429 lines
12 KiB
C
429 lines
12 KiB
C
/*
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* Copyright © 2001 Keith Packard
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* Copyright 2011 VMWare, Inc. All Rights Reserved.
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* May partly be based on code that is Copyright © The XFree86 Project Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* Author: Eric Anholt <eric@anholt.net>
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* Author: Michel Dänzer <michel@tungstengraphics.com>
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* Author: Thomas Hellstrom <thellstrom@vmware.com>
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*/
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#include "saa.h"
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#include "saa_priv.h"
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#ifdef RENDER
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#include <mipict.h>
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/**
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* Same as miCreateAlphaPicture, except it uses
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* saa_check_poly_fill_rect instead
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*/
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static PicturePtr
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saa_create_alpha_picture(ScreenPtr pScreen,
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PicturePtr pDst,
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PictFormatPtr pPictFormat, CARD16 width, CARD16 height)
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{
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PixmapPtr pPixmap;
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PicturePtr pPicture;
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GCPtr pGC;
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int error;
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xRectangle rect;
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if (width > 32767 || height > 32767)
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return 0;
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if (!pPictFormat) {
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if (pDst->polyEdge == PolyEdgeSharp)
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pPictFormat = PictureMatchFormat(pScreen, 1, PICT_a1);
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else
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pPictFormat = PictureMatchFormat(pScreen, 8, PICT_a8);
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if (!pPictFormat)
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return 0;
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}
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pPixmap = (*pScreen->CreatePixmap) (pScreen, width, height,
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pPictFormat->depth, 0);
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if (!pPixmap)
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return 0;
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pGC = GetScratchGC(pPixmap->drawable.depth, pScreen);
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if (!pGC) {
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(*pScreen->DestroyPixmap) (pPixmap);
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return 0;
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}
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ValidateGC(&pPixmap->drawable, pGC);
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rect.x = 0;
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rect.y = 0;
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rect.width = width;
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rect.height = height;
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saa_check_poly_fill_rect(&pPixmap->drawable, pGC, 1, &rect);
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FreeScratchGC(pGC);
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pPicture = CreatePicture(0, &pPixmap->drawable, pPictFormat,
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0, 0, serverClient, &error);
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(*pScreen->DestroyPixmap) (pPixmap);
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return pPicture;
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}
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/**
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* saa_trapezoids is essentially a copy of miTrapezoids that uses
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* saa_create_alpha_picture instead of miCreateAlphaPicture.
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*
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* The problem with miCreateAlphaPicture is that it calls PolyFillRect
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* to initialize the contents after creating the pixmap, which
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* causes the pixmap to be moved in for acceleration. The subsequent
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* call to RasterizeTrapezoid won't be accelerated however, which
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* forces the pixmap to be moved out again.
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*
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*/
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static void
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saa_trapezoids(CARD8 op, PicturePtr pSrc, PicturePtr pDst,
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PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc,
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int ntrap, xTrapezoid * traps)
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{
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ScreenPtr pScreen = pDst->pDrawable->pScreen;
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PictureScreenPtr ps = GetPictureScreen(pScreen);
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BoxRec bounds;
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if (maskFormat) {
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PicturePtr pPicture;
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INT16 xDst, yDst;
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INT16 xRel, yRel;
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saa_access_t access;
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miTrapezoidBounds(ntrap, traps, &bounds);
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if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2)
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return;
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xDst = traps[0].left.p1.x >> 16;
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yDst = traps[0].left.p1.y >> 16;
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pPicture = saa_create_alpha_picture(pScreen, pDst, maskFormat,
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bounds.x2 - bounds.x1,
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bounds.y2 - bounds.y1);
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if (!pPicture)
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return;
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if (saa_pad_write(pPicture->pDrawable, NULL, FALSE, &access)) {
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for (; ntrap; ntrap--, traps++)
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(*ps->RasterizeTrapezoid) (pPicture, traps,
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-bounds.x1, -bounds.y1);
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saa_fad_write(pPicture->pDrawable, access);
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}
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xRel = bounds.x1 + xSrc - xDst;
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yRel = bounds.y1 + ySrc - yDst;
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CompositePicture(op, pSrc, pPicture, pDst,
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xRel, yRel, 0, 0, bounds.x1, bounds.y1,
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bounds.x2 - bounds.x1, bounds.y2 - bounds.y1);
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FreePicture(pPicture, 0);
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} else {
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if (pDst->polyEdge == PolyEdgeSharp)
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maskFormat = PictureMatchFormat(pScreen, 1, PICT_a1);
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else
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maskFormat = PictureMatchFormat(pScreen, 8, PICT_a8);
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for (; ntrap; ntrap--, traps++)
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saa_trapezoids(op, pSrc, pDst, maskFormat, xSrc, ySrc, 1, traps);
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}
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}
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/**
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* saa_triangles is essentially a copy of miTriangles that uses
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* saa_create_alpha_picture instead of miCreateAlphaPicture.
