/* * Copyright © 2001 Keith Packard * * Partly based on code that is Copyright © The XFree86 Project Inc. * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the name of Keith Packard not be used in * advertising or publicity pertaining to distribution of the software without * specific, written prior permission. Keith Packard makes no * representations about the suitability of this software for any purpose. It * is provided "as is" without express or implied warranty. * * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. */ #ifdef HAVE_DIX_CONFIG_H #include #endif #include #include "uxa-priv.h" #include #ifdef RENDER #include "mipict.h" static void uxa_composite_fallback_pict_desc(PicturePtr pict, char *string, int n) { char format[20]; char size[20]; char loc; if (!pict) { snprintf(string, n, "None"); return; } if (pict->pDrawable == NULL) { snprintf(string, n, "source-only"); return; } switch (pict->format) { case PICT_a8r8g8b8: snprintf(format, 20, "ARGB8888"); break; case PICT_x8r8g8b8: snprintf(format, 20, "XRGB8888"); break; case PICT_r5g6b5: snprintf(format, 20, "RGB565 "); break; case PICT_x1r5g5b5: snprintf(format, 20, "RGB555 "); break; case PICT_a8: snprintf(format, 20, "A8 "); break; case PICT_a1: snprintf(format, 20, "A1 "); break; default: snprintf(format, 20, "0x%x", (int)pict->format); break; } loc = uxa_drawable_is_offscreen(pict->pDrawable) ? 's' : 'm'; snprintf(size, 20, "%dx%d%s", pict->pDrawable->width, pict->pDrawable->height, pict->repeat ? " R" : ""); snprintf(string, n, "%p:%c fmt %s (%s)%s", pict->pDrawable, loc, format, size, pict->alphaMap ? " with alpha map" :""); } static const char * op_to_string(CARD8 op) { switch (op) { #define C(x) case PictOp##x: return #x C(Clear); C(Src); C(Dst); C(Over); C(OverReverse); C(In); C(InReverse); C(Out); C(OutReverse); C(Atop); C(AtopReverse); C(Xor); C(Add); C(Saturate); /* * Operators only available in version 0.2 */ C(DisjointClear); C(DisjointSrc); C(DisjointDst); C(DisjointOver); C(DisjointOverReverse); C(DisjointIn); C(DisjointInReverse); C(DisjointOut); C(DisjointOutReverse); C(DisjointAtop); C(DisjointAtopReverse); C(DisjointXor); C(ConjointClear); C(ConjointSrc); C(ConjointDst); C(ConjointOver); C(ConjointOverReverse); C(ConjointIn); C(ConjointInReverse); C(ConjointOut); C(ConjointOutReverse); C(ConjointAtop); C(ConjointAtopReverse); C(ConjointXor); /* * Operators only available in version 0.11 */ C(Multiply); C(Screen); C(Overlay); C(Darken); C(Lighten); C(ColorDodge); C(ColorBurn); C(HardLight); C(SoftLight); C(Difference); C(Exclusion); C(HSLHue); C(HSLSaturation); C(HSLColor); C(HSLLuminosity); default: return "garbage"; #undef C } } static void uxa_print_composite_fallback(const char *func, CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst) { uxa_screen_t *uxa_screen = uxa_get_screen(pDst->pDrawable->pScreen); char srcdesc[40], maskdesc[40], dstdesc[40]; if (! uxa_screen->fallback_debug) return; /* Limit the noise if fallbacks are expected. */ if (uxa_screen->force_fallback) return; uxa_composite_fallback_pict_desc(pSrc, srcdesc, 40); uxa_composite_fallback_pict_desc(pMask, maskdesc, 40); uxa_composite_fallback_pict_desc(pDst, dstdesc, 40); ErrorF("Composite fallback at %s:\n" " op %s, \n" " src %s, \n" " mask %s, \n" " dst %s, \n" " screen %s\n", func, op_to_string (op), srcdesc, maskdesc, dstdesc, uxa_screen->swappedOut ? "swapped out" : "normal"); } Bool uxa_op_reads_destination(CARD8 op) { /* FALSE (does not read destination) is the list of ops in the protocol * document with "0" in the "Fb" column and no "Ab" in the "Fa" column. * That's just Clear and Src. ReduceCompositeOp() will already have * converted con/disjoint clear/src to Clear or Src. */ switch (op) { case PictOpClear: case PictOpSrc: return FALSE; default: return TRUE; } } static Bool uxa_get_pixel_from_rgba(CARD32 * pixel, CARD16 red, CARD16 green, CARD16 blue, CARD16 alpha, CARD32 format) { int rbits, bbits, gbits, abits; int rshift, bshift, gshift, ashift; rbits = PICT_FORMAT_R(format); gbits = PICT_FORMAT_G(format); bbits = PICT_FORMAT_B(format); abits = PICT_FORMAT_A(format); if (abits == 0) abits = PICT_FORMAT_BPP(format) - (rbits+gbits+bbits); if (PICT_FORMAT_TYPE(format) == PICT_TYPE_A) { *pixel = alpha >> (16 - abits); return TRUE; } if (!PICT_FORMAT_COLOR(format)) return FALSE; if (PICT_FORMAT_TYPE(format) == PICT_TYPE_ARGB) { bshift = 0; gshift = bbits; rshift = gshift + gbits; ashift = rshift + rbits; } else if (PICT_FORMAT_TYPE(format) == PICT_TYPE_ABGR) { rshift = 0; gshift = rbits; bshift = gshift + gbits; ashift = bshift + bbits; } else if (PICT_FORMAT_TYPE(format) == PICT_TYPE_BGRA) { ashift = 0; rshift = abits; gshift = rshift + rbits; bshift = gshift + gbits; } else { return FALSE; } *pixel = 0; *pixel |= (blue >> (16 - bbits)) << bshift; *pixel |= (green >> (16 - gbits)) << gshift; *pixel |= (red >> (16 - rbits)) << rshift; *pixel |= (alpha >> (16 - abits)) << ashift; return TRUE; } Bool uxa_get_rgba_from_pixel(CARD32 pixel, CARD16 * red, CARD16 * green, CARD16 * blue, CARD16 * alpha, CARD32 format) { int rbits, bbits, gbits, abits; int rshift, bshift, gshift, ashift; rbits = PICT_FORMAT_R(format); gbits = PICT_FORMAT_G(format); bbits = PICT_FORMAT_B(format); abits = PICT_FORMAT_A(format); if (PICT_FORMAT_TYPE(format) == PICT_TYPE_A) { rshift = gshift = bshift = ashift = 0; } else if (PICT_FORMAT_TYPE(format) == PICT_TYPE_ARGB) { bshift = 0; gshift = bbits; rshift = gshift + gbits; ashift = rshift + rbits; } else if (PICT_FORMAT_TYPE(format) == PICT_TYPE_ABGR) { rshift = 0; gshift = rbits; bshift = gshift + gbits; ashift = bshift + bbits; } else if (PICT_FORMAT_TYPE(format) == PICT_TYPE_BGRA) { ashift = 0; rshift = abits; if (abits == 0) rshift = PICT_FORMAT_BPP(format) - (rbits+gbits+bbits); gshift = rshift + rbits; bshift = gshift + gbits; } else { return FALSE; } if (rbits) { *red = ((pixel >> rshift) & ((1 << rbits) - 1)) << (16 - rbits); while (rbits < 16) { *red |= *red >> rbits; rbits <<= 1; } } else *red = 0; if (gbits) { *green = ((pixel >> gshift) & ((1 << gbits) - 1)) << (16 - gbits); while (gbits < 16) { *green |= *green >> gbits; gbits <<= 1; } } else *green = 0; if (bbits) { *blue = ((pixel >> bshift) & ((1 << bbits) - 1)) << (16 - bbits); while (bbits < 16) { *blue |= *blue >> bbits; bbits <<= 1; } } else *blue = 0; if (abits) { *alpha = ((pixel >> ashift) & ((1 << abits) - 1)) << (16 - abits); while (abits < 16) { *alpha |= *alpha >> abits; abits <<= 1; } } else *alpha = 0xffff; return TRUE; } Bool uxa_get_color_for_pixmap (PixmapPtr pixmap, CARD32 src_format, CARD32 dst_format, CARD32 *pixel) { CARD16 red, green, blue, alpha; *pixel = uxa_get_pixmap_first_pixel(pixmap); if (src_format != dst_format) { if (!uxa_get_rgba_from_pixel(*pixel, &red, &green, &blue, &alpha, src_format)) return FALSE; if (!uxa_get_pixel_from_rgba(pixel, red, green, blue, alpha, dst_format)) return FALSE; } return TRUE; } static int uxa_try_driver_solid_fill(PicturePtr pSrc, PicturePtr pDst, INT16 xSrc, INT16 ySrc, INT16 xDst, INT16 yDst, CARD16 width, CARD16 height) { uxa_screen_t *uxa_screen = uxa_get_screen(pDst->pDrawable->pScreen); RegionRec region; BoxPtr pbox; int nbox; int dst_off_x, dst_off_y; PixmapPtr pSrcPix = NULL, pDstPix; CARD32 pixel; if (uxa_screen->info->check_solid && !uxa_screen->info->check_solid(pDst->pDrawable, GXcopy, FB_ALLONES)) return -1; pDstPix = uxa_get_offscreen_pixmap(pDst->pDrawable, &dst_off_x, &dst_off_y); if (!pDstPix) return -1; xDst += pDst->pDrawable->x; yDst += pDst->pDrawable->y; if (pSrc->pDrawable) { pSrcPix = uxa_get_drawable_pixmap(pSrc->pDrawable); xSrc += pSrc->pDrawable->x; ySrc += pSrc->pDrawable->y; } if (!miComputeCompositeRegion(®ion, pSrc, NULL, pDst, xSrc, ySrc, 0, 0, xDst, yDst, width, height)) return 1; if (pSrcPix) { if (! uxa_get_color_for_pixmap (pSrcPix, pSrc->format, pDst->format, &pixel)) { REGION_UNINIT(pDst->pDrawable->pScreen, ®ion); return -1; } } else { SourcePict *source = pSrc->pSourcePict; PictSolidFill *solid = &source->solidFill; if (source == NULL || source->type != SourcePictTypeSolidFill) { REGION_UNINIT(pDst->pDrawable->pScreen, ®ion); return -1; } if (pDst->format == PICT_a8r8g8b8) { pixel = solid->color; } else if (pDst->format == PICT_x8r8g8b8) { pixel = solid->color | 0xff000000; } else { CARD16 red, green, blue, alpha; if (!uxa_get_rgba_from_pixel(solid->color, &red, &green, &blue, &alpha, PICT_a8r8g8b8) || !uxa_get_pixel_from_rgba(&pixel, red, green, blue, alpha, pDst->format)) { REGION_UNINIT(pDst->pDrawable->pScreen, ®ion); return -1; } } } if (!(*uxa_screen->info->prepare_solid) (pDstPix, GXcopy, FB_ALLONES, pixel)) { REGION_UNINIT(pDst->pDrawable->pScreen, ®ion); return -1; } REGION_TRANSLATE(pScreen, ®ion, dst_off_x, dst_off_y); nbox = REGION_NUM_RECTS(®ion); pbox = REGION_RECTS(®ion); while (nbox--) { (*uxa_screen->info->solid) (pDstPix, pbox->x1, pbox->y1, pbox->x2, pbox->y2); pbox++; } (*uxa_screen->info->done_solid) (pDstPix); REGION_UNINIT(pDst->pDrawable->pScreen, ®ion); return 1; } static PicturePtr uxa_picture_for_pixman_format(ScreenPtr pScreen, pixman_format_code_t format, int width, int height) { PicturePtr pPicture; PixmapPtr pPixmap; int error; if (format == PIXMAN_a1) format = PIXMAN_a8; /* fill alpha if unset */ if (PIXMAN_FORMAT_A(format) == 0) format = PIXMAN_a8r8g8b8; pPixmap = (*pScreen->CreatePixmap)(pScreen, width, height, PIXMAN_FORMAT_DEPTH(format), UXA_CREATE_PIXMAP_FOR_MAP); if (!pPixmap) return 0; pPicture = CreatePicture(0, &pPixmap->drawable, PictureMatchFormat(pScreen, PIXMAN_FORMAT_DEPTH(format), format), 0, 0, serverClient, &error); (*pScreen->DestroyPixmap) (pPixmap); if (!pPicture) return 0; ValidatePicture(pPicture); return pPicture; } static PicturePtr uxa_picture_from_pixman_image(ScreenPtr screen, pixman_image_t * image, pixman_format_code_t format) { uxa_screen_t *uxa_screen = uxa_get_screen(screen); PicturePtr picture; PixmapPtr pixmap; int width, height; width = pixman_image_get_width(image); height = pixman_image_get_height(image); picture = uxa_picture_for_pixman_format(screen, format, width, height); if (!picture) return 0; if (uxa_screen->info->put_image && ((picture->pDrawable->depth << 24) | picture->format) == format && uxa_screen->info->put_image((PixmapPtr)picture->pDrawable, 0, 0, width, height, (char *)pixman_image_get_data(image), pixman_image_get_stride(image))) return picture; pixmap = GetScratchPixmapHeader(screen, width, height, PIXMAN_FORMAT_DEPTH(format), PIXMAN_FORMAT_BPP(format), pixman_image_get_stride(image), pixman_image_get_data(image)); if (!pixmap) { FreePicture(picture, 0); return 0; } if (((picture->pDrawable->depth << 24) | picture->format) == format) { GCPtr gc; gc = GetScratchGC(PIXMAN_FORMAT_DEPTH(format), screen); if (!gc) { FreeScratchPixmapHeader(pixmap); FreePicture(picture, 0); return 0; } ValidateGC(picture->pDrawable, gc); (*gc->ops->CopyArea) (&pixmap->drawable, picture->pDrawable, gc, 0, 0, width, height, 0, 0); FreeScratchGC(gc); } else { PicturePtr src; int error; src = CreatePicture(0, &pixmap->drawable, PictureMatchFormat(screen, PIXMAN_FORMAT_DEPTH(format), format), 0, 0, serverClient, &error); if (!src) { FreeScratchPixmapHeader(pixmap); FreePicture(picture, 0); return 0; } ValidatePicture(src); if (uxa_prepare_access(picture->pDrawable, NULL, UXA_ACCESS_RW)) { fbComposite(PictOpSrc, src, NULL, picture, 0, 0, 0, 0, 0, 0, width, height); uxa_finish_access(picture->pDrawable); } FreePicture(src, 0); } FreeScratchPixmapHeader(pixmap); return picture; } static PicturePtr uxa_create_solid(ScreenPtr screen, uint32_t color) { PixmapPtr pixmap; PicturePtr picture; XID repeat = RepeatNormal; int error = 0; pixmap = (*screen->CreatePixmap)(screen, 1, 1, 32, UXA_CREATE_PIXMAP_FOR_MAP); if (!pixmap) return 0; if (!uxa_prepare_access((DrawablePtr)pixmap, NULL, UXA_ACCESS_RW)) { (*screen->DestroyPixmap)(pixmap); return 0; } *((uint32_t *)pixmap->devPrivate.ptr) = color; uxa_finish_access((DrawablePtr)pixmap); picture = CreatePicture(0, &pixmap->drawable, PictureMatchFormat(screen, 32, PICT_a8r8g8b8), CPRepeat, &repeat, serverClient, &error); (*screen->DestroyPixmap)(pixmap); return picture; } static PicturePtr uxa_solid_clear(ScreenPtr screen) { uxa_screen_t *uxa_screen = uxa_get_screen(screen); PicturePtr picture; if (!uxa_screen->solid_clear) { uxa_screen->solid_clear = uxa_create_solid(screen, 0); if (!uxa_screen->solid_clear) return 0; } picture = uxa_screen->solid_clear; return picture; } PicturePtr uxa_acquire_solid(ScreenPtr screen, SourcePict *source) { uxa_screen_t *uxa_screen = uxa_get_screen(screen); PictSolidFill *solid = &source->solidFill; PicturePtr picture; int i; if ((solid->color >> 24) == 0) { picture = uxa_solid_clear(screen); if (!picture) return 0; goto DONE; } else if (solid->color == 0xff000000) { if (!uxa_screen->solid_black) { uxa_screen->solid_black = uxa_create_solid(screen, 0xff000000); if (!uxa_screen->solid_black) return 0; } picture = uxa_screen->solid_black; goto DONE; } else if (solid->color == 0xffffffff) { if (!uxa_screen->solid_white) { uxa_screen->solid_white = uxa_create_solid(screen, 0xffffffff); if (!uxa_screen->solid_white) return 0; } picture = uxa_screen->solid_white; goto DONE; } for (i = 0; i < uxa_screen->solid_cache_size; i++) { if (uxa_screen->solid_cache[i].color == solid->color) { picture = uxa_screen->solid_cache[i].picture; goto DONE; } } picture = uxa_create_solid(screen, solid->color); if (!picture) return 0; if (uxa_screen->solid_cache_size == UXA_NUM_SOLID_CACHE) { i = rand() % UXA_NUM_SOLID_CACHE; FreePicture(uxa_screen->solid_cache[i].picture, 0); } else uxa_screen->solid_cache_size++; uxa_screen->solid_cache[i].picture = picture; uxa_screen->solid_cache[i].color = solid->color; DONE: picture->refcnt++; return picture; } PicturePtr uxa_acquire_pattern(ScreenPtr pScreen, PicturePtr pSrc, pixman_format_code_t format, INT16 x, INT16 y, CARD16 width, CARD16 height) { PicturePtr pDst; if (pSrc->pSourcePict) { SourcePict *source = pSrc->pSourcePict; if (source->type == SourcePictTypeSolidFill) return uxa_acquire_solid (pScreen, source); } pDst = uxa_picture_for_pixman_format(pScreen, format, width, height); if (!pDst) return 0; if (uxa_prepare_access(pDst->pDrawable, NULL, UXA_ACCESS_RW)) { fbComposite(PictOpSrc, pSrc, NULL, pDst, x, y, 0, 0, 0, 0, width, height); uxa_finish_access(pDst->pDrawable); return pDst; } else { FreePicture(pDst, 0); return 0; } } static Bool transform_is_integer_translation(PictTransformPtr t, int *tx, int *ty) { if (t == NULL) { *tx = *ty = 0; return TRUE; } if (t->matrix[0][0] != IntToxFixed(1) || t->matrix[0][1] != 0 || t->matrix[1][0] != 0 || t->matrix[1][1] != IntToxFixed(1) || t->matrix[2][0] != 0 || t->matrix[2][1] != 0 || t->matrix[2][2] != IntToxFixed(1)) return FALSE; if (xFixedFrac(t->matrix[0][2]) != 0 || xFixedFrac(t->matrix[1][2]) != 0) return FALSE; *tx = xFixedToInt(t->matrix[0][2]); *ty = xFixedToInt(t->matrix[1][2]); return TRUE; } static PicturePtr uxa_render_picture(ScreenPtr screen, PicturePtr src, pixman_format_code_t format, INT16 x, INT16 y, CARD16 width, CARD16 height) { PicturePtr picture; int ret = 0; /* XXX we need a mechanism for the card to choose the fallback format */ /* force alpha channel in case source does not entirely cover the extents */ if (PIXMAN_FORMAT_A(format) == 0) format = PIXMAN_a8r8g8b8; /* available on all hardware */ picture = uxa_picture_for_pixman_format(screen, format, width, height); if (!picture) return 0; if (uxa_prepare_access(picture->pDrawable, NULL, UXA_ACCESS_RW)) { if (uxa_prepare_access(src->pDrawable, NULL, UXA_ACCESS_RO)) { ret = 1; fbComposite(PictOpSrc, src, NULL, picture, x, y, 0, 0, 0, 0, width, height); uxa_finish_access(src->pDrawable); } uxa_finish_access(picture->pDrawable); } if (!ret) { FreePicture(picture, 0); return 0; } return picture; } PicturePtr uxa_acquire_drawable(ScreenPtr pScreen, PicturePtr pSrc, INT16 x, INT16 y, CARD16 width, CARD16 height, INT16 * out_x, INT16 * out_y) { PixmapPtr pPixmap; PicturePtr pDst; GCPtr pGC; int depth, error; int tx, ty; depth = pSrc->pDrawable->depth; if (depth == 1 || pSrc->filter == PictFilterConvolution || /* XXX */ !transform_is_integer_translation(pSrc->transform, &tx, &ty)) { /* XXX extract the sample extents and do the transformation on the GPU */ pDst = uxa_render_picture(pScreen, pSrc, pSrc->format | (BitsPerPixel(pSrc->pDrawable->depth) << 24), x, y, width, height); goto done; } else { if (width == pSrc->pDrawable->width && height == pSrc->pDrawable->depth) { *out_x = x + pSrc->pDrawable->x; *out_y = y + pSrc->pDrawable->y; return pSrc; } } pPixmap = pScreen->CreatePixmap(pScreen, width, height, depth, CREATE_PIXMAP_USAGE_SCRATCH); if (!pPixmap) return 0; /* Skip the copy if the result remains in memory and not a bo */ if (!uxa_drawable_is_offscreen(&pPixmap->drawable)) { pScreen->DestroyPixmap(pPixmap); return 0; } pGC = GetScratchGC(depth, pScreen); if (!pGC) { pScreen->DestroyPixmap(pPixmap); return 0; } ValidateGC(&pPixmap->drawable, pGC); pGC->ops->CopyArea(pSrc->pDrawable, &pPixmap->drawable, pGC, x + tx, y + ty, width, height, 0, 0); FreeScratchGC(pGC); pDst = CreatePicture(0, &pPixmap->drawable, PictureMatchFormat(pScreen, depth, pSrc->format), 0, 0, serverClient, &error); pScreen->DestroyPixmap(pPixmap); ValidatePicture(pDst); done: pDst->componentAlpha = pSrc->componentAlpha; *out_x = x; *out_y = y; return pDst; } static PicturePtr uxa_acquire_picture(ScreenPtr screen, PicturePtr src, pixman_format_code_t format, INT16 x, INT16 y, CARD16 width, CARD16 height, INT16 * out_x, INT16 * out_y) { uxa_screen_t *uxa_screen = uxa_get_screen(screen); if (uxa_screen->info->check_composite_texture && uxa_screen->info->check_composite_texture(screen, src)) { if (src->pDrawable) { *out_x = x + src->pDrawable->x; *out_y = y + src->pDrawable->y; } else { *out_x = 0; *out_y = 0; } return src; } if (src->pDrawable) { PicturePtr dst; dst = uxa_acquire_drawable(screen, src, x, y, width, height, out_x, out_y); if (uxa_screen->info->check_composite_texture && !uxa_screen->info->check_composite_texture(screen, dst)) { if (dst != src) FreePicture(dst, 0); return 0; } return dst; } *out_x = 0; *out_y = 0; return uxa_acquire_pattern(screen, src, format, x, y, width, height); } static PicturePtr uxa_acquire_source(ScreenPtr screen, PicturePtr pict, INT16 x, INT16 y, CARD16 width, CARD16 height, INT16 * out_x, INT16 * out_y) { return uxa_acquire_picture (screen, pict, PICT_a8r8g8b8, x, y, width, height, out_x, out_y); } static PicturePtr uxa_acquire_mask(ScreenPtr screen, PicturePtr pict, INT16 x, INT16 y, INT16 width, INT16 height, INT16 * out_x, INT16 * out_y) { return uxa_acquire_picture (screen, pict, PICT_a8, x, y, width, height, out_x, out_y); } static Bool _pixman_region_init_rectangles(pixman_region16_t *region, int num_rects, xRectangle *rects, int tx, int ty) { pixman_box16_t stack_boxes[64], *boxes = stack_boxes; pixman_bool_t ret; int i; if (num_rects > sizeof(stack_boxes) / sizeof(stack_boxes[0])) { boxes = malloc(sizeof(pixman_box16_t) * num_rects); if (boxes == NULL) return FALSE; } for (i = 0; i < num_rects; i++) { boxes[i].x1 = rects[i].x + tx; boxes[i].y1 = rects[i].y + ty; boxes[i].x2 = rects[i].x + tx + rects[i].width; boxes[i].y2 = rects[i].y + ty + rects[i].height; } ret = pixman_region_init_rects(region, boxes, num_rects); if (boxes != stack_boxes) free(boxes); return ret; } void uxa_solid_rects (CARD8 op, PicturePtr dst, xRenderColor *color, int num_rects, xRectangle *rects) { ScreenPtr screen = dst->pDrawable->pScreen; uxa_screen_t *uxa_screen = uxa_get_screen(screen); PixmapPtr dst_pixmap, src_pixmap = NULL; pixman_region16_t region; pixman_box16_t *boxes, *extents; PicturePtr src; int dst_x, dst_y; int num_boxes; if (!pixman_region_not_empty(dst->pCompositeClip)) return; if (dst->alphaMap) goto fallback; dst_pixmap = uxa_get_offscreen_pixmap(dst->pDrawable, &dst_x, &dst_y); if (!dst_pixmap) goto fallback; if (!_pixman_region_init_rectangles(®ion, num_rects, rects, dst->pDrawable->x, dst->pDrawable->y)) goto fallback; if (!pixman_region_intersect(®ion, ®ion, dst->pCompositeClip)) { pixman_region_fini(®ion); return; } /* XXX xserver-1.8: CompositeRects is not tracked by Damage, so we must * manually append the damaged regions ourselves. */ DamageRegionAppend(dst->pDrawable, ®ion); pixman_region_translate(®ion, dst_x, dst_y); boxes = pixman_region_rectangles(®ion, &num_boxes); extents = pixman_region_extents (®ion); if (op == PictOpClear) color->red = color->green = color->blue = color->alpha = 0; if (color->alpha >= 0xff00 && op == PictOpOver) { color->alpha = 0xffff; op = PictOpSrc; } /* Using GEM, the relocation costs outweigh the advantages of the blitter */ if (num_boxes == 1 && (op == PictOpSrc || op == PictOpClear)) { CARD32 pixel; try_solid: if (uxa_screen->info->check_solid && !uxa_screen->info->check_solid(&dst_pixmap->drawable, GXcopy, FB_ALLONES)) goto err_region; if (!uxa_get_pixel_from_rgba(&pixel, color->red, color->green, color->blue, color->alpha, dst->format)) goto err_region; if (!uxa_screen->info->prepare_solid(dst_pixmap, GXcopy, FB_ALLONES, pixel)) goto err_region; while (num_boxes--) { uxa_screen->info->solid(dst_pixmap, boxes->x1, boxes->y1, boxes->x2, boxes->y2); boxes++; } uxa_screen->info->done_solid(dst_pixmap); } else { int error; src = CreateSolidPicture(0, color, &error); if (!src) goto err_region; if (!uxa_screen->info->check_composite(op, src, NULL, dst, extents->x2 - extents->x1, extents->y2 - extents->y1)) { if (op == PictOpSrc || op == PictOpClear) { FreePicture(src, 0); goto try_solid; } goto err_src; } if (!uxa_screen->info->check_composite_texture || !uxa_screen->info->check_composite_texture(screen, src)) { PicturePtr solid; int src_off_x, src_off_y; solid = uxa_acquire_solid(screen, src->pSourcePict); FreePicture(src, 0); src = solid; src_pixmap = uxa_get_offscreen_pixmap(src->pDrawable, &src_off_x, &src_off_y); if (!src_pixmap) goto err_src; } if (!uxa_screen->info->prepare_composite(op, src, NULL, dst, src_pixmap, NULL, dst_pixmap)) goto err_src; while (num_boxes--) { uxa_screen->info->composite(dst_pixmap, 0, 0, 0, 0, boxes->x1, boxes->y1, boxes->x2 - boxes->x1, boxes->y2 - boxes->y1); boxes++; } uxa_screen->info->done_composite(dst_pixmap); FreePicture(src, 0); } pixman_region_fini(®ion); return; err_src: FreePicture(src, 0); err_region: pixman_region_fini(®ion); fallback: uxa_screen->SavedCompositeRects(op, dst, color, num_rects, rects); } static int uxa_try_driver_composite(CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst, INT16 xSrc, INT16 ySrc, INT16 xMask, INT16 yMask, INT16 xDst, INT16 yDst, CARD16 width, CARD16 height) { ScreenPtr screen = pDst->pDrawable->pScreen; uxa_screen_t *uxa_screen = uxa_get_screen(screen); RegionRec region; BoxPtr pbox; int nbox; int xDst_copy, yDst_copy; int src_off_x, src_off_y, mask_off_x, mask_off_y, dst_off_x, dst_off_y; PixmapPtr pSrcPix, pMaskPix = NULL, pDstPix; PicturePtr localSrc, localMask = NULL; PicturePtr localDst = pDst; if (uxa_screen->info->check_composite && !(*uxa_screen->info->check_composite) (op, pSrc, pMask, pDst, width, height)) return -1; if (uxa_screen->info->check_composite_target && !uxa_screen->info->check_composite_target(uxa_get_drawable_pixmap(pDst->pDrawable))) { int depth = pDst->pDrawable->depth; PixmapPtr pixmap; int error; GCPtr gc; pixmap = uxa_get_drawable_pixmap(pDst->pDrawable); if (uxa_screen->info->check_copy && !uxa_screen->info->check_copy(pixmap, pixmap, GXcopy, FB_ALLONES)) return -1; pixmap = screen->CreatePixmap(screen, width, height, depth, CREATE_PIXMAP_USAGE_SCRATCH); if (!pixmap) return 0; gc = GetScratchGC(depth, screen); if (!gc) { screen->DestroyPixmap(pixmap); return 0; } ValidateGC(&pixmap->drawable, gc); gc->ops->CopyArea(pDst->pDrawable, &pixmap->drawable, gc, xDst, yDst, width, height, 0, 0); FreeScratchGC(gc); xDst_copy = xDst; xDst = 0; yDst_copy = yDst; yDst = 0; localDst = CreatePicture(0, &pixmap->drawable, PictureMatchFormat(screen, depth, pDst->format), 0, 0, serverClient, &error); screen->DestroyPixmap(pixmap); if (!localDst) return 0; ValidatePicture(localDst); } pDstPix = uxa_get_offscreen_pixmap(localDst->pDrawable, &dst_off_x, &dst_off_y); if (!pDstPix) { if (localDst != pDst) FreePicture(localDst, 0); return -1; } xDst += localDst->pDrawable->x; yDst += localDst->pDrawable->y; localSrc = uxa_acquire_source(screen, pSrc, xSrc, ySrc, width, height, &xSrc, &ySrc); if (!localSrc) { if (localDst != pDst) FreePicture(localDst, 0); return 0; } if (pMask) { localMask = uxa_acquire_mask(screen, pMask, xMask, yMask, width, height, &xMask, &yMask); if (!localMask) { if (localSrc != pSrc) FreePicture(localSrc, 0); if (localDst != pDst) FreePicture(localDst, 0); return 0; } } if (!miComputeCompositeRegion(®ion, localSrc, localMask, localDst, xSrc, ySrc, xMask, yMask, xDst, yDst, width, height)) { if (localSrc != pSrc) FreePicture(localSrc, 0); if (localMask && localMask != pMask) FreePicture(localMask, 0); if (localDst != pDst) FreePicture(localDst, 0); return 1; } if (localSrc->pDrawable) { pSrcPix = uxa_get_offscreen_pixmap(localSrc->pDrawable, &src_off_x, &src_off_y); if (!pSrcPix) { REGION_UNINIT(screen, ®ion); if (localSrc != pSrc) FreePicture(localSrc, 0); if (localMask && localMask != pMask) FreePicture(localMask, 0); if (localDst != pDst) FreePicture(localDst, 0); return 0; } } else { pSrcPix = NULL; } if (localMask) { if (localMask->pDrawable) { pMaskPix = uxa_get_offscreen_pixmap(localMask->pDrawable, &mask_off_x, &mask_off_y); if (!pMaskPix) { REGION_UNINIT(screen, ®ion); if (localSrc != pSrc) FreePicture(localSrc, 0); if (localMask && localMask != pMask) FreePicture(localMask, 0); if (localDst != pDst) FreePicture(localDst, 0); return 0; } } else { pMaskPix = NULL; } } if (!(*uxa_screen->info->prepare_composite) (op, localSrc, localMask, localDst, pSrcPix, pMaskPix, pDstPix)) { REGION_UNINIT(screen, ®ion); if (localSrc != pSrc) FreePicture(localSrc, 0); if (localMask && localMask != pMask) FreePicture(localMask, 0); if (localDst != pDst) FreePicture(localDst, 0); return -1; } if (pMask) { xMask = xMask + mask_off_x - xDst; yMask = yMask + mask_off_y - yDst; } xSrc = xSrc + src_off_x - xDst; ySrc = ySrc + src_off_y - yDst; nbox = REGION_NUM_RECTS(®ion); pbox = REGION_RECTS(®ion); while (nbox--) { (*uxa_screen->info->composite) (pDstPix, pbox->x1 + xSrc, pbox->y1 + ySrc, pbox->x1 + xMask, pbox->y1 + yMask, pbox->x1 + dst_off_x, pbox->y1 + dst_off_y, pbox->x2 - pbox->x1, pbox->y2 - pbox->y1); pbox++; } (*uxa_screen->info->done_composite) (pDstPix); REGION_UNINIT(screen, ®ion); if (localSrc != pSrc) FreePicture(localSrc, 0); if (localMask && localMask != pMask) FreePicture(localMask, 0); if (localDst != pDst) { GCPtr gc; gc = GetScratchGC(pDst->pDrawable->depth, screen); if (gc) { ValidateGC(pDst->pDrawable, gc); gc->ops->CopyArea(localDst->pDrawable, pDst->pDrawable, gc, 