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annotate test/testsprite.c @ 3566:07c8339c95c6

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Fixed bug #905 Give the foreign window message proc more control over Windows events. This may need to be adjusted when we add the capability for the app to specify whether it wants SDL to handle input for the window or not.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 15 Dec 2009 09:20:10 +0000
parents 9de326b3099c
children 27ab20a36eba
rev   line source
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1 /* Simple program: Move N sprites around on the screen as fast as possible */
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2
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3 #include <stdlib.h>
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4 #include <stdio.h>
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5 #include <string.h>
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6 #include <ctype.h>
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7 #include <time.h>
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8 #include <math.h>
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9
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10 #include "SDL.h"
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11
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12 #define NUM_SPRITES 100
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13 #define MAX_SPEED 1
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14
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15 SDL_Surface *sprite;
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16 int numsprites;
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17 SDL_Rect *sprite_rects;
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18 SDL_Rect *positions;
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19 SDL_Rect *velocities;
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20 int sprites_visible;
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21 int debug_flip;
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22 Uint16 sprite_w, sprite_h;
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23
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24 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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25 static void
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26 quit(int rc)
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27 {
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28 SDL_Quit();
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29 exit(rc);
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30 }
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31
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32 int
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33 LoadSprite(char *file)
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34 {
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35 SDL_Surface *temp;
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36
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37 /* Load the sprite image */
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38 sprite = SDL_LoadBMP(file);
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39 if (sprite == NULL) {
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40 fprintf(stderr, "Couldn't load %s: %s", file, SDL_GetError());
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41 return (-1);
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42 }
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43
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44 /* Set transparent pixel as the pixel at (0,0) */
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45 if (sprite->format->palette) {
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46 SDL_SetColorKey(sprite, (SDL_SRCCOLORKEY | SDL_RLEACCEL),
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47 *(Uint8 *) sprite->pixels);
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48 }
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49
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50 /* Convert sprite to video format */
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51 temp = SDL_DisplayFormat(sprite);
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52 SDL_FreeSurface(sprite);
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53 if (temp == NULL) {
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54 fprintf(stderr, "Couldn't convert background: %s\n", SDL_GetError());
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55 return (-1);
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56 }
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57 sprite = temp;
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58
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59 /* We're ready to roll. :) */
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60 return (0);
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61 }
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62
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63 void
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64 MoveSprites(SDL_Surface * screen, Uint32 background)
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65 {
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66 int i, nupdates;
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67 SDL_Rect area, *position, *velocity;
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68
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69 nupdates = 0;
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70 /* Erase all the sprites if necessary */
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71 if (sprites_visible) {
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72 SDL_FillRect(screen, NULL, background);
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73 }
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74
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75 /* Move the sprite, bounce at the wall, and draw */
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76 for (i = 0; i < numsprites; ++i) {
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77 position = &positions[i];
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78 velocity = &velocities[i];
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79 position->x += velocity->x;
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80 if ((position->x < 0) || (position->x >= (screen->w - sprite_w))) {
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81 velocity->x = -velocity->x;
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82 position->x += velocity->x;
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83 }
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84 position->y += velocity->y;
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85 if ((position->y < 0) || (position->y >= (screen->h - sprite_w))) {
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86 velocity->y = -velocity->y;
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87 position->y += velocity->y;
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88 }
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89
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90 /* Blit the sprite onto the screen */
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91 area = *position;
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92 SDL_BlitSurface(sprite, NULL, screen, &area);
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93 sprite_rects[nupdates++] = area;
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94 }
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95
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96 if (debug_flip) {
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97 if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
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98 static int t = 0;
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99
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100 Uint32 color = SDL_MapRGB(screen->format, 255, 0, 0);
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101 SDL_Rect r;
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102 r.x =
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103 (sin((float) t * 2 * 3.1459) + 1.0) / 2.0 * (screen->w - 20);
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104 r.y = 0;
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105 r.w = 20;
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106 r.h = screen->h;
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107
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108 SDL_FillRect(screen, &r, color);
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109 t += 2;
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110 }
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111 }
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112
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113 /* Update the screen! */
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114 if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
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115 SDL_Flip(screen);
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116 } else {
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117 SDL_UpdateRects(screen, nupdates, sprite_rects);
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118 }
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119 sprites_visible = 1;
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120 }
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121
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122 /* This is a way of telling whether or not to use hardware surfaces */
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123 Uint32
