From 14cdb6153f4293d7e058465ab4acaebd6e1f647c Mon Sep 17 00:00:00 2001
From: Guido Günther <agx@sigxcpu.org>
Date: Fri, 23 Feb 2018 18:45:16 +0100
Subject: Add initial linux_dmabuf protocol support
Tested with
./weston-simple-dmabuf-drm
./weston-simple-dmabuf-drm --import-immediate=1
./weston-simple-dmabuf-drm --y-inverted=1
(and combinations)
Supports only single plane XRGB dmabufs for now.
---
render/gles2/texture.c | 62 ++++++++++++++++++++++++++++++++++++++++++++++----
1 file changed, 58 insertions(+), 4 deletions(-)
(limited to 'render/gles2')
diff --git a/render/gles2/texture.c b/render/gles2/texture.c
index d25d1809..5e84890f 100644
--- a/render/gles2/texture.c
+++ b/render/gles2/texture.c
@@ -227,6 +227,42 @@ static bool gles2_texture_upload_eglimage(struct wlr_texture *wlr_tex,
return true;
}
+
+static bool gles2_texture_upload_dmabuf(struct wlr_texture *_tex,
+ struct wl_resource *dmabuf_resource) {
+ struct wlr_gles2_texture *tex = (struct wlr_gles2_texture *)_tex;
+ struct wlr_dmabuf_buffer *dmabuf = wlr_dmabuf_buffer_from_buffer_resource(
+ dmabuf_resource);
+
+ if (!tex->egl->egl_exts.dmabuf_import) {
+ wlr_log(L_ERROR, "Want dmabuf but extension not present");
+ return false;
+ }
+
+ tex->wlr_texture.width = dmabuf->attributes.width;
+ tex->wlr_texture.height = dmabuf->attributes.height;
+
+ if (tex->image) {
+ wlr_egl_destroy_image(tex->egl, tex->image);
+ }
+
+ if (wlr_dmabuf_buffer_has_inverted_y(dmabuf)) {
+ _tex->inverted_y = true;
+ }
+
+ GLenum target = GL_TEXTURE_2D;
+ const struct pixel_format *pf =
+ gl_format_for_wl_format(WL_SHM_FORMAT_ARGB8888);
+ gles2_texture_ensure_texture(tex);
+ GL_CALL(glBindTexture(target, tex->tex_id));
+ tex->image = wlr_egl_create_image_from_dmabuf(tex->egl, &dmabuf->attributes);
+ GL_CALL(glActiveTexture(GL_TEXTURE0));
+ GL_CALL(glEGLImageTargetTexture2DOES(target, tex->image));
+ tex->pixel_format = pf;
+ tex->wlr_texture.valid = true;
+ return true;
+}
+
static void gles2_texture_get_matrix(struct wlr_texture *_texture,
float (*matrix)[16], const float (*projection)[16], int x, int y) {
struct wlr_gles2_texture *texture = (struct wlr_gles2_texture *)_texture;
@@ -240,6 +276,21 @@ static void gles2_texture_get_matrix(struct wlr_texture *_texture,
wlr_matrix_mul(projection, matrix, matrix);
}
+
+static bool gles2_texture_get_dmabuf_size(struct wlr_texture *texture, struct
+ wl_resource *resource, int *width, int *height) {
+ if (!wlr_dmabuf_resource_is_buffer(resource)) {
+ return false;
+ }
+
+ struct wlr_dmabuf_buffer *dmabuf = wlr_dmabuf_buffer_from_buffer_resource(
+ resource);
+ *width = dmabuf->attributes.width;
+ *height = dmabuf->attributes.height;
+ return true;
+}
+
+
static void gles2_texture_get_buffer_size(struct wlr_texture *texture, struct
wl_resource *resource, int *width, int *height) {
struct wl_shm_buffer *buffer = wl_shm_buffer_get(resource);
@@ -250,10 +301,12 @@ static void gles2_texture_get_buffer_size(struct wlr_texture *texture, struct
}
if (!wlr_egl_query_buffer(tex->egl, resource, EGL_WIDTH,
(EGLint*)width)) {
- wlr_log(L_ERROR, "could not get size of the buffer "
- "(no buffer found)");
- return;
- };
+ if (!gles2_texture_get_dmabuf_size(texture, resource,
+ width, height)) {
+ wlr_log(L_ERROR, "could not get size of the buffer");
+ return;
+ }
+ }
wlr_egl_query_buffer(tex->egl, resource, EGL_HEIGHT,
(EGLint*)height);
@@ -292,6 +345,7 @@ static struct wlr_texture_impl wlr_texture_impl = {
.upload_shm = gles2_texture_upload_shm,
.update_shm = gles2_texture_update_shm,
.upload_drm = gles2_texture_upload_drm,
+ .upload_dmabuf = gles2_texture_upload_dmabuf,
.upload_eglimage = gles2_texture_upload_eglimage,
.get_matrix = gles2_texture_get_matrix,
.get_buffer_size = gles2_texture_get_buffer_size,
--
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