0, 0, width, height, xDst_copy, yDst_copy); FreeScratchGC(gc); } FreePicture(localDst, 0); } return 1; } /** * uxa_try_magic_two_pass_composite_helper implements PictOpOver using two passes of * simpler operations PictOpOutReverse and PictOpAdd. Mainly used for component * alpha and limited 1-tmu cards. * * From http://anholt.livejournal.com/32058.html: * * The trouble is that component-alpha rendering requires two different sources * for blending: one for the source value to the blender, which is the * per-channel multiplication of source and mask, and one for the source alpha * for multiplying with the destination channels, which is the multiplication * of the source channels by the mask alpha. So the equation for Over is: * * dst.A = src.A * mask.A + (1 - (src.A * mask.A)) * dst.A * dst.R = src.R * mask.R + (1 - (src.A * mask.R)) * dst.R * dst.G = src.G * mask.G + (1 - (src.A * mask.G)) * dst.G * dst.B = src.B * mask.B + (1 - (src.A * mask.B)) * dst.B * * But we can do some simpler operations, right? How about PictOpOutReverse, * which has a source factor of 0 and dest factor of (1 - source alpha). We * can get the source alpha value (srca.X = src.A * mask.X) out of the texture * blenders pretty easily. So we can do a component-alpha OutReverse, which * gets us: * * dst.A = 0 + (1 - (src.A * mask.A)) * dst.A * dst.R = 0 + (1 - (src.A * mask.R)) * dst.R * dst.G = 0 + (1 - (src.A * mask.G)) * dst.G * dst.B = 0 + (1 - (src.A * mask.B)) * dst.B * * OK. And if an op doesn't use the source alpha value for the destination * factor, then we can do the channel multiplication in the texture blenders * to get the source value, and ignore the source alpha that we wouldn't use. * We've supported this in the Radeon driver for a long time. An example would * be PictOpAdd, which does: * * dst.A = src.A * mask.A + dst.A * dst.R = src.R * mask.R + dst.R * dst.G = src.G * mask.G + dst.G * dst.B = src.B * mask.B + dst.B * * Hey, this looks good! If we do a PictOpOutReverse and then a PictOpAdd right * after it, we get: * * dst.A = src.A * mask.A + ((1 - (src.A * mask.A)) * dst.A) * dst.R = src.R * mask.R + ((1 - (src.A * mask.R)) * dst.R) * dst.G = src.G * mask.G + ((1 - (src.A * mask.G)) * dst.G) * dst.B = src.B * mask.B + ((1 - (src.A * mask.B)) * dst.B) */ static int uxa_try_magic_two_pass_composite_helper(CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst, INT16 xSrc, INT16 ySrc, INT16 xMask, INT16 yMask, INT16 xDst, INT16 yDst, CARD16 width, CARD16 height) { ScreenPtr screen = pDst->pDrawable->pScreen; uxa_screen_t *uxa_screen = uxa_get_screen(screen); PicturePtr localDst = pDst; int xDst_copy, yDst_copy; assert(op == PictOpOver); if (uxa_screen->info->check_composite && (!(*uxa_screen->info->check_composite) (PictOpOutReverse, pSrc, pMask, pDst, width, height) || !(*uxa_screen->info->check_composite) (PictOpAdd, pSrc, pMask, pDst, width, height))) { return -1; } if (uxa_screen->info->check_composite_target && !uxa_screen->info->check_composite_target(uxa_get_drawable_pixmap(pDst->pDrawable))) { int depth = pDst->pDrawable->depth; PixmapPtr pixmap; int error; GCPtr gc; pixmap = uxa_get_drawable_pixmap(pDst->pDrawable); if (uxa_screen->info->check_copy && !uxa_screen->info->check_copy(pixmap, pixmap, GXcopy, FB_ALLONES)) return -1; pixmap = screen->CreatePixmap(screen, width, height, depth, CREATE_PIXMAP_USAGE_SCRATCH); if (!pixmap) return 0; gc = GetScratchGC(depth, screen); if (!gc) { screen->DestroyPixmap(pixmap); return 0; } ValidateGC(&pixmap->drawable, gc); gc->ops->CopyArea(pDst->pDrawable, &pixmap->drawable, gc, xDst, yDst, width, height, 0, 0); FreeScratchGC(gc); xDst_copy = xDst; xDst = 0; yDst_copy = yDst; yDst = 0; localDst = CreatePicture(0, &pixmap->drawable, PictureMatchFormat(screen, depth, pDst->format), 0, 0, serverClient, &error); screen->DestroyPixmap(pixmap); if (!localDst) return 0; ValidatePicture(localDst); } /* Now, we think we should be able to accelerate this operation. First, * composite the destination to be the destination times the source alpha * factors. */ uxa_composite(PictOpOutReverse, pSrc, pMask, localDst, xSrc, ySrc, xMask, yMask, xDst, yDst, width, height); /* Then, add in the source value times the destination alpha factors (1.0). */ uxa_composite(PictOpAdd, pSrc, pMask, localDst, xSrc, ySrc, xMask, yMask, xDst, yDst, width, height); if (localDst != pDst) { GCPtr gc; gc = GetScratchGC(pDst->pDrawable->depth, screen); if (gc) { ValidateGC(pDst->pDrawable, gc); gc->ops->CopyArea(localDst->pDrawable, pDst->pDrawable, gc, 0, 0, width, height, xDst_copy, yDst_copy); FreeScratchGC(gc); } FreePicture(localDst, 0); } return 1; } static int compatible_formats (CARD8 op, PicturePtr dst, PicturePtr src) { if (op == PictOpSrc) { if (src->format == dst->format) return 1; /* Is the destination an alpha-less version of source? */ if (dst->format == PICT_FORMAT(PICT_FORMAT_BPP(src->format), PICT_FORMAT_TYPE(src->format), 0, PICT_FORMAT_R(src->format), PICT_FORMAT_G(src->format), PICT_FORMAT_B(src->format))) return 1; /* XXX xrgb is promoted to argb during image upload... */ #if 0 if (dst->format == PICT_a8r8g8b8 && src->format == PICT_x8r8g8b8) return 1; #endif } else if (op == PictOpOver) { if (PICT_FORMAT_A(src->format)) return 0; return src->format == dst->format; } return 0; } static int drawable_contains (DrawablePtr drawable, int x, int y, int w, int h) { if (x < 0 || y < 0) return FALSE; if (x + w > drawable->width) return FALSE; if (y + h > drawable->height) return FALSE; return TRUE; } void uxa_composite(CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst, INT16 xSrc, INT16 ySrc, INT16 xMask, INT16 yMask, INT16 xDst, INT16 yDst, CARD16 width, CARD16 height) { uxa_screen_t *uxa_screen = uxa_get_screen(pDst->pDrawable->pScreen); int ret = -1; Bool saveSrcRepeat = pSrc->repeat; Bool saveMaskRepeat = pMask ? pMask->repeat : 0; RegionRec region; int tx, ty; if (uxa_screen->swappedOut || uxa_screen->force_fallback) goto fallback; if (!uxa_drawable_is_offscreen(pDst->pDrawable)) goto fallback; if (pDst->alphaMap || pSrc->alphaMap || (pMask && pMask->alphaMap)) goto fallback; /* Remove repeat in source if useless */ if (pSrc->pDrawable && pSrc->repeat && pSrc->filter != PictFilterConvolution && transform_is_integer_translation(pSrc->transform, &tx, &ty) && (pSrc->pDrawable->width > 1 || pSrc->pDrawable->height > 1) && drawable_contains(pSrc->pDrawable, xSrc + tx, ySrc + ty, width, height)) pSrc->repeat = 0; if (!pMask) { if (op == PictOpClear) { PicturePtr clear = uxa_solid_clear(pDst->pDrawable->pScreen); if (clear && uxa_try_driver_solid_fill(clear, pDst, xSrc, ySrc, xDst, yDst, width, height) == 1) goto done; } if (pSrc->pDrawable == NULL) { if (pSrc->pSourcePict) { SourcePict *source = pSrc->pSourcePict; if (source->type == SourcePictTypeSolidFill) { if (op == PictOpSrc || (op == PictOpOver && (source->solidFill.color & 0xff000000) == 0xff000000)) { ret = uxa_try_driver_solid_fill(pSrc, pDst, xSrc, ySrc, xDst, yDst, width, height); if (ret == 1) goto done; } } } } else if (pSrc->pDrawable->width == 1 && pSrc->pDrawable->height == 1 && pSrc->repeat && (op == PictOpSrc || (op == PictOpOver && !PICT_FORMAT_A(pSrc->format)))) { ret = uxa_try_driver_solid_fill(pSrc, pDst, xSrc, ySrc, xDst, yDst, width, height); if (ret == 1) goto done; } else if (compatible_formats (op, pDst, pSrc) && pSrc->filter != PictFilterConvolution && transform_is_integer_translation(pSrc->transform, &tx, &ty)) { if (!pSrc->repeat && drawable_contains(pSrc->pDrawable, xSrc + tx, ySrc + ty, width, height)) { xDst += pDst->pDrawable->x; yDst += pDst->pDrawable->y; xSrc += pSrc->pDrawable->x + tx; ySrc += pSrc->pDrawable->y + ty; if (!miComputeCompositeRegion (®ion, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask, xDst, yDst, width, height)) goto done; uxa_copy_n_to_n(pSrc->pDrawable, pDst->pDrawable, NULL, REGION_RECTS(®ion), REGION_NUM_RECTS(®ion), xSrc - xDst, ySrc - yDst, FALSE, FALSE, 0, NULL); REGION_UNINIT(pDst->pDrawable->pScreen, ®ion); goto done; } else if (pSrc->repeat && pSrc->repeatType == RepeatNormal && pSrc->pDrawable->type == DRAWABLE_PIXMAP) { DDXPointRec patOrg; /* Let's see if the driver can do the repeat * in one go */ if (uxa_screen->info->prepare_composite) { ret = uxa_try_driver_composite(op, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask, xDst, yDst, width, height); if (ret == 1) goto done; } /* Now see if we can use * uxa_fill_region_tiled() */ xDst += pDst->pDrawable->x; yDst += pDst->pDrawable->y; xSrc += pSrc->pDrawable->x + tx; ySrc += pSrc->pDrawable->y + ty; if (!miComputeCompositeRegion (®ion, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask, xDst, yDst, width, height)) goto done; /* pattern origin is the point in the * destination drawable * corresponding to (0,0) in the source */ patOrg.x = xDst - xSrc; patOrg.y = yDst - ySrc; ret = uxa_fill_region_tiled(pDst->pDrawable, ®ion, (PixmapPtr) pSrc-> pDrawable, &patOrg, FB_ALLONES, GXcopy); REGION_UNINIT(pDst->pDrawable->pScreen, ®ion); if (ret) goto done; } } } /* Remove repeat in mask if useless */ if (pMask && pMask->pDrawable && pMask->repeat && pMask->filter != PictFilterConvolution && transform_is_integer_translation(pMask->transform, &tx, &ty) && (pMask->pDrawable->width > 1 || pMask->pDrawable->height > 1) && drawable_contains(pMask->pDrawable, xMask + tx, yMask + ty, width, height)) pMask->repeat = 0; if (uxa_screen->info->prepare_composite) { Bool isSrcSolid; ret = uxa_try_driver_composite(op, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask, xDst, yDst, width, height); if (ret == 1) goto done; /* For generic masks and solid src pictures, mach64 can do * Over in two passes, similar to the component-alpha case. */ isSrcSolid = pSrc->pDrawable ? pSrc->pDrawable->width == 1 && pSrc->pDrawable->height == 1 && pSrc->repeat : pSrc->pSourcePict ? pSrc->pSourcePict->type == SourcePictTypeSolidFill : 0; /* If we couldn't do the Composite in a single pass, and it * was a component-alpha Over, see if we can do it in two * passes with an OutReverse and then an Add. */ if (ret == -1 && op == PictOpOver && pMask && (pMask->componentAlpha || isSrcSolid)) { ret = uxa_try_magic_two_pass_composite_helper(op, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask, xDst, yDst, width, height); if (ret == 1) goto done; } } fallback: uxa_print_composite_fallback("uxa_composite", op, pSrc, pMask, pDst); uxa_check_composite(op, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask, xDst, yDst, width, height); done: pSrc->repeat = saveSrcRepeat; if (pMask) pMask->repeat = saveMaskRepeat; } #endif /** * Same as miCreateAlphaPicture, except it uses uxa_check_poly_fill_rect instead * of PolyFillRect