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annotate src/video/gem/SDL_gemvideo.h @ 2185:2032348afed1

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This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is available and to keep people form having to install yet another library I have added the essential parts of Xmu in src/video/extensions/XmuStdCmap and an include file in src/video/extensions. The support makes use of standard X11 mechanisms to create color maps and make sure that an application uses the same color map for each window/visual combination. This should make it possible for gamma support to be implemented based on a single color map per application. Hurm... it looks like "make indent" modified a few extra files. Those are getting committed too.
author Bob Pendleton <bob@pendleton.com>
date Thu, 12 Jul 2007 20:00:50 +0000
parents c121d94672cb
children f54670a477bb
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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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
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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.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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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
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #ifndef _SDL_gemvideo_h
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25 #define _SDL_gemvideo_h
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26
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27 #include "SDL_mutex.h"
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28 #include "../SDL_sysvideo.h"
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30 /* Hidden "this" pointer for the video functions */
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31 #define _THIS SDL_VideoDevice *this
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32
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33 /* Functions prototypes */
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34 void GEM_wind_redraw(_THIS, int winhandle, short *inside);
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35
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36 /* Private display data */
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37
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38 #define B2S_C2P_1TO2 (1<<0) /* C2P convert buffer 1 to buffer 2 */
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39 #define B2S_C2P_1TOS (1<<1) /* C2P convert buffer 1 to screen */
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40 #define B2S_VROCPYFM_1TOS (1<<2) /* vro_cpyfm() buffer 1 to screen */
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41 #define B2S_VROCPYFM_2TOS (1<<3) /* vro_cpyfm() buffer 2 to screen */
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42
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43 #define SDL_NUMMODES 1 /* Fullscreen */
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44
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45 struct SDL_PrivateVideoData
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46 {
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47 Uint16 buf2scr_ops; /* Operations to get buffer to screen */
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48 void *buffer1; /* Our shadow buffers */
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49 void *buffer2;
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50
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51 /* VDI infos */
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52 short vdi_handle; /* VDI handle */
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53 short full_w, full_h; /* Fullscreen size */
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54 short bpp; /* Colour depth */
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55 short pixelsize; /* Bytes per pixel */
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56 short old_numcolors; /* Number of colors in saved palette */
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57 Uint16 pitch; /* Line length */
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58 Uint16 format; /* Screen format */
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59 void *screen; /* Screen address */
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60 Uint32 red, green, blue, alpha; /* Screen components */
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61 Uint32 screensize;
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62 short blit_coords[8]; /* Coordinates for bitblt */
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63 MFDB src_mfdb, dst_mfdb; /* VDI MFDB for bitblt */
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64 Uint16 old_palette[256][3]; /* Saved current palette */
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65 Uint16 cur_palette[256][3]; /* SDL application palette */
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66 /* Function to set/restore palette */
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67 void (*setpalette) (_THIS, Uint16 newpal[256][3]);
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69 /* GEM infos */
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70 short desk_x, desk_y; /* Desktop properties */
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71 short desk_w, desk_h;
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72 short win_handle; /* Our window handle */
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73 int window_type; /* Window type */
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74 const char *title_name; /* Window title */
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75 const char *icon_name; /* Icon title */
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76 short version; /* AES version */
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77 short wfeatures; /* AES window features */
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78 SDL_bool refresh_name; /* Change window title ? */
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79 SDL_bool window_fulled; /* Window maximized ? */
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80 SDL_bool mouse_relative; /* Report relative mouse movement */
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81 SDL_bool locked; /* AES locked for fullscreen ? */
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82 SDL_bool lock_redraw; /* Prevent redraw till buffers are setup */
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83 short message[8]; /* To self-send an AES message */
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84 void *menubar; /* Menu bar save buffer when going fullscreen */
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85 SDL_bool use_dev_mouse; /* Use /dev/mouse ? */
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86
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87 SDL_bool fullscreen; /* Fullscreen or windowed mode ? */
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88 SDL_Rect *SDL_modelist[SDL_NUMMODES + 1]; /* Mode list */
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89 SDL_Surface *icon; /* The icon */
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90 };
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91
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92 /* Hidden structure -> variables names */
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93 #define VDI_handle (this->hidden->vdi_handle)
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94 #define VDI_w (this->hidden->full_w)
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95 #define VDI_h (this->hidden->full_h)
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96 #define VDI_bpp (this->hidden->bpp)
