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-rw-r--r--render/dmabuf.c10
-rw-r--r--render/egl.c40
-rw-r--r--render/glapi.txt2
-rw-r--r--render/gles2/texture.c29
-rw-r--r--render/meson.build1
-rw-r--r--render/wlr_texture.c8
6 files changed, 88 insertions, 2 deletions
diff --git a/render/dmabuf.c b/render/dmabuf.c
new file mode 100644
index 00000000..6b500748
--- /dev/null
+++ b/render/dmabuf.c
@@ -0,0 +1,10 @@
+#include <unistd.h>
+#include <wlr/render/dmabuf.h>
+
+void wlr_dmabuf_attributes_finish( struct wlr_dmabuf_attributes *attribs) {
+ for (int i = 0; i < attribs->n_planes; ++i) {
+ close(attribs->fd[i]);
+ attribs->fd[i] = -1;
+ }
+ attribs->n_planes = 0;
+}
diff --git a/render/egl.c b/render/egl.c
index 6ac3ee2a..93e4ec55 100644
--- a/render/egl.c
+++ b/render/egl.c
@@ -178,8 +178,12 @@ bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, void *remote_display,
check_egl_ext(egl->exts_str, "EGL_EXT_image_dma_buf_import_modifiers")
&& eglQueryDmaBufFormatsEXT && eglQueryDmaBufModifiersEXT;
+ egl->egl_exts.dmabuf_export =
+ check_egl_ext(egl->exts_str, "EGL_MESA_image_dma_buf_export");
+
egl->egl_exts.bind_wayland_display =
check_egl_ext(egl->exts_str, "EGL_WL_bind_wayland_display");
+
print_dmabuf_formats(egl);
return true;
@@ -209,7 +213,7 @@ void wlr_egl_finish(struct wlr_egl *egl) {
}
bool wlr_egl_bind_display(struct wlr_egl *egl, struct wl_display *local_display) {
- if (!egl->egl_exts.bind_wayland_display) {
+ if (!egl->egl_exts.bind_wayland_display || !eglBindWaylandDisplayWL) {
return false;
}
@@ -445,7 +449,7 @@ bool wlr_egl_check_import_dmabuf(struct wlr_egl *egl,
int wlr_egl_get_dmabuf_formats(struct wlr_egl *egl,
int **formats) {
if (!egl->egl_exts.dmabuf_import ||
- !egl->egl_exts.dmabuf_import_modifiers) {
+ !egl->egl_exts.dmabuf_import_modifiers) {
wlr_log(L_DEBUG, "dmabuf extension not present");
return -1;
}
@@ -500,6 +504,38 @@ int wlr_egl_get_dmabuf_modifiers(struct wlr_egl *egl,
return num;
}
+bool wlr_egl_export_image_to_dmabuf(struct wlr_egl *egl, EGLImageKHR image,
+ int32_t width, int32_t height, uint32_t flags,
+ struct wlr_dmabuf_attributes *attribs) {
+ memset(attribs, 0, sizeof(struct wlr_dmabuf_attributes));
+
+ if (!egl->egl_exts.dmabuf_export || !eglExportDMABUFImageQueryMESA ||
+ !eglExportDMABUFImageMESA) {
+ return false;
+ }
+
+ // Only one set of modifiers is returned for all planes
+ if (!eglExportDMABUFImageQueryMESA(egl->display, image,
+ (int *)&attribs->format, &attribs->n_planes, &attribs->modifier)) {
+ return false;
+ }
+ if (attribs->n_planes > WLR_DMABUF_MAX_PLANES) {
+ wlr_log(L_ERROR, "EGL returned %d planes, but only %d are supported",
+ attribs->n_planes, WLR_DMABUF_MAX_PLANES);
+ return false;
+ }
+
+ if (!eglExportDMABUFImageMESA(egl->display, image, attribs->fd,
+ (EGLint *)attribs->stride, (EGLint *)attribs->offset)) {
+ return false;
+ }
+
+ attribs->width = width;
