diff options
Diffstat (limited to 'setup/display.c')
| -rw-r--r-- | setup/display.c | 759 |
1 files changed, 0 insertions, 759 deletions
diff --git a/setup/display.c b/setup/display.c deleted file mode 100644 index f15b2b06..00000000 --- a/setup/display.c +++ /dev/null @@ -1,759 +0,0 @@ -// Emacs style mode select -*- C++ -*- -//----------------------------------------------------------------------------- -// -// Copyright(C) 2006 Simon Howard -// -// This program 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 Foundation; either version 2 -// of the License, or (at your option) any later version. -// -// This program 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 this program; if not, write to the Free Software -// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA -// 02111-1307, USA. -// - -#include <string.h> - -#ifdef _WIN32_WCE -#include "libc_wince.h" -#endif - -#include "textscreen.h" - -#include "display.h" - -extern void RestartTextscreen(void); - -typedef struct -{ - char *description; - int bpp; -} pixel_depth_t; - -// List of supported pixel depths. - -static pixel_depth_t pixel_depths[] = -{ - { "8-bit", 8 }, - { "16-bit", 16 }, - { "24-bit", 24 }, - { "32-bit", 32 }, -}; - -// List of strings containing supported pixel depths. - -static char **supported_bpps; -static int num_supported_bpps; - -typedef struct -{ - int w, h; -} screen_mode_t; - -// List of aspect ratio-uncorrected modes - -static screen_mode_t screen_modes_unscaled[] = -{ - { 320, 200 }, - { 640, 400 }, - { 960, 600 }, - { 1280, 800 }, - { 1600, 1000 }, - { 0, 0}, -}; - -// List of aspect ratio-corrected modes - -static screen_mode_t screen_modes_scaled[] = -{ - { 256, 200 }, - { 320, 240 }, - { 512, 400 }, - { 640, 480 }, - { 800, 600 }, - { 960, 720 }, - { 1024, 800 }, - { 1280, 960 }, - { 1280, 1000 }, - { 1600, 1200 }, - { 0, 0}, -}; - -// List of fullscreen modes generated at runtime - -static screen_mode_t *screen_modes_fullscreen = NULL; -static int num_screen_modes_fullscreen; - -static int vidmode = 0; - -char *video_driver = ""; -int autoadjust_video_settings = 1; -int aspect_ratio_correct = 1; -int fullscreen = 1; -int screen_width = 320; -int screen_height = 200; -int screen_bpp = 8; -int startup_delay = 1000; -int show_endoom = 1; - -// These are the last screen width/height values that were chosen by the -// user. These are used when finding the "nearest" mode, so when -// changing the fullscreen / aspect ratio options, the setting does not -// jump around. - -static int selected_screen_width = 0, selected_screen_height; - -// Index into the supported_bpps of the selected pixel depth. - -static int selected_bpp = 0; - -static int system_video_env_set; - -// Set the SDL_VIDEODRIVER environment variable - -void SetDisplayDriver(void) -{ - static int first_time = 1; - - if (first_time) - { - system_video_env_set = getenv("SDL_VIDEODRIVER") != NULL; - - first_time = 0; - } - - // Don't override the command line environment, if it has been set. - - if (system_video_env_set) - { - return; - } - - // Use the value from the configuration file, if it has been set. - - if (strcmp(video_driver, "") != 0) - { - char *env_string; - - env_string = malloc(strlen(video_driver) + 30); - sprintf(env_string, "SDL_VIDEODRIVER=%s", video_driver); - putenv(env_string); - free(env_string); - } - else - { -#if defined(_WIN32) && !defined(_WIN32_WCE) - // On Windows, use DirectX over windib by default. - - putenv("SDL_VIDEODRIVER=directx"); -#endif - } -} - -// Query SDL as to whether any fullscreen modes are available for the -// specified pixel depth. - -static int PixelDepthSupported(int bpp) -{ - SDL_PixelFormat format; - SDL_Rect **modes; - - format.BitsPerPixel = bpp; - format.BytesPerPixel = (bpp + 7) / 8; - - modes = SDL_ListModes(&format, SDL_FULLSCREEN); - - return modes != NULL; -} - -// Query SDL and populate the supported_bpps array. - -static void IdentifyPixelDepths(void) -{ - unsigned int i; - unsigned int num_depths = sizeof(pixel_depths) / sizeof(*pixel_depths); - - if (supported_bpps != NULL) - { - free(supported_bpps); - } - - supported_bpps = malloc(sizeof(char *) * num_depths); - num_supported_bpps = 0; - - // Check each bit depth to determine if modes are available. - - for (i = 0; i < num_depths; ++i) - { - // If modes are available, add this bit depth to the list. - - if (PixelDepthSupported(pixel_depths[i].bpp)) - { - supported_bpps[num_supported_bpps] = pixel_depths[i].description; - ++num_supported_bpps; - } - } - - // No supported pixel depths? That's kind of a problem. Add 8bpp - // as a fallback. - - if (num_supported_bpps == 0) - { - supported_bpps[0] = pixel_depths[0].description; - ++num_supported_bpps; - } -} - -// Get the screen pixel depth corresponding to what selected_bpp is set to. - -static int GetSelectedBPP(void) -{ - unsigned int num_depths = sizeof(pixel_depths) / sizeof(*pixel_depths); - unsigned int i; - - // Find which pixel depth is selected, and set screen_bpp. - - for (i = 0; i < num_depths; ++i) - { - if (pixel_depths[i].description == supported_bpps[selected_bpp]) - { - return pixel_depths[i].bpp; - } - } - - // Default fallback value. - - return 8; -} - -// Get the index into supported_bpps of the specified pixel depth string. - -static int GetSupportedBPPIndex(char *description) -{ - unsigned int i; - - for (i = 0; i < num_supported_bpps; ++i) - { - if (supported_bpps[i] == description) - { - return i; - } - } - - return -1; -} - -// Set selected_bpp to match screen_bpp. - -static int TrySetSelectedBPP(void) -{ - unsigned int num_depths = sizeof(pixel_depths) / sizeof(*pixel_depths); - unsigned int i; - - // Search pixel_depths, find the bpp that corresponds to screen_bpp, - // then set selected_bpp to match. - - for (i = 0; i < num_depths; ++i) - { - if (pixel_depths[i].bpp == screen_bpp) - { - selected_bpp = GetSupportedBPPIndex(pixel_depths[i].description); - - if (selected_bpp >= 0) - { - return 1; - } - } - } - - return 0; -} - -static void SetSelectedBPP(void) -{ - const SDL_VideoInfo *info; - - if (TrySetSelectedBPP()) - { - return; - } - - // screen_bpp does not match any supported pixel depth. Query SDL - // to find out what it recommends using. - - info = SDL_GetVideoInfo(); - - if (info != NULL && info->vfmt != NULL) - { - screen_bpp = info->vfmt->BitsPerPixel; - } - - // Try again. - - if (!TrySetSelectedBPP()) - { - // Give up and just use the first in the list. - - selected_bpp = 0; - screen_bpp = GetSelectedBPP(); - } -} - -static void ModeSelected(TXT_UNCAST_ARG(widget), TXT_UNCAST_ARG(mode)) -{ - TXT_CAST_ARG(screen_mode_t, mode); - - screen_width = mode->w; - screen_height = mode->h; - - // This is now the most recently selected screen width - - selected_screen_width = screen_width; - selected_screen_height = screen_height; -} - -static int GoodFullscreenMode(screen_mode_t *mode) -{ - int w, h; - - w = mode->w; - h = mode->h; - - // 320x200 and 640x400 are always good (special case) - - if ((w == 320 && h == 200) || (w == 640 && h == 400)) - { - return 1; - } - - // Special case: 320x240 letterboxed mode is okay (but not aspect - // ratio corrected 320x240) - - if (w == 320 && h == 240 && !aspect_ratio_correct) - { - return 1; - } - - // Ignore all modes less than 640x480 - - return w >= 640 && h >= 480; -} - -// Build screen_modes_fullscreen - -static void BuildFullscreenModesList(void) -{ - SDL_PixelFormat format; - SDL_Rect **modes; - screen_mode_t *m1; - screen_mode_t *m2; - screen_mode_t m; - int num_modes; - int i; - - // Free the existing modes list, if one exists - - if (screen_modes_fullscreen != NULL) - { - free(screen_modes_fullscreen); - } - - // Get a list of fullscreen modes and find out how many - // modes are in the list. - - format.BitsPerPixel = screen_bpp; - format.BytesPerPixel = (screen_bpp + 7) / 8; - - modes = SDL_ListModes(&format, SDL_FULLSCREEN); - - if (modes == NULL || modes == (SDL_Rect **) -1) - { - num_modes = 0; - } - else - { - for (num_modes=0; modes[num_modes] != NULL; ++num_modes); - } - - // Build the screen_modes_fullscreen array - - screen_modes_fullscreen = malloc(sizeof(screen_mode_t) * (num_modes + 