Mercurial > sdl-ios-xcode
annotate src/video/wincommon/SDL_sysmouse.c @ 1554:0ca607a5d173
Fixed bug #84
Date: Sun, 23 Oct 2005 16:39:03 +0200
From: "A. Schmid" <sahib@phreaker.net>
Subject: [SDL] no software surfaces with svgalib driver?
Hi,
I noticed that the SDL (1.2.9) svgalib driver only makes use of linear
addressable (framebuffer) video modes. On older systems (like one of
mine), linear addressable modes are often not available.
Especially for cards with VESA VBE < 2.0 the svgalib vesa driver is
unusable, since VESA only supports framebuffering for VBE 2.0 and later.
The changes necessary to add support for software surfaces seem to be
relatively small. I only had to hack src/video/svga/SDL_svgavideo.c (see
attached patch). The code worked fine for me, but it is no more than a
proof of concept and should be reviewed (probably has a memory leak when
switching modes). It also uses the vgagl library (included in the
svgalib package) and needs to be linked against it.
-Alex
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 19 Mar 2006 12:04:40 +0000 |
| parents | 4aac8563c296 |
| children | 782fd950bd46 c121d94672cb a1b03ba2fcd0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
|
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15 You should have received a copy of the GNU Lesser General Public |
|
c9b51268668f
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Sam Lantinga <slouken@libsdl.org>
parents:
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16 License along with this library; if not, write to the Free Software |
|
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
|
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Updated the source with the correct e-mail address
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20 slouken@libsdl.org |
| 0 | 21 */ |
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Use consistent identifiers for the various platforms we support.
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22 #include "SDL_config.h" |
| 0 | 23 |
|
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SDL_windows.h is no longer necessary
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24 #define WIN32_LEAN_AND_MEAN |
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bb6839704ed6
SDL_windows.h is no longer necessary
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25 #include <windows.h> |
| 0 | 26 |
| 27 #include "SDL_mouse.h" | |
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New configure-based build system. Still work in progress, but much improved
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28 #include "../../events/SDL_events_c.h" |
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New configure-based build system. Still work in progress, but much improved
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29 #include "../SDL_cursor_c.h" |
| 0 | 30 #include "SDL_sysmouse_c.h" |
| 31 #include "SDL_lowvideo.h" | |
| 32 | |
| 33 #ifdef _WIN32_WCE | |
| 34 #define USE_STATIC_CURSOR | |
| 35 #endif | |
| 36 | |
| 37 HCURSOR SDL_hcursor = NULL; /* Exported for SDL_eventloop.c */ | |
| 38 | |
| 39 /* The implementation dependent data for the window manager cursor */ | |
| 40 /* For some reason when creating a windows cursor, the ands and xors memory | |
| 41 is not copied, so we need to keep track of it and free it when we are done | |
| 42 with the cursor. If we free the memory prematurely, the app crashes. :-} | |
| 43 */ | |
| 44 struct WMcursor { | |
| 45 HCURSOR curs; | |
| 46 #ifndef USE_STATIC_CURSOR | |
| 47 Uint8 *ands; | |
| 48 Uint8 *xors; | |
| 49 #endif | |
| 50 }; | |
| 51 | |
| 52 /* Convert bits to padded bytes */ | |
| 53 #define PAD_BITS(bits) ((bits+7)/8) | |
| 54 | |
| 55 #ifdef CURSOR_DEBUG | |
| 56 static void PrintBITMAP(FILE *out, char *bits, int w, int h) | |
| 57 { | |
| 58 int i; | |
| 59 unsigned char ch; | |
| 60 | |
| 61 while ( h-- > 0 ) { | |
| 62 for ( i=0; i<w; ++i ) { | |
| 63 if ( (i%8) == 0 ) | |
| 64 ch = *bits++; | |
| 65 if ( ch&0x80 ) | |
| 66 fprintf(out, "X"); | |
| 67 else | |
| 68 fprintf(out, " "); | |
| 69 ch <<= 1; | |
| 70 } | |
| 71 fprintf(out, "\n"); | |
| 72 } | |
| 73 } | |
| 74 #endif | |
| 75 | |
| 76 #ifndef USE_STATIC_CURSOR | |
| 77 /* Local functions to convert the SDL cursor mask into Windows format */ | |
| 78 static void memnot(Uint8 *dst, Uint8 *src, int len) | |
| 79 { | |
| 80 while ( len-- > 0 ) | |
| 81 *dst++ = ~*src++; | |
| 82 } | |
| 83 static void memxor(Uint8 *dst, Uint8 *src1, Uint8 *src2, int len) | |
| 84 { | |
| 85 while ( len-- > 0 ) | |
| 86 *dst++ = (*src1++)^(*src2++); | |
| 87 } | |
| 88 #endif /* !USE_STATIC_CURSOR */ | |
| 89 | |
| 90 void WIN_FreeWMCursor(_THIS, WMcursor *cursor) | |
| 91 { | |
| 92 #ifndef USE_STATIC_CURSOR | |
|
506
f097dba83975
Fixed cursor resource leak in Windows (thanks Huib-Jan Imbens!)
