffers)) { + dmabuf->removeImages(); + } +} + +void LinuxDmabuf::removeBuffer(DmabufBuffer *buffer) +{ + m_buffers.remove(buffer); +} + +const uint32_t s_multiPlaneFormats[] = { + DRM_FORMAT_XRGB8888_A8, + DRM_FORMAT_XBGR8888_A8, + DRM_FORMAT_RGBX8888_A8, + DRM_FORMAT_BGRX8888_A8, + DRM_FORMAT_RGB888_A8, + DRM_FORMAT_BGR888_A8, + DRM_FORMAT_RGB565_A8, + DRM_FORMAT_BGR565_A8, + + DRM_FORMAT_NV12, + DRM_FORMAT_NV21, + DRM_FORMAT_NV16, + DRM_FORMAT_NV61, + DRM_FORMAT_NV24, + DRM_FORMAT_NV42, + + DRM_FORMAT_YUV410, + DRM_FORMAT_YVU410, + DRM_FORMAT_YUV411, + DRM_FORMAT_YVU411, + DRM_FORMAT_YUV420, + DRM_FORMAT_YVU420, + DRM_FORMAT_YUV422, + DRM_FORMAT_YVU422, + DRM_FORMAT_YUV444, + DRM_FORMAT_YVU444 +}; + +void filterFormatsWithMultiplePlanes(QVector &formats) +{ + QVector::iterator it = formats.begin(); + while (it != formats.end()) { + for (auto linuxFormat : s_multiPlaneFormats) { + if (*it == linuxFormat) { + qDebug() << "Filter multi-plane format" << *it; + it = formats.erase(it); + it--; + break; + } + } + it++; + } +} + +void LinuxDmabuf::setSupportedFormatsAndModifiers() +{ + const EGLDisplay eglDisplay = m_backend->eglDisplay(); + EGLint count = 0; + EGLBoolean success = eglQueryDmaBufFormatsEXT(eglDisplay, 0, NULL, &count); + + if (!success || count == 0) { + return; + } + + QVector formats(count); + if (!eglQueryDmaBufFormatsEXT(eglDisplay, count, (EGLint *) formats.data(), &count)) { + return; + } + + filterFormatsWithMultiplePlanes(formats); + + QHash > set; + + for (auto format : qAsConst(formats)) { + if (eglQueryDmaBufModifiersEXT != nullptr) { + count = 0; + success = eglQueryDmaBufModifiersEXT(eglDisplay, format, 0, NULL, NULL, &count); + + if (success && count > 0) { + QVector modifiers(count); + if (eglQueryDmaBufModifiersEXT(eglDisplay, + format, count, modifiers.data(), + NULL, &count)) { + QSet modifiersSet; + for (auto mod : qAsConst(modifiers)) { + modifiersSet.insert(mod); + } + set.insert(format, modifiersSet); + continue; + } + } + } + set.insert(format, QSet()); + } + + m_interface->setSupportedFormatsWithModifiers(set); +} + +} diff --git a/platformsupport/scenes/opengl/linux_dmabuf.h b/platformsupport/scenes/opengl/linux_dmabuf.h new file mode 100644 index 0000000000..4962767eba --- /dev/null +++ b/platformsupport/scenes/opengl/linux_dmabuf.h @@ -0,0 +1,111 @@ +/******************************************************************** + KWin - the KDE window manager + This file is part of the KDE project. + +Copyright © 2019 Roman Gilg +Copyright © 2018 Fredrik Höglund + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see . +*********************************************************************/ +#pragma once + +#include "abstract_egl_backend.h" + +#include + +#include + +namespace KWin +{ +class LinuxDmabuf; + +class DmabufBuffer : public KWayland::Server::LinuxDmabufUnstableV1Buffer +{ +public: + using Plane = KWayland::Server::LinuxDmabufUnstableV1Interface::Plane; + using Flags = KWayland::Server::LinuxDmabufUnstableV1Interface::Flags; + + enum class ImportType { + Direct, + Conversion + }; + + DmabufBuffer(EGLImage image, + const QVector &planes, + uint32_t format, + const QSize &size, + Flags flags, + LinuxDmabuf *interfaceImpl); + + DmabufBuffer(const QVector &planes, + uint32_t format, + const QSize &size, + Flags flags, + LinuxDmabuf *interfaceImpl); + + ~DmabufBuffer() override; + + void addImage(EGLImage image); + void removeImages(); + + QVector images() const { return m_images; } + Flags flags() const { return m_flags; } + const QVector &planes() const { return m_planes; } + +private: + QVector m_images; + QVector m_planes; + Flags m_flags; + LinuxDmabuf *m_interfaceImpl; + ImportType m_importType; +}; + +class LinuxDmabuf : public KWayland::Server::LinuxDmabufUnstableV1Interface::Impl +{ +public: + using Plane = KWayland::Server::LinuxDmabufUnstableV1Interface::Plane; + using Flags = KWayland::Server::LinuxDmabufUnstableV1Interface::Flags; + + static LinuxDmabuf* factory(AbstractEglBackend *backend); + + explicit LinuxDmabuf(AbstractEglBackend *backend); + ~LinuxDmabuf(); + + KWayland::Server::LinuxDmabufUnstableV1Buffer *importBuffer(const QVector &planes, + uint32_t format, + const QSize &size, + Flags flags) override; + +private: + EGLImage createImage(const QVector &planes, + uint32_t format, + const QSize &size); + + + KWayland::Server::LinuxDmabufUnstableV1Buffer *yuvImport(const QVector &planes, + uint32_t format, + const QSize &size, + Flags flags); + + void removeBuffer(DmabufBuffer *buffer); + void setSupportedFormatsAndModifiers(); + + KWayland::Server::LinuxDmabufUnstableV1Interface *m_interface; + QSet m_buffers; + AbstractEglBackend *m_backend; + + friend class DmabufBuffer; +}; + +}