--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/nds-test-progs/sprite/source/common.c	Wed Aug 13 00:49:03 2008 +0000
@@ -0,0 +1,965 @@
+
+/* A simple test program framework */
+
+#include <stdio.h>
+
+#include "common.h"
+
+#define VIDEO_USAGE \
+"[--video driver] [--renderer driver] [--info all|video|modes|render|event] [--display %d] [--fullscreen | --windows N] [--title title] [--center | --position X,Y] [--geometry WxH] [--depth N] [--refresh R] [--vsync] [--noframe] [--resize] [--minimize] [--maximize] [--grab]"
+
+#define AUDIO_USAGE \
+"[--rate N] [--format U8|S8|U16|U16LE|U16BE|S16|S16LE|S16BE] [--channels N] [--samples N]"
+
+CommonState *
+CommonCreateState(char **argv, Uint32 flags)
+{
+    CommonState *state = SDL_calloc(1, sizeof(*state));
+    if (!state) {
+        SDL_OutOfMemory();
+        return NULL;
+    }
+
+    /* Initialize some defaults */
+    state->argv = argv;
+    state->flags = flags;
+    state->window_title = argv[0];
+    state->window_flags = SDL_WINDOW_SHOWN;
+    state->window_x = SDL_WINDOWPOS_UNDEFINED;
+    state->window_y = SDL_WINDOWPOS_UNDEFINED;
+    state->window_w = 256;
+    state->window_h = 192;
+    state->num_windows = 1;
+    state->audiospec.freq = 22050;
+    state->audiospec.format = AUDIO_S16;
+    state->audiospec.channels = 2;
+    state->audiospec.samples = 2048;
+    return state;
+}
+
+int
+CommonArg(CommonState * state, int index)
+{
+    char **argv = state->argv;
+
+    if (SDL_strcasecmp(argv[index], "--video") == 0) {
+        ++index;
+        if (!argv[index]) {
+            return -1;
+        }
+        state->videodriver = argv[index];
+        return 2;
+    }
+    if (SDL_strcasecmp(argv[index], "--renderer") == 0) {
+        ++index;
+        if (!argv[index]) {
+            return -1;
+        }
+        state->renderdriver = argv[index];
+        return 2;
+    }
+    if (SDL_strcasecmp(argv[index], "--info") == 0) {
+        ++index;
+        if (!argv[index]) {
+            return -1;
+        }
+        if (SDL_strcasecmp(argv[index], "all") == 0) {
+            state->verbose |=
+                (VERBOSE_VIDEO | VERBOSE_MODES | VERBOSE_RENDER |
+                 VERBOSE_EVENT);
+            return 2;
+        }
+        if (SDL_strcasecmp(argv[index], "video") == 0) {
+            state->verbose |= VERBOSE_VIDEO;
+            return 2;
+        }
+        if (SDL_strcasecmp(argv[index], "modes") == 0) {
+            state->verbose |= VERBOSE_MODES;
+            return 2;
+        }
+        if (SDL_strcasecmp(argv[index], "render") == 0) {
+            state->verbose |= VERBOSE_RENDER;
+            return 2;
+        }
+        if (SDL_strcasecmp(argv[index], "event") == 0) {
+            state->verbose |= VERBOSE_EVENT;
+            return 2;
+        }
+        return -1;
+    }
+    if (SDL_strcasecmp(argv[index], "--display") == 0) {
+        ++index;
+        if (!argv[index]) {
+            return -1;
+        }
+        state->display = SDL_atoi(argv[index]);
+        return 2;
+    }
+    if (SDL_strcasecmp(argv[index], "--fullscreen") == 0) {
+        state->window_flags |= SDL_WINDOW_FULLSCREEN;
+        state->num_windows = 1;
+        return 1;
+    }
+    if (SDL_strcasecmp(argv[index], "--windows") == 0) {
+        ++index;
+        if (!argv[index] || !SDL_isdigit(*argv[index])) {
+            return -1;
+        }
+        if (!(state->window_flags & SDL_WINDOW_FULLSCREEN)) {
+            state->num_windows = SDL_atoi(argv[index]);
+        }
+        return 2;
+    }
+    if (SDL_strcasecmp(argv[index], "--title") == 0) {
+        ++index;
+        if (!argv[index]) {
+            return -1;
+        }
+        state->window_title = argv[index];
+        return 2;
+    }
+    if (SDL_strcasecmp(argv[index], "--center") == 0) {
+        state->window_x = SDL_WINDOWPOS_CENTERED;
+        state->window_y = SDL_WINDOWPOS_CENTERED;
+        return 1;
+    }
