| /* |
| Copyright (C) 1997-2016 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. |
| */ |
| /******************************************************************************** |
| * * |
| * Test of the overlay used for moved pictures, test more closed to real life. * |
| * Running trojan moose :) Coded by Mike Gorchak. * |
| * * |
| ********************************************************************************/ |
| |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| #ifdef __EMSCRIPTEN__ |
| #include <emscripten/emscripten.h> |
| #endif |
| |
| #include "SDL.h" |
| |
| #define MOOSEPIC_W 64 |
| #define MOOSEPIC_H 88 |
| |
| #define MOOSEFRAME_SIZE (MOOSEPIC_W * MOOSEPIC_H) |
| #define MOOSEFRAMES_COUNT 10 |
| |
| SDL_Color MooseColors[84] = { |
| {49, 49, 49} |
| , {66, 24, 0} |
| , {66, 33, 0} |
| , {66, 66, 66} |
| , |
| {66, 115, 49} |
| , {74, 33, 0} |
| , {74, 41, 16} |
| , {82, 33, 8} |
| , |
| {82, 41, 8} |
| , {82, 49, 16} |
| , {82, 82, 82} |
| , {90, 41, 8} |
| , |
| {90, 41, 16} |
| , {90, 57, 24} |
| , {99, 49, 16} |
| , {99, 66, 24} |
| , |
| {99, 66, 33} |
| , {99, 74, 33} |
| , {107, 57, 24} |
| , {107, 82, 41} |
| , |
| {115, 57, 33} |
| , {115, 66, 33} |
| , {115, 66, 41} |
| , {115, 74, 0} |
| , |
| {115, 90, 49} |
| , {115, 115, 115} |
| , {123, 82, 0} |
| , {123, 99, 57} |
| , |
| {132, 66, 41} |
| , {132, 74, 41} |
| , {132, 90, 8} |
| , {132, 99, 33} |
| , |
| {132, 99, 66} |
| , {132, 107, 66} |
| , {140, 74, 49} |
| , {140, 99, 16} |
| , |
| {140, 107, 74} |
| , {140, 115, 74} |
| , {148, 107, 24} |
| , {148, 115, 82} |
| , |
| {148, 123, 74} |
| , {148, 123, 90} |
| , {156, 115, 33} |
| , {156, 115, 90} |
| , |
| {156, 123, 82} |
| , {156, 132, 82} |
| , {156, 132, 99} |
| , {156, 156, 156} |
| , |
| {165, 123, 49} |
| , {165, 123, 90} |
| , {165, 132, 82} |
| , {165, 132, 90} |
| , |
| {165, 132, 99} |
| , {165, 140, 90} |
| , {173, 132, 57} |
| , {173, 132, 99} |
| , |
| {173, 140, 107} |
| , {173, 140, 115} |
| , {173, 148, 99} |
| , {173, 173, 173} |
| , |
| {181, 140, 74} |
| , {181, 148, 115} |
| , {181, 148, 123} |
| , {181, 156, 107} |
| , |
| {189, 148, 123} |
| , {189, 156, 82} |
| , {189, 156, 123} |
| , {189, 156, 132} |
| , |
| {189, 189, 189} |
| , {198, 156, 123} |
| , {198, 165, 132} |
| , {206, 165, 99} |
| , |
| {206, 165, 132} |
| , {206, 173, 140} |
| , {206, 206, 206} |
| , {214, 173, 115} |
| , |
| {214, 173, 140} |
| , {222, 181, 148} |
| , {222, 189, 132} |
| , {222, 189, 156} |
| , |
| {222, 222, 222} |
| , {231, 198, 165} |
| , {231, 231, 231} |
| , {239, 206, 173} |
| }; |
| |
| Uint8 MooseFrame[MOOSEFRAMES_COUNT][MOOSEFRAME_SIZE*2]; |
| SDL_Texture *MooseTexture; |
| SDL_Rect displayrect; |
| int window_w; |
| int window_h; |
| SDL_Window *window; |
| SDL_Renderer *renderer; |
| int paused = 0; |
| int i; |
| SDL_bool done = SDL_FALSE; |
| Uint32 pixel_format = SDL_PIXELFORMAT_YV12; |
| int fpsdelay; |
| |
| /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ |
| static void |
| quit(int rc) |
| { |
| SDL_Quit(); |
| exit(rc); |
| } |
| |
| /* All RGB2YUV conversion code and some other parts of code has been taken from testoverlay.c */ |
| |
