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kmsdrm: more coherent returns for SwapWindow.

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This commit is contained in:
Manuel Alfayate Corchete 2020-09-06 12:48:39 +02:00
parent d3d9d432ac
commit 68ac9349aa
2 changed files with 21 additions and 24 deletions
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43
src/video/kmsdrm/SDL_kmsdrmopengles.c
View File

@ -81,11 +81,12 @@ KMSDRM_GLES_SwapWindow(_THIS, SDL_Window * window)
SDL_DisplayData *dispdata = (SDL_DisplayData *) SDL_GetDisplayForWindow(window)->driverdata;
KMSDRM_FBInfo *fb;
KMSDRM_PlaneInfo info = {0};
int ret;
/* Recreate the GBM / EGL surfaces if the window has been reconfigured. */
if (windata->egl_surface_dirty) {
KMSDRM_CreateSurfaces(_this, window);
if (KMSDRM_CreateSurfaces(_this, window)) {
return SDL_SetError("Failed to do pending surfaces creation");
}
}
/*************************************************************************/
@ -101,7 +102,7 @@ KMSDRM_GLES_SwapWindow(_THIS, SDL_Window * window)
/* Mark, at EGL level, the buffer that we want to become the new front buffer.
However, it won't really happen until we request a pageflip at the KMS level and it completes. */
if (! _this->egl_data->eglSwapBuffers(_this->egl_data->egl_display, windata->egl_surface)) {
SDL_EGL_SetError("Failed to swap EGL buffers", "eglSwapBuffers");
return SDL_EGL_SetError("Failed to swap EGL buffers", "eglSwapBuffers");
}
/* It's safe to get the gpu_fence FD now, because eglSwapBuffers flushes it down the cmdstream,
@ -139,8 +140,7 @@ KMSDRM_GLES_SwapWindow(_THIS, SDL_Window * window)
info.crtc_h = windata->output_h;
info.crtc_x = windata->output_x;
ret = drm_atomic_set_plane_props(&info);
if (ret) {
if (drm_atomic_set_plane_props(&info)) {
return SDL_SetError("Failed to request prop changes for setting plane buffer and CRTC");
}
@ -148,10 +148,10 @@ KMSDRM_GLES_SwapWindow(_THIS, SDL_Window * window)
Just in case we come here after a DestroySurfaces() call. */
if (add_connector_property(dispdata->atomic_req, dispdata->connector , "CRTC_ID",
dispdata->crtc->crtc->crtc_id) < 0)
SDL_SetError("Failed to set CONNECTOR prop CRTC_ID to zero before buffer destruction");
return SDL_SetError("Failed to set CONNECTOR prop CRTC_ID to zero before buffer destruction");
if (add_crtc_property(dispdata->atomic_req, dispdata->crtc , "ACTIVE", 1) < 0)
SDL_SetError("Failed to set CRTC prop ACTIVE to zero before buffer destruction");
return SDL_SetError("Failed to set CRTC prop ACTIVE to zero before buffer destruction");
/* Set the IN_FENCE and OUT_FENCE props only here, since this is the only place
on which we're interested in managing who and when should access the buffers
@ -168,8 +168,7 @@ KMSDRM_GLES_SwapWindow(_THIS, SDL_Window * window)
/* Issue the one and only atomic commit where all changes will be requested!.
We need e a non-blocking atomic commit for triple buffering, because we
must not block on this atomic commit so we can re-enter program loop once more. */
ret = drm_atomic_commit(_this, SDL_FALSE);
if (ret) {
if (drm_atomic_commit(_this, SDL_FALSE)) {
return SDL_SetError("Failed to issue atomic commit on pageflip");
}
@ -200,7 +199,7 @@ KMSDRM_GLES_SwapWindow(_THIS, SDL_Window * window)
/* Block ends. */
/***************/
return ret;
return 0;
}
int
