SDL 2.0
teststreaming.c
Go to the documentation of this file.
1/*
2 Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
3
4 This software is provided 'as-is', without any express or implied
5 warranty. In no event will the authors be held liable for any damages
6 arising from the use of this software.
7
8 Permission is granted to anyone to use this software for any purpose,
9 including commercial applications, and to alter it and redistribute it
10 freely.
11*/
12/********************************************************************************
13 * *
14 * Running moose :) Coded by Mike Gorchak. *
15 * *
16 ********************************************************************************/
17
18#include <stdlib.h>
19#include <stdio.h>
20
21#ifdef __EMSCRIPTEN__
22#include <emscripten/emscripten.h>
23#endif
24
25#include "SDL.h"
26
27#define MOOSEPIC_W 64
28#define MOOSEPIC_H 88
29
30#define MOOSEFRAME_SIZE (MOOSEPIC_W * MOOSEPIC_H)
31#define MOOSEFRAMES_COUNT 10
32
34 {49, 49, 49, 255}, {66, 24, 0, 255}, {66, 33, 0, 255}, {66, 66, 66, 255},
35 {66, 115, 49, 255}, {74, 33, 0, 255}, {74, 41, 16, 255}, {82, 33, 8, 255},
36 {82, 41, 8, 255}, {82, 49, 16, 255}, {82, 82, 82, 255}, {90, 41, 8, 255},
37 {90, 41, 16, 255}, {90, 57, 24, 255}, {99, 49, 16, 255}, {99, 66, 24, 255},
38 {99, 66, 33, 255}, {99, 74, 33, 255}, {107, 57, 24, 255}, {107, 82, 41, 255},
39 {115, 57, 33, 255}, {115, 66, 33, 255}, {115, 66, 41, 255}, {115, 74, 0, 255},
40 {115, 90, 49, 255}, {115, 115, 115, 255}, {123, 82, 0, 255}, {123, 99, 57, 255},
41 {132, 66, 41, 255}, {132, 74, 41, 255}, {132, 90, 8, 255}, {132, 99, 33, 255},
42 {132, 99, 66, 255}, {132, 107, 66, 255}, {140, 74, 49, 255}, {140, 99, 16, 255},
43 {140, 107, 74, 255}, {140, 115, 74, 255}, {148, 107, 24, 255}, {148, 115, 82, 255},
44 {148, 123, 74, 255}, {148, 123, 90, 255}, {156, 115, 33, 255}, {156, 115, 90, 255},
45 {156, 123, 82, 255}, {156, 132, 82, 255}, {156, 132, 99, 255}, {156, 156, 156, 255},
46 {165, 123, 49, 255}, {165, 123, 90, 255}, {165, 132, 82, 255}, {165, 132, 90, 255},
47 {165, 132, 99, 255}, {165, 140, 90, 255}, {173, 132, 57, 255}, {173, 132, 99, 255},
48 {173, 140, 107, 255}, {173, 140, 115, 255}, {173, 148, 99, 255}, {173, 173, 173, 255},
49 {181, 140, 74, 255}, {181, 148, 115, 255}, {181, 148, 123, 255}, {181, 156, 107, 255},
50 {189, 148, 123, 255}, {189, 156, 82, 255}, {189, 156, 123, 255}, {189, 156, 132, 255},
51 {189, 189, 189, 255}, {198, 156, 123, 255}, {198, 165, 132, 255}, {206, 165, 99, 255},
52 {206, 165, 132, 255}, {206, 173, 140, 255}, {206, 206, 206, 255}, {214, 173, 115, 255},
53 {214, 173, 140, 255}, {222, 181, 148, 255}, {222, 189, 132, 255}, {222, 189, 156, 255},
54 {222, 222, 222, 255}, {231, 198, 165, 255}, {231, 231, 231, 255}, {239, 206, 173, 255}
55};
56
58
63
64void quit(int rc)
65{
66 SDL_Quit();
67 exit(rc);
68}
69
71{
73 Uint8 *src;
74 Uint32 *dst;
75 int row, col;
76 void *pixels;
77 int pitch;
78
79 if (SDL_LockTexture(texture, NULL, &pixels, &pitch) < 0) {
80 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't lock texture: %s\n", SDL_GetError());
81 quit(5);
82 }
84 for (row = 0; row < MOOSEPIC_H; ++row) {
85 dst = (Uint32*)((Uint8*)pixels + row * pitch);
86 for (col = 0; col < MOOSEPIC_W; ++col) {
87 color = &MooseColors[*src++];
88 *dst++ = (0xFF000000|(color->r<<16)|(color->g<<8)|color->b);
89 }
90 }
92}
93
94void
96{
98
99 while (SDL_PollEvent(&event)) {
100 switch (event.type) {
101 case SDL_KEYDOWN:
102 if (event.key.keysym.sym == SDLK_ESCAPE) {
103 done = SDL_TRUE;
104 }
105 break;
106 case SDL_QUIT:
107 done = SDL_TRUE;
108 break;
109 }
110 }
111
112 frame = (frame + 1) % MOOSEFRAMES_COUNT;
114
118
119#ifdef __EMSCRIPTEN__
120 if (done) {