+    if (SDL_strcasecmp(argv[index], "--position") == 0) {
+        char *x, *y;
+        ++index;
+        if (!argv[index]) {
+            return -1;
+        }
+        x = argv[index];
+        y = argv[index];
+        while (*y && *y != ',') {
+            ++y;
+        }
+        if (!*y) {
+            return -1;
+        }
+        *y++ = '\0';
+        state->window_x = SDL_atoi(x);
+        state->window_y = SDL_atoi(y);
+        return 2;
+    }
+    if (SDL_strcasecmp(argv[index], "--geometry") == 0) {
+        char *w, *h;
+        ++index;
+        if (!argv[index]) {
+            return -1;
+        }
+        w = argv[index];
+        h = argv[index];
+        while (*h && *h != 'x') {
+            ++h;
+        }
+        if (!*h) {
+            return -1;
+        }
+        *h++ = '\0';
+        state->window_w = SDL_atoi(w);
+        state->window_h = SDL_atoi(h);
+        return 2;
+    }
+    if (SDL_strcasecmp(argv[index], "--depth") == 0) {
+        ++index;
+        if (!argv[index]) {
+            return -1;
+        }
+        state->depth = SDL_atoi(argv[index]);
+        return 2;
+    }
+    if (SDL_strcasecmp(argv[index], "--refresh") == 0) {
+        ++index;
+        if (!argv[index]) {
+            return -1;
+        }
+        state->refresh_rate = SDL_atoi(argv[index]);
+        return 2;
+    }
+    if (SDL_strcasecmp(argv[index], "--vsync") == 0) {
+        state->render_flags |= SDL_RENDERER_PRESENTVSYNC;
+        return 1;
+    }
+    if (SDL_strcasecmp(argv[index], "--noframe") == 0) {
+        state->window_flags |= SDL_WINDOW_BORDERLESS;
+        return 1;
+    }
+    if (SDL_strcasecmp(argv[index], "--resize") == 0) {
+        state->window_flags |= SDL_WINDOW_RESIZABLE;
+        return 1;
+    }
+    if (SDL_strcasecmp(argv[index], "--minimize") == 0) {
+        state->window_flags |= SDL_WINDOW_MINIMIZED;
+        return 1;
+    }
+    if (SDL_strcasecmp(argv[index], "--maximize") == 0) {
+        state->window_flags |= SDL_WINDOW_MAXIMIZED;
+        return 1;
+    }
+    if (SDL_strcasecmp(argv[index], "--grab") == 0) {
+        state->window_flags |= SDL_WINDOW_INPUT_GRABBED;
+        return 1;
+    }
+    if (SDL_strcasecmp(argv[index], "--rate") == 0) {
+        ++index;
+        if (!argv[index]) {
+            return -1;
+        }
+        state->audiospec.freq = SDL_atoi(argv[index]);
+        return 2;
+    }
+    if (SDL_strcasecmp(argv[index], "--format") == 0) {
+        ++index;
+        if (!argv[index]) {
+            return -1;
+        }
+        if (SDL_strcasecmp(argv[index], "U8") == 0) {
+            state->audiospec.format = AUDIO_U8;
+            return 2;
+        }
+        if (SDL_strcasecmp(argv[index], "S8") == 0) {
+            state->audiospec.format = AUDIO_S8;
+            return 2;
+        }
+        if (SDL_strcasecmp(argv[index], "U16") == 0) {
+            state->audiospec.format = AUDIO_U16;
+            return 2;
+        }
+        if (SDL_strcasecmp(argv[index], "U16LE") == 0) {
+            state->audiospec.format = AUDIO_U16LSB;
+            return 2;
+        }
+        if (SDL_strcasecmp(argv[index], "U16BE") == 0) {
+            state->audiospec.format = AUDIO_U16MSB;
+            return 2;
+        }
+        if (SDL_strcasecmp(argv[index], "S16") == 0) {
+            state->audiospec.format = AUDIO_S16;
+            return 2;
+        }
+        if (SDL_strcasecmp(argv[index], "S16LE") == 0) {
+            state->audiospec.format = AUDIO_S16LSB;
+            return 2;
+        }
+        if (SDL_strcasecmp(argv[index], "S16BE") == 0) {
+            state->audiospec.format = AUDIO_S16MSB;
+            return 2;
+        }
+        return -1;
+    }
+    if (SDL_strcasecmp(argv[index], "--channels") == 0) {
+        ++index;
+        if (!argv[index]) {
+            return -1;
+        }
+        state->audiospec.channels = (Uint8) SDL_atoi(argv[index]);
+        return 2;
