/* RetroArch - A frontend for libretro. * Copyright (C) 2010-2014 - Hans-Kristian Arntzen * Copyright (C) 2011-2017 - Daniel De Matteis * * RetroArch is free software: you can redistribute it and/or modify it under the terms * of the GNU General Public License as published by the Free Software Found- * ation, either version 3 of the License, or (at your option) any later version. * * RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR * PURPOSE. See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along with RetroArch. * If not, see . */ /* KMS/DRM context, running without any window manager. * Based on kmscube example by Rob Clark. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef HAVE_CONFIG_H #include "../../config.h" #endif #include "../../configuration.h" #include "../../verbosity.h" #include "../../frontend/frontend_driver.h" #include "../common/drm_common.h" #ifdef HAVE_EGL #include "../common/egl_common.h" #endif #include "../common/gl_common.h" #ifdef HAVE_OPENGLES #ifndef EGL_OPENGL_ES3_BIT_KHR #define EGL_OPENGL_ES3_BIT_KHR 0x0040 #endif #endif #ifndef EGL_PLATFORM_GBM_KHR #define EGL_PLATFORM_GBM_KHR 0x31D7 #endif typedef struct gfx_ctx_drm_data { #ifdef HAVE_EGL egl_ctx_data_t egl; #endif struct gbm_bo *bo; struct gbm_bo *next_bo; struct gbm_surface *gbm_surface; struct gbm_device *gbm_dev; int fd; int interval; unsigned fb_width; unsigned fb_height; bool core_hw_context_enable; bool waiting_for_flip; } gfx_ctx_drm_data_t; struct drm_fb { struct gbm_bo *bo; uint32_t fb_id; }; /* * https://github.com/libretro/RetroArch/pull/11590 * https://www.raspberrypi.org/documentation/configuration/config-txt/video.md */ typedef struct hdmi_timings { int h_active_pixels; /* Horizontal pixels (width) */ int h_sync_polarity; /* Invert HSync polarity */ int h_front_porch; /* Horizontal forward padding from DE active edge */ int h_sync_pulse; /* HSync pulse width in pixel clocks */ int h_back_porch; /* Vertical back padding from DE active edge */ int v_active_lines; /* Vertical pixels height (lines) */ int v_sync_polarity; /* Invert vsync polarity */ int v_front_porch; /* Vertical forward padding from DE active edge */ int v_sync_pulse; /* VSync pulse width in pixel clocks */ int v_back_porch; /* Vertical back padding from DE active edge */ int v_sync_offset_a; /* Leave at zero */ int v_sync_offset_b; /* Leave at zero */ int pixel_rep; /* Leave at zero */ int frame_rate; /* Screen refresh rate in Hz */ int interlaced; /* Leave at zero */ int pixel_freq; /* Clock frequency (width*height*framerate) */ int aspect_ratio; } hdmi_timings_t; static enum gfx_ctx_api drm_api = GFX_CTX_NONE; static drmModeModeInfo gfx_ctx_crt_switch_mode; static bool switch_mode = false; static float mode_vrefresh(drmModeModeInfo *mode) { return mode->clock * 1000.00 / (mode->htotal * mode->vtotal); } static void dump_mode(drmModeModeInfo *mode, int index) { RARCH_LOG("Mode details: #%i %s %.2f %d %d %d %d %d %d %d %d %d\n", index, mode->name, mode_vrefresh(mode), mode->hdisplay, mode->hsync_start, mode->hsync_end, mode->htotal, mode->vdisplay, mode->vsync_start, mode->vsync_end, mode->vtotal, mode->clock); } static EGLint *gfx_ctx_drm_egl_fill_attribs( gfx_ctx_drm_data_t *drm, EGLint *attr) { switch (drm_api) { #ifdef EGL_KHR_create_context case GFX_CTX_OPENGL_API: { bool debug = false; #ifdef HAVE_OPENGL unsigned version = drm->egl.major * 1000 + drm->egl.minor; bool core = version >= 3001; #ifdef GL_DEBUG debug = true; #else struct retro_hw_render_callback *hwr = video_driver_get_hw_context(); debug = hwr->debug_context; #endif if (core) { *attr++ = EGL_CONTEXT_MAJOR_VERSION_KHR; *attr++ = drm->egl.major; *attr++ = EGL_CONTEXT_MINOR_VERSION_KHR; *attr++ = drm->egl.minor; /* Technically, we don't have core/compat until 3.2. * Version 3.1 is either compat or not depending * on GL_ARB_compatibility. */ if (version >= 3002) { *attr++ = EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR; *attr++ = EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR; } } if (debug) { *attr++ = EGL_CONTEXT_FLAGS_KHR; *attr++ = EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR; } break; #endif } #endif case GFX_CTX_OPENGL_ES_API: #ifdef HAVE_OPENGLES *attr++ = EGL_CONTEXT_CLIENT_VERSION; *attr++ = drm->egl.major ? (EGLint)drm->egl.major : 2; #ifdef EGL_KHR_create_context if (drm->egl.minor > 0) { *attr++ = EGL_CONTEXT_MINOR_VERSION_KHR; *attr++ = drm->egl.minor; } #endif #endif break; case GFX_CTX_NONE: default: break; } *attr = EGL_NONE; return attr; } #ifdef HAVE_EGL static bool gbm_choose_xrgb8888_cb(void *display_data, EGLDisplay dpy, EGLConfig config) { EGLint r, g, b, id; (void)display_data; /* Makes sure we have 8 bit color. */ if (!egl_get_config_attrib(dpy, config, EGL_RED_SIZE, &r)) return false; if (!egl_get_config_attrib(dpy, config, EGL_GREEN_SIZE, &g)) return false; if (!egl_get_config_attrib(dpy, config, EGL_BLUE_SIZE, &b)) return false; if (r != 8 || g != 8 || b != 8) return false; if (!egl_get_config_attrib(dpy, config, EGL_NATIVE_VISUAL_ID, &id)) return false; return id == GBM_FORMAT_XRGB8888; } #define DRM_EGL_ATTRIBS_BASE \ EGL_SURFACE_TYPE, EGL_WINDOW_BIT, \ EGL_RED_SIZE, 1, \ EGL_GREEN_SIZE, 1, \ EGL_BLUE_SIZE, 1, \ EGL_ALPHA_SIZE, 0, \ EGL_DEPTH_SIZE, 0 static bool gfx_ctx_drm_egl_set_video_mode(gfx_ctx_drm_data_t *drm) { const EGLint *attrib_ptr = NULL; static const EGLint egl_attribs_gl[] = { DRM_EGL_ATTRIBS_BASE, EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT, EGL_NONE, }; static const EGLint egl_attribs_gles[] = { DRM_EGL_ATTRIBS_BASE, EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, EGL_NONE, }; #ifdef EGL_KHR_create_context static const EGLint egl_attribs_gles3[] = { DRM_EGL_ATTRIBS_BASE, EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT_KHR, EGL_NONE, }; #endif #ifdef HAVE_VG static const EGLint egl_attribs_vg[] = { DRM_EGL_ATTRIBS_BASE, EGL_RENDERABLE_TYPE, EGL_OPENVG_BIT, EGL_NONE, }; #endif EGLint major; EGLint minor; EGLint n; EGLint egl_attribs[16]; EGLint *egl_attribs_ptr = NULL; EGLint *attr = NULL; switch (drm_api) { case GFX_CTX_OPENGL_API: #ifdef HAVE_OPENGL attrib_ptr = egl_attribs_gl; break; case GFX_CTX_OPENGL_ES_API: #ifdef EGL_KHR_create_context if (drm->egl.major >= 3) attrib_ptr = egl_attribs_gles3; else #endif attrib_ptr = egl_attribs_gles; #endif break; case GFX_CTX_OPENVG_API: #ifdef HAVE_VG attrib_ptr = egl_attribs_vg; #endif break; case