121 emscripten_cancel_main_loop();
122 }
123#endif
124}
125
126int
127main(int argc, char **argv)
128{
131
132 /* Enable standard application logging */
134
135 if (SDL_Init(SDL_INIT_VIDEO) < 0) {
136 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
137 return 1;
138 }
139
140 /* load the moose images */
141 handle = SDL_RWFromFile("moose.dat", "rb");
142 if (handle == NULL) {
143 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Can't find the file moose.dat !\n");
144 quit(2);
145 }
148
149
150 /* Create the window and renderer */
151 window = SDL_CreateWindow("Happy Moose",
156 if (!window) {
157 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create window: %s\n", SDL_GetError());
158 quit(3);
159 }
160
162 if (!renderer) {
163 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create renderer: %s\n", SDL_GetError());
164 quit(4);
165 }
166
168 if (!MooseTexture) {
169 SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create texture: %s\n", SDL_GetError());
170 quit(5);
171 }
172
173 /* Loop, waiting for QUIT or the escape key */
174 frame = 0;
175
176#ifdef __EMSCRIPTEN__
177 emscripten_set_main_loop(loop, 0, 1);
178#else
179 while (!done) {
180 loop();
181 }
182#endif
183
185
186 quit(0);
187 return 0;
188}
189
190/* vi: set ts=4 sw=4 expandtab: */
#define SDL_INIT_VIDEO
Definition: SDL.h:79
#define SDL_RenderPresent
#define SDL_GetError
#define SDL_PollEvent
#define SDL_DestroyRenderer
#define SDL_CreateWindow
#define SDL_CreateTexture
#define SDL_LockTexture
#define SDL_CreateRenderer
#define SDL_RWread
#define SDL_LogSetPriority
#define SDL_RenderClear
#define SDL_LogError
#define SDL_RWFromFile
#define SDL_RenderCopy
#define SDL_Quit
#define SDL_Init
#define SDL_UnlockTexture
#define SDL_RWclose
@ SDL_QUIT
Definition: SDL_events.h:60
@ SDL_KEYDOWN
Definition: SDL_events.h:96
@ SDLK_ESCAPE
Definition: SDL_keycode.h:55
@ SDL_LOG_PRIORITY_INFO
Definition: SDL_log.h:106
@ SDL_LOG_CATEGORY_APPLICATION
Definition: SDL_log.h:66
GLint GLint GLsizei GLsizei GLsizei GLint GLenum GLenum const GLvoid * pixels
Definition: SDL_opengl.h:1572
struct _cl_event * event
GLenum src
GLuint color
GLenum GLenum dst
GLenum GLenum void * row
GLenum GLenum GLuint texture
@ SDL_PIXELFORMAT_ARGB8888
Definition: SDL_pixels.h:248
@ SDL_TEXTUREACCESS_STREAMING
Definition: SDL_render.h:94
SDL_bool
Definition: SDL_stdinc.h:162
@ SDL_TRUE
Definition: SDL_stdinc.h:164
@ SDL_FALSE
Definition: SDL_stdinc.h:163
uint32_t Uint32
Definition: SDL_stdinc.h:203
uint8_t Uint8
Definition: SDL_stdinc.h:179
#define SDL_WINDOWPOS_UNDEFINED
Definition: SDL_video.h:130
@ SDL_WINDOW_RESIZABLE
Definition: SDL_video.h:105
#define NULL
Definition: begin_code.h:167
EGLImageKHR EGLint EGLint * handle
Definition: eglext.h:937
EGLSurface EGLNativeWindowType * window
Definition: eglext.h:1025
The type used to identify a window.
Definition: SDL_sysvideo.h:74
#define MOOSEPIC_H
Definition: teststreaming.c:28
#define MOOSEFRAMES_COUNT
Definition: teststreaming.c:31
int main(int argc, char **argv)
#define MOOSEPIC_W
Definition: teststreaming.c:27
SDL_Texture * MooseTexture
Definition: teststreaming.c:61
SDL_Color MooseColors[84]
Definition: teststreaming.c:33
void UpdateTexture(SDL_Texture *texture, int frame)
Definition: teststreaming.c:70
void quit(int rc)
Definition: teststreaming.c:64
SDL_Renderer * renderer
Definition: teststreaming.c:59
SDL_bool done
Definition: teststreaming.c:62
int frame
Definition: teststreaming.c:60
#define MOOSEFRAME_SIZE
Definition: teststreaming.c:30
Uint8 MooseFrames[MOOSEFRAMES_COUNT][MOOSEFRAME_SIZE]
Definition: teststreaming.c:57
void loop()
Definition: teststreaming.c:95
General event structure.
Definition: SDL_events.h:558