+    }
+    if (SDL_strcasecmp(argv[index], "--samples") == 0) {
+        ++index;
+        if (!argv[index]) {
+            return -1;
+        }
+        state->audiospec.samples = (Uint16) SDL_atoi(argv[index]);
+        return 2;
+    }
+    if ((SDL_strcasecmp(argv[index], "-h") == 0)
+        || (SDL_strcasecmp(argv[index], "--help") == 0)) {
+        /* Print the usage message */
+        return -1;
+    }
+    return 0;
+}
+
+const char *
+CommonUsage(CommonState * state)
+{
+    switch (state->flags & (SDL_INIT_VIDEO | SDL_INIT_AUDIO)) {
+    case SDL_INIT_VIDEO:
+        return VIDEO_USAGE;
+    case SDL_INIT_AUDIO:
+        return AUDIO_USAGE;
+    case (SDL_INIT_VIDEO | SDL_INIT_AUDIO):
+        return VIDEO_USAGE " " AUDIO_USAGE;
+    default:
+        return "";
+    }
+}
+
+static void
+PrintRendererFlag(Uint32 flag)
+{
+    switch (flag) {
+    case SDL_RENDERER_SINGLEBUFFER:
+        fprintf(stderr, "SingleBuffer");
+        break;
+    case SDL_RENDERER_PRESENTCOPY:
+        fprintf(stderr, "PresentCopy");
+        break;
+    case SDL_RENDERER_PRESENTFLIP2:
+        fprintf(stderr, "PresentFlip2");
+        break;
+    case SDL_RENDERER_PRESENTFLIP3:
+        fprintf(stderr, "PresentFlip3");
+        break;
+    case SDL_RENDERER_PRESENTDISCARD:
+        fprintf(stderr, "PresentDiscard");
+        break;
+    case SDL_RENDERER_PRESENTVSYNC:
+        fprintf(stderr, "PresentVSync");
+        break;
+    case SDL_RENDERER_ACCELERATED:
+        fprintf(stderr, "Accelerated");
+        break;
+    default:
+        fprintf(stderr, "0x%8.8x", flag);
+        break;
+    }
+}
+
+static void
+PrintBlendMode(Uint32 flag)
+{
+    switch (flag) {
+    case SDL_TEXTUREBLENDMODE_NONE:
+        fprintf(stderr, "None");
+        break;
+    case SDL_TEXTUREBLENDMODE_MASK:
+        fprintf(stderr, "Mask");
+        break;
+    case SDL_TEXTUREBLENDMODE_BLEND:
+        fprintf(stderr, "Blend");
+        break;
+    case SDL_TEXTUREBLENDMODE_ADD:
+        fprintf(stderr, "Add");
+        break;
+    case SDL_TEXTUREBLENDMODE_MOD:
+        fprintf(stderr, "Mod");
+        break;
+    default:
+        fprintf(stderr, "0x%8.8x", flag);
+        break;
+    }
+}
+
+static void
+PrintScaleMode(Uint32 flag)
+{
+    switch (flag) {
+    case SDL_TEXTURESCALEMODE_NONE:
+        fprintf(stderr, "None");
+        break;
+    case SDL_TEXTURESCALEMODE_FAST:
+        fprintf(stderr, "Fast");
+        break;
+    case SDL_TEXTURESCALEMODE_SLOW:
+        fprintf(stderr, "Slow");
+        break;
+    case SDL_TEXTURESCALEMODE_BEST:
+        fprintf(stderr, "Best");
+        break;
+    default:
+        fprintf(stderr, "0x%8.8x", flag);
+        break;
+    }
+}
+
+static void
+PrintPixelFormat(Uint32 format)
+{
+    switch (format) {
+    case SDL_PIXELFORMAT_UNKNOWN:
+        fprintf(stderr, "Unknwon");
+        break;
+    case SDL_PIXELFORMAT_INDEX1LSB:
+        fprintf(stderr, "Index1LSB");
+        break;
+    case SDL_PIXELFORMAT_INDEX1MSB:
+        fprintf(stderr, "Index1MSB");
+        break;
+    case SDL_PIXELFORMAT_INDEX4LSB:
+        fprintf(stderr, "Index4LSB");
+        break;
+    case SDL_PIXELFORMAT_INDEX4MSB:
+        fprintf(stderr, "Index4MSB");
+        break;
+    case SDL_PIXELFORMAT_INDEX8:
+        fprintf(stderr, "Index8");
+        break;
+    case SDL_PIXELFORMAT_RGB332:
+        fprintf(stderr, "RGB332");
+        break;
+    case SDL_PIXELFORMAT_RGB444:
+        fprintf(stderr, "RGB444");
+        break;
+    case SDL_PIXELFORMAT_RGB555:
+        fprintf(stderr, "RGB555");
+        break;
+    case SDL_PIXELFORMAT_ARGB4444:
+        fprintf(stderr, "ARGB4444");
+        break;
+    case SDL_PIXELFORMAT_ARGB1555:
+        fprintf(stderr, "ARGB1555");
+        break;
+    case SDL_PIXELFORMAT_RGB565:
+        fprintf(stderr, "RGB565");
+        break;
+    case SDL_PIXELFORMAT_RGB24:
+        fprintf(stderr, "RGB24");
+        break;