| /* NOTE: These RGB conversion functions are not intended for speed, |
| only as examples. |
| */ |
| |
| void |
| RGBtoYUV(Uint8 * rgb, int *yuv, int monochrome, int luminance) |
| { |
| if (monochrome) { |
| #if 1 /* these are the two formulas that I found on the FourCC site... */ |
| yuv[0] = (int)(0.299 * rgb[0] + 0.587 * rgb[1] + 0.114 * rgb[2]); |
| yuv[1] = 128; |
| yuv[2] = 128; |
| #else |
| yuv[0] = (int)(0.257 * rgb[0]) + (0.504 * rgb[1]) + (0.098 * rgb[2]) + 16; |
| yuv[1] = 128; |
| yuv[2] = 128; |
| #endif |
| } else { |
| #if 1 /* these are the two formulas that I found on the FourCC site... */ |
| yuv[0] = (int)(0.299 * rgb[0] + 0.587 * rgb[1] + 0.114 * rgb[2]); |
| yuv[1] = (int)((rgb[2] - yuv[0]) * 0.565 + 128); |
| yuv[2] = (int)((rgb[0] - yuv[0]) * 0.713 + 128); |
| #else |
| yuv[0] = (0.257 * rgb[0]) + (0.504 * rgb[1]) + (0.098 * rgb[2]) + 16; |
| yuv[1] = 128 - (0.148 * rgb[0]) - (0.291 * rgb[1]) + (0.439 * rgb[2]); |
| yuv[2] = 128 + (0.439 * rgb[0]) - (0.368 * rgb[1]) - (0.071 * rgb[2]); |
| #endif |
| } |
| |
| if (luminance != 100) { |
| yuv[0] = yuv[0] * luminance / 100; |
| if (yuv[0] > 255) |
| yuv[0] = 255; |
| } |
| } |
| |
| void |
| ConvertRGBtoYV12(Uint8 *rgb, Uint8 *out, int w, int h, |
| int monochrome, int luminance) |
| { |
| int x, y; |
| int yuv[3]; |
| Uint8 *op[3]; |
| |
| op[0] = out; |
| op[1] = op[0] + w*h; |
| op[2] = op[1] + w*h/4; |
| for (y = 0; y < h; ++y) { |
| for (x = 0; x < w; ++x) { |
| RGBtoYUV(rgb, yuv, monochrome, luminance); |
| *(op[0]++) = yuv[0]; |
| if (x % 2 == 0 && y % 2 == 0) { |
| *(op[1]++) = yuv[2]; |
| *(op[2]++) = yuv[1]; |
| } |
| rgb += 3; |
| } |
| } |
| } |
| |
| void |
| ConvertRGBtoNV12(Uint8 *rgb, Uint8 *out, int w, int h, |
| int monochrome, int luminance) |
| { |
| int x, y; |
| int yuv[3]; |
| Uint8 *op[2]; |
| |
| op[0] = out; |
| op[1] = op[0] + w*h; |
| for (y = 0; y < h; ++y) { |
| for (x = 0; x < w; ++x) { |
| RGBtoYUV(rgb, yuv, monochrome, luminance); |
| *(op[0]++) = yuv[0]; |
| if (x % 2 == 0 && y % 2 == 0) { |
| *(op[1]++) = yuv[1]; |
| *(op[1]++) = yuv[2]; |
| } |
| rgb += 3; |
| } |
| } |
| } |
| |
| static void |
| PrintUsage(char *argv0) |
| { |
| SDL_Log("Usage: %s [arg] [arg] [arg] ...\n", argv0); |
| SDL_Log("\n"); |
| SDL_Log("Where 'arg' is any of the following options:\n"); |
| SDL_Log("\n"); |
| SDL_Log(" -fps <frames per second>\n"); |
| SDL_Log(" -nodelay\n"); |
| SDL_Log(" -format <fmt> (one of the: YV12, IYUV, YUY2, UYVY, YVYU)\n"); |
| SDL_Log(" -scale <scale factor> (initial scale of the overlay)\n"); |
| SDL_Log(" -help (shows this help)\n"); |
| SDL_Log("\n"); |
| SDL_Log("Press ESC to exit, or SPACE to freeze the movie while application running.\n"); |
| SDL_Log("\n"); |
| } |
| |
| void |
| loop() |
| { |
| SDL_Event event; |
| |
| while (SDL_PollEvent(&event)) { |
| switch (event.type) { |
| case SDL_WINDOWEVENT: |
| if (event.window.event == SDL_WINDOWEVENT_RESIZED) { |
| SDL_RenderSetViewport(renderer, NULL); |
| displayrect.w = window_w = event.window.data1; |
| displayrect.h = window_h = event.window.data2; |
| } |
| break; |
| case SDL_MOUSEBUTTONDOWN: |
| displayrect.x = event.button.x - window_w / 2; |