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97 #define VDI_pixelsize (this->hidden->pixelsize)
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98 #define VDI_oldnumcolors (this->hidden->old_numcolors)
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99 #define VDI_oldpalette (this->hidden->old_palette)
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100 #define VDI_curpalette (this->hidden->cur_palette)
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101 #define VDI_setpalette (this->hidden->setpalette)
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102 #define VDI_pitch (this->hidden->pitch)
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103 #define VDI_format (this->hidden->format)
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104 #define VDI_screen (this->hidden->screen)
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105 #define VDI_redmask (this->hidden->red)
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106 #define VDI_greenmask (this->hidden->green)
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107 #define VDI_bluemask (this->hidden->blue)
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108 #define VDI_alphamask (this->hidden->alpha)
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109 #define VDI_screensize (this->hidden->screensize)
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110 #define VDI_src_mfdb (this->hidden->src_mfdb)
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111 #define VDI_dst_mfdb (this->hidden->dst_mfdb)
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112 #define VDI_blit_coords (this->hidden->blit_coords)
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113
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114 #define GEM_desk_x (this->hidden->desk_x)
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115 #define GEM_desk_y (this->hidden->desk_y)
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116 #define GEM_desk_w (this->hidden->desk_w)
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117 #define GEM_desk_h (this->hidden->desk_h)
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118 #define GEM_handle (this->hidden->win_handle)
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119 #define GEM_win_type (this->hidden->window_type)
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120 #define GEM_title_name (this->hidden->title_name)
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121 #define GEM_icon_name (this->hidden->icon_name)
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122 #define GEM_refresh_name (this->hidden->refresh_name)
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123 #define GEM_version (this->hidden->version)
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124 #define GEM_wfeatures (this->hidden->wfeatures)
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125 #define GEM_win_fulled (this->hidden->window_fulled)
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126 #define GEM_mouse_relative (this->hidden->mouse_relative)
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127 #define GEM_locked (this->hidden->locked)
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128 #define GEM_lock_redraw (this->hidden->lock_redraw)
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129 #define GEM_message (this->hidden->message)
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130 #define SDL_modelist (this->hidden->SDL_modelist)
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131 #define GEM_icon (this->hidden->icon)
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132 #define GEM_fullscreen (this->hidden->fullscreen)
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133 #define GEM_menubar (this->hidden->menubar)
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134 #define GEM_usedevmouse (this->hidden->use_dev_mouse)
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135
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136 #define GEM_buffer1 (this->hidden->buffer1)
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137 #define GEM_buffer2 (this->hidden->buffer2)
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138 #define GEM_bufops (this->hidden->buf2scr_ops)
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139
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140 #define VDI_FBMASK(amask, rmask, gmask, bmask) \
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141 VDI_alphamask = (amask); \
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142 VDI_redmask = (rmask); \
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143 VDI_greenmask = (gmask); \
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144 VDI_bluemask = (bmask);
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145
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146 /*
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147 Possible buffer to screen operations:
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148
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149 TC: 8 (chunky),15,16,24,32 bpp
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150 8I: 8 bpp planes
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151 FB: screen framebuffer address available
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152 FS: fullscreen
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153
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154 TC, FB, FS:
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155 - draw to screen
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156 8I, FB, FS:
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157 - draw to buffer 1
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158 - C2P from buffer 1 to screen
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159
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160 TC, !FB, FS:
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161 - draw to buffer 1
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162 - vro_cpyfm() from buffer 1 to screen
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163 8I, !FB, FS:
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164 - draw to buffer 1
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165 - C2P from buffer 1 to buffer 2
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166 - vro_cpyfm() from buffer 2 to screen
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167
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168 TC, FB, !FS:
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169 - draw to buffer 1
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170 - vro_cpyfm() from buffer 1 to screen
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171 8I, FB, !FS:
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172 - draw to buffer 1
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173 - C2P from buffer 1 to buffer 2
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174 - vro_cpyfm() from buffer 2 to screen
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175
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176 TC, !FB, !FS:
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177 - draw to buffer 1
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178 - vro_cpyfm() from buffer 1 to screen
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179 8I, !FB, !FS:
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180 - draw to buffer 1
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181 - C2P from buffer 1 to buffer 2
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182 - vro_cpyfm() from buffer 2 to screen
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183 */
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184
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185 #endif /* _SDL_gemvideo_h */
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186 /* vi: set ts=4 sw=4 expandtab: */