Module: Mesa Branch: master Commit: f386776ea55f86d0288c955cf4cf877a1b4a027d URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=f386776ea55f86d0288c955cf4cf877a1b4a027d
Author: Thomas Hellstrom <[email protected]> Date: Fri Feb 9 09:37:19 2018 +0100 loader_dri3/glx/egl: Reinstate the loader_dri3_vtable get_dri_screen callback Removing this callback caused rendering corruption in some multi-screen cases, so it is reinstated but without the drawable argument which was never used by implementations and was confusing since the drawable could have been created with another screen. Cc: "17.3 18.0" [email protected] Fixes: 5198e48a0d (loader_dri3/glx/egl: Remove the loader_dri3_vtable get_dri_screen callback) Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105013 Reported-by: Daniel van Vugt <[email protected]> Tested-by: Timo Aaltonen <[email protected]> Signed-off-by: Thomas Hellstrom <[email protected]> Reviewed-by: Brian Paul <[email protected]> --- src/egl/drivers/dri2/platform_x11_dri3.c | 12 ++++++++++++ src/glx/dri3_glx.c | 11 +++++++++++ src/loader/loader_dri3_helper.c | 12 +++++++++++- src/loader/loader_dri3_helper.h | 1 + 4 files changed, 35 insertions(+), 1 deletion(-) diff --git a/src/egl/drivers/dri2/platform_x11_dri3.c b/src/egl/drivers/dri2/platform_x11_dri3.c index 6ead4d0a22..2073c592dc 100644 --- a/src/egl/drivers/dri2/platform_x11_dri3.c +++ b/src/egl/drivers/dri2/platform_x11_dri3.c @@ -75,6 +75,17 @@ egl_dri3_get_dri_context(struct loader_dri3_drawable *draw) return dri2_ctx->dri_context; } +static __DRIscreen * +egl_dri3_get_dri_screen(void) +{ + _EGLContext *ctx = _eglGetCurrentContext(); + struct dri2_egl_context *dri2_ctx; + if (!ctx) + return NULL; + dri2_ctx = dri2_egl_context(ctx); + return dri2_egl_display(dri2_ctx->base.Resource.Display)->dri_screen; +} + static void egl_dri3_flush_drawable(struct loader_dri3_drawable *draw, unsigned flags) { @@ -88,6 +99,7 @@ static const struct loader_dri3_vtable egl_dri3_vtable = { .set_drawable_size = egl_dri3_set_drawable_size, .in_current_context = egl_dri3_in_current_context, .get_dri_context = egl_dri3_get_dri_context, + .get_dri_screen = egl_dri3_get_dri_screen, .flush_drawable = egl_dri3_flush_drawable, .show_fps = NULL, }; diff --git a/src/glx/dri3_glx.c b/src/glx/dri3_glx.c index f280a8cef7..016f91b196 100644 --- a/src/glx/dri3_glx.c +++ b/src/glx/dri3_glx.c @@ -116,6 +116,16 @@ glx_dri3_get_dri_context(struct loader_dri3_drawable *draw) return (gc != &dummyContext) ? dri3Ctx->driContext : NULL; } +static __DRIscreen * +glx_dri3_get_dri_screen(void) +{ + struct glx_context *gc = __glXGetCurrentContext(); + struct dri3_context *pcp = (struct dri3_context *) gc; + struct dri3_screen *psc = (struct dri3_screen *) pcp->base.psc; + + return (gc != &dummyContext && psc) ? psc->driScreen : NULL; +} + static void glx_dri3_flush_drawable(struct loader_dri3_drawable *draw, unsigned flags) { @@ -150,6 +160,7 @@ static const struct loader_dri3_vtable glx_dri3_vtable = { .set_drawable_size = glx_dri3_set_drawable_size, .in_current_context = glx_dri3_in_current_context, .get_dri_context = glx_dri3_get_dri_context, + .get_dri_screen = glx_dri3_get_dri_screen, .flush_drawable = glx_dri3_flush_drawable, .show_fps = glx_dri3_show_fps, }; diff --git a/src/loader/loader_dri3_helper.c b/src/loader/loader_dri3_helper.c index 0cd0dffa69..30ea133f7e 100644 --- a/src/loader/loader_dri3_helper.c +++ b/src/loader/loader_dri3_helper.c @@ -1318,6 +1318,7 @@ dri3_get_pixmap_buffer(__DRIdrawable *driDrawable, unsigned int format, xcb_sync_fence_t sync_fence; struct xshmfence *shm_fence; int fence_fd; + __DRIscreen *cur_screen; if (buffer) return buffer; @@ -1348,8 +1349,17 @@ dri3_get_pixmap_buffer(__DRIdrawable *driDrawable, unsigned int format, if (!bp_reply) goto no_image; + /* Get the currently-bound screen or revert to using the drawable's screen if + * no contexts are currently bound. The latter case is at least necessary for + * obs-studio, when using Window Capture (Xcomposite) as a Source. + */ + cur_screen = draw->vtable->get_dri_screen(); + if (!cur_screen) { + cur_screen = draw->dri_screen; + } + buffer->image = loader_dri3_create_image(draw->conn, bp_reply, format, - draw->dri_screen, draw->ext->image, + cur_screen, draw->ext->image, buffer); if (!buffer->image) goto no_image; diff --git a/src/loader/loader_dri3_helper.h b/src/loader/loader_dri3_helper.h index 4ce98b8c59..839cba30df 100644 --- a/src/loader/loader_dri3_helper.h +++ b/src/loader/loader_dri3_helper.h @@ -99,6 +99,7 @@ struct loader_dri3_vtable { void (*set_drawable_size)(struct loader_dri3_drawable *, int, int); bool (*in_current_context)(struct loader_dri3_drawable *); __DRIcontext *(*get_dri_context)(struct loader_dri3_drawable *); + __DRIscreen *(*get_dri_screen)(void); void (*flush_drawable)(struct loader_dri3_drawable *, unsigned); void (*show_fps)(struct loader_dri3_drawable *, uint64_t); }; _______________________________________________ mesa-commit mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-commit
