Edit
kc3-lang/SDL/test/teststreaming.c
Philipp Wiesemann
- test/teststreaming.c
-
/* Copyright (C) 1997-2015 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. */ /******************************************************************************** * * * Running moose :) Coded by Mike Gorchak. * * * ********************************************************************************/ #include <stdlib.h> #include <stdio.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, 255}, {66, 24, 0, 255}, {66, 33, 0, 255}, {66, 66, 66, 255}, {66, 115, 49, 255}, {74, 33, 0, 255}, {74, 41, 16, 255}, {82, 33, 8, 255}, {82, 41, 8, 255}, {82, 49, 16, 255}, {82, 82, 82, 255}, {90, 41, 8, 255}, {90, 41, 16, 255}, {90, 57, 24, 255}, {99, 49, 16, 255}, {99, 66, 24, 255}, {99, 66, 33, 255}, {99, 74, 33, 255}, {107, 57, 24, 255}, {107, 82, 41, 255}, {115, 57, 33, 255}, {115, 66, 33, 255}, {115, 66, 41, 255}, {115, 74, 0, 255}, {115, 90, 49, 255}, {115, 115, 115, 255}, {123, 82, 0, 255}, {123, 99, 57, 255}, {132, 66, 41, 255}, {132, 74, 41, 255}, {132, 90, 8, 255}, {132, 99, 33, 255}, {132, 99, 66, 255}, {132, 107, 66, 255}, {140, 74, 49, 255}, {140, 99, 16, 255}, {140, 107, 74, 255}, {140, 115, 74, 255}, {148, 107, 24, 255}, {148, 115, 82, 255}, {148, 123, 74, 255}, {148, 123, 90, 255}, {156, 115, 33, 255}, {156, 115, 90, 255}, {156, 123, 82, 255}, {156, 132, 82, 255}, {156, 132, 99, 255}, {156, 156, 156, 255}, {165, 123, 49, 255}, {165, 123, 90, 255}, {165, 132, 82, 255}, {165, 132, 90, 255}, {165, 132, 99, 255}, {165, 140, 90, 255}, {173, 132, 57, 255}, {173, 132, 99, 255}, {173, 140, 107, 255}, {173, 140, 115, 255}, {173, 148, 99, 255}, {173, 173, 173, 255}, {181, 140, 74, 255}, {181, 148, 115, 255}, {181, 148, 123, 255}, {181, 156, 107, 255}, {189, 148, 123, 255}, {189, 156, 82, 255}, {189, 156, 123, 255}, {189, 156, 132, 255}, {189, 189, 189, 255}, {198, 156, 123, 255}, {198, 165, 132, 255}, {206, 165, 99, 255}, {206, 165, 132, 255}, {206, 173, 140, 255}, {206, 206, 206, 255}, {214, 173, 115, 255}, {214, 173, 140, 255}, {222, 181, 148, 255}, {222, 189, 132, 255}, {222, 189, 156, 255}, {222, 222, 222, 255}, {231, 198, 165, 255}, {231, 231, 231, 255}, {239, 206, 173, 255} }; Uint8 MooseFrames[MOOSEFRAMES_COUNT][MOOSEFRAME_SIZE]; SDL_Renderer *renderer; int frame; SDL_Texture *MooseTexture; SDL_bool done = SDL_FALSE; void quit(int rc) { SDL_Quit(); exit(rc); } void UpdateTexture(SDL_Texture *texture, int frame) { SDL_Color *color; Uint8 *src; Uint32 *dst; int row, col; void *pixels; int pitch; if (SDL_LockTexture(texture, NULL, &pixels, &pitch) < 0) { SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't lock texture: %s\n", SDL_GetError()); quit(5); } src = MooseFrames[frame]; for (row = 0; row < MOOSEPIC_H; ++row) { dst = (Uint32*)((Uint8*)pixels + row * pitch); for (col = 0; col < MOOSEPIC_W; ++col) { color = &MooseColors[*src++]; *dst++ = (0xFF000000|(color->r<<16)|(color->g<<8)|color->b); } } SDL_UnlockTexture(texture); } void loop() { SDL_Event event; while (SDL_PollEvent(&event)) { switch (event.type) { case SDL_KEYDOWN: if (event.key.keysym.sym == SDLK_ESCAPE) { done = SDL_TRUE; } break; case SDL_QUIT: done = SDL_TRUE; break; } } frame = (frame + 1) % MOOSEFRAMES_COUNT; UpdateTexture(MooseTexture, frame); SDL_RenderClear(renderer); SDL_RenderCopy(renderer, MooseTexture, NULL, NULL); SDL_RenderPresent(renderer); #ifdef __EMSCRIPTEN__ if (done) { emscripten_cancel_main_loop(); } #endif } int main(int argc, char **argv) { SDL_Window *window; SDL_RWops *handle; /* 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 1; } /* load the 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"); quit(2); } SDL_RWread(handle, MooseFrames, MOOSEFRAME_SIZE, MOOSEFRAMES_COUNT); SDL_RWclose(handle); /* Create the window and renderer */ window = SDL_CreateWindow("Happy Moose", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, MOOSEPIC_W*4, MOOSEPIC_H*4, SDL_WINDOW_RESIZABLE); if (!window) { SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create window: %s\n", SDL_GetError()); quit(3); } renderer = SDL_CreateRenderer(window, -1, 0); if (!renderer) { SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create renderer: %s\n", SDL_GetError()); quit(4); } MooseTexture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, MOOSEPIC_W, MOOSEPIC_H); if (!MooseTexture) { SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create texture: %s\n", SDL_GetError()); quit(5); } /* Loop, waiting for QUIT or the escape key */ frame = 0; #ifdef __EMSCRIPTEN__ emscripten_set_main_loop(loop, 0, 1); #else while (!done) { loop(); } #endif SDL_DestroyRenderer(renderer); quit(0); return 0; } /* vi: set ts=4 sw=4 expandtab: */