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;
+};
+
+}