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*
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* The problem with miCreateAlphaPicture is that it calls PolyFillRect
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* to initialize the contents after creating the pixmap, which
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* causes the pixmap to be moved in for acceleration. The subsequent
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* call to AddTriangles won't be accelerated however, which forces the pixmap
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* to be moved out again.
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*/
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static void
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saa_triangles(CARD8 op, PicturePtr pSrc, PicturePtr pDst,
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PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc,
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int ntri, xTriangle * tris)
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{
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ScreenPtr pScreen = pDst->pDrawable->pScreen;
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PictureScreenPtr ps = GetPictureScreen(pScreen);
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BoxRec bounds;
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if (maskFormat) {
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PicturePtr pPicture;
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INT16 xDst, yDst;
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INT16 xRel, yRel;
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saa_access_t access;
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miTriangleBounds(ntri, tris, &bounds);
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if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2)
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return;
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xDst = tris[0].p1.x >> 16;
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yDst = tris[0].p1.y >> 16;
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pPicture = saa_create_alpha_picture(pScreen, pDst, maskFormat,
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bounds.x2 - bounds.x1,
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bounds.y2 - bounds.y1);
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if (!pPicture)
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return;
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if (saa_pad_write(pPicture->pDrawable, NULL, FALSE, &access)) {
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(*ps->AddTriangles) (pPicture, -bounds.x1, -bounds.y1, ntri, tris);
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saa_fad_write(pPicture->pDrawable, access);
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}
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xRel = bounds.x1 + xSrc - xDst;
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yRel = bounds.y1 + ySrc - yDst;
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CompositePicture(op, pSrc, pPicture, pDst,
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xRel, yRel, 0, 0, bounds.x1, bounds.y1,
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bounds.x2 - bounds.x1, bounds.y2 - bounds.y1);
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FreePicture(pPicture, 0);
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} else {
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if (pDst->polyEdge == PolyEdgeSharp)
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maskFormat = PictureMatchFormat(pScreen, 1, PICT_a1);
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else
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maskFormat = PictureMatchFormat(pScreen, 8, PICT_a8);
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for (; ntri; ntri--, tris++)
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saa_triangles(op, pSrc, pDst, maskFormat, xSrc, ySrc, 1, tris);
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}
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}
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static Bool
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saa_driver_composite(CARD8 op,
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PicturePtr pSrc,
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PicturePtr pMask,
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PicturePtr pDst,
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INT16 xSrc,
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INT16 ySrc,
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INT16 xMask,
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INT16 yMask,
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INT16 xDst,
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INT16 yDst,
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CARD16 width,
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CARD16 height,
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RegionPtr src_reg,
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RegionPtr mask_reg,
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RegionPtr dst_reg)
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{
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struct saa_screen_priv *sscreen = saa_screen(pDst->pDrawable->pScreen);
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BoxPtr pbox;
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int nbox;
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int src_off_x, src_off_y, mask_off_x, mask_off_y, dst_off_x, dst_off_y;
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PixmapPtr src_pix = NULL, mask_pix = NULL, dst_pix;
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struct saa_driver *driver = sscreen->driver;
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if (!driver->composite_prepare)
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return FALSE;
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dst_pix = saa_get_pixmap(pDst->pDrawable, &dst_off_x, &dst_off_y);
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if (saa_pixmap(dst_pix)->auth_loc != saa_loc_driver)
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return FALSE;
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if (pMask && pMask->pDrawable) {
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mask_pix = saa_get_pixmap(pMask->pDrawable, &mask_off_x, &mask_off_y);
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if (saa_pixmap(mask_pix)->auth_loc != saa_loc_driver)
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return FALSE;
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}
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if (pSrc->pDrawable) {
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src_pix = saa_get_pixmap(pSrc->pDrawable, &src_off_x, &src_off_y);
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if (saa_pixmap(src_pix)->auth_loc != saa_loc_driver)
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return FALSE;
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}
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if (!driver->composite_prepare(driver, op, pSrc, pMask, pDst,
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src_pix, mask_pix, dst_pix,
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src_reg, mask_reg, dst_reg))
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return FALSE;
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nbox = REGION_NUM_RECTS(dst_reg);
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pbox = REGION_RECTS(dst_reg);
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xDst += pDst->pDrawable->x + dst_off_x;
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yDst += pDst->pDrawable->y + dst_off_y;
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if (src_pix) {
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xSrc += pSrc->pDrawable->x + src_off_x - xDst;
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ySrc += pSrc->pDrawable->y + src_off_y - yDst;
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}
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if (mask_pix) {
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xMask += pMask->pDrawable->x + mask_off_x - xDst;
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yMask += pMask->pDrawable->y + mask_off_y - yDst;
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}
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while (nbox--) {
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driver->composite(driver,
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pbox->x1 + xSrc,
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pbox->y1 + ySrc,
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pbox->x1 + xMask,
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pbox->y1 + yMask,
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pbox->x1,
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pbox->y1,
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pbox->x2 - pbox->x1,
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pbox->y2 - pbox->y1);
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pbox++;
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}
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driver->composite_done(driver);
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saa_pixmap_dirty(dst_pix, TRUE, dst_reg);
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return TRUE;
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}
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/*
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* Try to turn a composite operation into an accelerated copy.