Sam Lantinga <slouken@libsdl.org>
parents:
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93 if ( cursor->curs == GetCursor() ) |
|
f097dba83975
Fixed cursor resource leak in Windows (thanks Huib-Jan Imbens!)
Sam Lantinga <slouken@libsdl.org>
parents:
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94 SetCursor(NULL); |
| 0 | 95 if ( cursor->curs != NULL ) |
| 96 DestroyCursor(cursor->curs); | |
| 97 if ( cursor->ands != NULL ) | |
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98 SDL_free(cursor->ands); |
| 0 | 99 if ( cursor->xors != NULL ) |
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100 SDL_free(cursor->xors); |
| 0 | 101 #endif /* !USE_STATIC_CURSOR */ |
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parents:
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changeset
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102 SDL_free(cursor); |
| 0 | 103 } |
| 104 | |
| 105 WMcursor *WIN_CreateWMCursor(_THIS, | |
| 106 Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y) | |
| 107 { | |
| 108 #ifdef USE_STATIC_CURSOR | |
| 109 WMcursor *cursor; | |
| 110 | |
| 111 /* Allocate the cursor */ | |
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parents:
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changeset
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112 cursor = (WMcursor *)SDL_malloc(sizeof(*cursor)); |
| 0 | 113 if ( cursor ) { |
| 114 cursor->curs = LoadCursor(NULL, IDC_ARROW); | |
| 115 } | |
| 116 return(cursor); | |
| 117 #else | |
| 118 WMcursor *cursor; | |
| 119 int allowed_x; | |
| 120 int allowed_y; | |
| 121 int run, pad, i; | |
| 122 Uint8 *aptr, *xptr; | |
| 123 | |
| 124 /* Check to make sure the cursor size is okay */ | |
| 125 allowed_x = GetSystemMetrics(SM_CXCURSOR); | |
| 126 allowed_y = GetSystemMetrics(SM_CYCURSOR); | |
| 127 if ( (w > allowed_x) || (h > allowed_y) ) { | |
| 128 SDL_SetError("Only cursors of dimension (%dx%d) are allowed", | |
| 129 allowed_x, allowed_y); | |
| 130 return(NULL); | |
| 131 } | |
| 132 | |
| 133 /* Allocate the cursor */ | |
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parents:
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diff
changeset
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134 cursor = (WMcursor *)SDL_malloc(sizeof(*cursor)); |
| 0 | 135 if ( cursor == NULL ) { |
| 136 SDL_SetError("Out of memory"); | |
| 137 return(NULL); | |
| 138 } | |
| 139 cursor->curs = NULL; | |
| 140 cursor->ands = NULL; | |
| 141 cursor->xors = NULL; | |
| 142 | |
| 143 /* Pad out to the normal cursor size */ | |
| 144 run = PAD_BITS(w); | |
| 145 pad = PAD_BITS(allowed_x)-run; | |
|
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parents:
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diff
changeset
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146 aptr = cursor->ands = (Uint8 *)SDL_malloc((run+pad)*allowed_y); |
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3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
1330
diff
changeset
|
147 xptr = cursor->xors = (Uint8 *)SDL_malloc((run+pad)*allowed_y); |
| 0 | 148 if ( (aptr == NULL) || (xptr == NULL) ) { |
| 149 WIN_FreeWMCursor(NULL, cursor); | |
| 150 SDL_OutOfMemory(); | |
| 151 return(NULL); | |
| 152 } | |
| 153 for ( i=0; i<h; ++i ) { | |
| 154 memxor(xptr, data, mask, run); | |
| 155 xptr += run; | |
| 156 data += run; | |
| 157 memnot(aptr, mask, run); | |
| 158 mask += run; | |
| 159 aptr += run; | |
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parents:
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160 SDL_memset(xptr, 0, pad); |
| 0 | 161 xptr += pad; |
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parents:
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changeset
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162 SDL_memset(aptr, ~0, pad); |
| 0 | 163 aptr += pad; |
| 164 } | |
| 165 pad += run; | |
| 166 for ( ; i<allowed_y; ++i ) { | |
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parents:
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167 SDL_memset(xptr, 0, pad); |
| 0 | 168 xptr += pad; |
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parents:
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changeset
