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kmsdrm: Fix tearing in neverputt/ball
https://gfycat.com/FatalFarawayHeron
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parent
c544d2b954
commit
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@ -73,10 +73,12 @@ KMSDRM_GLES_SwapWindow(_THIS, SDL_Window * window) {
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}
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/* Release previously displayed buffer (which is now the backbuffer) and lock a new one */
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if (wdata->locked_bo != NULL) {
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KMSDRM_gbm_surface_release_buffer(wdata->gs, wdata->locked_bo);
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/* SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "Released GBM surface %p", (void *)wdata->locked_bo); */
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wdata->locked_bo = NULL;
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if (wdata->next_bo != NULL) {
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KMSDRM_gbm_surface_release_buffer(wdata->gs, wdata->current_bo);
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/* SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "Released GBM surface %p", (void *)wdata->next_bo); */
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wdata->current_bo = wdata->next_bo;
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wdata->next_bo = NULL;
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}
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if (!(_this->egl_data->eglSwapBuffers(_this->egl_data->egl_display, wdata->egl_surface))) {
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@ -84,15 +86,22 @@ KMSDRM_GLES_SwapWindow(_THIS, SDL_Window * window) {
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return 0;
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}
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wdata->locked_bo = KMSDRM_gbm_surface_lock_front_buffer(wdata->gs);
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if (wdata->locked_bo == NULL) {
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if (wdata->current_bo == NULL) {
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wdata->current_bo = KMSDRM_gbm_surface_lock_front_buffer(wdata->gs);
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if (wdata->current_bo == NULL) {
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return 0;
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}
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}
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wdata->next_bo = KMSDRM_gbm_surface_lock_front_buffer(wdata->gs);
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if (wdata->next_bo == NULL) {
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SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "Could not lock GBM surface front buffer");
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return 0;
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/* } else {
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SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "Locked GBM surface %p", (void *)wdata->locked_bo); */
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SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "Locked GBM surface %p", (void *)wdata->next_bo); */
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}
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fb_info = KMSDRM_FBFromBO(_this, wdata->locked_bo);
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fb_info = KMSDRM_FBFromBO(_this, wdata->next_bo);
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if (_this->egl_data->egl_swapinterval == 0) {
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/* Swap buffers instantly, possible tearing */
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/* SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "drmModeSetCrtc(%d, %u, %u, 0, 0, &%u, 1, &%ux%u@%u)",
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@ -542,9 +542,13 @@ KMSDRM_DestroyWindow(_THIS, SDL_Window * window)
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if(data) {
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/* Wait for any pending page flips and unlock buffer */
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KMSDRM_WaitPageFlip(_this, data, -1);
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if (data->locked_bo != NULL) {
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KMSDRM_gbm_surface_release_buffer(data->gs, data->locked_bo);
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data->locked_bo = NULL;
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if (data->next_bo != NULL) {
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KMSDRM_gbm_surface_release_buffer(data->gs, data->next_bo);
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data->next_bo = NULL;
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}
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if (data->current_bo != NULL) {
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KMSDRM_gbm_surface_release_buffer(data->gs, data->current_bo);
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data->current_bo = NULL;
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}
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#if SDL_VIDEO_OPENGL_EGL
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SDL_EGL_MakeCurrent(_this, EGL_NO_SURFACE, EGL_NO_CONTEXT);
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@ -58,7 +58,8 @@ typedef struct SDL_DisplayData
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typedef struct SDL_WindowData
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{
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struct gbm_surface *gs;
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struct gbm_bo *locked_bo;
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struct gbm_bo *current_bo;
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struct gbm_bo *next_bo;
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SDL_bool waiting_for_flip;
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#if SDL_VIDEO_OPENGL_EGL
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EGLSurface egl_surface;
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