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Re: [Qemu-devel] [PATCH 3/3] egl-helpers: add dmabuf modifier support.
From: |
Marc-André Lureau |
Subject: |
Re: [Qemu-devel] [PATCH 3/3] egl-helpers: add dmabuf modifier support. |
Date: |
Wed, 22 May 2019 12:47:47 +0200 |
Hi
On Wed, May 22, 2019 at 12:04 PM Gerd Hoffmann <address@hidden> wrote:
>
> Add modifier parameter to egl_get_fd_for_texture(), to return the used
> modifier on dmabuf exports.
But nothing uses it yet?
>
> Check and use QemuDmaBuf->modifier in egl_dmabuf_import_texture() for
> dmabuf imports.
That could be a separate patch, or merged with the first patch.
>
> Signed-off-by: Gerd Hoffmann <address@hidden>
> ---
> include/ui/egl-helpers.h | 3 ++-
> ui/egl-helpers.c | 37 ++++++++++++++++++++++++++-----------
> ui/spice-display.c | 7 ++++---
> 3 files changed, 32 insertions(+), 15 deletions(-)
>
> diff --git a/include/ui/egl-helpers.h b/include/ui/egl-helpers.h
> index b976cb872821..d71412779913 100644
> --- a/include/ui/egl-helpers.h
> +++ b/include/ui/egl-helpers.h
> @@ -36,7 +36,8 @@ extern struct gbm_device *qemu_egl_rn_gbm_dev;
> extern EGLContext qemu_egl_rn_ctx;
>
> int egl_rendernode_init(const char *rendernode, DisplayGLMode mode);
> -int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc);
> +int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc,
> + EGLuint64KHR *modifier);
>
> void egl_dmabuf_import_texture(QemuDmaBuf *dmabuf);
> void egl_dmabuf_release_texture(QemuDmaBuf *dmabuf);
> diff --git a/ui/egl-helpers.c b/ui/egl-helpers.c
> index e90eef8c9c3a..87bfd32e8ddb 100644
> --- a/ui/egl-helpers.c
> +++ b/ui/egl-helpers.c
> @@ -200,7 +200,8 @@ err:
> return -1;
> }
>
> -int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc)
> +int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc,
> + EGLuint64KHR *modifier)
> {
> EGLImageKHR image;
> EGLint num_planes, fd;
> @@ -214,7 +215,7 @@ int egl_get_fd_for_texture(uint32_t tex_id, EGLint
> *stride, EGLint *fourcc)
> }
>
> eglExportDMABUFImageQueryMESA(qemu_egl_display, image, fourcc,
> - &num_planes, NULL);
> + &num_planes, modifier);
> if (num_planes != 1) {
> eglDestroyImageKHR(qemu_egl_display, image);
> return -1;
> @@ -228,20 +229,34 @@ int egl_get_fd_for_texture(uint32_t tex_id, EGLint
> *stride, EGLint *fourcc)
> 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 */
> - };
> + EGLint attrs[64];
> + int i = 0;
>
> if (dmabuf->texture != 0) {
> return;
> }
>
> + attrs[i++] = EGL_WIDTH;
> + attrs[i++] = dmabuf->width;
> + attrs[i++] = EGL_HEIGHT;
> + attrs[i++] = dmabuf->height;
> + attrs[i++] = EGL_LINUX_DRM_FOURCC_EXT;
> + attrs[i++] = dmabuf->fourcc;
> +
> + attrs[i++] = EGL_DMA_BUF_PLANE0_FD_EXT;
> + attrs[i++] = dmabuf->fd;
> + attrs[i++] = EGL_DMA_BUF_PLANE0_PITCH_EXT;
> + attrs[i++] = dmabuf->stride;
> + attrs[i++] = EGL_DMA_BUF_PLANE0_OFFSET_EXT;
> + attrs[i++] = 0;
> + if (dmabuf->modifier) {
> + attrs[i++] = EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT;
> + attrs[i++] = (dmabuf->modifier >> 0) & 0xffffffff;
> + attrs[i++] = EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT;
> + attrs[i++] = (dmabuf->modifier >> 32) & 0xffffffff;
> + }
> + attrs[i++] = EGL_NONE;
> +
> image = eglCreateImageKHR(qemu_egl_display,
> EGL_NO_CONTEXT,
> EGL_LINUX_DMA_BUF_EXT,
> diff --git a/ui/spice-display.c b/ui/spice-display.c
> index a5e26479a866..104df2302575 100644
> --- a/ui/spice-display.c
> +++ b/ui/spice-display.c
> @@ -888,7 +888,8 @@ static void spice_gl_switch(DisplayChangeListener *dcl,
> if (ssd->ds) {
> surface_gl_create_texture(ssd->gls, ssd->ds);
> fd = egl_get_fd_for_texture(ssd->ds->texture,
> - &stride, &fourcc);
> + &stride, &fourcc,
> + NULL);
> if (fd < 0) {
> surface_gl_destroy_texture(ssd->gls, ssd->ds);
> return;
> @@ -945,7 +946,7 @@ static void
> qemu_spice_gl_scanout_texture(DisplayChangeListener *dcl,
> int fd = -1;
>
> assert(tex_id);
> - fd = egl_get_fd_for_texture(tex_id, &stride, &fourcc);
> + fd = egl_get_fd_for_texture(tex_id, &stride, &fourcc, NULL);
> if (fd < 0) {
> fprintf(stderr, "%s: failed to get fd for texture\n", __func__);
> return;
> @@ -1063,7 +1064,7 @@ static void qemu_spice_gl_update(DisplayChangeListener
> *dcl,
> egl_fb_setup_new_tex(&ssd->blit_fb,
> dmabuf->width, dmabuf->height);
> fd = egl_get_fd_for_texture(ssd->blit_fb.texture,
> - &stride, &fourcc);
> + &stride, &fourcc, NULL);
> spice_qxl_gl_scanout(&ssd->qxl, fd,
> dmabuf->width, dmabuf->height,
> stride, fourcc, false);
> --
> 2.18.1
>
>
--
Marc-André Lureau