SDL 2.0
testcustomcursor.c
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1/*
2 Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>
3
4 This software is provided 'as-is', without any express or implied
5 warranty. In no event will the authors be held liable for any damages
6 arising from the use of this software.
7
8 Permission is granted to anyone to use this software for any purpose,
9 including commercial applications, and to alter it and redistribute it
10 freely.
11*/
12
13#include <stdlib.h>
14#include <stdio.h>
15
16#ifdef __EMSCRIPTEN__
17#include <emscripten/emscripten.h>
18#endif
19
20#include "SDL_test_common.h"
21
22/* Stolen from the mailing list */
23/* Creates a new mouse cursor from an XPM */
24
25
26/* XPM */
27static const char *arrow[] = {
28 /* width height num_colors chars_per_pixel */
29 " 32 32 3 1",
30 /* colors */
31 "X c #000000",
32 ". c #ffffff",
33 " c None",
34 /* pixels */
35 "X ",
36 "XX ",
37 "X.X ",
38 "X..X ",
39 "X...X ",
40 "X....X ",
41 "X.....X ",
42 "X......X ",
43 "X.......X ",
44 "X........X ",
45 "X.....XXXXX ",
46 "X..X..X ",
47 "X.X X..X ",
48 "XX X..X ",
49 "X X..X ",
50 " X..X ",
51 " X..X ",
52 " X..X ",
53 " XX ",
54 " ",
55 " ",
56 " ",
57 " ",
58 " ",
59 " ",
60 " ",
61 " ",
62 " ",
63 " ",
64 " ",
65 " ",
66 " ",
67 "0,0"
68};
69
70static SDL_Cursor*
71init_color_cursor(const char *file)
72{
75 if (surface) {
76 if (surface->format->palette) {
77 SDL_SetColorKey(surface, 1, *(Uint8 *) surface->pixels);
78 } else {
79 switch (surface->format->BitsPerPixel) {
80 case 15:
81 SDL_SetColorKey(surface, 1, (*(Uint16 *)surface->pixels) & 0x00007FFF);
82 break;
83 case 16:
84 SDL_SetColorKey(surface, 1, *(Uint16 *)surface->pixels);
85 break;
86 case 24:
87 SDL_SetColorKey(surface, 1, (*(Uint32 *)surface->pixels) & 0x00FFFFFF);
88 break;
89 case 32:
90 SDL_SetColorKey(surface, 1, *(Uint32 *)surface->pixels);
91 break;
92 }
93 }
96 }
97 return cursor;
98}
99
100static SDL_Cursor*
102{
103 int i, row, col;
104 Uint8 data[4*32];
105 Uint8 mask[4*32];
106 int hot_x, hot_y;
107
108 i = -1;
109 for (row=0; row<32; ++row) {
110 for (col=0; col<32; ++col) {
111 if (col % 8) {
112 data[i] <<= 1;
113 mask[i] <<= 1;
114 } else {
115 ++i;
116 data[i] = mask[i] = 0;
117 }
118 switch (image[4+row][col]) {
119 case 'X':
120 data[i] |= 0x01;
121 mask[i] |= 0x01;
122 break;
123 case '.':
124 mask[i] |= 0x01;
125 break;
126 case ' ':
127 break;
128 }
129 }
130 }
131 sscanf(image[4+row], "%d,%d", &hot_x, &hot_y);
132 return SDL_CreateCursor(data, mask, 32, 32, hot_x, hot_y);
133}
134
138static int current_cursor;
139static int show_cursor;
140
141/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
142static void
143quit(int rc)
144{
146 exit(rc);
147}
148
149void
151{
152 int i;
154 /* Check for events */
155 while (SDL_PollEvent(&event)) {
157 if (event.type == SDL_MOUSEBUTTONDOWN) {
158 if (event.button.button == SDL_BUTTON_LEFT) {
161 current_cursor = 0;
162 }
164 } else {
167 }
168 }
169 }
170
171 for (i = 0; i < state->num_windows; ++i) {
175 }
176#ifdef __EMSCRIPTEN__
177 if (done) {
178 emscripten_cancel_main_loop();
179 }
180#endif
181}
182
183int
184main(int argc, char *argv[])
185{
186 int i;
187 const char *color_cursor = NULL;
188
189 /* Enable standard application logging */
191
192 /* Initialize test framework */
194 if (!state) {
195 return 1;
196 }
197 for (i = 1; i < argc;) {
198 int consumed;
199
200 consumed = SDLTest_CommonArg(state, i);
201 if (consumed == 0) {
202 color_cursor = argv[i];
203 break;
204 }
205 if (consumed < 0) {
207 quit(1);
