| 1 | /* |
| 2 | * Copyright © 2009 Maarten Maathuis |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice (including the next |
| 12 | * paragraph) shall be included in all copies or substantial portions of the |
| 13 | * Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 21 | * SOFTWARE. |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | #ifdef HAVE_DIX_CONFIG_H |
| 26 | #include <dix-config.h> |
| 27 | #endif |
| 28 | |
| 29 | #include <string.h> |
| 30 | |
| 31 | #include "exa_priv.h" |
| 32 | #include "exa.h" |
| 33 | |
| 34 | /* This file holds the driver allocated pixmaps specific implementation. */ |
| 35 | |
| 36 | static _X_INLINE void * |
| 37 | ExaGetPixmapAddress(PixmapPtr p) |
| 38 | { |
| 39 | ExaPixmapPriv(p); |
| 40 | |
| 41 | return pExaPixmap->sys_ptr; |
| 42 | } |
| 43 | |
| 44 | /** |
| 45 | * exaCreatePixmap() creates a new pixmap. |
| 46 | * |
| 47 | * Pixmaps are always marked as pinned, because exa has no control over them. |
| 48 | */ |
| 49 | PixmapPtr |
| 50 | exaCreatePixmap_driver(ScreenPtr pScreen, int w, int h, int depth, |
| 51 | unsigned usage_hint) |
| 52 | { |
| 53 | PixmapPtr pPixmap; |
| 54 | ExaPixmapPrivPtr pExaPixmap; |
| 55 | int bpp; |
| 56 | size_t paddedWidth, datasize; |
| 57 | |
| 58 | ExaScreenPriv(pScreen); |
| 59 | |
| 60 | if (w > 32767 || h > 32767) |
| 61 | return NullPixmap; |
| 62 | |
| 63 | swap(pExaScr, pScreen, CreatePixmap); |
| 64 | pPixmap = pScreen->CreatePixmap(pScreen, 0, 0, depth, usage_hint); |
| 65 | swap(pExaScr, pScreen, CreatePixmap); |
| 66 | |
| 67 | if (!pPixmap) |
| 68 | return NULL; |
| 69 | |
| 70 | pExaPixmap = ExaGetPixmapPriv(pPixmap); |
| 71 | pExaPixmap->driverPriv = NULL; |
| 72 | |
| 73 | bpp = pPixmap->drawable.bitsPerPixel; |
| 74 | |
| 75 | /* Set this before driver hooks, to allow for driver pixmaps without gpu |
| 76 | * memory to back it. These pixmaps have a valid pointer at all times. |
| 77 | */ |
| 78 | pPixmap->devPrivate.ptr = NULL; |
| 79 | |
| 80 | if (pExaScr->info->CreatePixmap2) { |
| 81 | int new_pitch = 0; |
| 82 | |
| 83 | pExaPixmap->driverPriv = |
| 84 | pExaScr->info->CreatePixmap2(pScreen, w, h, depth, usage_hint, bpp, |
| 85 | &new_pitch); |
| 86 | paddedWidth = pExaPixmap->fb_pitch = new_pitch; |
| 87 | } |
| 88 | else { |
| 89 | paddedWidth = ((w * bpp + FB_MASK) >> FB_SHIFT) * sizeof(FbBits); |
| 90 | if (paddedWidth / 4 > 32767 || h > 32767) |
| 91 | return NullPixmap; |
| 92 | |
| 93 | exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp); |
| 94 | |
| 95 | if (paddedWidth < pExaPixmap->fb_pitch) |
| 96 | paddedWidth = pExaPixmap->fb_pitch; |
| 97 | datasize = h * paddedWidth; |
| 98 | pExaPixmap->driverPriv = |
| 99 | pExaScr->info->CreatePixmap(pScreen, datasize, 0); |
| 100 | } |
| 101 | |
| 102 | if (!pExaPixmap->driverPriv) { |
| 103 | swap(pExaScr, pScreen, DestroyPixmap); |
| 104 | pScreen->DestroyPixmap(pPixmap); |
| 105 | swap(pExaScr, pScreen, DestroyPixmap); |
| 106 | return NULL; |
| 107 | } |
| 108 | |
| 109 | /* Allow ModifyPixmapHeader to set sys_ptr appropriately. */ |
| 110 | pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED; |
| 111 | pExaPixmap->fb_ptr = NULL; |
| 112 | pExaPixmap->pDamage = NULL; |
| 113 | pExaPixmap->sys_ptr = NULL; |
| 114 | |
| 115 | (*pScreen->ModifyPixmapHeader) (pPixmap, w, h, 0, 0, paddedWidth, NULL); |
| 116 | |
| 117 | pExaPixmap->area = NULL; |
| 118 | |
| 119 | exaSetAccelBlock(pExaScr, pExaPixmap, w, h, bpp); |
| 120 | |
| 121 | pExaPixmap->use_gpu_copy = exaPixmapHasGpuCopy(pPixmap); |
| 122 | |