+    case SDL_PIXELFORMAT_BGR24:
+        fprintf(stderr, "BGR24");
+        break;
+    case SDL_PIXELFORMAT_RGB888:
+        fprintf(stderr, "RGB888");
+        break;
+    case SDL_PIXELFORMAT_BGR888:
+        fprintf(stderr, "BGR888");
+        break;
+    case SDL_PIXELFORMAT_ARGB8888:
+        fprintf(stderr, "ARGB8888");
+        break;
+    case SDL_PIXELFORMAT_RGBA8888:
+        fprintf(stderr, "RGBA8888");
+        break;
+    case SDL_PIXELFORMAT_ABGR8888:
+        fprintf(stderr, "ABGR8888");
+        break;
+    case SDL_PIXELFORMAT_BGRA8888:
+        fprintf(stderr, "BGRA8888");
+        break;
+    case SDL_PIXELFORMAT_ARGB2101010:
+        fprintf(stderr, "ARGB2101010");
+        break;
+    case SDL_PIXELFORMAT_YV12:
+        fprintf(stderr, "YV12");
+        break;
+    case SDL_PIXELFORMAT_IYUV:
+        fprintf(stderr, "IYUV");
+        break;
+    case SDL_PIXELFORMAT_YUY2:
+        fprintf(stderr, "YUY2");
+        break;
+    case SDL_PIXELFORMAT_UYVY:
+        fprintf(stderr, "UYVY");
+        break;
+    case SDL_PIXELFORMAT_YVYU:
+        fprintf(stderr, "YVYU");
+        break;
+    case SDL_PIXELFORMAT_ABGR1555:
+        fprintf(stderr, "ABGR1555");
+        break;
+    case SDL_PIXELFORMAT_BGR555:
+        fprintf(stderr, "BGR555");
+        break;
+    default:
+        fprintf(stderr, "0x%8.8x", format);
+        break;
+    }
+}
+
+static void
+PrintRenderer(SDL_RendererInfo * info)
+{
+    int i, count;
+
+    fprintf(stderr, "  Renderer %s:\n", info->name);
+
+    fprintf(stderr, "    Flags: 0x%8.8X", info->flags);
+    fprintf(stderr, " (");
+    count = 0;
+    for (i = 0; i < sizeof(info->flags) * 8; ++i) {
+        Uint32 flag = (1 << i);
+        if (info->flags & flag) {
+            if (count > 0) {
+                fprintf(stderr, " | ");
+            }
+            PrintRendererFlag(flag);
+            ++count;
+        }
+    }
+    fprintf(stderr, ")\n");
+
+    fprintf(stderr, "    Blend: 0x%8.8X", info->blend_modes);
+    fprintf(stderr, " (");
+    count = 0;
+    for (i = 0; i < sizeof(info->blend_modes) * 8; ++i) {
+        Uint32 flag = (1 << i);
+        if (info->blend_modes & flag) {
+            if (count > 0) {
+                fprintf(stderr, " | ");
+            }
+            PrintBlendMode(flag);
+            ++count;
+        }
+    }
+    fprintf(stderr, ")\n");
+
+    fprintf(stderr, "    Scale: 0x%8.8X", info->scale_modes);
+    fprintf(stderr, " (");
+    count = 0;
+    for (i = 0; i < sizeof(info->scale_modes) * 8; ++i) {
+        Uint32 flag = (1 << i);
+        if (info->scale_modes & flag) {
+            if (count > 0) {
+                fprintf(stderr, " | ");
+            }
+            PrintScaleMode(flag);
+            ++count;
+        }
+    }
+    fprintf(stderr, ")\n");
+
+    fprintf(stderr, "    Texture formats (%d): ", info->num_texture_formats);
+    for (i = 0; i < (int) info->num_texture_formats; ++i) {
+        if (i > 0) {
+            fprintf(stderr, ", ");
+        }
+        PrintPixelFormat(info->texture_formats[i]);
+    }
+    fprintf(stderr, "\n");
+
+    if (info->max_texture_width || info->max_texture_height) {
+        fprintf(stderr, "    Max Texture Size: %dx%d\n",
+                info->max_texture_width, info->max_texture_height);
+    }
+}
+
+SDL_bool
+CommonInit(CommonState * state)
+{
+    int i, j, m, n;
+    SDL_DisplayMode fullscreen_mode;
+
+    if (state->flags & SDL_INIT_VIDEO) {
+        if (state->verbose & VERBOSE_VIDEO) {
+            n = SDL_GetNumVideoDrivers();
+            if (n == 0) {
+                fprintf(stderr, "No built-in video drivers\n");
+            } else {
+                fprintf(stderr, "Built-in video drivers:");
+                for (i = 0; i < n; ++i) {
+                    if (i > 0) {
+                        fprintf(stderr, ",");
+                    }
+                    fprintf(stderr, " %s", SDL_GetVideoDriver(i));
+                }
