@@ -33,6 +33,9 @@ extern EGLContext qemu_egl_rn_ctx;
int egl_rendernode_init(const char *rendernode);
int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc);
+void egl_dmabuf_import_texture(QemuDmaBuf *dmabuf);
+void egl_dmabuf_release_texture(QemuDmaBuf *dmabuf);
+
#endif
EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, Window win);
@@ -19,6 +19,7 @@
#include <dirent.h>
#include "qemu/error-report.h"
+#include "ui/console.h"
#include "ui/egl-helpers.h"
EGLDisplay *qemu_egl_display;
@@ -241,6 +242,51 @@ int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc)
return fd;
}
+void egl_dmabuf_import_texture(QemuDmaBuf *dmabuf)
+{
+ EGLImageKHR image = EGL_NO_IMAGE_KHR;
+ EGLint attrs[] = {
+ EGL_DMA_BUF_PLANE0_FD_EXT, dmabuf->fd,
+ EGL_DMA_BUF_PLANE0_PITCH_EXT, dmabuf->stride,
+ EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0,
+ EGL_WIDTH, dmabuf->width,
+ EGL_HEIGHT, dmabuf->height,
+ EGL_LINUX_DRM_FOURCC_EXT, dmabuf->fourcc,
+ EGL_NONE, /* end of list */
+ };
+
+ if (dmabuf->texture != 0) {
+ return;
+ }
+
+ image = eglCreateImageKHR(qemu_egl_display,
+ EGL_NO_CONTEXT,
+ EGL_LINUX_DMA_BUF_EXT,
+ NULL, attrs);
+ if (image == EGL_NO_IMAGE_KHR) {
+ error_report("eglCreateImageKHR failed");
+ return;
+ }
+
+ glGenTextures(1, &dmabuf->texture);
+ glBindTexture(GL_TEXTURE_2D, dmabuf->texture);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+
+ glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)image);
+ eglDestroyImageKHR(qemu_egl_display, image);
+}
+
+void egl_dmabuf_release_texture(QemuDmaBuf *dmabuf)
+{
+ if (dmabuf->texture == 0) {
+ return;
+ }
+
+ glDeleteTextures(1, &dmabuf->texture);
+ dmabuf->texture = 0;
+}
+
#endif /* CONFIG_OPENGL_DMABUF */
/* ---------------------------------------------------------------------- */
Add helper function to import a dma-buf as opengl texture. Also add a helper to release the texture again. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> --- include/ui/egl-helpers.h | 3 +++ ui/egl-helpers.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 49 insertions(+)