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Diffstat (limited to 'src/glamor_trapezoid.c')
| -rw-r--r-- | src/glamor_trapezoid.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/src/glamor_trapezoid.c b/src/glamor_trapezoid.c new file mode 100644 index 0000000..08ee2d6 --- /dev/null +++ b/src/glamor_trapezoid.c @@ -0,0 +1,182 @@ +/* + * Copyright © 2009 Intel Corporation + * + * 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 (including the next + * paragraph) 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. + * + * Authors: + * Junyan He <junyan.he@linux.intel.com> + * + */ + +/** @file glamor_trapezoid.c + * + * Trapezoid acceleration implementation + */ + +#include "glamor_priv.h" + +#ifdef RENDER +#include "mipict.h" +#include "fbpict.h" + +/** + * Creates an appropriate picture to upload our alpha mask into (which + * we calculated in system memory) + */ +static PicturePtr +glamor_create_mask_picture(ScreenPtr screen, + PicturePtr dst, + PictFormatPtr pict_format, + CARD16 width, CARD16 height) +{ + PixmapPtr pixmap; + PicturePtr picture; + int error; + + if (!pict_format) { + if (dst->polyEdge == PolyEdgeSharp) + pict_format = + PictureMatchFormat(screen, 1, PICT_a1); + else + pict_format = + PictureMatchFormat(screen, 8, PICT_a8); + if (!pict_format) + return 0; + } + + pixmap = glamor_create_pixmap(screen, 0, 0, + pict_format->depth, + GLAMOR_CREATE_PIXMAP_CPU); + if (!pixmap) + return 0; + picture = CreatePicture(0, &pixmap->drawable, pict_format, + 0, 0, serverClient, &error); + screen->DestroyPixmap(pixmap); + return picture; +} + +/** + * glamor_trapezoids is a copy of miTrapezoids that does all the trapezoid + * accumulation in system memory. + */ +static Bool +_glamor_trapezoids(CARD8 op, + PicturePtr src, PicturePtr dst, + PictFormatPtr mask_format, INT16 x_src, INT16 y_src, + int ntrap, xTrapezoid * traps, Bool fallback) +{ + ScreenPtr screen = dst->pDrawable->pScreen; + BoxRec bounds; + PicturePtr picture; + INT16 x_dst, y_dst; + INT16 x_rel, y_rel; + int width, height, stride; + PixmapPtr pixmap; + pixman_image_t *image; + + /* If a mask format wasn't provided, we get to choose, but behavior should + * be as if there was no temporary mask the traps were accumulated into. + */ + if (!mask_format) { + if (dst->polyEdge == PolyEdgeSharp) + mask_format = + PictureMatchFormat(screen, 1, PICT_a1); + else + mask_format = + PictureMatchFormat(screen, 8, PICT_a8); + for (; ntrap; ntrap--, traps++) + glamor_trapezoids(op, src, dst, mask_format, x_src, + y_src, 1, traps); + return TRUE; + } + + miTrapezoidBounds(ntrap, traps, &bounds); + + if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2) + return TRUE; + + x_dst = traps[0].left.p1.x >> 16; + y_dst = traps[0].left.p1.y >> 16; + + width = bounds.x2 - bounds.x1; + height = bounds.y2 - bounds.y1; + stride = PixmapBytePad(width, mask_format->depth); + picture = glamor_create_mask_picture(screen, dst, mask_format, + width, height); + if (!picture) + return TRUE; + + image = pixman_image_create_bits(picture->format, + width, height, NULL, stride); + if (!image) { + FreePicture(picture, 0); + return TRUE; + } + + for (; ntrap; ntrap--, traps++) + pixman_rasterize_trapezoid(image, + (pixman_trapezoid_t *) traps, + -bounds.x1, -bounds.y1); + + pixmap = glamor_get_drawable_pixmap(picture->pDrawable); + + screen->ModifyPixmapHeader(pixmap, width, height, + mask_format->depth, + BitsPerPixel(mask_format->depth), + PixmapBytePad(width, + mask_format->depth), + pixman_image_get_data(image)); + + x_rel = bounds.x1 + x_src - x_dst; + y_rel = bounds.y1 + y_src - y_dst; + CompositePicture(op, src, picture, dst, + x_rel, y_rel, + 0, 0, + bounds.x1, bounds.y1, + bounds.x2 - bounds.x1, bounds.y2 - bounds.y1); + + pixman_image_unref(image); + + FreePicture(picture, 0); + return TRUE; +} + +void +glamor_trapezoids(CARD8 op, + PicturePtr src, PicturePtr dst, + PictFormatPtr mask_format, INT16 x_src, INT16 y_src, + int ntrap, xTrapezoid * traps) +{ + _glamor_trapezoids(op, src, dst, mask_format, x_src, + y_src, ntrap, traps, TRUE); +} + +Bool +glamor_trapezoids_nf(CARD8 op, + PicturePtr src, PicturePtr dst, + PictFormatPtr mask_format, INT16 x_src, INT16 y_src, + int ntrap, xTrapezoid * traps) +{ + return _glamor_trapezoids(op, src, dst, mask_format, x_src, + y_src, ntrap, traps, FALSE); +} + +#endif /* RENDER */ + |