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annotate test/nds-test-progs/sprite/source/testsprite.c @ 2686:e9f27fe4f2a1 gsoc2008_nds

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Existing testsprite programs made into NDS projects
author Darren Alton <dalton@stevens.edu>
date Wed, 13 Aug 2008 00:49:03 +0000
parents
children 71c56e900f8b
rev   line source
2686
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
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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 <time.h>
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6 #include <math.h>
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7
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8 #include "SDL.h"
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9
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10 #define NUM_SPRITES 100
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11 #define MAX_SPEED 1
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12
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13 SDL_Surface *sprite;
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14 int numsprites;
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15 SDL_Rect *sprite_rects;
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16 SDL_Rect *positions;
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17 SDL_Rect *velocities;
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18 int sprites_visible;
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19 int debug_flip;
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20 Uint16 sprite_w, sprite_h;
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21
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22 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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23 static void
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24 quit(int rc)
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25 {
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26 SDL_Quit();
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27 exit(rc);
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28 }
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29
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30 int
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31 LoadSprite(char *file)
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32 {
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33 SDL_Surface *temp;
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34
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35 /* Load the sprite image */
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36 sprite = SDL_LoadBMP(file);
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37 if (sprite == NULL) {
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38 fprintf(stderr, "Couldn't load %s: %s", file, SDL_GetError());
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39 return (-1);
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40 }
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41
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42 /* Set transparent pixel as the pixel at (0,0) */
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43 if (sprite->format->palette) {
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44 SDL_SetColorKey(sprite, (SDL_SRCCOLORKEY | SDL_RLEACCEL),
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45 *(Uint8 *) sprite->pixels);
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46 }
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47
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48 /* Convert sprite to video format */
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49 temp = SDL_DisplayFormat(sprite);
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50 SDL_FreeSurface(sprite);
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51 if (temp == NULL) {
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52 fprintf(stderr, "Couldn't convert background: %s\n", SDL_GetError());
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53 return (-1);
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54 }
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55 sprite = temp;
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56
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57 /* We're ready to roll. :) */
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58 return (0);
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59 }
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60
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61 void
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62 MoveSprites(SDL_Surface * screen, Uint32 background)
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63 {
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64 int i, nupdates;
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65 SDL_Rect area, *position, *velocity;
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66
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67 nupdates = 0;
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68 /* Erase all the sprites if necessary */
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69 if (sprites_visible) {
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70 SDL_FillRect(screen, NULL, background);
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71 }
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72
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73 /* Move the sprite, bounce at the wall, and draw */
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74 for (i = 0; i < numsprites; ++i) {
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75 position = &positions[i];
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76 velocity = &velocities[i];
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77 position->x += velocity->x;
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78 if ((position->x < 0) || (position->x >= (screen->w - sprite_w))) {
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79 velocity->x = -velocity->x;
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80 position->x += velocity->x;
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81 }
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82 position->y += velocity->y;
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83 if ((position->y < 0) || (position->y >= (screen->h - sprite_w))) {
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84 velocity->y = -velocity->y;
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85 position->y += velocity->y;
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86 }
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87
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88 /* Blit the sprite onto the screen */
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89 area = *position;
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90 SDL_BlitSurface(sprite, NULL, screen, &area);
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91 sprite_rects[nupdates++] = area;
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92 }
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93
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94 if (debug_flip) {
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95 if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
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96 static int t = 0;
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97
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98 Uint32 color = SDL_MapRGB(screen->format, 255, 0, 0);
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99 SDL_Rect r;
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100 r.x =
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101 (sin((float) t * 2 * 3.1459) + 1.0) / 2.0 * (screen->w - 20);
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102 r.y = 0;
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103 r.w = 20;
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104 r.h = screen->h;
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105
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106 SDL_FillRect(screen, &r, color);
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107 t += 2;
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108 }
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109 }
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110
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111 /* Update the screen! */
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112 if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
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113 SDL_Flip(screen);
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114 } else {
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115 SDL_UpdateRects(screen, nupdates, sprite_rects);
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116 }
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117 sprites_visible = 1;
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118 }
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119
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120 /* This is a way of telling whether or not to use hardware surfaces */
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121 Uint32
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122 FastestFlags(Uint32 flags, int width, int height, int bpp)
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123 {
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124 const SDL_VideoInfo *info;
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125
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126 /* Hardware acceleration is only used in fullscreen mode */
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127 flags |= SDL_FULLSCREEN;
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128
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129 /* Check for various video capabilities */
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130 info = SDL_GetVideoInfo();
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131 if (info->blit_hw_CC && info->blit_fill) {
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132 /* We use accelerated colorkeying and color filling */
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133 flags |= SDL_HWSURFACE;
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134 }
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135 /* If we have enough video memory, and will use accelerated
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136 blits directly to it, then use page flipping.
