This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
teststreaming.c
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/********************************************************************************
* *
* Running moose :) Coded by Mike Gorchak. *
* *
********************************************************************************/
#include <stdlib.h>
#include <stdio.h>
#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] = {
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{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}
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};
Uint8 MooseFrames[MOOSEFRAMES_COUNT][MOOSEFRAME_SIZE];
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void quit(int rc)
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{
SDL_Quit();
exit(rc);
}
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void UpdateTexture(SDL_Texture *texture, int frame)
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{
SDL_Color *color;
Uint8 *src;
Uint32 *dst;
int row, col;
void *pixels;
int pitch;
if (SDL_LockTexture(texture, NULL, &pixels, &pitch) < 0) {
fprintf(stderr, "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);
}
int
main(int argc, char **argv)
{
SDL_Window *window;
SDL_Renderer *renderer;
SDL_RWops *handle;
SDL_Texture *MooseTexture;
SDL_Event event;
SDL_bool done = SDL_FALSE;
int frame;
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
return 1;
}
/* load the moose images */
handle = SDL_RWFromFile("moose.dat", "rb");
if (handle == NULL) {
fprintf(stderr, "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_SHOWN|SDL_WINDOW_RESIZABLE);
if (!window) {
fprintf(stderr, "Couldn't set create window: %s\n", SDL_GetError());
quit(3);
}
renderer = SDL_CreateRenderer(window, -1, 0);
if (!renderer) {
fprintf(stderr, "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) {
fprintf(stderr, "Couldn't set create texture: %s\n", SDL_GetError());
quit(5);
}
/* Loop, waiting for QUIT or the escape key */
frame = 0;
while (!done) {
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);
}
SDL_DestroyRenderer(renderer);
quit(0);
return 0;
}
/* vi: set ts=4 sw=4 expandtab: */