+                fprintf(stderr, "\n");
+            }
+        }
+        if (SDL_VideoInit(state->videodriver, 0) < 0) {
+            fprintf(stderr, "Couldn't initialize video driver: %s\n",
+                    SDL_GetError());
+            return SDL_FALSE;
+        }
+        if (state->verbose & VERBOSE_VIDEO) {
+            fprintf(stderr, "Video driver: %s\n",
+                    SDL_GetCurrentVideoDriver());
+        }
+
+        if (state->verbose & VERBOSE_MODES) {
+            SDL_DisplayMode mode;
+            int bpp;
+            Uint32 Rmask, Gmask, Bmask, Amask;
+
+            n = SDL_GetNumVideoDisplays();
+            fprintf(stderr, "Number of displays: %d\n", n);
+            for (i = 0; i < n; ++i) {
+                fprintf(stderr, "Display %d:\n", i);
+                SDL_SelectVideoDisplay(i);
+
+                SDL_GetDesktopDisplayMode(&mode);
+                SDL_PixelFormatEnumToMasks(mode.format, &bpp, &Rmask, &Gmask,
+                                           &Bmask, &Amask);
+                fprintf(stderr,
+                        "  Current mode: %dx%d@%dHz, %d bits-per-pixel\n",
+                        mode.w, mode.h, mode.refresh_rate, bpp);
+                if (Rmask || Gmask || Bmask) {
+                    fprintf(stderr, "      Red Mask = 0x%.8x\n", Rmask);
+                    fprintf(stderr, "      Green Mask = 0x%.8x\n", Gmask);
+                    fprintf(stderr, "      Blue Mask = 0x%.8x\n", Bmask);
+                    if (Amask)
+                        fprintf(stderr, "      Alpha Mask = 0x%.8x\n", Amask);
+                }
+
+                /* Print available fullscreen video modes */
+                m = SDL_GetNumDisplayModes();
+                if (m == 0) {
+                    fprintf(stderr, "No available fullscreen video modes\n");
+                } else {
+                    fprintf(stderr, "  Fullscreen video modes:\n");
+                    for (j = 0; j < m; ++j) {
+                        SDL_GetDisplayMode(j, &mode);
+                        SDL_PixelFormatEnumToMasks(mode.format, &bpp, &Rmask,
+                                                   &Gmask, &Bmask, &Amask);
+                        fprintf(stderr,
+                                "    Mode %d: %dx%d@%dHz, %d bits-per-pixel\n",
+                                j, mode.w, mode.h, mode.refresh_rate, bpp);
+                        if (Rmask || Gmask || Bmask) {
+                            fprintf(stderr, "        Red Mask = 0x%.8x\n",
+                                    Rmask);
+                            fprintf(stderr, "        Green Mask = 0x%.8x\n",
+                                    Gmask);
+                            fprintf(stderr, "        Blue Mask = 0x%.8x\n",
+                                    Bmask);
+                            if (Amask)
+                                fprintf(stderr,
+                                        "        Alpha Mask = 0x%.8x\n",
+                                        Amask);
+                        }
+                    }
+                }
+            }
+        }
+
+        SDL_SelectVideoDisplay(state->display);
+        if (state->verbose & VERBOSE_RENDER) {
+            SDL_RendererInfo info;
+
+            n = SDL_GetNumRenderDrivers();
+            if (n == 0) {
+                fprintf(stderr, "No built-in render drivers\n");
+            } else {
+                fprintf(stderr, "Built-in render drivers:\n");
+                for (i = 0; i < n; ++i) {
+                    SDL_GetRenderDriverInfo(i, &info);
+                    PrintRenderer(&info);
+                }
+            }
+        }
+
+        switch (state->depth) {
+        case 8:
+            fullscreen_mode.format = SDL_PIXELFORMAT_INDEX8;
+            break;
+        case 15:
+            fullscreen_mode.format = SDL_PIXELFORMAT_BGR555;
+            break;
+        case 16:
+        default:
+            fullscreen_mode.format = SDL_PIXELFORMAT_ABGR1555;
+            break;
+/* NDS       default:
+            fullscreen_mode.format = SDL_PIXELFORMAT_RGB888;
+            break;*/
+        }
+        fullscreen_mode.w = state->window_w;
+        fullscreen_mode.h = state->window_h;
+        fullscreen_mode.refresh_rate = state->refresh_rate;
+        SDL_SetFullscreenDisplayMode(&fullscreen_mode);
+
+        state->windows =
+            (SDL_WindowID *) SDL_malloc(state->num_windows *
+                                        sizeof(*state->windows));
+        if (!state->windows) {
+            fprintf(stderr, "Out of memory!\n");
+            return SDL_FALSE;
+        }
+        for (i = 0; i < state->num_windows; ++i) {
+            char title[1024];
+
+            if (state->num_windows > 1) {
+                SDL_snprintf(title, SDL_arraysize(title), "%s %d",
+                             state->window_title, i + 1);
+            } else {
+                SDL_strlcpy(title, state->window_title, SDL_arraysize(title));
+            }
+            state->windows[i] =
+                SDL_CreateWindow(title, state->window_x, state->window_y,
+                                 state->window_w, state->window_h,
+                                 state->window_flags);
+            if (!state->windows[i]) {
+                fprintf(stderr, "Couldn't create window: %s\n",
+                        SDL_GetError());
+                return SDL_FALSE;
+            }
+
+            if (!state->skip_renderer
+                && (state->renderdriver
+                    || !(state->window_flags & SDL_WINDOW_OPENGL))) {
+                m = -1;
+                if (state->renderdriver) {
+                    SDL_RendererInfo info;
+                    n = SDL_GetNumRenderDrivers();
+                    for (j = 0; j < n; ++j) {
+                        SDL_GetRenderDriverInfo(j, &info);
+                        if (SDL_strcasecmp(info.name, state->renderdriver) ==
+                            0) {
+                            m = j;
+                            break;
+                        }
+                    }
+                    if (m == n) {
+                        fprintf(stderr,
+                                "Couldn't find render driver named %s",
+                                state->renderdriver);
+                        return SDL_FALSE;
+                    }
+                }
+                if (SDL_CreateRenderer
+                    (state->windows[i], m, state->render_flags) < 0) {
+                    fprintf(stderr, "Couldn't create renderer: %s\n",
+                            SDL_GetError());
+                    return SDL_FALSE;
+                }
+                if (state->verbose & VERBOSE_RENDER) {
+                    SDL_RendererInfo info;
+
+                    fprintf(stderr, "Current renderer:\n");
+                    SDL_GetRendererInfo(&info);
+                    PrintRenderer(&info);
+                }
+            }
+        }
+        SDL_SelectRenderer(state->windows[0]);
+    }
+
+    if (state->flags & SDL_INIT_AUDIO) {
+        if (state->verbose & VERBOSE_AUDIO) {
+            n = SDL_GetNumAudioDrivers();
+            if (n == 0) {
+                fprintf(stderr, "No built-in audio drivers\n");
+            } else {
+                fprintf(stderr, "Built-in audio drivers:");
+                for (i = 0; i < n; ++i) {
+                    if (i > 0) {
+                        fprintf(stderr, ",");
+                    }
+                    fprintf(stderr, " %s", SDL_GetAudioDriver(i));
+                }
+                fprintf(stderr, "\n");
+            }
+        }
+        if (SDL_AudioInit(state->audiodriver) < 0) {
+            fprintf(stderr, "Couldn't initialize audio driver: %s\n",
+                    SDL_GetError());
+            return SDL_FALSE;
+        }
+        if (state->verbose & VERBOSE_VIDEO) {