| displayrect.y = event.button.y - window_h / 2; |
| break; |
| case SDL_MOUSEMOTION: |
| if (event.motion.state) { |
| displayrect.x = event.motion.x - window_w / 2; |
| displayrect.y = event.motion.y - window_h / 2; |
| } |
| break; |
| case SDL_KEYDOWN: |
| if (event.key.keysym.sym == SDLK_SPACE) { |
| paused = !paused; |
| break; |
| } |
| if (event.key.keysym.sym != SDLK_ESCAPE) { |
| break; |
| } |
| case SDL_QUIT: |
| done = SDL_TRUE; |
| break; |
| } |
| } |
| |
| #ifndef __EMSCRIPTEN__ |
| SDL_Delay(fpsdelay); |
| #endif |
| |
| if (!paused) { |
| i = (i + 1) % MOOSEFRAMES_COUNT; |
| |
| SDL_UpdateTexture(MooseTexture, NULL, MooseFrame[i], MOOSEPIC_W*SDL_BYTESPERPIXEL(pixel_format)); |
| } |
| SDL_RenderClear(renderer); |
| SDL_RenderCopy(renderer, MooseTexture, NULL, &displayrect); |
| SDL_RenderPresent(renderer); |
| |
| #ifdef __EMSCRIPTEN__ |
| if (done) { |
| emscripten_cancel_main_loop(); |
| } |
| #endif |
| } |
| |
| int |
| main(int argc, char **argv) |
| { |
| Uint8 *RawMooseData; |
| SDL_RWops *handle; |
| SDL_Window *window; |
| int j; |
| int fps = 12; |
| int fpsdelay; |
| int nodelay = 0; |
| #ifdef TEST_NV12 |
| Uint32 pixel_format = SDL_PIXELFORMAT_NV12; |
| #else |
| Uint32 pixel_format = SDL_PIXELFORMAT_YV12; |
| #endif |
| int scale = 5; |
| |
| /* Enable standard application logging */ |
| SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO); |
| |
| if (SDL_Init(SDL_INIT_VIDEO) < 0) { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError()); |
| return 3; |
| } |
| |
| while (argc > 1) { |
| if (strcmp(argv[1], "-fps") == 0) { |
| if (argv[2]) { |
| fps = atoi(argv[2]); |
| if (fps == 0) { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, |
| "The -fps option requires an argument [from 1 to 1000], default is 12.\n"); |
| quit(10); |
| } |
| if ((fps < 0) || (fps > 1000)) { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, |
| "The -fps option must be in range from 1 to 1000, default is 12.\n"); |
| quit(10); |
| } |
| argv += 2; |
| argc -= 2; |
| } else { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, |
| "The -fps option requires an argument [from 1 to 1000], default is 12.\n"); |
| quit(10); |
| } |
| } else if (strcmp(argv[1], "-nodelay") == 0) { |
| nodelay = 1; |
| argv += 1; |
| argc -= 1; |
| } else if (strcmp(argv[1], "-scale") == 0) { |
| if (argv[2]) { |
| scale = atoi(argv[2]); |
| if (scale == 0) { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, |
| "The -scale option requires an argument [from 1 to 50], default is 5.\n"); |
| quit(10); |
| } |
| if ((scale < 0) || (scale > 50)) { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, |
| "The -scale option must be in range from 1 to 50, default is 5.\n"); |
| quit(10); |
| } |
| argv += 2; |
| argc -= 2; |
| } else { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, |
| "The -fps option requires an argument [from 1 to 1000], default is 12.\n"); |
| quit(10); |
| } |
| } else if ((strcmp(argv[1], "-help") == 0) |
| || (strcmp(argv[1], "-h") == 0)) { |
| PrintUsage(argv[0]); |
| quit(0); |
| } else { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Unrecognized option: %s.\n", argv[1]); |