1)); - - for (i=0; i<num_modes; ++i) - { - screen_modes_fullscreen[i].w = modes[i]->w; - screen_modes_fullscreen[i].h = modes[i]->h; - } - - screen_modes_fullscreen[i].w = 0; - screen_modes_fullscreen[i].h = 0; - - // Reverse the order of the modes list (smallest modes first) - - for (i=0; i<num_modes / 2; ++i) - { - m1 = &screen_modes_fullscreen[i]; - m2 = &screen_modes_fullscreen[num_modes - 1 - i]; - - memcpy(&m, m1, sizeof(screen_mode_t)); - memcpy(m1, m2, sizeof(screen_mode_t)); - memcpy(m2, &m, sizeof(screen_mode_t)); - } - - num_screen_modes_fullscreen = num_modes; -} - -static int FindBestMode(screen_mode_t *modes) -{ - int i; - int best_mode; - int best_mode_diff; - int diff; - - best_mode = -1; - best_mode_diff = 0; - - for (i=0; modes[i].w != 0; ++i) - { - if (fullscreen && !GoodFullscreenMode(&modes[i])) - { - continue; - } - - diff = (selected_screen_width - modes[i].w) - * (selected_screen_width - modes[i].w) - + (selected_screen_height - modes[i].h) - * (selected_screen_height - modes[i].h); - - if (best_mode == -1 || diff < best_mode_diff) - { - best_mode_diff = diff; - best_mode = i; - } - } - - return best_mode; -} - -static void GenerateModesTable(TXT_UNCAST_ARG(widget), - TXT_UNCAST_ARG(modes_table)) -{ - TXT_CAST_ARG(txt_table_t, modes_table); - char buf[15]; - screen_mode_t *modes; - txt_radiobutton_t *rbutton; - int i; - - // Pick which modes list to use - - if (fullscreen) - { - if (screen_modes_fullscreen == NULL) - { - BuildFullscreenModesList(); - } - - modes = screen_modes_fullscreen; - } - else if (aspect_ratio_correct) - { - modes = screen_modes_scaled; - } - else - { - modes = screen_modes_unscaled; - } - - // Build the table - - TXT_ClearTable(modes_table); - TXT_SetColumnWidths(modes_table, 14, 14, 14, 14, 14); - - for (i=0; modes[i].w != 0; ++i) - { - // Skip bad fullscreen modes - - if (fullscreen && !GoodFullscreenMode(&modes[i])) - { - continue; - } - - sprintf(buf, "%ix%i", modes[i].w, modes[i].h); - rbutton = TXT_NewRadioButton(buf, &vidmode, i); - TXT_AddWidget(modes_table, rbutton); - TXT_SignalConnect(rbutton, "selected", ModeSelected, &modes[i]); - } - - // Find the nearest mode in the list that matches the current - // settings - - vidmode = FindBestMode(modes); - - if (vidmode > 0) - { - screen_width = modes[vidmode].w; - screen_height = modes[vidmode].h; - } -} - -// Callback invoked when the BPP selector is changed. - -static void UpdateBPP(TXT_UNCAST_ARG(widget), TXT_UNCAST_ARG(modes_table)) -{ - TXT_CAST_ARG(txt_table_t, modes_table); - - screen_bpp = GetSelectedBPP(); - - // Rebuild list of fullscreen modes. - - BuildFullscreenModesList(); - GenerateModesTable(NULL, modes_table); -} - -static void UpdateModeSeparator(TXT_UNCAST_ARG(widget), - TXT_UNCAST_ARG(separator)) -{ - TXT_CAST_ARG(txt_separator_t, separator); - - if (fullscreen) - { - TXT_SetSeparatorLabel(separator, "Screen mode"); - } - else - { - TXT_SetSeparatorLabel(separator, "Window size"); - } -} - -#if defined(_WIN32) && !defined(_WIN32_WCE) - -static int use_directx = 1; - -static void SetWin32VideoDriver(void) -{ - if (!strcmp(video_driver, "windib")) - { - use_directx = 0; - } - else - { - use_directx = 1; - } -} - -static void UpdateVideoDriver(TXT_UNCAST_ARG(widget), - TXT_UNCAST_ARG(modes_table)) -{ - TXT_CAST_ARG(txt_table_t, modes_table); - - if (use_directx) - { - video_driver = ""; - } - else - { - video_driver = "windib"; - } - - // When the video driver is changed, we need to restart the textscreen - // library. - - RestartTextscreen(); - - // Rebuild the list of supported pixel depths. - - IdentifyPixelDepths(); - SetSelectedBPP(); - - // Rebuild the video modes list - - BuildFullscreenModesList(); - GenerateModesTable(NULL, modes_table); -} - -#endif - -static void AdvancedDisplayConfig(TXT_UNCAST_ARG(widget), - TXT_UNCAST_ARG(modes_table)) -{ - TXT_CAST_ARG(txt_table_t, modes_table); - txt_window_t *window; - txt_checkbox_t *ar_checkbox; - - window = TXT_NewWindow("Advanced display options"); - - TXT_SetColumnWidths(window, 35); - - TXT_AddWidgets(window, - ar_checkbox = TXT_NewCheckBox("Fix aspect ratio", - &aspect_ratio_correct), - TXT_NewCheckBox("Show ENDOOM screen on exit", &show_endoom), - NULL); - - TXT_SignalConnect(ar_checkbox, "changed", GenerateModesTable, modes_table); - - // On Windows, there is an extra control to change between - // the Windows GDI and DirectX video drivers. - -#if defined(_WIN32) && !defined(_WIN32_WCE) - { - txt_radiobutton_t *dx_button, *gdi_button; - - TXT_AddWidgets(window, - TXT_NewSeparator("Windows video driver"), - dx_button = TXT_NewRadioButton("DirectX", - &use_directx, 1), - gdi_button = TXT_NewRadioButton("Windows GDI", - &use_directx, 0), - NULL); - - TXT_SignalConnect(dx_button, "selected", - UpdateVideoDriver, modes_table); - TXT_SignalConnect(gdi_button, "selected", - UpdateVideoDriver, modes_table); - SetWin32VideoDriver(); - } -#endif -} - -void ConfigDisplay(void) -{ - txt_window_t *window; - txt_table_t *modes_table; - txt_separator_t *modes_separator; - txt_table_t *bpp_table; - txt_window_action_t *advanced_button; - txt_checkbox_t *fs_checkbox; - int i; - int num_columns; - int num_rows; - int window_y; - - // What color depths are supported? Generate supported_bpps array - // and set selected_bpp to match the current value of screen_bpp. - - IdentifyPixelDepths(); - SetSelectedBPP(); - - // First time in? Initialise selected_screen_{width,height} - - if (selected_screen_width == 0) - { - selected_screen_width = screen_width; - selected_screen_height = screen_height; - } - - // Open the window - - window = TXT_NewWindow("Display Configuration"); - - // Some machines can have lots of video modes. This tries to - // keep a limit of six lines by increasing the number of - // columns. In extreme cases, the window is moved up slightly. - - BuildFullscreenModesList(); - - if (num_screen_modes_fullscreen <= 24) - { - num_columns = 3; - } - else if (num_screen_modes_fullscreen <= 40) - { - num_columns = 4; - } - else - { - num_columns = 5; - } - - modes_table = TXT_NewTable(num_columns); - - // Build window: - - TXT_AddWidget(window, - fs_checkbox = TXT_NewCheckBox("Full screen", &fullscreen)); - - if (num_supported_bpps > 1) - { - TXT_AddWidgets(window, - TXT_NewSeparator("Color depth"), - bpp_table = TXT_NewTable(4), - NULL); - - for (i = 0; i < num_supported_bpps; ++i) - { - txt_radiobutton_t *button; - - button = TXT_NewRadioButton(supported_bpps[i], - &selected_bpp, i); - - TXT_AddWidget(bpp_table, button); - TXT_SignalConnect(button, "selected", UpdateBPP, modes_table); - } - } - - TXT_AddWidgets(window, - modes_separator = TXT_NewSeparator(""), - modes_table, - NULL); - - TXT_SignalConnect(fs_checkbox, "changed", - GenerateModesTable, modes_table); - TXT_SignalConnect(fs_checkbox, "changed", - UpdateModeSeparator, modes_separator); - - // How many rows high will the configuration window be? - // Need to take into account number of fullscreen modes, and also - // number of supported pixel depths. - // The windowed modes list is four rows, so take the maximum of - // windowed and fullscreen. - - num_rows = (num_screen_modes_fullscreen + num_columns - 1) / num_columns; - - if (num_rows < 4) - { - num_rows = 4; - } - - if (num_supported_bpps > 1) - { - num_rows += 2; - } - - if (num_rows < 14) - { - window_y = 8 - ((num_rows + 1) / 2); - } - else - { - window_y = 1; - } - - // The window is set at a fixed vertical position. This keeps - // the top of the window stationary when switching between - // fullscreen and windowed mode (which causes the window's - // height to change). - - TXT_SetWindowPosition(window, TXT_HORIZ_CENTER, TXT_VERT_TOP, - TXT_SCREEN_W / 2, window_y); - - GenerateModesTable(NULL, modes_table); - UpdateModeSeparator(NULL, modes_separator); - - // Button to open "advanced" window. - // Need to pass a pointer to the modes table, as some of the options - // in there trigger a rebuild of it. - - advanced_button = TXT_NewWindowAction('a', "Advanced"); - TXT_SetWindowAction(window, TXT_HORIZ_CENTER, advanced_button); - TXT_SignalConnect(advanced_button, "pressed", - AdvancedDisplayConfig, modes_table); -} - |