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124 FastestFlags(Uint32 flags, int width, int height, int bpp)
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125 {
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126 const SDL_VideoInfo *info;
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127
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128 /* Hardware acceleration is only used in fullscreen mode */
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129 flags |= SDL_FULLSCREEN;
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130
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131 /* Check for various video capabilities */
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132 info = SDL_GetVideoInfo();
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133 if (info->blit_hw_CC && info->blit_fill) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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134 /* We use accelerated colorkeying and color filling */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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135 flags |= SDL_HWSURFACE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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136 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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137 /* If we have enough video memory, and will use accelerated
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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138 blits directly to it, then use page flipping.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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139 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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140 if ((flags & SDL_HWSURFACE) == SDL_HWSURFACE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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141 /* Direct hardware blitting without double-buffering
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
142 causes really bad flickering.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
143 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
144 if (info->video_mem * 1024 > (height * width * bpp / 8)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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145 flags |= SDL_DOUBLEBUF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
146 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
147 flags &= ~SDL_HWSURFACE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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148 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
149 }
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150
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diff changeset
151 /* Return the flags */
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152 return (flags);
0
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153 }
74212992fb08 Initial revision
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154
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diff changeset
155 int
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156 main(int argc, char *argv[])
0
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157 {
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158 SDL_Surface *screen;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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159 Uint8 *mem;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
160 int width, height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
161 Uint8 video_bpp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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162 Uint32 videoflags;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
163 Uint32 background;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
164 int i, done;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
165 SDL_Event event;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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166 Uint32 then, now, frames;
0
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167
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168 /* Initialize SDL */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
169 if (SDL_Init(SDL_INIT_VIDEO) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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170 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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171 return (1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
172 }
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173
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174 numsprites = NUM_SPRITES;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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175 videoflags = SDL_SWSURFACE | SDL_ANYFORMAT;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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176 width = 640;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
177 height = 480;
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178 video_bpp = 8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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179 debug_flip = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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180 while (argc > 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
181 --argc;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
182 if (strcmp(argv[argc - 1], "-width") == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
183 width = atoi(argv[argc]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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184 --argc;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
185 } else if (strcmp(argv[argc - 1], "-height") == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
186 height = atoi(argv[argc]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
187 --argc;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
188 } else if (strcmp(argv[argc - 1], "-bpp") == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
189 video_bpp = atoi(argv[argc]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
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190 videoflags &= ~SDL_ANYFORMAT;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
191 --argc;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
192 } else if (strcmp(argv[argc], "-fast") == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
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193 videoflags = FastestFlags(videoflags, width, height, video_bpp);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
194 } else if (strcmp(argv[argc], "-hw") == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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195 videoflags ^= SDL_HWSURFACE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
196 } else if (strcmp(argv[argc], "-flip") == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
197 videoflags ^= SDL_DOUBLEBUF;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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198 } else if (strcmp(argv[argc], "-debugflip") == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
199 debug_flip ^= 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
200 } else if (strcmp(argv[argc], "-fullscreen") == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
201 videoflags ^= SDL_FULLSCREEN;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
202 } else if (isdigit(argv[argc][0])) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
203 numsprites = atoi(argv[argc]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
204 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
205 fprintf(stderr,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
206 "Usage: %s [-bpp N] [-hw] [-flip] [-fast] [-fullscreen] [numsprites]\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
207 argv[0]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
208 quit(1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
209 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
210 }
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211
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diff changeset
212 /* Set video mode */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
213 screen = SDL_SetVideoMode(width, height, video_bpp, videoflags);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
214 if (!screen) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
215 fprintf(stderr, "Couldn't set %dx%d video mode: %s\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
216 width, height, SDL_GetError());
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
217 quit(2);
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diff changeset
218 }
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219
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diff changeset
220 /* Load the sprite */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
221 if (LoadSprite("icon.bmp") < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
222 quit(1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
223 }
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diff changeset
224
1895
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diff changeset
225 /* Allocate memory for the sprite info */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
226 mem = (Uint8 *) malloc(4 * sizeof(SDL_Rect) * numsprites);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
227 if (mem == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
228 SDL_FreeSurface(sprite);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
229 fprintf(stderr, "Out of memory!\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
230 quit(2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
231 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