@ -210,12 +209,13 @@ KMSDRM_GLES_SwapWindowDB(_THIS, SDL_Window * window)
SDL_DisplayData *dispdata = (SDL_DisplayData *) SDL_GetDisplayForWindow(window)->driverdata;
KMSDRM_FBInfo *fb;
KMSDRM_PlaneInfo info = {0};
int ret;
/* Recreate the GBM / EGL surfaces if the window has been reconfigured. */
if (windata->egl_surface_dirty) {
KMSDRM_CreateSurfaces(_this, window);
}
if (KMSDRM_CreateSurfaces(_this, window)) {
return SDL_SetError("Failed to do pending surfaces creation");
}
}
/****************************************************************************************************/
/* In double-buffer mode, atomic commit will always be synchronous/blocking (ie: won't return until */
@ -227,7 +227,7 @@ KMSDRM_GLES_SwapWindowDB(_THIS, SDL_Window * window)
/* Mark, at EGL level, the buffer that we want to become the new front buffer.
However, it won't really happen until we request a pageflip at the KMS level and it completes. */
if (! _this->egl_data->eglSwapBuffers(_this->egl_data->egl_display, windata->egl_surface)) {
SDL_EGL_SetError("Failed to swap EGL buffers", "eglSwapBuffers");
return SDL_EGL_SetError("Failed to swap EGL buffers", "eglSwapBuffers");
}
/* Lock the buffer that is marked by eglSwapBuffers() to become the next front buffer (so it can not
@ -238,7 +238,7 @@ KMSDRM_GLES_SwapWindowDB(_THIS, SDL_Window * window)
}
fb = KMSDRM_FBFromBO(_this, windata->next_bo);
if (!fb) {
return SDL_SetError("Failed to get a new framebuffer BO");
return SDL_SetError("Failed to get a new framebuffer BO");
}
/* Add the pageflip to the request list. */
@ -252,8 +252,7 @@ KMSDRM_GLES_SwapWindowDB(_THIS, SDL_Window * window)
info.crtc_h = windata->output_h;
info.crtc_x = windata->output_x;
ret = drm_atomic_set_plane_props(&info);
if (ret) {
if (drm_atomic_set_plane_props(&info)) {
return SDL_SetError("Failed to request prop changes for setting plane buffer and CRTC");
}
@ -261,16 +260,14 @@ KMSDRM_GLES_SwapWindowDB(_THIS, SDL_Window * window)
Just in case we come here after a DestroySurfaces() call. */
if (add_connector_property(dispdata->atomic_req, dispdata->connector , "CRTC_ID",
dispdata->crtc->crtc->crtc_id) < 0)
SDL_SetError("Failed to set CONNECTOR prop CRTC_ID to zero before buffer destruction");
return SDL_SetError("Failed to set CONNECTOR prop CRTC_ID to zero before buffer destruction");
if (add_crtc_property(dispdata->atomic_req, dispdata->crtc , "ACTIVE", 1) < 0)
SDL_SetError("Failed to set CRTC prop ACTIVE to zero before buffer destruction");
return SDL_SetError("Failed to set CRTC prop ACTIVE to zero before buffer destruction");
/* Issue the one and only atomic commit where all changes will be requested!.
Blocking for double buffering: won't return until completed. */
ret = drm_atomic_commit(_this, SDL_TRUE);
if (ret) {
if (drm_atomic_commit(_this, SDL_TRUE)) {
return SDL_SetError("Failed to issue atomic commit");
}
@ -282,7 +279,7 @@ KMSDRM_GLES_SwapWindowDB(_THIS, SDL_Window * window)
/* Take note of current front buffer, so we can free it next time we come here. */
windata->bo = windata->next_bo;
return ret;
return 0;
}

2
src/video/kmsdrm/SDL_kmsdrmvideo.c
View File

@ -1386,7 +1386,7 @@ KMSDRM_CreateWindow(_THIS, SDL_Window * window)
window->driverdata = windata;
if (KMSDRM_CreateSurfaces(_this, window)) {
goto error;
goto error;
}
/* Add window to the internal list of tracked windows. Note, while it may