Mercurial > sdl-ios-xcode
annotate test/testsprite2.c @ 3164:c5b2884c26b4
Added an ifdef so that if you
#define SDL_NO_COMPAT
before you include SDL.h then SDL_compat.h will never be included in your code.
This is useful for making sure that your code uses only SDL 1.3 features.
It is also handy for finding things that are in SDL_compat.h that belong elsewhere.
author | Bob Pendleton <bob@pendleton.com> |
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date | Thu, 04 Jun 2009 21:00:45 +0000 |
parents | 9dde605c7540 |
children | d1436442215f |
rev | line source |
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1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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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> |
1907
06c27a737b7a
Streamlined the API a bit and optimized the software renderer.
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1904
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4 #include <stdio.h> |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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5 #include <time.h> |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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6 |
1914
051df511279c
Added a test program framework for easy initialization.
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parents:
1907
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7 #include "common.h" |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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8 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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9 #define NUM_SPRITES 100 |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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10 #define MAX_SPEED 1 |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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11 |
1914
051df511279c
Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
parents:
1907
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12 static CommonState *state; |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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13 static int num_sprites; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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14 static SDL_TextureID *sprites; |
1985
8055185ae4ed
Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents:
1965
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15 static SDL_bool cycle_color; |
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Added source color and alpha modulation support.
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16 static SDL_bool cycle_alpha; |
8055185ae4ed
Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
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1965
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17 static int cycle_direction = 1; |
8055185ae4ed
Added source color and alpha modulation support.
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1965
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18 static int current_alpha = 0; |
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Added source color and alpha modulation support.
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19 static int current_color = 0; |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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20 static SDL_Rect *positions; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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21 static SDL_Rect *velocities; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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22 static int sprite_w, sprite_h; |
2884
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Date: Fri, 19 Dec 2008 20:17:35 +0100
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23 static SDL_BlendMode blendMode = SDL_BLENDMODE_MASK; |
1965
a788656ca29a
SDL constants are all uppercase.
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1917
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24 static SDL_TextureScaleMode scaleMode = SDL_TEXTURESCALEMODE_NONE; |
1895
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25 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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26 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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27 static void |
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28 quit(int rc) |
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29 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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30 if (sprites) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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31 SDL_free(sprites); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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32 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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33 if (positions) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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34 SDL_free(positions); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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35 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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36 if (velocities) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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37 SDL_free(velocities); |
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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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38 } |
1914
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Added a test program framework for easy initialization.
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39 CommonQuit(state); |
1895
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40 exit(rc); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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41 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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42 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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43 int |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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44 LoadSprite(char *file) |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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45 { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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46 int i; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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47 SDL_Surface *temp; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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48 |
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49 /* Load the sprite image */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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50 temp = SDL_LoadBMP(file); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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51 if (temp == NULL) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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52 fprintf(stderr, "Couldn't load %s: %s", file, SDL_GetError()); |
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53 return (-1); |
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54 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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55 sprite_w = temp->w; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents:
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56 sprite_h = temp->h; |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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57 |
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58 /* Set transparent pixel as the pixel at (0,0) */ |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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59 if (temp->format->palette) { |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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60 SDL_SetColorKey(temp, SDL_SRCCOLORKEY, *(Uint8 *) temp->pixels); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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61 } |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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62 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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63 /* Create textures from the image */ |
1914
051df511279c
Added a test program framework for easy initialization.
Sam Lantinga <slouken@libsdl.org>
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64 for (i = 0; i < state->num_windows; ++i) { |
051df511279c
Added a test program framework for easy initialization.
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65 SDL_SelectRenderer(state->windows[i]); |
2222
926294b2bb4e
Emphasized the separation between SDL_Surface and SDL_Texture
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1985
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66 sprites[i] = SDL_CreateTextureFromSurface(0, temp); |
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67 if (!sprites[i]) { |
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68 fprintf(stderr, "Couldn't create texture: %s\n", SDL_GetError()); |
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69 SDL_FreeSurface(temp); |
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70 return (-1); |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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71 } |
1985
8055185ae4ed
Added source color and alpha modulation support.
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parents:
1965
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72 SDL_SetTextureBlendMode(sprites[i], blendMode); |
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73 SDL_SetTextureScaleMode(sprites[i], scaleMode); |
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74 } |
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75 SDL_FreeSurface(temp); |
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76 |
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77 /* We're ready to roll. :) */ |
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78 return (0); |
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79 } |
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80 |
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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81 void |
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82 MoveSprites(SDL_WindowID window, SDL_TextureID sprite) |
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83 { |
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84 int i, n; |
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85 int window_w, window_h; |
2783
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Fixed Direct3D rendering
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86 SDL_Rect *position, *velocity; |
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87 |
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88 SDL_SelectRenderer(window); |
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89 |
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90 /* Query the sizes */ |
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91 SDL_GetWindowSize(window, &window_w, &window_h); |
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92 |
1985
8055185ae4ed
Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents:
1965
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93 /* Cycle the color and alpha, if desired */ |
8055185ae4ed
Added source color and alpha modulation support.