+            fprintf(stderr, "Audio driver: %s\n",
+                    SDL_GetCurrentAudioDriver());
+        }
+
+        if (SDL_OpenAudio(&state->audiospec, NULL) < 0) {
+            fprintf(stderr, "Couldn't open audio: %s\n", SDL_GetError());
+            return SDL_FALSE;
+        }
+    }
+
+    return SDL_TRUE;
+}
+
+static void
+PrintEvent(SDL_Event * event)
+{
+    fprintf(stderr, "SDL EVENT: ");
+    switch (event->type) {
+    case SDL_WINDOWEVENT:
+        switch (event->window.event) {
+        case SDL_WINDOWEVENT_SHOWN:
+            fprintf(stderr, "Window %d shown", event->window.windowID);
+            break;
+        case SDL_WINDOWEVENT_HIDDEN:
+            fprintf(stderr, "Window %d hidden", event->window.windowID);
+            break;
+        case SDL_WINDOWEVENT_EXPOSED:
+            fprintf(stderr, "Window %d exposed", event->window.windowID);
+            break;
+        case SDL_WINDOWEVENT_MOVED:
+            fprintf(stderr, "Window %d moved to %d,%d",
+                    event->window.windowID, event->window.data1,
+                    event->window.data2);
+            break;
+        case SDL_WINDOWEVENT_RESIZED:
+            fprintf(stderr, "Window %d resized to %dx%d",
+                    event->window.windowID, event->window.data1,
+                    event->window.data2);
+            break;
+        case SDL_WINDOWEVENT_MINIMIZED:
+            fprintf(stderr, "Window %d minimized", event->window.windowID);
+            break;
+        case SDL_WINDOWEVENT_MAXIMIZED:
+            fprintf(stderr, "Window %d maximized", event->window.windowID);
+            break;
+        case SDL_WINDOWEVENT_RESTORED:
+            fprintf(stderr, "Window %d restored", event->window.windowID);
+            break;
+        case SDL_WINDOWEVENT_ENTER:
+            fprintf(stderr, "Mouse entered window %d",
+                    event->window.windowID);
+            break;
+        case SDL_WINDOWEVENT_LEAVE:
+            fprintf(stderr, "Mouse left window %d", event->window.windowID);
+            break;
+        case SDL_WINDOWEVENT_FOCUS_GAINED:
+            fprintf(stderr, "Window %d gained keyboard focus",
+                    event->window.windowID);
+            break;
+        case SDL_WINDOWEVENT_FOCUS_LOST:
+            fprintf(stderr, "Window %d lost keyboard focus",
+                    event->window.windowID);
+            break;
+        case SDL_WINDOWEVENT_CLOSE:
+            fprintf(stderr, "Window %d closed", event->window.windowID);
+            break;
+        default:
+            fprintf(stderr, "Window %d got unknown event %d",
+                    event->window.windowID, event->window.event);
+            break;
+        }
+        break;
+    case SDL_KEYDOWN:
+        fprintf(stderr,
+                "Keyboard %d: key pressed  in window %d: scancode 0x%08X = %s, keycode 0x%08X = %s",
+                event->key.which, event->key.windowID,
+                event->key.keysym.scancode,
+                SDL_GetScancodeName(event->key.keysym.scancode),
+                event->key.keysym.sym, SDL_GetKeyName(event->key.keysym.sym));
+        break;
+    case SDL_KEYUP:
+        fprintf(stderr,
+                "Keyboard %d: key released in window %d: scancode 0x%08X = %s, keycode 0x%08X = %s",
+                event->key.which, event->key.windowID,
+                event->key.keysym.scancode,
+                SDL_GetScancodeName(event->key.keysym.scancode),
+                event->key.keysym.sym, SDL_GetKeyName(event->key.keysym.sym));
+        break;
+    case SDL_TEXTINPUT:
+        fprintf(stderr, "Keyboard %d: text input \"%s\" in window %d",
+                event->text.which, event->text.text, event->text.windowID);
+        break;
+    case SDL_MOUSEMOTION:
+        fprintf(stderr, "Mouse %d: moved to %d,%d (%d,%d) in window %d",
+                event->motion.which, event->motion.x, event->motion.y,