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137 */
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diff changeset
138 if ((flags & SDL_HWSURFACE) == SDL_HWSURFACE) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
139 /* Direct hardware blitting without double-buffering
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
140 causes really bad flickering.
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
141 */
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
142 if (info->video_mem * 1024 > (height * width * bpp / 8)) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
143 flags |= SDL_DOUBLEBUF;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
144 } else {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
145 flags &= ~SDL_HWSURFACE;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
146 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
147 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
148
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
149 /* Return the flags */
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
150 return (flags);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
151 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
152
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
153 int
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
154 main(int argc, char *argv[])
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
155 {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
156 SDL_Surface *screen;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
157 Uint8 *mem;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
158 int width, height;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
159 Uint8 video_bpp;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
160 Uint32 videoflags;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
161 Uint32 background;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
162 int i, done;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
163 SDL_Event event;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
164 Uint32 then, now, frames;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
165
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
166 /* Initialize SDL */
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
167 if (SDL_Init(SDL_INIT_VIDEO) < 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
168 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
169 return (1);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
170 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
171
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
172 numsprites = NUM_SPRITES;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
173 videoflags = SDL_SWSURFACE | SDL_ANYFORMAT;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
174 width = 640;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
175 height = 480;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
176 video_bpp = 8;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
177 debug_flip = 0;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
178 while (argc > 1) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
179 --argc;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
180 if (strcmp(argv[argc - 1], "-width") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
181 width = atoi(argv[argc]);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
182 --argc;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
183 } else if (strcmp(argv[argc - 1], "-height") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
184 height = atoi(argv[argc]);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
185 --argc;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
186 } else if (strcmp(argv[argc - 1], "-bpp") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
187 video_bpp = atoi(argv[argc]);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
188 videoflags &= ~SDL_ANYFORMAT;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
189 --argc;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
190 } else if (strcmp(argv[argc], "-fast") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
191 videoflags = FastestFlags(videoflags, width, height, video_bpp);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
192 } else if (strcmp(argv[argc], "-hw") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
193 videoflags ^= SDL_HWSURFACE;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
194 } else if (strcmp(argv[argc], "-flip") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
195 videoflags ^= SDL_DOUBLEBUF;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
196 } else if (strcmp(argv[argc], "-debugflip") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
197 debug_flip ^= 1;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
198 } else if (strcmp(argv[argc], "-fullscreen") == 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
199 videoflags ^= SDL_FULLSCREEN;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
200 } else if (isdigit(argv[argc][0])) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
201 numsprites = atoi(argv[argc]);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
202 } else {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
203 fprintf(stderr,
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
204 "Usage: %s [-bpp N] [-hw] [-flip] [-fast] [-fullscreen] [numsprites]\n",
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
205 argv[0]);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
206 quit(1);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
207 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
208 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
209
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
210 /* Set video mode */
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
211 screen = SDL_SetVideoMode(width, height, video_bpp, videoflags);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
212 if (!screen) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
213 fprintf(stderr, "Couldn't set %dx%d video mode: %s\n",
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
214 width, height, SDL_GetError());
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
215 quit(2);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
216 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
217
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
218 /* Load the sprite */
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
219 if (LoadSprite("icon.bmp") < 0) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
220 quit(1);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
221 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
222
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
223 /* Allocate memory for the sprite info */
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
224 mem = (Uint8 *) malloc(4 * sizeof(SDL_Rect) * numsprites);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
225 if (mem == NULL) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
226 SDL_FreeSurface(sprite);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
227 fprintf(stderr, "Out of memory!\n");
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
228 quit(2);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