Sam Lantinga <slouken@libsdl.org>
parents:
1965
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94 if (cycle_color) { |
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Added source color and alpha modulation support.
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95 current_color += cycle_direction; |
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Added source color and alpha modulation support.
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96 if (current_color < 0) { |
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Added source color and alpha modulation support.
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97 current_color = 0; |
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98 cycle_direction = -cycle_direction; |
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99 } |
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Added source color and alpha modulation support.
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100 if (current_color > 255) { |
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Added source color and alpha modulation support.
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101 current_color = 255; |
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Added source color and alpha modulation support.
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102 cycle_direction = -cycle_direction; |
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103 } |
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104 SDL_SetTextureColorMod(sprite, 255, (Uint8) current_color, |
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Added source color and alpha modulation support.
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105 (Uint8) current_color); |
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106 } |
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Added source color and alpha modulation support.
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107 if (cycle_alpha) { |
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Added source color and alpha modulation support.
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108 current_alpha += cycle_direction; |
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Added source color and alpha modulation support.
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109 if (current_alpha < 0) { |
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Added source color and alpha modulation support.
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110 current_alpha = 0; |
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Added source color and alpha modulation support.
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111 cycle_direction = -cycle_direction; |
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112 } |
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Added source color and alpha modulation support.
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113 if (current_alpha > 255) { |
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Added source color and alpha modulation support.
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114 current_alpha = 255; |
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Added source color and alpha modulation support.
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115 cycle_direction = -cycle_direction; |
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Added source color and alpha modulation support.
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116 } |
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Added source color and alpha modulation support.
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117 SDL_SetTextureAlphaMod(sprite, (Uint8) current_alpha); |
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118 } |
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119 |
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120 /* Move the sprite, bounce at the wall, and draw */ |
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121 n = 0; |
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122 SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF); |
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123 SDL_RenderFill(NULL); |
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124 for (i = 0; i < num_sprites; ++i) { |
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125 position = &positions[i]; |
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126 velocity = &velocities[i]; |
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127 position->x += velocity->x; |
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128 if ((position->x < 0) || (position->x >= (window_w - sprite_w))) { |
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129 velocity->x = -velocity->x; |
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130 position->x += velocity->x; |
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131 } |
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132 position->y += velocity->y; |
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134 velocity->y = -velocity->y; |
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135 position->y += velocity->y; |
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136 } |
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137 |
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138 /* Blit the sprite onto the screen */ |
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139 SDL_RenderCopy(sprite, NULL, position); |
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140 } |
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141 |
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142 /* Update the screen! */ |
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143 SDL_RenderPresent(); |
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144 } |
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145 |
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146 int |
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147 main(int argc, char *argv[]) |
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148 { |
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149 int i, done; |
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150 SDL_Event event; |
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151 Uint32 then, now, frames; |
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152 |
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153 /* Initialize parameters */ |
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154 num_sprites = NUM_SPRITES; |
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155 |
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156 /* Initialize test framework */ |
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157 state = CommonCreateState(argv, SDL_INIT_VIDEO); |
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158 if (!state) { |
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159 return 1; |
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160 } |
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161 for (i = 1; i < argc;) { |
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162 int consumed; |
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163 |
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164 consumed = CommonArg(state, i); |
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165 if (consumed == 0) { |
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166 consumed = -1; |
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167 if (SDL_strcasecmp(argv[i], "--blend") == 0) { |
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168 if (argv[i + 1]) { |
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169 if (SDL_strcasecmp(argv[i + 1], "none") == 0) { |
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170 blendMode = SDL_BLENDMODE_NONE; |
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171 consumed = 2; |
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172 } else if (SDL_strcasecmp(argv[i + 1], "mask") == 0) { |
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173 blendMode = SDL_BLENDMODE_MASK; |
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174 consumed = 2; |
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175 } else if (SDL_strcasecmp(argv[i + 1], "blend") == 0) { |
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176 blendMode = SDL_BLENDMODE_BLEND; |
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177 consumed = 2; |
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178 } else if (SDL_strcasecmp(argv[i + 1], "add") == 0) { |
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179 blendMode = SDL_BLENDMODE_ADD; |
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180 consumed = 2; |
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181 } else if (SDL_strcasecmp(argv[i + 1], "mod") == 0) { |
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182 blendMode = SDL_BLENDMODE_MOD; |
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183 consumed = 2; |
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184 } |
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185 } |
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186 } else if (SDL_strcasecmp(argv[i], "--scale") == 0) { |
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187 if (argv[i + 1]) { |
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188 if (SDL_strcasecmp(argv[i + 1], "none") == 0) { |
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189 scaleMode = SDL_TEXTURESCALEMODE_NONE; |