GFX_CTX_NONE: default: break; } #ifdef HAVE_EGL if (!egl_init_context(&drm->egl, EGL_PLATFORM_GBM_KHR, (EGLNativeDisplayType)drm->gbm_dev, &major, &minor, &n, attrib_ptr, gbm_choose_xrgb8888_cb)) goto error; attr = gfx_ctx_drm_egl_fill_attribs(drm, egl_attribs); egl_attribs_ptr = &egl_attribs[0]; if (!egl_create_context(&drm->egl, (attr != egl_attribs_ptr) ? egl_attribs_ptr : NULL)) goto error; if (!egl_create_surface(&drm->egl, (EGLNativeWindowType)drm->gbm_surface)) return false; switch (drm_api) { case GFX_CTX_OPENGL_API: case GFX_CTX_OPENGL_ES_API: #if defined(HAVE_OPENGL) || defined(HAVE_OPENGLES) gl_clear(); #endif break; case GFX_CTX_NONE: default: break; } #endif egl_swap_buffers(drm); return true; error: egl_report_error(); return false; } #endif /* Get the mode from video_state */ bool gfx_ctx_drm_get_mode_from_video_state(drmModeModeInfoPtr modeInfo) { video_driver_state_t *video_st = video_state_get_ptr(); if (video_st->crt_switch_st.vdisplay < 1) { return false; } modeInfo->clock = video_st->crt_switch_st.clock; modeInfo->hdisplay = video_st->crt_switch_st.hdisplay; modeInfo->hsync_start = video_st->crt_switch_st.hsync_start; modeInfo->hsync_end = video_st->crt_switch_st.hsync_end; modeInfo->htotal = video_st->crt_switch_st.htotal; modeInfo->vdisplay = video_st->crt_switch_st.vdisplay; modeInfo->vsync_start = video_st->crt_switch_st.vsync_start; modeInfo->vsync_end = video_st->crt_switch_st.vsync_end; modeInfo->vtotal = video_st->crt_switch_st.vtotal; modeInfo->flags = (video_st->crt_switch_st.interlace ? DRM_MODE_FLAG_INTERLACE : 0) | (video_st->crt_switch_st.doublescan ? DRM_MODE_FLAG_DBLSCAN : 0) | (video_st->crt_switch_st.hsync ? DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC) | (video_st->crt_switch_st.vsync ? DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC); modeInfo->hskew = 0; modeInfo->vscan = 0; modeInfo->vrefresh = video_st->crt_switch_st.vrefresh; modeInfo->type = DRM_MODE_TYPE_USERDEF; snprintf(modeInfo->name, 45, "RetroArch_CRT-%dx%d@%.02f%s" , video_st->crt_switch_st.hdisplay , video_st->crt_switch_st.vdisplay , mode_vrefresh(modeInfo) , video_st->crt_switch_st.interlace ? "i" : ""); dump_mode(modeInfo, 0); /* consider the mode read and removed */ video_st->crt_switch_st.vdisplay = 0; return true; } /* Load custom hdmi timings from config */ static bool gfx_ctx_drm_load_mode(drmModeModeInfoPtr modeInfo) { settings_t *settings = config_get_ptr(); char *crt_switch_timings = settings->arrays.crt_switch_timings; if(modeInfo && !string_is_empty(crt_switch_timings)) { hdmi_timings_t timings; int ret = sscanf(crt_switch_timings, "%d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d %d", &timings.h_active_pixels, &timings.h_sync_polarity, &timings.h_front_porch, &timings.h_sync_pulse, &timings.h_back_porch, &timings.v_active_lines, &timings.v_sync_polarity, &timings.v_front_porch, &timings.v_sync_pulse, &timings.v_back_porch, &timings.v_sync_offset_a, &timings.v_sync_offset_b, &timings.pixel_rep, &timings.frame_rate, &timings.interlaced, &timings.pixel_freq, &timings.aspect_ratio); if (ret != 17) { RARCH_ERR("[DRM]: malformed mode requested: %s\n", crt_switch_timings); return false; } memset(modeInfo, 0, sizeof(drmModeModeInfo)); modeInfo->clock = timings.pixel_freq / 1000; modeInfo->hdisplay = timings.h_active_pixels; modeInfo->hsync_start = modeInfo->hdisplay + timings.h_front_porch; modeInfo->hsync_end = modeInfo->hsync_start + timings.h_sync_pulse; modeInfo->htotal = modeInfo->hsync_end + timings.h_back_porch; modeInfo->hskew = 0; modeInfo->vdisplay = timings.v_active_lines; modeInfo->vsync_start = modeInfo->vdisplay + (timings.v_front_porch * (timings.interlaced ? 