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169 SDL_memset(aptr, ~0, pad); |
| 0 | 170 aptr += pad; |
| 171 } | |
| 172 | |
| 173 /* Create the cursor */ | |
| 174 cursor->curs = CreateCursor( | |
|
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Fixed more Win64 portability issues
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175 (HINSTANCE)GetWindowLongPtr(SDL_Window, GWLP_HINSTANCE), |
| 0 | 176 hot_x, hot_y, allowed_x, allowed_y, |
| 177 cursor->ands, cursor->xors); | |
| 178 if ( cursor->curs == NULL ) { | |
| 179 WIN_FreeWMCursor(NULL, cursor); | |
| 180 SDL_SetError("Windows couldn't create the requested cursor"); | |
| 181 return(NULL); | |
| 182 } | |
| 183 return(cursor); | |
| 184 #endif /* USE_STATIC_CURSOR */ | |
| 185 } | |
| 186 | |
| 187 int WIN_ShowWMCursor(_THIS, WMcursor *cursor) | |
| 188 { | |
| 189 POINT mouse_pos; | |
| 190 | |
| 191 /* The fullscreen cursor must be done in software with DirectInput */ | |
|
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Fixed double-mouse event bug on Windows using OpenGL
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192 if ( !this->screen || DDRAW_FULLSCREEN() ) { |
| 0 | 193 return(0); |
| 194 } | |
| 195 | |
| 196 /* Set the window cursor to our cursor, if applicable */ | |
| 197 if ( cursor != NULL ) { | |
| 198 SDL_hcursor = cursor->curs; | |
| 199 } else { | |
| 200 SDL_hcursor = NULL; | |
| 201 } | |
| 202 GetCursorPos(&mouse_pos); | |
| 203 if ( PtInRect(&SDL_bounds, mouse_pos) ) { | |
| 204 SetCursor(SDL_hcursor); | |
| 205 } | |
| 206 return(1); | |
| 207 } | |
| 208 | |
| 209 void WIN_WarpWMCursor(_THIS, Uint16 x, Uint16 y) | |
| 210 { | |
|
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211 if ( DDRAW_FULLSCREEN() ) { |
| 0 | 212 SDL_PrivateMouseMotion(0, 0, x, y); |
| 213 } else if ( mouse_relative) { | |
| 214 /* RJR: March 28, 2000 | |
| 215 leave physical cursor at center of screen if | |
| 216 mouse hidden and grabbed */ | |
| 217 SDL_PrivateMouseMotion(0, 0, x, y); | |
| 218 } else { | |
|
527
5c74ac147358
Fixed mouse warp position bug with offset video modes
Sam Lantinga <slouken@libsdl.org>
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diff
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219 POINT pt; |
| 0 | 220 pt.x = x; |
| 221 pt.y = y; | |
| 222 ClientToScreen(SDL_Window, &pt); | |
| 223 SetCursorPos(pt.x, pt.y); | |
| 224 } | |
| 225 } | |
| 226 | |
| 227 /* Update the current mouse state and position */ | |
| 228 void WIN_UpdateMouse(_THIS) | |
| 229 { | |
| 230 RECT rect; | |
| 231 POINT pt; | |
| 232 | |
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233 if ( ! DDRAW_FULLSCREEN() ) { |
| 0 | 234 GetClientRect(SDL_Window, &rect); |
| 235 GetCursorPos(&pt); | |
| 236 MapWindowPoints(NULL, SDL_Window, &pt, 1); | |
| 237 if (PtInRect(&rect, pt) && (WindowFromPoint(pt) == SDL_Window)){ | |
| 238 SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS); | |
| 239 SDL_PrivateMouseMotion(0,0, (Sint16)pt.x, (Sint16)pt.y); | |
| 240 } else { | |
| 241 SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS); | |
| 242 } | |
| 243 } | |
| 244 } | |
| 245 | |
| 246 /* Check to see if we need to enter or leave mouse relative mode */ | |
| 247 void WIN_CheckMouseMode(_THIS) | |
| 248 { | |
|
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249 #ifndef _WIN32_WCE |
| 0 | 250 /* If the mouse is hidden and input is grabbed, we use relative mode */ |
| 251 if ( !(SDL_cursorstate & CURSOR_VISIBLE) && | |
| 252 (this->input_grab != SDL_GRAB_OFF) ) { | |
| 253 mouse_relative = 1; | |
| 254 } else { | |
| 255 mouse_relative = 0; | |
| 256 } | |
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Updated Windows CE/PocketPC support...adds GAPI driver, landscape mode,
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257 #else |
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Updated Windows CE/PocketPC support...adds GAPI driver, landscape mode,
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parents:
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258 mouse_relative = 0; |
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Updated Windows CE/PocketPC support...adds GAPI driver, landscape mode,
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259 #endif |
| 0 | 260 } |