ecore_drm2: Try to mmap gbm buffers
We're currently doing screenshots in E under wayland by copying data out of the framebuffer, mmaping gbm buffers makes screenshots work again when rendering with GL.
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@ -108,7 +108,9 @@ err:
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EAPI Ecore_Drm2_Fb *
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ecore_drm2_fb_gbm_create(int fd, int width, int height, int depth, int bpp, unsigned int format, unsigned int handle, unsigned int stride)
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{
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struct drm_mode_map_dumb marg;
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Ecore_Drm2_Fb *fb;
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int ret;
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EINA_SAFETY_ON_TRUE_RETURN_VAL((fd < 0), NULL);
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@ -141,6 +143,15 @@ ecore_drm2_fb_gbm_create(int fd, int width, int height, int depth, int bpp, unsi
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}
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}
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/* mmap it if we can so screenshots are easy */
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memset(&marg, 0, sizeof(struct drm_mode_map_dumb));
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marg.handle = fb->hdl;
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ret = drmIoctl(fd, DRM_IOCTL_MODE_MAP_DUMB, &marg);
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if (!ret)
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{
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fb->mmap = mmap(NULL, fb->size, PROT_WRITE, MAP_SHARED, fd, marg.offset);
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if (fb->mmap == MAP_FAILED) fb->mmap = NULL;
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}
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return fb;
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err:
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@ -153,14 +164,14 @@ ecore_drm2_fb_destroy(Ecore_Drm2_Fb *fb)
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{
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EINA_SAFETY_ON_NULL_RETURN(fb);
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if (fb->mmap) munmap(fb->mmap, fb->size);
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if (fb->id) drmModeRmFB(fb->fd, fb->id);
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if (!fb->gbm)
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{
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struct drm_mode_destroy_dumb darg;
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if (fb->mmap) munmap(fb->mmap, fb->size);
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memset(&darg, 0, sizeof(struct drm_mode_destroy_dumb));
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darg.handle = fb->hdl;
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drmIoctl(fb->fd, DRM_IOCTL_MODE_DESTROY_DUMB, &darg);
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