2 : 1)); modeInfo->vsync_end = modeInfo->vsync_start + (timings.v_sync_pulse * (timings.interlaced ? 2 : 1)); modeInfo->vtotal = modeInfo->vsync_end + (timings.v_back_porch * (timings.interlaced ? 2 : 1)); modeInfo->vscan = 0; /* TODO: ?? */ modeInfo->vrefresh = timings.frame_rate; modeInfo->flags = timings.interlaced ? DRM_MODE_FLAG_INTERLACE : 0; modeInfo->flags |= timings.v_sync_polarity ? DRM_MODE_FLAG_NVSYNC : DRM_MODE_FLAG_PVSYNC; modeInfo->flags |= timings.h_sync_polarity ? DRM_MODE_FLAG_NHSYNC : DRM_MODE_FLAG_PHSYNC; modeInfo->type = 0; snprintf(modeInfo->name, DRM_DISPLAY_MODE_LEN, "CRT_%ux%u_%u", modeInfo->hdisplay, modeInfo->vdisplay, modeInfo->vrefresh); return true; } return false; } static void drm_fb_destroy_callback(struct gbm_bo *bo, void *data) { struct drm_fb *fb = (struct drm_fb*)data; if (fb && fb->fb_id) drmModeRmFB(g_drm_fd, fb->fb_id); free(fb); } static struct drm_fb *drm_fb_get_from_bo(struct gbm_bo *bo) { int ret; unsigned width, height, stride, handle; struct drm_fb *fb = (struct drm_fb*)calloc(1, sizeof(*fb)); fb->bo = bo; width = gbm_bo_get_width(bo); height = gbm_bo_get_height(bo); stride = gbm_bo_get_stride(bo); handle = gbm_bo_get_handle(bo).u32; RARCH_LOG("[KMS]: New FB: %ux%u (stride: %u).\n", width, height, stride); ret = drmModeAddFB(g_drm_fd, width, height, 24, 32, stride, handle, &fb->fb_id); if (ret < 0) goto error; gbm_bo_set_user_data(bo, fb, drm_fb_destroy_callback); return fb; error: RARCH_ERR("[KMS]: Failed to create FB.\n"); free(fb); return NULL; } static void gfx_ctx_drm_swap_interval(void *data, int interval) { gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data; drm->interval = interval; if (interval > 1) RARCH_WARN("[KMS]: Swap intervals > 1 currently not supported. Will use swap interval of 1.\n"); } static void gfx_ctx_drm_check_window(void *data, bool *quit, bool *resize, unsigned *width, unsigned *height) { *resize = false; *quit = (bool)frontend_driver_get_signal_handler_state(); *width = g_drm_mode->hdisplay; *height = g_drm_mode->vdisplay; } static void drm_flip_handler(int fd, unsigned frame, unsigned sec, unsigned usec, void *data) { #if 0 static unsigned first_page_flip; static unsigned last_page_flip; if (!first_page_flip) first_page_flip = frame; if (last_page_flip) { unsigned missed = frame - last_page_flip - 1; if (missed) RARCH_LOG("[KMS]: Missed %u VBlank(s) (Frame: %u, DRM frame: %u).