229 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
230 sprite_rects = (SDL_Rect *) mem;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
231 positions = sprite_rects;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
232 sprite_rects += numsprites;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
233 velocities = sprite_rects;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
234 sprite_rects += numsprites;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
235 sprite_w = sprite->w;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
236 sprite_h = sprite->h;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
237 srand(time(NULL));
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
238 for (i = 0; i < numsprites; ++i) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
239 positions[i].x = rand() % (screen->w - sprite_w);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
240 positions[i].y = rand() % (screen->h - sprite_h);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
241 positions[i].w = sprite->w;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
242 positions[i].h = sprite->h;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
243 velocities[i].x = 0;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
244 velocities[i].y = 0;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
245 while (!velocities[i].x && !velocities[i].y) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
246 velocities[i].x = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
247 velocities[i].y = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
248 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
249 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
250 background = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
251
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
252 /* Print out information about our surfaces */
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
253 printf("Screen is at %d bits per pixel\n", screen->format->BitsPerPixel);
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
254 if ((screen->flags & SDL_HWSURFACE) == SDL_HWSURFACE) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
255 printf("Screen is in video memory\n");
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
256 } else {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
257 printf("Screen is in system memory\n");
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
258 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
259 if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
260 printf("Screen has double-buffering enabled\n");
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
261 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
262 if ((sprite->flags & SDL_HWSURFACE) == SDL_HWSURFACE) {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
263 printf("Sprite is in video memory\n");
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
264 } else {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
265 printf("Sprite is in system memory\n");
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
266 }
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
267 /* Run a sample blit to trigger blit acceleration */
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
268 {
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
269 SDL_Rect dst;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
270 dst.x = 0;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
271 dst.y = 0;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
272 dst.w = sprite->w;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
273 dst.h = sprite->h;
e9f27fe4f2a1 Existing testsprite programs made into NDS projects
Darren Alton <dalton@stevens.edu>
parents:
diff changeset
274 SDL_BlitSurface(sprite, NULL, screen, &dst);
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275 SDL_FillRect(screen, &dst, background);
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276 }
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277 if ((sprite->flags & SDL_HWACCEL) == SDL_HWACCEL) {
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278 printf("Sprite blit uses hardware acceleration\n");
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279 }
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280 if ((sprite->flags & SDL_RLEACCEL) == SDL_RLEACCEL) {
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281 printf("Sprite blit uses RLE acceleration\n");
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282 }
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283
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284 /* Loop, blitting sprites and waiting for a keystroke */
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285 frames = 0;
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286 then = SDL_GetTicks();
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287 done = 0;
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288 sprites_visible = 0;
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289 while (!done) {
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290 /* Check for events */
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291 ++frames;
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292 while (SDL_PollEvent(&event)) {
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293 switch (event.type) {
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294 case SDL_MOUSEBUTTONDOWN:
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295 SDL_WarpMouse(screen->w / 2, screen->h / 2);
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296 break;
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297 case SDL_KEYDOWN:
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298 /* Any keypress quits the app... */
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299 case SDL_QUIT:
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300 done = 1;
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301 break;
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302 default:
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303 break;
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304 }
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305 }
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306 MoveSprites(screen, background);
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307 }
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308 SDL_FreeSurface(sprite);
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309 free(mem);
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310
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311 /* Print out some timing information */
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312 now = SDL_GetTicks();
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313 if (now > then) {
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314 printf("%2.2f frames per second\n",
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315 ((double) frames * 1000) / (now - then));
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316 }
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317 SDL_Quit();
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318 return (0);
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319 }