232 sprite_rects = (SDL_Rect *) mem;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
233 positions = sprite_rects;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
234 sprite_rects += numsprites;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
235 velocities = sprite_rects;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
236 sprite_rects += numsprites;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
237 sprite_w = sprite->w;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
238 sprite_h = sprite->h;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
239 srand(time(NULL));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
240 for (i = 0; i < numsprites; ++i) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
241 positions[i].x = rand() % (screen->w - sprite_w);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
242 positions[i].y = rand() % (screen->h - sprite_h);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
243 positions[i].w = sprite->w;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
244 positions[i].h = sprite->h;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
245 velocities[i].x = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
246 velocities[i].y = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
247 while (!velocities[i].x && !velocities[i].y) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
248 velocities[i].x = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
249 velocities[i].y = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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diff changeset
250 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
251 }
2792
c2d9b1aff59f Show the grey background first before starting to blit sprites
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diff changeset
252
c2d9b1aff59f Show the grey background first before starting to blit sprites
Sam Lantinga <slouken@libsdl.org>
parents: 2790
diff changeset
253 /* Clear the background to grey */
2790
8c9fa61a521c Both testsprite and testsprite2 use a grey background
Sam Lantinga <slouken@libsdl.org>
parents: 2786
diff changeset
254 background = SDL_MapRGB(screen->format, 0xA0, 0xA0, 0xA0);
2792
c2d9b1aff59f Show the grey background first before starting to blit sprites
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255 SDL_FillRect(screen, NULL, background);
c2d9b1aff59f Show the grey background first before starting to blit sprites
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256 SDL_Flip(screen);
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257
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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258 /* Print out information about our surfaces */
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259 printf("Screen is at %d bits per pixel\n", screen->format->BitsPerPixel);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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260 if ((screen->flags & SDL_HWSURFACE) == SDL_HWSURFACE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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261 printf("Screen is in video memory\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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262 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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263 printf("Screen is in system memory\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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264 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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265 if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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266 printf("Screen has double-buffering enabled\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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267 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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268 if ((sprite->flags & SDL_HWSURFACE) == SDL_HWSURFACE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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269 printf("Sprite is in video memory\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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270 } else {
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271 printf("Sprite is in system memory\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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272 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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273 /* Run a sample blit to trigger blit acceleration */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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274 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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275 SDL_Rect dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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276 dst.x = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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277 dst.y = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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278 dst.w = sprite->w;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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279 dst.h = sprite->h;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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280 SDL_BlitSurface(sprite, NULL, screen, &dst);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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281 SDL_FillRect(screen, &dst, background);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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282 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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283 if ((sprite->flags & SDL_HWACCEL) == SDL_HWACCEL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
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284 printf("Sprite blit uses hardware acceleration\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
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285 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
286 if ((sprite->flags & SDL_RLEACCEL) == SDL_RLEACCEL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
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287 printf("Sprite blit uses RLE acceleration\n");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
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288 }
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74212992fb08 Initial revision
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diff changeset
289
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c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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290 /* Loop, blitting sprites and waiting for a keystroke */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
291 frames = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
292 then = SDL_GetTicks();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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293 done = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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294 sprites_visible = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
295 while (!done) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
296 /* Check for events */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
297 ++frames;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
298 while (SDL_PollEvent(&event)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
299 switch (event.type) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
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300 case SDL_MOUSEBUTTONDOWN:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
301 SDL_WarpMouse(screen->w / 2, screen->h / 2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
302 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
303 case SDL_KEYDOWN:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
304 /* Any keypress quits the app... */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
305 case SDL_QUIT:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
306 done = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
307 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
308 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
309 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
310 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
311 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
312 MoveSprites(screen, background);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
313 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
314 SDL_FreeSurface(sprite);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
315 free(mem);
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74212992fb08 Initial revision
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diff changeset
316
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
317 /* Print out some timing information */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
318 now = SDL_GetTicks();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
319 if (now > then) {
2786
Sam Lantinga <slouken@libsdl.org>
parents: 2784
diff changeset
320 double fps = ((double) frames * 1000) / (now - then);
2784
Sam Lantinga <slouken@libsdl.org>
parents: 1931
diff changeset
321 printf("%2.2f frames per second\n", fps);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1516
diff changeset
322 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
323 SDL_Quit();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1516
diff changeset
324 return (0);
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74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
325 }