| 1 | /* |
| 2 | * Copyright © 2006 Keith Packard |
| 3 | * |
| 4 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 5 | * documentation for any purpose is hereby granted without fee, provided that |
| 6 | * the above copyright notice appear in all copies and that both that copyright |
| 7 | * notice and this permission notice appear in supporting documentation, and |
| 8 | * that the name of the copyright holders not be used in advertising or |
| 9 | * publicity pertaining to distribution of the software without specific, |
| 10 | * written prior permission. The copyright holders make no representations |
| 11 | * about the suitability of this software for any purpose. It is provided "as |
| 12 | * is" without express or implied warranty. |
| 13 | * |
| 14 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| 15 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| 16 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| 17 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| 18 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 19 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| 20 | * OF THIS SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #ifdef HAVE_XORG_CONFIG_H |
| 24 | #include <xorg-config.h> |
| 25 | #else |
| 26 | #ifdef HAVE_CONFIG_H |
| 27 | #include <config.h> |
| 28 | #endif |
| 29 | #endif |
| 30 | |
| 31 | #include "xf86.h" |
| 32 | #include "xf86DDC.h" |
| 33 | #include "xf86_OSproc.h" |
| 34 | #include "dgaproc.h" |
| 35 | #include "xf86Crtc.h" |
| 36 | #include "xf86Modes.h" |
| 37 | #include "gcstruct.h" |
| 38 | #include "scrnintstr.h" |
| 39 | #include "windowstr.h" |
| 40 | |
| 41 | static Bool |
| 42 | xf86_dga_get_modes(ScreenPtr pScreen) |
| 43 | { |
| 44 | ScrnInfoPtr scrn = xf86ScreenToScrn(pScreen); |
| 45 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 46 | DGAModePtr modes, mode; |
| 47 | DisplayModePtr display_mode; |
| 48 | int bpp = scrn->bitsPerPixel >> 3; |
| 49 | int num; |
| 50 | |
| 51 | num = 0; |
| 52 | display_mode = scrn->modes; |
| 53 | while (display_mode) { |
| 54 | num++; |
| 55 | display_mode = display_mode->next; |
| 56 | if (display_mode == scrn->modes) |
| 57 | break; |
| 58 | } |
| 59 | |
| 60 | if (!num) |
| 61 | return FALSE; |
| 62 | |
| 63 | modes = malloc(num * sizeof(DGAModeRec)); |
| 64 | if (!modes) |
| 65 | return FALSE; |
| 66 | |
| 67 | num = 0; |
| 68 | display_mode = scrn->modes; |
| 69 | while (display_mode) { |
| 70 | mode = modes + num++; |
| 71 | |
| 72 | mode->mode = display_mode; |
| 73 | mode->flags = DGA_CONCURRENT_ACCESS; |
| 74 | if (display_mode->Flags & V_DBLSCAN) |
| 75 | mode->flags |= DGA_DOUBLESCAN; |
| 76 | if (display_mode->Flags & V_INTERLACE) |
| 77 | mode->flags |= DGA_INTERLACED; |
| 78 | mode->byteOrder = scrn->imageByteOrder; |
| 79 | mode->depth = scrn->depth; |
| 80 | mode->bitsPerPixel = scrn->bitsPerPixel; |
| 81 | mode->red_mask = scrn->mask.red; |
| 82 | mode->green_mask = scrn->mask.green; |
| 83 | mode->blue_mask = scrn->mask.blue; |
| 84 | mode->visualClass = (bpp == 1) ? PseudoColor : TrueColor; |
| 85 | mode->viewportWidth = display_mode->HDisplay; |
| 86 | mode->viewportHeight = display_mode->VDisplay; |
| 87 | mode->xViewportStep = (bpp == 3) ? 2 : 1; |
| 88 | mode->yViewportStep = 1; |
| 89 | mode->viewportFlags = DGA_FLIP_RETRACE; |
| 90 | mode->offset = 0; |
| 91 | mode->address = 0; |
| 92 | mode->imageWidth = mode->viewportWidth; |
| 93 | mode->imageHeight = mode->viewportHeight; |
