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annotate test/testnative.c @ 4590:1ad70fb49fcb

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Fix so many things that there is little place in this column to list them all but the result is that blending modes just work now for drawing primitives. Fixes involved: 1. Fix handling of alpha channel when SDL_BLENDMODE_NONE is set. 2. Make xrendercolor use floating-point values for color channels and then convert to 16 bit ints. 3. Fix handling of visuals in SDL_x11modes.c so that a 32 bit ARGB visual is used. 4. Fix the background pixel value in SDL_x11window.c so that the window background has an alpha value of 0xFF and not 0.
author Sunny Sachanandani <sunnysachanandani@gmail.com>
date Fri, 09 Jul 2010 21:36:41 +0530
parents 64ce267332c6
children e8916fe9cfc8
rev   line source
3057
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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diff changeset
1 /* Simple program: Create a native window and attach an SDL renderer */
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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2
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3 #include <stdio.h>
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4
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5 #include "testnative.h"
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6
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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7 #define WINDOW_W 640
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8 #define WINDOW_H 480
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9 #define NUM_SPRITES 100
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10 #define MAX_SPEED 1
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11
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12 static NativeWindowFactory *factories[] = {
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13 #ifdef TEST_NATIVE_WIN32
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14 &Win32WindowFactory,
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15 #endif
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16 #ifdef TEST_NATIVE_X11
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17 &X11WindowFactory,
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18 #endif
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19 #ifdef TEST_NATIVE_COCOA
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20 &CocoaWindowFactory,
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21 #endif
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22 NULL
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23 };
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24 static NativeWindowFactory *factory = NULL;
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25 static void *native_window;
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26 static SDL_Rect *positions, *velocities;
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27
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28 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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29 static void
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30 quit(int rc)
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31 {
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32 SDL_VideoQuit();
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33 if (native_window) {
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34 factory->DestroyNativeWindow(native_window);
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35 }
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36 exit(rc);
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37 }
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38
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39 SDL_Texture *
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40 LoadSprite(SDL_Window * window, char *file)
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41 {
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42 SDL_Surface *temp;
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43 SDL_Texture *sprite;
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44
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45 /* Load the sprite image */
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46 temp = SDL_LoadBMP(file);
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47 if (temp == NULL) {
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48 fprintf(stderr, "Couldn't load %s: %s", file, SDL_GetError());
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49 return 0;
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50 }
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51
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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52 /* Set transparent pixel as the pixel at (0,0) */
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53 if (temp->format->palette) {
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54 SDL_SetColorKey(temp, SDL_SRCCOLORKEY, *(Uint8 *) temp->pixels);
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55 }
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56
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57 /* Create textures from the image */
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58 SDL_SelectRenderer(window);
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59 sprite = SDL_CreateTextureFromSurface(0, temp);
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60 if (!sprite) {
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61 fprintf(stderr, "Couldn't create texture: %s\n", SDL_GetError());
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62 SDL_FreeSurface(temp);
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63 return 0;
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64 }
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65 SDL_FreeSurface(temp);
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66
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67 /* We're ready to roll. :) */
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68 return sprite;
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69 }
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70
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71 void
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72 MoveSprites(SDL_Window * window, SDL_Texture * sprite)
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73 {
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74 int i, n;
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75 int window_w, window_h;
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76 int sprite_w, sprite_h;
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77 SDL_Rect *position, *velocity;
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78
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79 SDL_SelectRenderer(window);
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80
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81 /* Query the sizes */
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82 SDL_GetWindowSize(window, &window_w, &window_h);
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83 SDL_QueryTexture(sprite, NULL, NULL, &sprite_w, &sprite_h);
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84
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85 /* Move the sprite, bounce at the wall, and draw */
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86 n = 0;
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87 SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
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88 SDL_RenderClear();
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89 for (i = 0; i < NUM_SPRITES; ++i) {
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90 position = &positions[i];
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91 velocity = &velocities[i];
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92 position->x += velocity->x;
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93 if ((position->x < 0) || (position->x >= (window_w - sprite_w))) {
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94 velocity->x = -velocity->x;
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95 position->x += velocity->x;
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96 }
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97 position->y += velocity->y;
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98 if ((position->y < 0) || (position->y >= (window_h - sprite_h))) {
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99 velocity->y = -velocity->y;
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100 position->y += velocity->y;
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101 }
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102
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103 /* Blit the sprite onto the screen */
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104 SDL_RenderCopy(sprite, NULL, position);
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105 }
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106
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107 /* Update the screen! */
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108 SDL_RenderPresent();
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109 }
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110
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111 int
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112 main(int argc, char *argv[])
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113 {
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114 int i, done;
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115 const char *driver;
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116 SDL_Window *window;
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117 SDL_Texture *sprite;
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118 int window_w, window_h;
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119 int sprite_w, sprite_h;
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120 SDL_Event event;
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121
