Mercurial > sdl-ios-xcode
annotate src/video/nanox/SDL_nximage.c @ 1192:54aa9aa32327
To: sdl@libsdl.org
From: Christian Walther <cwalther@gmx.ch>
Date: Fri, 18 Nov 2005 23:39:02 +0100
Subject: [SDL] Mouse position bugs on Mac OS X
The attached patch fixes a few bugs in SDL related to the mouse position
in windowed mode on Mac OS X, reproduced using the attached minimal test
program - at least here on 10.3.9, with SDL CVS from today. Could anyone
test whether the bugs exist and are fixed by the patch on 10.2 and 10.4?
1. When using OpenGL, the vertical mouse positions obtained through
events or SDL_GetMouseState() are off by one.
2. When using OpenGL, SDL_WarpMouse() inverts the y coordinate.
3. Clicks on the topmost pixel row of the window are not recognized.
1 and 2 do not occur in non-OpenGL mode, while 3 does. All three only
occur in windowed mode, not in fullscreen.
The cause for 1 and 3 is that in Cocoa, "the location of the mouse"
seems to be defined as "the location of the top left corner of the mouse
pointer's hot pixel" (this is not documented, it's just what I found out
here), which together with the fact that Cocoa's usual y coordinates
start at the bottom and increase upwards means that the y coordinate of
the mouse runs from 1 to h, not from 0 to h-1, in a window of height h.
If it does work on 10.2 and 10.4 (I'll try to test it as soon as I can,
but at the moment all I have at hand is 10.3.9), can this be applied to
the CVS?
-Christian
To: sdl@libsdl.org
From: Christian Walther <cwalther@gmx.ch>
Date: Mon, 28 Nov 2005 10:41:51 +0100
Subject: [SDL] Re: Mouse position bugs on Mac OS X
I wrote:
> I'll try to test it as soon as I can, but at the moment all I have at hand is 10.3.9
So, here are the results of my tests (with patched and unpatched
frameworks compiled with Xcode 1.5 (gcc 3.3) on 10.3.9):
On 10.1.5, my test program doesn't run because of "Undefined symbols:
SDL undefined reference to _CGMainDisplayID expected to be defined in
Carbon". I guess not supporting 10.1 was a deliberate decision then and
that's OK with me.
On 10.2.8, 10.3.9, and 10.4.0, the bugs exist as described in my
original post and are fixed by my patch. That is, there is no difference
between pre/post 10.3 and the patched version works correctly in all
combinations of GL/non-GL and windowed/fullscreen.
I therefore recommend the patch for inclusion.
-Christian
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Mon, 28 Nov 2005 13:58:26 +0000 |
parents | b8d311d90021 |
children | 604d73db6802 |
rev | line source |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2004 Sam Lantinga |
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4 Copyright (C) 2001 Hsieh-Fu Tsai |
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5 Copyright (C) 2002 Greg Haerr <greg@censoft.com> |
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6 |
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7 This library is free software; you can redistribute it and/or |
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8 modify it under the terms of the GNU Library General Public |
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9 License as published by the Free Software Foundation; either |
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10 version 2 of the License, or (at your option) any later version. |
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11 |
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12 This library is distributed in the hope that it will be useful, |
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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15 Library General Public License for more details. |
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16 |
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17 You should have received a copy of the GNU Library General Public |
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18 License along with this library; if not, write to the Free |
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19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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20 |
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21 Sam Lantinga |
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22 slouken@libsdl.org |
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23 |
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24 Hsieh-Fu Tsai |
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25 clare@setabox.com |
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26 */ |
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27 |
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28 #include <stdlib.h> |
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29 #include <string.h> |
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30 |
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31 #include "SDL_error.h" |
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32 |
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33 #include "SDL_nximage_c.h" |
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34 |
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35 void NX_NormalUpdate (_THIS, int numrects, SDL_Rect * rects) |
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36 { |
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37 int i, j, xinc, yinc, destinc, rowinc ; |
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38 int x, y, w, h ; |
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39 unsigned char * src = NULL, * dest = NULL ; |
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40 |
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41 Dprintf ("enter NX_NormalUpdate\n") ; |
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42 |
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43 /* These are the values for the incoming image */ |
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44 xinc = this -> screen -> format -> BytesPerPixel ; |
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45 yinc = this -> screen -> pitch ; |
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46 |
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47 for (i = 0; i < numrects; ++ i) { |
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48 x = rects [i].x, y = rects [i].y ; |
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49 w = rects [i].w, h = rects [i].h ; |
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50 src = SDL_Image + y * yinc + x * xinc ; |
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51 #ifdef ENABLE_NANOX_DIRECT_FB |
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52 if (Clientfb) { |
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53 if (currently_fullscreen) |
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54 dest = fbinfo.winpixels + (((y+OffsetY) * fbinfo.pitch) + |
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55 ((x+OffsetX) * fbinfo.bytespp)); |
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56 else |
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57 dest = fbinfo.winpixels + ((y * fbinfo.pitch) + (x * fbinfo.bytespp)); |
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58 destinc = fbinfo.pitch; |