| 94 | mode->bytesPerScanline = (mode->imageWidth * scrn->bitsPerPixel) >> 3; |
| 95 | mode->pixmapWidth = mode->imageWidth; |
| 96 | mode->pixmapHeight = mode->imageHeight; |
| 97 | mode->maxViewportX = 0; |
| 98 | mode->maxViewportY = 0; |
| 99 | |
| 100 | display_mode = display_mode->next; |
| 101 | if (display_mode == scrn->modes) |
| 102 | break; |
| 103 | } |
| 104 | free(xf86_config->dga_modes); |
| 105 | xf86_config->dga_nmode = num; |
| 106 | xf86_config->dga_modes = modes; |
| 107 | return TRUE; |
| 108 | } |
| 109 | |
| 110 | static Bool |
| 111 | xf86_dga_set_mode(ScrnInfoPtr scrn, DGAModePtr display_mode) |
| 112 | { |
| 113 | ScreenPtr pScreen = scrn->pScreen; |
| 114 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 115 | |
| 116 | if (!display_mode) { |
| 117 | if (xf86_config->dga_save_mode) { |
| 118 | xf86SwitchMode(pScreen, xf86_config->dga_save_mode); |
| 119 | xf86_config->dga_save_mode = NULL; |
| 120 | } |
| 121 | } |
| 122 | else { |
| 123 | if (!xf86_config->dga_save_mode) { |
| 124 | xf86_config->dga_save_mode = scrn->currentMode; |
| 125 | xf86SwitchMode(pScreen, display_mode->mode); |
| 126 | } |
| 127 | } |
| 128 | return TRUE; |
| 129 | } |
| 130 | |
| 131 | static int |
| 132 | xf86_dga_get_viewport(ScrnInfoPtr scrn) |
| 133 | { |
| 134 | return 0; |
| 135 | } |
| 136 | |
| 137 | static void |
| 138 | xf86_dga_set_viewport(ScrnInfoPtr scrn, int x, int y, int flags) |
| 139 | { |
| 140 | scrn->AdjustFrame(scrn, x, y); |
| 141 | } |
| 142 | |
| 143 | static Bool |
| 144 | xf86_dga_open_framebuffer(ScrnInfoPtr scrn, |
| 145 | char **name, |
| 146 | unsigned char **mem, int *size, int *offset, |
| 147 | int *flags) |
| 148 | { |
| 149 | return FALSE; |
| 150 | } |
| 151 | |
| 152 | static void |
| 153 | xf86_dga_close_framebuffer(ScrnInfoPtr scrn) |
| 154 | { |
| 155 | } |
| 156 | |
| 157 | static DGAFunctionRec xf86_dga_funcs = { |
| 158 | xf86_dga_open_framebuffer, |
| 159 | xf86_dga_close_framebuffer, |
| 160 | xf86_dga_set_mode, |
| 161 | xf86_dga_set_viewport, |
| 162 | xf86_dga_get_viewport, |
| 163 | NULL, |
| 164 | NULL, |
| 165 | NULL, |
| 166 | NULL |
| 167 | }; |
| 168 | |
| 169 | Bool |
| 170 | xf86DiDGAReInit(ScreenPtr pScreen) |
| 171 | { |
| 172 | return TRUE; |
| 173 | } |
| 174 | |
| 175 | Bool |
| 176 | _xf86_di_dga_reinit_internal(ScreenPtr pScreen) |
| 177 | { |
| 178 | ScrnInfoPtr scrn = xf86ScreenToScrn(pScreen); |
| 179 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 180 | |
| 181 | if (!DGAScreenAvailable(pScreen)) |
| 182 | return TRUE; |
| 183 | |
| 184 | if (!xf86_dga_get_modes(pScreen)) |
| 185 | return FALSE; |
| 186 | |
| 187 | return DGAReInitModes(pScreen, xf86_config->dga_modes, |
| 188 | xf86_config->dga_nmode); |
| 189 | } |
| 190 | |
| 191 | Bool |
| 192 | xf86DiDGAInit(ScreenPtr pScreen, unsigned long dga_address) |
| 193 | { |
| 194 | return TRUE; |
| 195 | } |
| 196 | |
| 197 | Bool |
| 198 | _xf86_di_dga_init_internal(ScreenPtr pScreen) |
| 199 | { |
| 200 | ScrnInfoPtr scrn = xf86ScreenToScrn(pScreen); |
| 201 | xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn); |
| 202 | |
| 203 | xf86_config->dga_flags = 0; |
| 204 | xf86_config->dga_address = 0; |
| 205 | xf86_config->dga_width = 0; |
| 206 | xf86_config->dga_height = 0; |
| 207 | xf86_config->dga_stride = 0; |
| 208 | |
| 209 | if (!xf86_dga_get_modes(pScreen)) |
| 210 | return FALSE; |
| 211 | |
| 212 | return DGAInit(pScreen, &xf86_dga_funcs, xf86_config->dga_modes, |
| 213 | xf86_config->dga_nmode); |
| 214 | } |