| 123 | /* During a fallback we must prepare access. */ |
| 124 | if (pExaScr->fallback_counter) |
| 125 | exaPrepareAccess(&pPixmap->drawable, EXA_PREPARE_AUX_DEST); |
| 126 | |
| 127 | return pPixmap; |
| 128 | } |
| 129 | |
| 130 | Bool |
| 131 | exaModifyPixmapHeader_driver(PixmapPtr pPixmap, int width, int height, |
| 132 | int depth, int bitsPerPixel, int devKind, |
| 133 | pointer pPixData) |
| 134 | { |
| 135 | ScreenPtr pScreen; |
| 136 | ExaScreenPrivPtr pExaScr; |
| 137 | ExaPixmapPrivPtr pExaPixmap; |
| 138 | Bool ret; |
| 139 | |
| 140 | if (!pPixmap) |
| 141 | return FALSE; |
| 142 | |
| 143 | pScreen = pPixmap->drawable.pScreen; |
| 144 | pExaScr = ExaGetScreenPriv(pScreen); |
| 145 | pExaPixmap = ExaGetPixmapPriv(pPixmap); |
| 146 | |
| 147 | if (pExaPixmap) { |
| 148 | if (pPixData) |
| 149 | pExaPixmap->sys_ptr = pPixData; |
| 150 | |
| 151 | if (devKind > 0) |
| 152 | pExaPixmap->sys_pitch = devKind; |
| 153 | |
| 154 | if (width > 0 && height > 0 && bitsPerPixel > 0) { |
| 155 | exaSetFbPitch(pExaScr, pExaPixmap, width, height, bitsPerPixel); |
| 156 | |
| 157 | exaSetAccelBlock(pExaScr, pExaPixmap, width, height, bitsPerPixel); |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | if (pExaScr->info->ModifyPixmapHeader) { |
| 162 | ret = pExaScr->info->ModifyPixmapHeader(pPixmap, width, height, depth, |
| 163 | bitsPerPixel, devKind, |
| 164 | pPixData); |
| 165 | /* For EXA_HANDLES_PIXMAPS, we set pPixData to NULL. |
| 166 | * If pPixmap->devPrivate.ptr is non-NULL, then we've got a |
| 167 | * !has_gpu_copy pixmap. We need to store the pointer, |
| 168 | * because PrepareAccess won't be called. |
| 169 | */ |
| 170 | if (!pPixData && pPixmap->devPrivate.ptr && pPixmap->devKind) { |
| 171 | pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr; |
| 172 | pExaPixmap->sys_pitch = pPixmap->devKind; |
| 173 | } |
| 174 | if (ret == TRUE) |
| 175 | goto out; |
| 176 | } |
| 177 | |
| 178 | swap(pExaScr, pScreen, ModifyPixmapHeader); |
| 179 | ret = pScreen->ModifyPixmapHeader(pPixmap, width, height, depth, |
| 180 | bitsPerPixel, devKind, pPixData); |
| 181 | swap(pExaScr, pScreen, ModifyPixmapHeader); |
| 182 | |
| 183 | out: |
| 184 | /* Always NULL this, we don't want lingering pointers. */ |
| 185 | pPixmap->devPrivate.ptr = NULL; |
| 186 | |
| 187 | return ret; |
| 188 | } |
| 189 | |
| 190 | Bool |
| 191 | exaDestroyPixmap_driver(PixmapPtr pPixmap) |
| 192 | { |
| 193 | ScreenPtr pScreen = pPixmap->drawable.pScreen; |
| 194 | |
| 195 | ExaScreenPriv(pScreen); |
| 196 | Bool ret; |
| 197 | |
| 198 | if (pPixmap->refcnt == 1) { |
| 199 | ExaPixmapPriv(pPixmap); |
| 200 | |
| 201 | exaDestroyPixmap(pPixmap); |
| 202 | |
| 203 | if (pExaPixmap->driverPriv) |
| 204 | pExaScr->info->DestroyPixmap(pScreen, pExaPixmap->driverPriv); |
| 205 | pExaPixmap->driverPriv = NULL; |
| 206 | } |
| 207 | |
| 208 | swap(pExaScr, pScreen, DestroyPixmap); |
| 209 | ret = pScreen->DestroyPixmap(pPixmap); |
| 210 | swap(pExaScr, pScreen, DestroyPixmap); |
| 211 | |
| 212 | return ret; |
| 213 | } |
| 214 | |
| 215 | Bool |
| 216 | exaPixmapHasGpuCopy_driver(PixmapPtr pPixmap) |
| 217 | { |
| 218 | ScreenPtr pScreen = pPixmap->drawable.pScreen; |
| 219 | |
| 220 | ExaScreenPriv(pScreen); |
| 221 | pointer saved_ptr; |
| 222 | Bool ret; |
| 223 | |
| 224 | saved_ptr = pPixmap->devPrivate.ptr; |
| 225 | pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap); |
| 226 | ret = pExaScr->info->PixmapIsOffscreen(pPixmap); |
| 227 | pPixmap->devPrivate.ptr = saved_ptr; |
| 228 | |
| 229 | return ret; |
| 230 | } |