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122 if (SDL_VideoInit(NULL, 0) < 0) {
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123 fprintf(stderr, "Couldn't initialize SDL video: %s\n",
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124 SDL_GetError());
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125 exit(1);
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126 }
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127 driver = SDL_GetCurrentVideoDriver();
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128
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129 /* Find a native window driver and create a native window */
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130 for (i = 0; factories[i]; ++i) {
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131 if (SDL_strcmp(driver, factories[i]->tag) == 0) {
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132 factory = factories[i];
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133 break;
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134 }
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135 }
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136 if (!factory) {
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137 fprintf(stderr, "Couldn't find native window code for %s driver\n",
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138 driver);
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139 quit(2);
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140 }
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141 printf("Creating native window for %s driver\n", driver);
3060
4cf533f434d8 Implemented Win32 version of the native window test
Sam Lantinga <slouken@libsdl.org>
parents: 3057
diff changeset
142 native_window = factory->CreateNativeWindow(WINDOW_W, WINDOW_H);
3057
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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diff changeset
143 if (!native_window) {
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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parents:
diff changeset
144 fprintf(stderr, "Couldn't create native window\n");
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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diff changeset
145 quit(3);
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
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146 }
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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147 window = SDL_CreateWindowFrom(native_window);
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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diff changeset
148 if (!window) {
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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diff changeset
149 fprintf(stderr, "Couldn't create SDL window: %s\n", SDL_GetError());
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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150 quit(4);
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
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diff changeset
151 }
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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diff changeset
152 SDL_SetWindowTitle(window, "SDL Native Window Test");
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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153
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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diff changeset
154 /* Create the renderer */
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
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diff changeset
155 if (SDL_CreateRenderer(window, -1, 0) < 0) {
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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parents:
diff changeset
156 fprintf(stderr, "Couldn't create renderer: %s\n", SDL_GetError());
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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157 quit(5);
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
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158 }
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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diff changeset
159
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
160 /* Clear the window, load the sprite and go! */
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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161 SDL_SelectRenderer(window);
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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162 SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
163 SDL_RenderClear();
3057
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
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diff changeset
164
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
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diff changeset
165 sprite = LoadSprite(window, "icon.bmp");
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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diff changeset
166 if (!sprite) {
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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parents:
diff changeset
167 quit(6);
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
168 }
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
169
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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parents:
diff changeset
170 /* Allocate memory for the sprite info */
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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diff changeset
171 SDL_GetWindowSize(window, &window_w, &window_h);
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
172 SDL_QueryTexture(sprite, NULL, NULL, &sprite_w, &sprite_h);
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
173 positions = (SDL_Rect *) SDL_malloc(NUM_SPRITES * sizeof(SDL_Rect));
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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parents:
diff changeset
174 velocities = (SDL_Rect *) SDL_malloc(NUM_SPRITES * sizeof(SDL_Rect));
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
175 if (!positions || !velocities) {
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
176 fprintf(stderr, "Out of memory!\n");
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
177 quit(2);
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
178 }
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
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diff changeset
179 srand(time(NULL));
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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diff changeset
180 for (i = 0; i < NUM_SPRITES; ++i) {
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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parents:
diff changeset
181 positions[i].x = rand() % (window_w - sprite_w);
089a77aebb7d Added test program for SDL_CreateWindowFrom()
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diff changeset
182 positions[i].y = rand() % (window_h - sprite_h);
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
183 positions[i].w = sprite_w;
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
184 positions[i].h = sprite_h;
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
185 velocities[i].x = 0;
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
186 velocities[i].y = 0;
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
187 while (!velocities[i].x && !velocities[i].y) {
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
188 velocities[i].x = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
189 velocities[i].y = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
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diff changeset
190 }
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
191 }
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
192
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
193 /* Main render loop */
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
194 done = 0;
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
195 while (!done) {
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
196 /* Check for events */
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
197 while (SDL_PollEvent(&event)) {
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
198 switch (event.type) {
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
199 case SDL_WINDOWEVENT:
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
200 switch (event.window.event) {
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
201 case SDL_WINDOWEVENT_EXPOSED:
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
202 SDL_SelectRenderer(event.window.windowID);
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
203 SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF);
3596
f638ded38b8a Added SDL_RenderClear() as a fast method of clearing the screen to the drawing color.
Sam Lantinga <slouken@libsdl.org>
parents: 3536
diff changeset
204 SDL_RenderClear();
3057
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
205 break;
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
206 }
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
207 break;
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
208 case SDL_QUIT:
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
209 done = 1;
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
210 break;
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
211 default:
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
212 break;
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
213 }
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
214 }
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
215 MoveSprites(window, sprite);
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
216 }
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
217
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
218 quit(0);
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
219 }
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
220
089a77aebb7d Added test program for SDL_CreateWindowFrom()
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
221 /* vi: set ts=4 sw=4 expandtab: */