\n", missed, frame - first_page_flip, frame); } last_page_flip = frame; #endif *(bool*)data = false; } static bool gfx_ctx_drm_wait_flip(gfx_ctx_drm_data_t *drm, bool block) { int timeout = 0; if (!drm->waiting_for_flip) return false; if (block) timeout = -1; while (drm->waiting_for_flip) { if (!drm_wait_flip(timeout)) break; } if (drm->waiting_for_flip) return true; /* Page flip has taken place. */ /* This buffer is not on-screen anymore. Release it to GBM. */ gbm_surface_release_buffer(drm->gbm_surface, drm->bo); /* This buffer is being shown now. */ drm->bo = drm->next_bo; return false; } static bool gfx_ctx_drm_queue_flip(gfx_ctx_drm_data_t *drm) { struct drm_fb *fb = NULL; drm->next_bo = gbm_surface_lock_front_buffer(drm->gbm_surface); fb = (struct drm_fb*)gbm_bo_get_user_data(drm->next_bo); if (!fb) fb = (struct drm_fb*)drm_fb_get_from_bo(drm->next_bo); if (switch_mode) { RARCH_DBG("[KMS]: modeswitch detected, creating the new CRTC\n"); drmModeSetCrtc(g_drm_fd, g_crtc_id, fb->fb_id, 0, 0, &g_connector_id, 1, g_drm_mode); switch_mode = false; } if (drmModePageFlip(g_drm_fd, g_crtc_id, fb->fb_id, DRM_MODE_PAGE_FLIP_EVENT, &drm->waiting_for_flip) == 0) return true; /* Failed to queue page flip. */ return false; } static void gfx_ctx_drm_swap_buffers(void *data) { gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data; settings_t *settings = config_get_ptr(); unsigned max_swapchain_images = settings->uints.video_max_swapchain_images; /* Recreate the surface */ //* if(switch_mode) { RARCH_DBG("[KMS]: modeswitch detected, doing GBM and EGL stuff\n"); if (drm->gbm_surface) { if (drm->bo) gbm_surface_release_buffer(drm->gbm_surface, drm->bo); if (drm->next_bo) gbm_surface_release_buffer(drm->gbm_surface, drm->bo); egl_ctx_data_t *egl = &drm->egl; eglDestroySurface(egl->dpy, egl->surf); gbm_surface_destroy(drm->gbm_surface); } drm->gbm_surface = gbm_surface_create( drm->gbm_dev, drm->fb_width, drm->fb_height, GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING); if (!drm->gbm_surface) { RARCH_ERR("[KMS/EGL]: Couldn't create GBM surface.\n"); } /* Creates an EGL surface and make it current */ egl_create_surface(&drm->egl, (EGLNativeWindowType)drm->gbm_surface); egl_bind_hw_render(&drm->egl, true); } #ifdef HAVE_EGL egl_swap_buffers(&drm->egl); #endif /* I guess we have to wait for flip to have taken * place before another flip can be queued up. * * If true, we are still waiting for a flip * (nonblocking mode, so just drop the frame). */ if (gfx_ctx_drm_wait_flip(drm, drm->interval)) return; drm->waiting_for_flip = gfx_ctx_drm_queue_flip(drm); /* Triple-buffered page flips */ if (max_swapchain_images >= 3 && gbm_surface_has_free_buffers(drm->gbm_surface)) return; gfx_ctx_drm_wait_flip(drm, true); } static void gfx_ctx_drm_get_video_size(void *data, unsigned *width, unsigned *height) { gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data; if (!drm) return; *width = drm->fb_width; *height = drm->fb_height; } static void gfx_ctx_drm_get_video_output_size(void *data, unsigned *width, unsigned *height, char *desc, size_t desc_len) { gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data; if (!drm) return; *width = drm->fb_width; *height = drm->fb_height; } static void free_drm_resources(gfx_ctx_drm_data_t *drm) { if (!drm) return; /* Restore original CRTC. */ drm_restore_crtc(); if (drm->gbm_surface) gbm_surface_destroy(drm->gbm_surface); if (drm->gbm_dev) gbm_device_destroy(drm->gbm_dev); drm_free(); if (drm->fd >= 0) { if (g_drm_fd >= 0) { drmDropMaster(g_drm_fd); close(drm->fd); } } drm->gbm_surface = NULL; drm->gbm_dev = NULL; g_drm_fd = -1; } static void gfx_ctx_drm_destroy_resources(gfx_ctx_drm_data_t *drm) { if (!drm) return; /* Make sure we acknowledge all page-flips. */ gfx_ctx_drm_wait_flip(drm, true); #ifdef HAVE_EGL egl_destroy(&drm->egl); #endif free_drm_resources(drm); g_drm_mode = NULL; g_crtc_id = 0; g_connector_id = 0; drm->fb_width = 0; drm->fb_height = 0; drm->bo = NULL; drm->next_bo = NULL; } static void *gfx_ctx_drm_init(void *video_driver) { int fd, i; unsigned monitor_index; unsigned gpu_index = 0; const char *gpu = NULL; struct string_list *gpu_descriptors = NULL; settings_t *settings = config_get_ptr(); gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*) calloc(1, sizeof(gfx_ctx_drm_data_t)); unsigned video_monitor_index = settings->uints.video_monitor_index; if (!drm) return NULL; drm->fd = -1; gpu_descriptors = dir_list_new("/dev/dri", NULL, false, true, false, false); nextgpu: free_drm_resources(drm); if (!gpu_descriptors || gpu_index == gpu_descriptors->size) { RARCH_ERR("[KMS]: Couldn't find a suitable DRM device.\n"); goto error; } gpu = gpu_descriptors->elems[gpu_index++].data; drm->fd = open(gpu, O_RDWR); if (drm->fd < 0) { RARCH_WARN("[KMS]: Couldn't open DRM device.\n"); goto nextgpu; } fd = drm->fd; if (!drm_get_resources(fd)) goto nextgpu; if (!drm_get_connector(fd, video_monitor_index)) goto nextgpu; if (!drm_get_encoder(fd)) goto nextgpu; drm_setup(fd); /* Choose the optimal video mode for get_video_size(): - video mode issued by switchres through the CRT module - custom timings from configuration - else the current video mode from the CRTC - otherwise pick first connector mode */ if (gfx_ctx_drm_get_mode_from_video_state(&gfx_ctx_crt_switch_mode)) { drm->fb_width = gfx_ctx_crt_switch_mode.hdisplay; drm->fb_height = gfx_ctx_crt_switch_mode.vdisplay; } else if (gfx_ctx_drm_load_mode(&gfx_ctx_crt_switch_mode)) { drm->fb_width = gfx_ctx_crt_switch_mode.hdisplay; drm->fb_height = gfx_ctx_crt_switch_mode.vdisplay; } else if (g_orig_crtc->mode_valid) { drm->fb_width = g_orig_crtc->mode.hdisplay; drm->fb_height = g_orig_crtc->mode.vdisplay; } else { drm->fb_width = g_drm_connector->modes[0].hdisplay; drm->fb_height = g_drm_connector->modes[0].vdisplay; } drmSetMaster(g_drm_fd); drm->gbm_dev = gbm_create_device(fd); if (!drm->gbm_dev) { RARCH_WARN("[KMS]: Couldn't create GBM device.\n"); goto nextgpu; } dir_list_free(gpu_descriptors); /* Setup the flip handler. */ g_drm_fds.fd = fd; g_drm_fds.events = POLLIN; g_drm_evctx.version = DRM_EVENT_CONTEXT_VERSION; g_drm_evctx.page_flip_handler = drm_flip_handler; g_drm_fd = fd; video_driver_display_type_set(RARCH_DISPLAY_KMS); return drm; error: dir_list_free(gpu_descriptors); gfx_ctx_drm_destroy_resources(drm); if (drm) free(drm); return NULL; } static bool gfx_ctx_drm_set_video_mode(void *data, unsigned width, unsigned height, bool fullscreen) { float refresh_mod; int i, ret = 0; struct drm_fb *fb = NULL; gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data; settings_t *settings = config_get_ptr(); unsigned black_frame_insertion = settings->uints.video_black_frame_insertion; float video_refresh_rate = settings->floats.video_refresh_rate; if (!drm) return false; frontend_driver_install_signal_handler(); /* If we use black frame insertion, * we fake a 60 Hz monitor for 120 Hz one, * etc, so try to match that. */ refresh_mod = 1.0f / (black_frame_insertion + 1.0f); /* Find desired video mode, and use that. * If not fullscreen, we get desired windowed size, * which is not appropriate. */ if(gfx_ctx_drm_get_mode_from_video_state(&gfx_ctx_crt_switch_mode)) { RARCH_DBG("[KMS]: New mode detected: %dx%d\n", gfx_ctx_crt_switch_mode.hdisplay, gfx_ctx_crt_switch_mode.vdisplay); g_drm_mode = &gfx_ctx_crt_switch_mode; drm->fb_width = gfx_ctx_crt_switch_mode.hdisplay; drm->fb_height = gfx_ctx_crt_switch_mode.vdisplay; switch_mode = true; /* Let's exit, since modeswitching will happen while swapping buffers */ return true; } if ((width == 0 && height == 0) || !fullscreen) { g_drm_mode = &g_drm_connector->modes[0]; RARCH_WARN("[KMS]: Falling back to mode 0 (default)\n"); } else { /* check if custom HDMI timings were asked */ if (gfx_ctx_crt_switch_mode.vdisplay > 0) { g_drm_mode = &gfx_ctx_crt_switch_mode; RARCH_LOG("[DRM]: custom mode requested: %s\n", gfx_ctx_crt_switch_mode.name); } else { /* Try to match refresh_rate as closely as possible. * * Lower resolutions tend to have multiple supported * refresh rates as well. */ drmModeModeInfo *mode = NULL; float minimum_fps_diff = 0.0f; float mode_vrefresh = 0.0f; g_drm_mode = 0; /* Find best match. */ for (i = 0; i < g_drm_connector->count_modes; i++) { float diff; mode = &g_drm_connector->modes[i]; if ( (width != mode->hdisplay) || (height != mode->vdisplay)) continue; mode_vrefresh = drm_calc_refresh_rate(mode); diff = fabsf(refresh_mod * mode_vrefresh - video_refresh_rate); if (!g_drm_mode || diff < minimum_fps_diff) { g_drm_mode = mode; minimum_fps_diff = diff; } } } } if (!g_drm_mode) { RARCH_ERR("[KMS/EGL]: Did not find suitable video mode for %u x %u.\n", width, height); goto error; } drm->fb_width = g_drm_mode->hdisplay; drm->fb_height = g_drm_mode->vdisplay; /* Create GBM surface. */ drm->gbm_surface = gbm_surface_create( drm->gbm_dev, drm->fb_width, drm->fb_height, GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING); if (!drm->gbm_surface) { RARCH_ERR("[KMS/EGL]: Couldn't create GBM surface.\n"); goto error; } #ifdef HAVE_EGL if (!gfx_ctx_drm_egl_set_video_mode(drm)) goto error; #endif drm->bo = gbm_surface_lock_front_buffer(drm->gbm_surface); if (!(fb = (struct drm_fb*)gbm_bo_get_user_data(drm->bo))) fb = drm_fb_get_from_bo(drm->bo); if ((ret = drmModeSetCrtc(g_drm_fd, g_crtc_id, fb->fb_id, 0, 0, &g_connector_id, 1, g_drm_mode)) < 0) goto error; return true; error: gfx_ctx_drm_destroy_resources(drm); RARCH_ERR("[KMS]: Error when switching mode.\n"); if (drm) free(drm); return false; } static void gfx_ctx_drm_destroy(void *data) { gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data; if (!drm) return; gfx_ctx_drm_destroy_resources(drm); free(drm); } static void gfx_ctx_drm_input_driver(void *data, const char *joypad_name, input_driver_t **input, void **input_data) { #ifdef HAVE_X11 settings_t *settings = config_get_ptr(); /* We cannot use the X11 input driver for DRM/KMS */ if (string_is_equal(settings->arrays.input_driver, "x")) { #ifdef