diff options
Diffstat (limited to 'Source/3rdParty/SDL2/src/video/kmsdrm/SDL_kmsdrmopengles.c')
-rw-r--r-- | Source/3rdParty/SDL2/src/video/kmsdrm/SDL_kmsdrmopengles.c | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/Source/3rdParty/SDL2/src/video/kmsdrm/SDL_kmsdrmopengles.c b/Source/3rdParty/SDL2/src/video/kmsdrm/SDL_kmsdrmopengles.c deleted file mode 100644 index fc6304d..0000000 --- a/Source/3rdParty/SDL2/src/video/kmsdrm/SDL_kmsdrmopengles.c +++ /dev/null @@ -1,189 +0,0 @@ -/* - Simple DirectMedia Layer - Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org> - - This software is provided 'as-is', without any express or implied - warranty. In no event will the authors be held liable for any damages - arising from the use of this software. - - Permission is granted to anyone to use this software for any purpose, - including commercial applications, and to alter it and redistribute it - freely, subject to the following restrictions: - - 1. The origin of this software must not be misrepresented; you must not - claim that you wrote the original software. If you use this software - in a product, an acknowledgment in the product documentation would be - appreciated but is not required. - 2. Altered source versions must be plainly marked as such, and must not be - misrepresented as being the original software. - 3. This notice may not be removed or altered from any source distribution. -*/ - -#include "../../SDL_internal.h" - -#if SDL_VIDEO_DRIVER_KMSDRM && SDL_VIDEO_OPENGL_EGL - -#include "SDL_log.h" - -#include "SDL_kmsdrmvideo.h" -#include "SDL_kmsdrmopengles.h" -#include "SDL_kmsdrmdyn.h" - -#ifndef EGL_PLATFORM_GBM_MESA -#define EGL_PLATFORM_GBM_MESA 0x31D7 -#endif - -/* EGL implementation of SDL OpenGL support */ - -int -KMSDRM_GLES_LoadLibrary(_THIS, const char *path) { - return SDL_EGL_LoadLibrary(_this, path, ((SDL_VideoData *)_this->driverdata)->gbm, EGL_PLATFORM_GBM_MESA); -} - -SDL_EGL_CreateContext_impl(KMSDRM) - -SDL_bool -KMSDRM_GLES_SetupCrtc(_THIS, SDL_Window * window) { - SDL_WindowData *wdata = ((SDL_WindowData *) window->driverdata); - SDL_DisplayData *displaydata = (SDL_DisplayData *) SDL_GetDisplayForWindow(window)->driverdata; - SDL_VideoData *vdata = ((SDL_VideoData *)_this->driverdata); - KMSDRM_FBInfo *fb_info; - - if (!(_this->egl_data->eglSwapBuffers(_this->egl_data->egl_display, wdata->egl_surface))) { - SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "eglSwapBuffers failed on CRTC setup"); - return SDL_FALSE; - } - - wdata->crtc_bo = KMSDRM_gbm_surface_lock_front_buffer(wdata->gs); - if (wdata->crtc_bo == NULL) { - SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "Could not lock GBM surface front buffer on CRTC setup"); - return SDL_FALSE; - } - - fb_info = KMSDRM_FBFromBO(_this, wdata->crtc_bo); - if (fb_info == NULL) { - return SDL_FALSE; - } - - if(KMSDRM_drmModeSetCrtc(vdata->drm_fd, displaydata->crtc_id, fb_info->fb_id, - 0, 0, &vdata->saved_conn_id, 1, &displaydata->cur_mode) != 0) { - SDL_LogWarn(SDL_LOG_CATEGORY_VIDEO, "Could not set up CRTC to a GBM buffer"); - return SDL_FALSE; - - } - - wdata->crtc_ready = SDL_TRUE; - return SDL_TRUE; -} - -int KMSDRM_GLES_SetSwapInterval(_THIS, int interval) { - if (!