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59 } |
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60 else |
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61 #endif |
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62 { |
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63 dest = Image_buff ; |
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64 destinc = w * xinc ; |
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65 } |
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66 rowinc = w * xinc; |
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67 |
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68 // apply GammaRamp table |
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69 if ((pixel_type == MWPF_TRUECOLOR0888 || pixel_type == MWPF_TRUECOLOR888) |
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70 && GammaRamp_R && GammaRamp_G && GammaRamp_B) { |
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71 Uint8 * ptrsrc ; |
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72 Uint8 * ptrdst ; |
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73 int k ; |
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74 |
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75 for (j = h; j > 0; -- j, src += yinc, dest += destinc) { |
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76 ptrsrc = src ; |
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77 ptrdst = dest ; |
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78 for (k = w; k > 0; -- k) { |
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79 *ptrdst++ = GammaRamp_B [*ptrsrc++] >> 8; |
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80 *ptrdst++ = GammaRamp_G [*ptrsrc++] >> 8; |
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81 *ptrdst++ = GammaRamp_R [*ptrsrc++] >> 8; |
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82 *ptrdst++ = 0; |
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83 ++ptrsrc; |
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84 } |
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85 } |
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86 } |
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87 #if 1 /* This is needed for microwindows 0.90 or older */ |
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88 else if (pixel_type == MWPF_TRUECOLOR0888 || pixel_type == MWPF_TRUECOLOR888) { |
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89 Uint8 * ptrsrc ; |
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90 Uint8 * ptrdst ; |
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91 int k ; |
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92 |
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93 for (j = h; j > 0; -- j, src += yinc, dest += destinc) { |
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94 ptrsrc = src ; |
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95 ptrdst = dest ; |
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96 for (k = w; k > 0; -- k) { |
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97 *ptrdst++ = *ptrsrc++; |
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98 *ptrdst++ = *ptrsrc++; |
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99 *ptrdst++ = *ptrsrc++; |
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100 *ptrdst++ = 0; |
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101 ++ptrsrc; |
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102 } |
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103 } |
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104 } |
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105 #endif |
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106 else |
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107 { |
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108 for (j = h; j > 0; -- j, src += yinc, dest += destinc) |
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109 memcpy (dest, src, rowinc) ; |
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110 } |
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111 if (!Clientfb) { |
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112 if (currently_fullscreen) { |
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113 GrArea (FSwindow, SDL_GC, x + OffsetX, y + OffsetY, w, h, Image_buff, |
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114 pixel_type) ; |
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115 } else { |
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116 GrArea (SDL_Window, SDL_GC, x, y, w, h, Image_buff, pixel_type) ; |
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117 } |
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118 } |
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119 } |
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120 GrFlush(); |
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121 |
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122 Dprintf ("leave NX_NormalUpdate\n") ; |
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123 } |
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124 |
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125 int NX_SetupImage (_THIS, SDL_Surface * screen) |
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126 { |
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127 int size = screen -> h * screen -> pitch ; |
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128 |
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129 Dprintf ("enter NX_SetupImage\n") ; |
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130 |
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131 screen -> pixels = (void *) malloc (size) ; |
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132 |
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133 if (!Clientfb) { |
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134 Image_buff = (unsigned char *) malloc (size) ; |
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135 if (screen -> pixels == NULL || Image_buff == NULL) { |
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136 free (screen -> pixels) ; |
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137 free (Image_buff) ; |
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138 SDL_OutOfMemory () ; |
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139 return -1 ; |
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140 } |
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141 } |
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142 |
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143 SDL_Image = (unsigned char *) screen -> pixels ; |
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144 |
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145 this -> UpdateRects = NX_NormalUpdate ; |
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146 |
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147 Dprintf ("leave NX_SetupImage\n") ; |
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148 return 0 ; |
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149 } |
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150 |
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151 void NX_DestroyImage (_THIS, SDL_Surface * screen) |