HAVE_UDEV { /* Try to set it to udev instead */ void *udev = input_driver_init_wrap(&input_udev, joypad_name); if (udev) { *input = &input_udev; *input_data = udev; return; } } #endif #if defined(__linux__) && !defined(ANDROID) { /* Try to set it to linuxraw instead */ void *linuxraw = input_driver_init_wrap(&input_linuxraw, joypad_name); if (linuxraw) { *input = &input_linuxraw; *input_data = linuxraw; return; } } #endif } #endif *input = NULL; *input_data = NULL; } static bool gfx_ctx_drm_has_focus(void *data) { return true; } static bool gfx_ctx_drm_suppress_screensaver(void *data, bool enable) { return false; } static enum gfx_ctx_api gfx_ctx_drm_get_api(void *data) { return drm_api; } static bool gfx_ctx_drm_bind_api(void *video_driver, enum gfx_ctx_api api, unsigned major, unsigned minor) { drm_api = api; #ifdef HAVE_EGL g_egl_major = major; g_egl_minor = minor; #endif switch (api) { case GFX_CTX_OPENGL_API: #if defined(HAVE_EGL) && defined(HAVE_OPENGL) #ifndef EGL_KHR_create_context if ((major * 1000 + minor) >= 3001) return false; #endif return egl_bind_api(EGL_OPENGL_API); #else break; #endif case GFX_CTX_OPENGL_ES_API: #if defined(HAVE_EGL) && defined(HAVE_OPENGLES) #ifndef EGL_KHR_create_context if (major >= 3) return false; #endif return egl_bind_api(EGL_OPENGL_ES_API); #else break; #endif case GFX_CTX_OPENVG_API: #if defined(HAVE_EGL) && defined(HAVE_VG) return egl_bind_api(EGL_OPENVG_API); #endif case GFX_CTX_NONE: default: break; } return false; } static void gfx_ctx_drm_bind_hw_render(void *data, bool enable) { #ifdef HAVE_EGL gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data; egl_bind_hw_render(&drm->egl, enable); #endif } static uint32_t gfx_ctx_drm_get_flags(void *data) { uint32_t flags = 0; gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data; BIT32_SET(flags, GFX_CTX_FLAGS_CUSTOMIZABLE_SWAPCHAIN_IMAGES); if (drm->core_hw_context_enable) BIT32_SET(flags, GFX_CTX_FLAGS_GL_CORE_CONTEXT); if (string_is_equal(video_driver_get_ident(), "glcore")) { #if defined(HAVE_SLANG) && defined(HAVE_SPIRV_CROSS) BIT32_SET(flags, GFX_CTX_FLAGS_SHADERS_SLANG); #endif } else BIT32_SET(flags, GFX_CTX_FLAGS_SHADERS_GLSL); BIT32_SET(flags, GFX_CTX_FLAGS_CRT_SWITCHRES); return flags; } static void gfx_ctx_drm_set_flags(void *data, uint32_t flags) { gfx_ctx_drm_data_t *drm = (gfx_ctx_drm_data_t*)data; if (BIT32_GET(flags, GFX_CTX_FLAGS_GL_CORE_CONTEXT)) drm->core_hw_context_enable = true; } const gfx_ctx_driver_t gfx_ctx_drm = { gfx_ctx_drm_init, gfx_ctx_drm_destroy, gfx_ctx_drm_get_api, gfx_ctx_drm_bind_api, gfx_ctx_drm_swap_interval, gfx_ctx_drm_set_video_mode, gfx_ctx_drm_get_video_size, drm_get_refresh_rate, gfx_ctx_drm_get_video_output_size, NULL, /* get_video_output_prev */ NULL, /* get_video_output_next */ NULL, /* get_metrics */ NULL, NULL, /* update_title */ gfx_ctx_drm_check_window, NULL, /* set_resize */ gfx_ctx_drm_has_focus, gfx_ctx_drm_suppress_screensaver, false, /* has_windowed */ gfx_ctx_drm_swap_buffers, gfx_ctx_drm_input_driver, #ifdef HAVE_EGL egl_get_proc_address, #else NULL, #endif NULL, NULL, NULL, "kms", gfx_ctx_drm_get_flags, gfx_ctx_drm_set_flags, gfx_ctx_drm_bind_hw_render, NULL, NULL };