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190 consumed = 2; |
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191 } else if (SDL_strcasecmp(argv[i + 1], "fast") == 0) { |
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192 scaleMode = SDL_TEXTURESCALEMODE_FAST; |
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193 consumed = 2; |
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194 } else if (SDL_strcasecmp(argv[i + 1], "slow") == 0) { |
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195 scaleMode = SDL_TEXTURESCALEMODE_SLOW; |
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196 consumed = 2; |
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197 } else if (SDL_strcasecmp(argv[i + 1], "best") == 0) { |
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198 scaleMode = SDL_TEXTURESCALEMODE_BEST; |
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199 consumed = 2; |
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200 } |
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201 } |
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202 } else if (SDL_strcasecmp(argv[i], "--cyclecolor") == 0) { |
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203 cycle_color = SDL_TRUE; |
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204 consumed = 1; |
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205 } else if (SDL_strcasecmp(argv[i], "--cyclealpha") == 0) { |
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206 cycle_alpha = SDL_TRUE; |
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207 consumed = 1; |
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208 } else if (SDL_isdigit(*argv[i])) { |
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209 num_sprites = SDL_atoi(argv[i]); |
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210 consumed = 1; |
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211 } |
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212 } |
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213 if (consumed < 0) { |
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214 fprintf(stderr, |
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215 "Usage: %s %s [--blend none|mask|blend|add|mod] [--scale none|fast|slow|best] [--cyclecolor] [--cyclealpha]\n", |
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216 argv[0], CommonUsage(state)); |
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217 quit(1); |
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218 } |
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219 i += consumed; |
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220 } |
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221 if (!CommonInit(state)) { |
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222 quit(2); |
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223 } |
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224 |
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225 /* Create the windows, initialize the renderers, and load the textures */ |
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226 sprites = |
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227 (SDL_TextureID *) SDL_malloc(state->num_windows * sizeof(*sprites)); |
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228 if (!sprites) { |
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229 fprintf(stderr, "Out of memory!\n"); |
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230 quit(2); |
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231 } |
1914
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232 for (i = 0; i < state->num_windows; ++i) { |
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233 SDL_SelectRenderer(state->windows[i]); |
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234 SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF); |
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235 SDL_RenderFill(NULL); |
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236 } |
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237 if (LoadSprite("icon.bmp") < 0) { |
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238 quit(2); |
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239 } |
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240 |
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241 /* Allocate memory for the sprite info */ |
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242 positions = (SDL_Rect *) SDL_malloc(num_sprites * sizeof(SDL_Rect)); |
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243 velocities = (SDL_Rect *) SDL_malloc(num_sprites * sizeof(SDL_Rect)); |
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244 if (!positions || !velocities) { |
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245 fprintf(stderr, "Out of memory!\n"); |
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246 quit(2); |
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247 } |
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248 srand(time(NULL)); |
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SDL constants are all uppercase.
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249 if (scaleMode != SDL_TEXTURESCALEMODE_NONE) { |
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Implemented scaling in the D3D renderer
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250 sprite_w += sprite_w / 2; |
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251 sprite_h += sprite_h / 2; |
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252 } |
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253 for (i = 0; i < num_sprites; ++i) { |
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254 positions[i].x = rand() % (state->window_w - sprite_w); |
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255 positions[i].y = rand() % (state->window_h - sprite_h); |
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256 positions[i].w = sprite_w; |
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257 positions[i].h = sprite_h; |
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258 velocities[i].x = 0; |
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259 velocities[i].y = 0; |
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260 while (!velocities[i].x && !velocities[i].y) { |
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261 velocities[i].x = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED; |
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262 velocities[i].y = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED; |
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263 } |
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264 } |
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265 |
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266 /* Main render loop */ |
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267 frames = 0; |
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268 then = SDL_GetTicks(); |
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269 done = 0; |
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270 while (!done) { |
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271 /* Check for events */ |
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272 ++frames; |
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273 while (SDL_PollEvent(&event)) { |
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274 CommonEvent(state, &event, &done); |
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275 switch (event.type) { |
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276 case SDL_WINDOWEVENT: |
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277 switch (event.window.event) { |
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278 case SDL_WINDOWEVENT_EXPOSED: |
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279 SDL_SelectRenderer(event.window.windowID); |
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280 SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF); |
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281 SDL_RenderFill(NULL); |
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282 break; |
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283 } |
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284 break; |
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285 default: |
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286 break; |
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287 } |
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288 } |
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289 for (i = 0; i < state->num_windows; ++i) { |
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290 MoveSprites(state->windows[i], sprites[i]); |
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291 } |
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292 } |
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293 |
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294 /* Print out some timing information */ |
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295 now = SDL_GetTicks(); |
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296 if (now > then) { |
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298 printf("%2.2f frames per second\n", fps); |
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299 } |
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300 quit(0); |
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301 } |
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302 |
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303 /* vi: set ts=4 sw=4 expandtab: */ |