diff options
Diffstat (limited to 'src/gx_rotate.c')
| -rw-r--r-- | src/gx_rotate.c | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/src/gx_rotate.c b/src/gx_rotate.c new file mode 100644 index 0000000..b689da2 --- /dev/null +++ b/src/gx_rotate.c @@ -0,0 +1,190 @@ +/* Copyrightg (c) 2006 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + * Neither the name of the Advanced Micro Devices, Inc. nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "xf86.h" +#include "shadow.h" +#include "geode.h" + +static void * +GXWindowLinear(ScreenPtr pScreen, CARD32 row, CARD32 offset, int mode, + CARD32 * size, void *closure) +{ + ScrnInfoPtr pScrni = xf86Screens[pScreen->myNum]; + GeodeRec *pGeode = GEODEPTR(pScrni); + + *size = pGeode->displayPitch; + + return (pGeode->FBBase + pGeode->displayOffset) + + row * pGeode->displayPitch + offset; +} + +static void +GXUpdate(ScreenPtr pScreen, shadowBufPtr pBuf) +{ + ScrnInfoPtr pScrni = xf86Screens[pScreen->myNum]; + GeodeRec *pGeode = GEODEPTR(pScrni); + int rotate = pGeode->rotation; + + switch (rotate) { + case RR_Rotate_90: + + if (pScrni->bitsPerPixel == 8) + shadowUpdateRotate8_90(pScreen, pBuf); + else if (pScrni->bitsPerPixel == 16) + shadowUpdateRotate16_90(pScreen, pBuf); + else + shadowUpdateRotate32_90(pScreen, pBuf); + + break; + + case RR_Rotate_180: + + if (pScrni->bitsPerPixel == 8) + shadowUpdateRotate8_180(pScreen, pBuf); + else if (pScrni->bitsPerPixel == 16) + shadowUpdateRotate16_180(pScreen, pBuf); + else + shadowUpdateRotate32_180(pScreen, pBuf); + + break; + + case RR_Rotate_270: + if (pScrni->bitsPerPixel == 8) + shadowUpdateRotate8_270(pScreen, pBuf); + else if (pScrni->bitsPerPixel == 16) + shadowUpdateRotate16_270(pScreen, pBuf); + else + shadowUpdateRotate32_270(pScreen, pBuf); + + break; + } +} + +Bool +GXRotate(ScrnInfoPtr pScrni, DisplayModePtr mode) +{ + GeodeRec *pGeode = GEODEPTR(pScrni); + Rotation curr = pGeode->rotation; + unsigned int curdw = pScrni->displayWidth; + PixmapPtr pPixmap; + BOOL ret; + + pPixmap = pScrni->pScreen->GetScreenPixmap(pScrni->pScreen); + pGeode->rotation = GXGetRotation(pScrni->pScreen); + + /* Leave if we have nothing to do */ + + if (pGeode->rotation == curr && pGeode->curMode == mode) { + return TRUE; + } + + shadowRemove(pScrni->pScreen, NULL); + + switch (pGeode->rotation) { + case RR_Rotate_0: + ErrorF("Rotate to 0 degrees\n"); + pScrni->displayWidth = pGeode->displayWidth; + pGeode->Pitch = pGeode->displayPitch; + break; + + case RR_Rotate_90: + ErrorF("Rotate to 90 degrees\n"); + pScrni->displayWidth = pScrni->pScreen->width; + break; + + case RR_Rotate_180: + ErrorF("Rotate to 180 degrees\n"); + pScrni->displayWidth = pGeode->displayWidth; + break; + + case RR_Rotate_270: + ErrorF("Rotate to 270 degrees\n"); + pScrni->displayWidth = pScrni->pScreen->width; + break; + } + + if (pGeode->rotation != RR_Rotate_0) { + + ret = + shadowAdd(pScrni->pScreen, pPixmap, GXUpdate, GXWindowLinear, + pGeode->rotation, NULL); + + if (!ret) { + ErrorF("shadowAdd failed\n"); + goto error; + } + } + + if (pGeode->rotation == RR_Rotate_0) + pScrni->fbOffset = pGeode->displayOffset; + else + pScrni->fbOffset = pGeode->shadowOffset; + + pScrni->pScreen->ModifyPixmapHeader(pPixmap, + pScrni->pScreen->width, + pScrni->pScreen->height, + pScrni->pScreen->rootDepth, + pScrni->bitsPerPixel, + PixmapBytePad(pScrni->displayWidth, pScrni->pScreen->rootDepth), + (pointer) (pGeode->FBBase + pScrni->fbOffset)); + + /* Don't use XAA pixmap cache or offscreen pixmaps when rotated */ + + if (pGeode->AccelInfoRec) { + if (pGeode->rotation == RR_Rotate_0) { + pGeode->AccelInfoRec->Flags = LINEAR_FRAMEBUFFER | OFFSCREEN_PIXMAPS | PIXMAP_CACHE; + pGeode->AccelInfoRec->UsingPixmapCache = TRUE; + pGeode->AccelInfoRec->maxOffPixWidth = 0; + pGeode->AccelInfoRec->maxOffPixHeight = 0; + } + else { + pGeode->AccelInfoRec->Flags = LINEAR_FRAMEBUFFER; + pGeode->AccelInfoRec->UsingPixmapCache = FALSE; + pGeode->AccelInfoRec->maxOffPixWidth = 1; + pGeode->AccelInfoRec->maxOffPixHeight = 1; + } + } + + return TRUE; + +error: + /* Restore the old rotation */ + pScrni->displayWidth = curdw; + + if (curr & (RR_Rotate_0 | RR_Rotate_180)) { + pScrni->pScreen->width = pScrni->virtualX; + pScrni->pScreen->height = pScrni->virtualY; + } else { + pScrni->pScreen->width = pScrni->virtualY; + pScrni->pScreen->height = pScrni->virtualX; + } + + pGeode->rotation = curr; + return FALSE; +} |