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152 { |
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153 Dprintf ("enter NX_DestroyImage\n") ; |
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154 |
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155 if (SDL_Image) free (SDL_Image) ; |
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156 if (Image_buff) free (Image_buff) ; |
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157 if (screen) screen -> pixels = NULL ; |
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158 |
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159 Dprintf ("leave NX_DestroyImage\n") ; |
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160 } |
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161 |
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162 int NX_ResizeImage (_THIS, SDL_Surface * screen, Uint32 flags) |
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163 { |
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164 int retval ; |
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165 GR_SCREEN_INFO si ; |
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166 |
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167 Dprintf ("enter NX_ResizeImage\n") ; |
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168 |
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169 NX_DestroyImage (this, screen) ; |
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170 retval = NX_SetupImage (this, screen) ; |
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171 |
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172 GrGetScreenInfo (& si) ; |
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173 OffsetX = (si.cols - screen -> w) / 2 ; |
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174 OffsetY = (si.rows - screen -> h) / 2 ; |
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175 |
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176 #ifdef ENABLE_NANOX_DIRECT_FB |
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177 if (Clientfb) { |
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178 /* Get current window position and fb pointer*/ |
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179 if (currently_fullscreen) |
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180 GrGetWindowFBInfo(FSwindow, &fbinfo); |
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181 else |
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182 GrGetWindowFBInfo(SDL_Window, &fbinfo); |
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183 } |
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184 #endif |
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185 Dprintf ("leave NX_ResizeImage\n") ; |
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186 return retval ; |
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187 } |
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188 |
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189 void NX_RefreshDisplay (_THIS) |
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190 { |
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191 Dprintf ("enter NX_RefreshDisplay\n") ; |
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192 |
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193 // Don't refresh a display that doesn't have an image (like GL) |
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194 if (! SDL_Image) { |
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195 return; |
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196 } |
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197 |
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198 #ifdef ENABLE_NANOX_DIRECT_FB |
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199 if (Clientfb) { |
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200 int j; |
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201 char *src, *dest = NULL; |
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202 int xinc, yinc, rowinc; |
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203 |
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204 GrGetWindowFBInfo(SDL_Window, &fbinfo); |
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205 |
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206 xinc = this -> screen -> format -> BytesPerPixel ; |
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207 yinc = this -> screen -> pitch ; |
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208 |
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209 src = SDL_Image; |
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210 if (currently_fullscreen) |
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211 dest = fbinfo.winpixels + ((OffsetY * fbinfo.pitch) + |
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212 (OffsetX * fbinfo.bytespp)); |
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213 else |
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214 dest = fbinfo.winpixels; |
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215 rowinc = xinc * this -> screen -> w; |
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216 |
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217 for (j = this -> screen -> h; j > 0; -- j, src += yinc, dest += fbinfo.pitch) |
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218 memcpy (dest, src, rowinc) ; |
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219 } |
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220 else |
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221 #endif |
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222 { |
471
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223 if (currently_fullscreen) { |
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224 GrArea (FSwindow, SDL_GC, OffsetX, OffsetY, this -> screen -> w, |
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225 this -> screen -> h, SDL_Image, pixel_type) ; |
699
d3b2e93629eb
Fixed some bugs in the Nano-X video driver
Sam Lantinga <slouken@libsdl.org>
parents:
698
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226 } else { |
471
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227 GrArea (SDL_Window, SDL_GC, 0, 0, this -> screen -> w, |
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228 this -> screen -> h, SDL_Image, pixel_type) ; |
699
d3b2e93629eb
Fixed some bugs in the Nano-X video driver
Sam Lantinga <slouken@libsdl.org>
parents:
698
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229 } |
30
57bf11a5efd7
Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
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230 } |
471
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231 GrFlush(); |
30
57bf11a5efd7
Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
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232 |
57bf11a5efd7
Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
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233 Dprintf ("leave NX_RefreshDisplay\n") ; |
57bf11a5efd7
Added initial support for Nano-X (thanks Hsieh-Fu!)
Sam Lantinga <slouken@lokigames.com>
parents:
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234 } |