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render/gles2: prevent imported DMA-BUF textures from being mutated

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The compositor shouldn't write to client buffers if the client
attaches a DMA-BUF to a wl_surface, then attaches a shm buffer.
Make gles2_texture_write_pixels return an error to prevent this
from happening.
This commit is contained in:
Simon Ser 2021-04-12 11:58:38 +02:00
parent 1e5460d4c6
commit 004cf887b7
1 changed files with 1 additions and 1 deletions
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2
render/gles2/texture.c
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@ -53,7 +53,7 @@ static bool gles2_texture_write_pixels(struct wlr_texture *wlr_texture,
const void *data) {
struct wlr_gles2_texture *texture = gles2_get_texture(wlr_texture);
if (texture->target != GL_TEXTURE_2D) {
if (texture->target != GL_TEXTURE_2D || texture->image != EGL_NO_IMAGE_KHR) {
wlr_log(WLR_ERROR, "Cannot write pixels to immutable texture");
return false;
}