+                event->motion.xrel, event->motion.yrel,
+                event->motion.windowID);
+        break;
+    case SDL_MOUSEBUTTONDOWN:
+        fprintf(stderr, "Mouse %d: button %d pressed at %d,%d in window %d",
+                event->button.which, event->button.button, event->button.x,
+                event->button.y, event->button.windowID);
+        break;
+    case SDL_MOUSEBUTTONUP:
+        fprintf(stderr, "Mouse %d: button %d released at %d,%d in window %d",
+                event->button.which, event->button.button, event->button.x,
+                event->button.y, event->button.windowID);
+        break;
+    case SDL_MOUSEWHEEL:
+        fprintf(stderr,
+                "Mouse %d: wheel scrolled %d in x and %d in y in window %d",
+                event->wheel.which, event->wheel.x, event->wheel.y,
+                event->wheel.windowID);
+        break;
+    case SDL_JOYBALLMOTION:
+        fprintf(stderr, "Joystick %d: ball %d moved by %d,%d",
+                event->jball.which, event->jball.ball, event->jball.xrel,
+                event->jball.yrel);
+        break;
+    case SDL_JOYHATMOTION:
+        fprintf(stderr, "Joystick %d: hat %d moved to ", event->jhat.which,
+                event->jhat.hat);
+        switch (event->jhat.value) {
+        case SDL_HAT_CENTERED:
+            fprintf(stderr, "CENTER");
+            break;
+        case SDL_HAT_UP:
+            fprintf(stderr, "UP");
+            break;
+        case SDL_HAT_RIGHTUP:
+            fprintf(stderr, "RIGHTUP");
+            break;
+        case SDL_HAT_RIGHT:
+            fprintf(stderr, "RIGHT");
+            break;
+        case SDL_HAT_RIGHTDOWN:
+            fprintf(stderr, "RIGHTDOWN");
+            break;
+        case SDL_HAT_DOWN:
+            fprintf(stderr, "DOWN");
+            break;
+        case SDL_HAT_LEFTDOWN:
+            fprintf(stderr, "LEFTDOWN");
+            break;
+        case SDL_HAT_LEFT:
+            fprintf(stderr, "LEFT");
+            break;
+        case SDL_HAT_LEFTUP:
+            fprintf(stderr, "LEFTUP");
+            break;
+        default:
+            fprintf(stderr, "UNKNOWN");
+            break;
+        }
+        break;
+    case SDL_JOYBUTTONDOWN:
+        fprintf(stderr, "Joystick %d: button %d pressed",
+                event->jbutton.which, event->jbutton.button);
+        break;
+    case SDL_JOYBUTTONUP:
+        fprintf(stderr, "Joystick %d: button %d released",
+                event->jbutton.which, event->jbutton.button);
+        break;
+    case SDL_QUIT:
+        fprintf(stderr, "Quit requested");
+        break;
+    case SDL_USEREVENT:
+        fprintf(stderr, "User event %d", event->user.code);
+        break;
+    default:
+        fprintf(stderr, "Unknown event %d", event->type);
+        break;
+    }
+    fprintf(stderr, "\n");
+}
+
+void
+CommonEvent(CommonState * state, SDL_Event * event, int *done)
+{
+    if (state->verbose & VERBOSE_EVENT) {
+        PrintEvent(event);
+    }
+
+    switch (event->type) {
+    case SDL_WINDOWEVENT:
+        switch (event->window.event) {
+        case SDL_WINDOWEVENT_CLOSE:
+            *done = 1;
+            break;
+        }
+        break;
+    case SDL_KEYDOWN:
+        switch (event->key.keysym.sym) {
+            /* Add hotkeys here */
+        case SDLK_g:
+            if (event->key.keysym.mod & KMOD_CTRL) {
+                /* Ctrl-G toggle grab */
+            }
+            break;
+        case SDLK_ESCAPE:
+            *done = 1;
+            break;
+        default:
+            break;
+        }
+        break;
+    case SDL_QUIT:
+        *done = 1;
+        break;
+    }
+}
+
+void
+CommonQuit(CommonState * state)
+{
+    if (state->flags & SDL_INIT_VIDEO) {
+        SDL_VideoQuit();
+    }
+    if (state->flags & SDL_INIT_AUDIO) {
+        SDL_AudioQuit();
+    }
+    if (state->windows) {
+        SDL_free(state->windows);
+    }
+    SDL_free(state);
+}