208 }
209 i += consumed;
210 }
211
213 quit(2);
214 }
215
216 for (i = 0; i < state->num_windows; ++i) {
218 SDL_SetRenderDrawColor(renderer, 0xA0, 0xA0, 0xA0, 0xFF);
220 }
221
222 if (color_cursor) {
223 cursors[0] = init_color_cursor(color_cursor);
224 } else {
226 }
227 if (!cursors[0]) {
228 SDL_Log("Error, couldn't create cursor\n");
229 quit(2);
230 }
231 for (i = 0; i < SDL_NUM_SYSTEM_CURSORS; ++i) {
233 if (!cursors[1+i]) {
234 SDL_Log("Error, couldn't create system cursor %d\n", i);
235 quit(2);
236 }
237 }
239
240 /* Main render loop */
241 done = 0;
242#ifdef __EMSCRIPTEN__
243 emscripten_set_main_loop(loop, 0, 1);
244#else
245 while (!done) {
246 loop();
247 }
248#endif
249
250 for (i = 0; i < SDL_arraysize(cursors); ++i) {
252 }
253 quit(0);
254
255 /* keep the compiler happy ... */
256 return(0);
257}
258
259/* vi: set ts=4 sw=4 expandtab: */
#define SDL_INIT_VIDEO
Definition: SDL.h:79
#define SDL_RenderPresent
#define SDL_SetColorKey
#define SDL_CreateCursor
#define SDL_PollEvent
#define SDL_SetRenderDrawColor
#define SDL_CreateSystemCursor
#define SDL_ShowCursor
#define SDL_LogSetPriority
#define SDL_RenderClear
#define SDL_CreateColorCursor
#define SDL_SetCursor
#define SDL_FreeCursor
#define SDL_FreeSurface
#define SDL_Log
@ SDL_MOUSEBUTTONDOWN
Definition: SDL_events.h:106
int uint32_t uint32_t uint32_t uint32_t uint32_t int drmModeModeInfoPtr mode int uint32_t uint32_t uint32_t uint32_t int32_t hot_x
Definition: SDL_kmsdrmsym.h:57
@ SDL_LOG_PRIORITY_INFO
Definition: SDL_log.h:106
@ SDL_LOG_CATEGORY_APPLICATION
Definition: SDL_log.h:66
SDL_SystemCursor
Cursor types for SDL_CreateSystemCursor().
Definition: SDL_mouse.h:47
@ SDL_NUM_SYSTEM_CURSORS
Definition: SDL_mouse.h:60
#define SDL_BUTTON_LEFT
Definition: SDL_mouse.h:282
GLeglImageOES image
Definition: SDL_opengl.h:2148
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: SDL_opengl.h:1974
struct _cl_event * event
GLenum GLenum void * row
GLenum GLint GLuint mask
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:115
uint32_t Uint32
Definition: SDL_stdinc.h:203
uint16_t Uint16
Definition: SDL_stdinc.h:191
uint8_t Uint8
Definition: SDL_stdinc.h:179
#define SDL_LoadBMP(file)
Definition: SDL_surface.h:201
void SDLTest_CommonQuit(SDLTest_CommonState *state)
Close test window.
SDLTest_CommonState * SDLTest_CommonCreateState(char **argv, Uint32 flags)
Parse command line parameters and create common state.
void SDLTest_CommonEvent(SDLTest_CommonState *state, SDL_Event *event, int *done)
Common event handler for test windows.
int SDLTest_CommonArg(SDLTest_CommonState *state, int index)
Process one common argument.
SDL_bool SDLTest_CommonInit(SDLTest_CommonState *state)
Open test window.
void SDLTest_CommonLogUsage(SDLTest_CommonState *state, const char *argv0, const char **options)
Logs command line usage info.
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define NULL
Definition: begin_code.h:167
EGLSurface surface
Definition: eglext.h:248
A collection of pixels used in software blitting.
Definition: SDL_surface.h:71
SDL_Renderer ** renderers
static SDL_Renderer * renderer
int main(int argc, char *argv[])
static void quit(int rc)
static int current_cursor
int done
static const char * arrow[]
static SDL_Cursor * init_color_cursor(const char *file)
static SDL_Cursor * init_system_cursor(const char *image[])
static SDL_Cursor * cursors[1+SDL_NUM_SYSTEM_CURSORS]
static SDLTest_CommonState * state
void loop()
static int show_cursor
SDL_Cursor * cursor
Definition: testwm2.c:40
General event structure.
Definition: SDL_events.h:558