diff options
Diffstat (limited to 'src/amd_gx_rotate.c')
| -rw-r--r-- | src/amd_gx_rotate.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/src/amd_gx_rotate.c b/src/amd_gx_rotate.c new file mode 100644 index 0000000..c9b813a --- /dev/null +++ b/src/amd_gx_rotate.c @@ -0,0 +1,155 @@ +/* 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 "amd.h" + +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 GXGetUpdateFunc(ScrnInfoPtr pScrni, int rotate, ShadowUpdateProc *update) +{ + *update = NULL; + + switch(rotate) { + case RR_Rotate_90: + + if (pScrni->bitsPerPixel == 8) + *update = shadowUpdateRotate8_90; + else if (pScrni->bitsPerPixel == 16) + *update = shadowUpdateRotate16_90; + else + *update = shadowUpdateRotate32_90; + + break; + + case RR_Rotate_180: + + if (pScrni->bitsPerPixel == 8) + *update = shadowUpdateRotate8_180; + else if (pScrni->bitsPerPixel == 16) + *update = shadowUpdateRotate16_180; + else + *update = shadowUpdateRotate32_180; + + break; + + case RR_Rotate_270: + if (pScrni->bitsPerPixel == 8) + *update = shadowUpdateRotate8_270; + else if (pScrni->bitsPerPixel == 16) + *update = shadowUpdateRotate16_270; + else + *update = shadowUpdateRotate32_270; + + break; + } +} + +Bool +GXRotate(ScrnInfoPtr pScrni, DisplayModePtr mode) +{ + GeodeRec *pGeode = GEODEPTR(pScrni); + ShadowUpdateProc update; + Rotation curr = pGeode->rotation; + unsigned int pitch, dw; + 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) { + + GXGetUpdateFunc(pScrni, pGeode->rotation, &update); + ret = shadowAdd(pScrni->pScreen, pPixmap, update, GXWindowLinear, pGeode->rotation, NULL); + + /* XXX - FIXME - bail gracefully */ + + if (!ret) + ErrorF("shadowAdd failed\n"); + } + + 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)); + + return TRUE; +} |