| quit(10); |
| } |
| break; |
| } |
| |
| RawMooseData = (Uint8 *) malloc(MOOSEFRAME_SIZE * MOOSEFRAMES_COUNT); |
| if (RawMooseData == NULL) { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Can't allocate memory for movie !\n"); |
| free(RawMooseData); |
| quit(1); |
| } |
| |
| /* load the trojan moose images */ |
| handle = SDL_RWFromFile("moose.dat", "rb"); |
| if (handle == NULL) { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Can't find the file moose.dat !\n"); |
| free(RawMooseData); |
| quit(2); |
| } |
| |
| SDL_RWread(handle, RawMooseData, MOOSEFRAME_SIZE, MOOSEFRAMES_COUNT); |
| |
| SDL_RWclose(handle); |
| |
| /* Create the window and renderer */ |
| window_w = MOOSEPIC_W * scale; |
| window_h = MOOSEPIC_H * scale; |
| window = SDL_CreateWindow("Happy Moose", |
| SDL_WINDOWPOS_UNDEFINED, |
| SDL_WINDOWPOS_UNDEFINED, |
| window_w, window_h, |
| SDL_WINDOW_RESIZABLE); |
| if (!window) { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create window: %s\n", SDL_GetError()); |
| free(RawMooseData); |
| quit(4); |
| } |
| |
| renderer = SDL_CreateRenderer(window, -1, 0); |
| if (!renderer) { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create renderer: %s\n", SDL_GetError()); |
| free(RawMooseData); |
| quit(4); |
| } |
| |
| MooseTexture = SDL_CreateTexture(renderer, pixel_format, SDL_TEXTUREACCESS_STREAMING, MOOSEPIC_W, MOOSEPIC_H); |
| if (!MooseTexture) { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create texture: %s\n", SDL_GetError()); |
| free(RawMooseData); |
| quit(5); |
| } |
| /* Uncomment this to check vertex color with a YUV texture */ |
| /* SDL_SetTextureColorMod(MooseTexture, 0xff, 0x80, 0x80); */ |
| |
| for (i = 0; i < MOOSEFRAMES_COUNT; i++) { |
| Uint8 MooseFrameRGB[MOOSEFRAME_SIZE*3]; |
| Uint8 *rgb; |
| Uint8 *frame; |
| |
| rgb = MooseFrameRGB; |
| frame = RawMooseData + i * MOOSEFRAME_SIZE; |
| for (j = 0; j < MOOSEFRAME_SIZE; ++j) { |
| rgb[0] = MooseColors[frame[j]].r; |
| rgb[1] = MooseColors[frame[j]].g; |
| rgb[2] = MooseColors[frame[j]].b; |
| rgb += 3; |
| } |
| switch (pixel_format) { |
| case SDL_PIXELFORMAT_YV12: |
| ConvertRGBtoYV12(MooseFrameRGB, MooseFrame[i], MOOSEPIC_W, MOOSEPIC_H, 0, 100); |
| break; |
| case SDL_PIXELFORMAT_NV12: |
| ConvertRGBtoNV12(MooseFrameRGB, MooseFrame[i], MOOSEPIC_W, MOOSEPIC_H, 0, 100); |
| break; |
| default: |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Unsupported pixel format\n"); |
| break; |
| } |
| } |
| |
| free(RawMooseData); |
| |
| /* set the start frame */ |
| i = 0; |
| if (nodelay) { |
| fpsdelay = 0; |
| } else { |
| fpsdelay = 1000 / fps; |
| } |
| |
| displayrect.x = 0; |
| displayrect.y = 0; |
| displayrect.w = window_w; |
| displayrect.h = window_h; |
| |
| /* Ignore key up events, they don't even get filtered */ |
| SDL_EventState(SDL_KEYUP, SDL_IGNORE); |
| |
| /* Loop, waiting for QUIT or RESIZE */ |
| #ifdef __EMSCRIPTEN__ |
| emscripten_set_main_loop(loop, nodelay ? 0 : fps, 1); |
| #else |
| while (!done) { |
| loop(); |
| } |
| #endif |
| |
| SDL_DestroyRenderer(renderer); |
| quit(0); |
| return 0; |
| } |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |
