71 lines
1.7 KiB
C++
71 lines
1.7 KiB
C++
/*
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SPDX-FileCopyrightText: 2020 Aleix Pol Gonzalez <aleixpol@kde.org>
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SPDX-License-Identifier: LGPL-2.0-or-later
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*/
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#include "gbm_dmabuf.h"
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#include "kwineglimagetexture.h"
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#include "platformsupport/scenes/opengl/drm_fourcc.h"
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#include "main.h"
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#include "platform.h"
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#include <unistd.h>
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namespace KWin
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{
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GbmDmaBuf::GbmDmaBuf(GLTexture *texture, gbm_bo *bo, int fd)
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: DmaBufTexture(texture)
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, m_bo(bo)
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, m_fd(fd)
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{}
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GbmDmaBuf::~GbmDmaBuf()
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{
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m_texture.reset(nullptr);
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close(m_fd);
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gbm_bo_destroy(m_bo);
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}
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KWin::GbmDmaBuf *GbmDmaBuf::createBuffer(const QSize &size, gbm_device *device)
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{
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if (!device) {
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return nullptr;
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}
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auto bo = gbm_bo_create(device, size.width(), size.height(), GBM_BO_FORMAT_ARGB8888, GBM_BO_USE_RENDERING | GBM_BO_USE_LINEAR);
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if (!bo) {
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gbm_bo_destroy(bo);
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return nullptr;
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}
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const int fd = gbm_bo_get_fd(bo);
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if (fd < 0) {
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gbm_bo_destroy(bo);
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return nullptr;
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}
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EGLint importAttributes[] = {
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EGL_WIDTH, EGLint(gbm_bo_get_width(bo)),
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EGL_HEIGHT, EGLint(gbm_bo_get_height(bo)),
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EGL_LINUX_DRM_FOURCC_EXT, DRM_FORMAT_ARGB8888,
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EGL_DMA_BUF_PLANE0_FD_EXT, fd,
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EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(gbm_bo_get_offset(bo, 0)),
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EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(gbm_bo_get_stride(bo)),
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EGL_NONE
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};
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EGLDisplay display = kwinApp()->platform()->sceneEglDisplay();
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EGLImageKHR destinationImage = eglCreateImageKHR(display, EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, nullptr, importAttributes);
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if (destinationImage == EGL_NO_IMAGE_KHR) {
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return nullptr;
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}
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return new GbmDmaBuf(new KWin::EGLImageTexture(display, destinationImage, GL_RGBA8, size), bo, fd);
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}
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}
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