+ attribs->height = height;
+ attribs->flags = flags;
+ return true;
+}
+
bool wlr_egl_destroy_surface(struct wlr_egl *egl, EGLSurface surface) {
if (!surface) {
return true;
diff --git a/render/glapi.txt b/render/glapi.txt
index a8e4aaba..b1166f27 100644
--- a/render/glapi.txt
+++ b/render/glapi.txt
@@ -10,6 +10,8 @@ eglCreatePlatformWindowSurfaceEXT
-eglSwapBuffersWithDamageKHR
-eglQueryDmaBufFormatsEXT
-eglQueryDmaBufModifiersEXT
+-eglExportDMABUFImageQueryMESA
+-eglExportDMABUFImageMESA
-eglDebugMessageControlKHR
-glDebugMessageCallbackKHR
-glDebugMessageControlKHR
diff --git a/render/gles2/texture.c b/render/gles2/texture.c
index 2627e292..0f061f59 100644
--- a/render/gles2/texture.c
+++ b/render/gles2/texture.c
@@ -74,6 +74,34 @@ static bool gles2_texture_write_pixels(struct wlr_texture *wlr_texture,
return true;
}
+static bool gles2_texture_to_dmabuf(struct wlr_texture *wlr_texture,
+ struct wlr_dmabuf_attributes *attribs) {
+ struct wlr_gles2_texture *texture = gles2_get_texture(wlr_texture);
+
+ if (!texture->image) {
+ assert(texture->type == WLR_GLES2_TEXTURE_GLTEX);
+
+ if (!eglCreateImageKHR) {
+ return false;
+ }
+
+ texture->image = eglCreateImageKHR(texture->egl->display,
+ texture->egl->context, EGL_GL_TEXTURE_2D_KHR,
+ (EGLClientBuffer)(uintptr_t)texture->gl_tex, NULL);
+ if (texture->image == EGL_NO_IMAGE_KHR) {
+ return false;
+ }
+ }
+
+ uint32_t flags = 0;
+ if (texture->inverted_y) {
+ flags |= WLR_DMABUF_ATTRIBUTES_FLAGS_Y_INVERT;
+ }
+
+ return wlr_egl_export_image_to_dmabuf(texture->egl, texture->image,
+ texture->width, texture->height, flags, attribs);
+}
+
static void gles2_texture_destroy(struct wlr_texture *wlr_texture) {
if (wlr_texture == NULL) {
return;
@@ -102,6 +130,7 @@ static void gles2_texture_destroy(struct wlr_texture *wlr_texture) {
static const struct wlr_texture_impl texture_impl = {
.get_size = gles2_texture_get_size,
.write_pixels = gles2_texture_write_pixels,
+ .to_dmabuf = gles2_texture_to_dmabuf,
.destroy = gles2_texture_destroy,
};
diff --git a/render/meson.build b/render/meson.build
index 4fe9ea67..4b90c229 100644
--- a/render/meson.build
+++ b/render/meson.build
@@ -9,6 +9,7 @@ glapi = custom_target('glapi',
lib_wlr_render = static_library(
'wlr_render',
files(
+ 'dmabuf.c',
'egl.c',
'gles2/pixel_format.c',
'gles2/renderer.c',
diff --git a/render/wlr_texture.c b/render/wlr_texture.c
index 38c75d28..76986920 100644
--- a/render/wlr_texture.c
+++ b/render/wlr_texture.c
@@ -54,3 +54,11 @@ bool wlr_texture_write_pixels(struct wlr_texture *texture,
return texture->impl->write_pixels(texture, wl_fmt, stride, width, height,
src_x, src_y, dst_x, dst_y, data);
}
+
+bool wlr_texture_to_dmabuf(struct wlr_texture *texture,
+ struct wlr_dmabuf_attributes *attribs) {
+ if (!texture->impl->to_dmabuf) {
+ return false;
+ }
+ return texture->impl->to_dmabuf(texture, attribs);
+}