_this->egl_data) { - return SDL_SetError("EGL not initialized"); - } - - if (interval == 0 || interval == 1) { - _this->egl_data->egl_swapinterval = interval; - } else { - return SDL_SetError("Only swap intervals of 0 or 1 are supported"); - } - - return 0; -} - -int -KMSDRM_GLES_SwapWindow(_THIS, SDL_Window * window) { - SDL_WindowData *wdata = ((SDL_WindowData *) window->driverdata); - SDL_DisplayData *displaydata = (SDL_DisplayData *) SDL_GetDisplayForWindow(window)->driverdata; - SDL_VideoData *vdata = ((SDL_VideoData *)_this->driverdata); - KMSDRM_FBInfo *fb_info; - int ret; - - /* Do we still need to wait for a flip? */ - int timeout = 0; - if (_this->egl_data->egl_swapinterval == 1) { - timeout = -1; - } - if (!KMSDRM_WaitPageFlip(_this, wdata, timeout)) { - return 0; - } - - /* Release previously displayed buffer (which is now the backbuffer) and lock a new one */ - if (wdata->next_bo != NULL) { - KMSDRM_gbm_surface_release_buffer(wdata->gs, wdata->current_bo); - /* SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "Released GBM surface %p", (void *)wdata->next_bo); */ - - wdata->current_bo = wdata->next_bo; - wdata->next_bo = NULL; - } - - if (!(_this->egl_data->eglSwapBuffers(_this->egl_data->egl_display, wdata->egl_surface))) { - SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "eglSwapBuffers failed."); - return 0; - } - - if (wdata->current_bo == NULL) { - wdata->current_bo = KMSDRM_gbm_surface_lock_front_buffer(wdata->gs); - if (wdata->current_bo == NULL) { - return 0; - } - } - - wdata->next_bo = KMSDRM_gbm_surface_lock_front_buffer(wdata->gs); - if (wdata->next_bo == NULL) { - SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "Could not lock GBM surface front buffer"); - return 0; - /* } else { - SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "Locked GBM surface %p", (void *)wdata->next_bo); */ - } - - fb_info = KMSDRM_FBFromBO(_this, wdata->next_bo); - if (fb_info == NULL) { - return 0; - } - if (_this->egl_data->egl_swapinterval == 0) { - /* Swap buffers instantly, possible tearing */ - /* SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "drmModeSetCrtc(%d, %u, %u, 0, 0, &%u, 1, &%ux%u@%u)", - vdata->drm_fd, displaydata->crtc_id, fb_info->fb_id, vdata->saved_conn_id, - displaydata->cur_mode.hdisplay, displaydata->cur_mode.vdisplay, displaydata->cur_mode.vrefresh); */ - ret = KMSDRM_drmModeSetCrtc(vdata->drm_fd, displaydata->crtc_id, fb_info->fb_id, - 0, 0, &vdata->saved_conn_id, 1, &displaydata->cur_mode); - if(ret != 0) { - SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "Could not pageflip with drmModeSetCrtc: %d", ret); - } - } else { - /* Queue page flip at vsync */ - - /* Have we already setup the CRTC to one of the GBM buffers? Do so if we have not, - or FlipPage won't work in some cases. */ - if (!wdata->crtc_ready) { - if(!KMSDRM_GLES_SetupCrtc(_this, window)) { - SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "Could not set up CRTC for doing vsync-ed pageflips"); - return 0; - } - } - - /* SDL_LogDebug(SDL_LOG_CATEGORY_VIDEO, "drmModePageFlip(%d, %u, %u, DRM_MODE_PAGE_FLIP_EVENT, &wdata->waiting_for_flip)", - vdata->drm_fd, displaydata->crtc_id, fb_info->fb_id); */ - ret = KMSDRM_drmModePageFlip(vdata->drm_fd, displaydata->crtc_id, fb_info->fb_id, - DRM_MODE_PAGE_FLIP_EVENT, &wdata->waiting_for_flip); - if (ret == 0) { - wdata->waiting_for_flip = SDL_TRUE; - } else { - SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "Could not queue pageflip: %d", ret); - } - - /* Wait immediately for vsync (as if we only had two buffers), for low input-lag scenarios. - Run your SDL2 program with "SDL_KMSDRM_DOUBLE_BUFFER=1 <program_name>" to enable this. */ - if (wdata->double_buffer) { - KMSDRM_WaitPageFlip(_this, wdata, -1); - } - } - - return 0; -} - -SDL_EGL_MakeCurrent_impl(KMSDRM) - -#endif /* SDL_VIDEO_DRIVER_KMSDRM && SDL_VIDEO_OPENGL_EGL */ - -/* vi: set ts=4 sw=4 expandtab: */ |