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* We can do that in some special cases for PictOpSrc and PictOpOver.
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*/
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static Bool
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saa_copy_composite(CARD8 op,
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PicturePtr pSrc,
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PicturePtr pMask,
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PicturePtr pDst,
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INT16 xSrc,
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INT16 ySrc,
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INT16 xMask,
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INT16 yMask,
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INT16 xDst, INT16 yDst, CARD16 width, CARD16 height,
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RegionPtr dst_region)
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{
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if (!pSrc->pDrawable || pSrc->transform ||
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pSrc->repeat || xSrc < 0 || ySrc < 0 ||
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xSrc + width > pSrc->pDrawable->width ||
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ySrc + height > pSrc->pDrawable->height)
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return FALSE;
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if (op == PictOpSrc ||
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(op == PictOpOver && PICT_FORMAT_A(pSrc->format) == 0 &&
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pMask == NULL)) {
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int xoff, yoff;
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PixmapPtr dst_pix = saa_get_pixmap(pDst->pDrawable, &xoff, &yoff);
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struct saa_pixmap *dst_spix = saa_pixmap(dst_pix);
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struct saa_pixmap *src_spix =
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saa_pixmap(saa_get_drawable_pixmap(pSrc->pDrawable));
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int ret;
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if (src_spix->auth_loc != saa_loc_driver ||
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dst_spix->auth_loc != saa_loc_driver)
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return FALSE;
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src_spix->src_format = pSrc->format;
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dst_spix->dst_format = pDst->format;
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xDst += pDst->pDrawable->x;
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yDst += pDst->pDrawable->y;
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xSrc += pSrc->pDrawable->x;
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ySrc += pSrc->pDrawable->y;
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/*
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* Dst region is in backing pixmap space. We need to
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* translate it.
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*/
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REGION_TRANSLATE(pScreen, dst_region, -xoff, -yoff);
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ret = saa_hw_copy_nton(pSrc->pDrawable, pDst->pDrawable, NULL,
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REGION_RECTS(dst_region),
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REGION_NUM_RECTS(dst_region),
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xSrc - xDst, ySrc - yDst, FALSE, FALSE);
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REGION_TRANSLATE(pScreen, dst_region, xoff, yoff);
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src_spix->src_format = 0;
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dst_spix->dst_format = 0;
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if (ret)
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return TRUE;
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}
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return FALSE;
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}
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static void
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saa_composite(CARD8 op,
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PicturePtr pSrc,
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PicturePtr pMask,
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PicturePtr pDst,
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INT16 xSrc,
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INT16 ySrc,
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INT16 xMask,
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INT16 yMask, INT16 xDst, INT16 yDst, CARD16 width, CARD16 height)
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{
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ScreenPtr pScreen = pDst->pDrawable->pScreen;
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RegionRec dst_region;
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RegionPtr src_region;
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RegionPtr mask_region;
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REGION_NULL(pScreen, &dst_region);
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if (!saa_compute_composite_regions(pScreen, pSrc, pMask, pDst,
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xSrc, ySrc, xMask, yMask, xDst,
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yDst, width, height,
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&dst_region, &src_region, &mask_region))
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goto out;
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if (saa_copy_composite(op, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask,
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xDst, yDst, width, height, &dst_region))
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goto out;
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if (saa_driver_composite(op, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask,
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xDst, yDst, width, height, src_region,
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mask_region, &dst_region))
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goto out;
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saa_check_composite(op, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask,
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xDst, yDst, width, height,
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src_region, mask_region, &dst_region);
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out:
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if (src_region)
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REGION_UNINIT(pScreen, src_region);
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if (mask_region && mask_region != src_region)
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REGION_UNINIT(pScreen, mask_region);
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REGION_UNINIT(pScreen, &dst_region);
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}
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void
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saa_render_setup(ScreenPtr pScreen)
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{
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PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
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struct saa_screen_priv *sscreen = saa_screen(pScreen);
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if (ps) {
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saa_wrap(sscreen, ps, Trapezoids, saa_trapezoids);
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saa_wrap(sscreen, ps, Triangles, saa_triangles);
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saa_wrap(sscreen, ps, Composite, saa_composite);
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saa_wrap(sscreen, ps, Glyphs, miGlyphs);
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saa_wrap(sscreen, ps, UnrealizeGlyph, miUnrealizeGlyph);
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}
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}
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void
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saa_render_takedown(ScreenPtr pScreen)
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{
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PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
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struct saa_screen_priv *sscreen = saa_screen(pScreen);
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if (ps) {
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saa_unwrap(sscreen, ps, Trapezoids);
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saa_unwrap(sscreen, ps, Triangles);
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saa_unwrap(sscreen, ps, Composite);
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saa_unwrap(sscreen, ps, Glyphs);
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saa_unwrap(sscreen, ps, UnrealizeGlyph);
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}
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}
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#endif
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