to initialize the pixmap after creating it, to prevent * the pixmap from being migrated. * * See the comments about uxa_trapezoids and uxa_triangles. */ static PicturePtr uxa_create_alpha_picture(ScreenPtr pScreen, PicturePtr pDst, PictFormatPtr pPictFormat, CARD16 width, CARD16 height) { PixmapPtr pPixmap; PicturePtr pPicture; int error; if (width > 32767 || height > 32767) return 0; if (!pPictFormat) { if (pDst->polyEdge == PolyEdgeSharp) pPictFormat = PictureMatchFormat(pScreen, 1, PICT_a1); else pPictFormat = PictureMatchFormat(pScreen, 8, PICT_a8); if (!pPictFormat) return 0; } pPixmap = (*pScreen->CreatePixmap) (pScreen, width, height, pPictFormat->depth, UXA_CREATE_PIXMAP_FOR_MAP); if (!pPixmap) return 0; pPicture = CreatePicture(0, &pPixmap->drawable, pPictFormat, 0, 0, serverClient, &error); (*pScreen->DestroyPixmap) (pPixmap); return pPicture; } /** * uxa_trapezoids is essentially a copy of miTrapezoids that uses * uxa_create_alpha_picture instead of miCreateAlphaPicture. * * The problem with miCreateAlphaPicture is that it calls PolyFillRect * to initialize the contents after creating the pixmap, which * causes the pixmap to be moved in for acceleration. The subsequent * call to RasterizeTrapezoid won't be accelerated however, which * forces the pixmap to be moved out again. * * uxa_create_alpha_picture avoids this roundtrip by using * uxa_check_poly_fill_rect to initialize the contents. */ void uxa_trapezoids(CARD8 op, PicturePtr src, PicturePtr dst, PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, int ntrap, xTrapezoid * traps) { ScreenPtr screen = dst->pDrawable->pScreen; BoxRec bounds; Bool direct; direct = op == PictOpAdd && miIsSolidAlpha(src); if (maskFormat || direct) { miTrapezoidBounds(ntrap, traps, &bounds); if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2) return; } /* * Check for solid alpha add */ if (direct) { DrawablePtr pDraw = dst->pDrawable; PixmapPtr pixmap = uxa_get_drawable_pixmap(pDraw); int xoff, yoff; uxa_get_drawable_deltas(pDraw, pixmap, &xoff, &yoff); xoff += pDraw->x; yoff += pDraw->y; if (uxa_prepare_access(pDraw, NULL, UXA_ACCESS_RW)) { PictureScreenPtr ps = GetPictureScreen(screen); for (; ntrap; ntrap--, traps++) (*ps->RasterizeTrapezoid) (dst, traps, 0, 0); uxa_finish_access(pDraw); } } else if (maskFormat) { PixmapPtr scratch = NULL; PicturePtr mask; INT16 xDst, yDst; INT16 xRel, yRel; int width, height; pixman_image_t *image; pixman_format_code_t format; xDst = traps[0].left.p1.x >> 16; yDst = traps[0].left.p1.y >> 16; width = bounds.x2 - bounds.x1; height = bounds.y2 - bounds.y1; format = maskFormat->format | (BitsPerPixel(maskFormat->depth) << 24); image = pixman_image_create_bits(format, width, height, NULL, 0); if (!image) return; for (; ntrap; ntrap--, traps++) pixman_rasterize_trapezoid(image, (pixman_trapezoid_t *) traps, -bounds.x1, -bounds.y1); if (uxa_drawable_is_offscreen(dst->pDrawable)) { mask = uxa_picture_from_pixman_image(screen, image, format); } else { int error; scratch = GetScratchPixmapHeader(screen, width, height, PIXMAN_FORMAT_DEPTH(format), PIXMAN_FORMAT_BPP(format), pixman_image_get_stride(image), pixman_image_get_data(image)); mask = CreatePicture(0, &scratch->drawable, PictureMatchFormat(screen, PIXMAN_FORMAT_DEPTH(format), format), 0, 0, serverClient, &error); } if (!mask) { if (scratch) FreeScratchPixmapHeader(scratch); pixman_image_unref(image); return; } xRel = bounds.x1 + xSrc - xDst; yRel = bounds.y1 + ySrc - yDst; CompositePicture(op, src, mask, dst, xRel, yRel, 0, 0, bounds.x1, bounds.y1, width, height); FreePicture(mask, 0); if (scratch) FreeScratchPixmapHeader(scratch); pixman_image_unref(image); } else { if (dst->polyEdge == PolyEdgeSharp) maskFormat = PictureMatchFormat(screen, 1, PICT_a1); else maskFormat = PictureMatchFormat(screen, 8, PICT_a8); for (; ntrap; ntrap--, traps++) uxa_trapezoids(op, src, dst, maskFormat, xSrc, ySrc, 1, traps); } } /** * uxa_triangles is essentially a copy of miTriangles that uses * uxa_create_alpha_picture instead of miCreateAlphaPicture. * * The problem with miCreateAlphaPicture is that it calls PolyFillRect * to initialize the contents after creating the pixmap, which * causes the pixmap to be moved in for acceleration. The subsequent * call to AddTriangles won't be accelerated however, which forces the pixmap * to be moved out again. * * uxa_create_alpha_picture avoids this roundtrip by using * uxa_check_poly_fill_rect to initialize the contents. */ void uxa_triangles(CARD8 op, PicturePtr pSrc, PicturePtr pDst, PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, int ntri, xTriangle * tris) { ScreenPtr pScreen = pDst->pDrawable->pScreen; PictureScreenPtr ps = GetPictureScreen(pScreen); BoxRec bounds; Bool direct = op == PictOpAdd && miIsSolidAlpha(pSrc); if (maskFormat || direct) { miTriangleBounds(ntri, tris, &bounds); if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2) return; } /* * Check for solid alpha add */ if (direct) { DrawablePtr pDraw = pDst->pDrawable; if (uxa_prepare_access(pDraw, NULL, UXA_ACCESS_RW)) { (*ps->AddTriangles) (pDst, 0, 0, ntri, tris); uxa_finish_access(pDraw); } } else if (maskFormat) { PicturePtr pPicture; INT16 xDst, yDst; INT16 xRel, yRel; int width = bounds.x2 - bounds.x1; int height = bounds.y2 - bounds.y1; GCPtr pGC; xRectangle rect; xDst = tris[0].p1.x >> 16; yDst = tris[0].p1.y >> 16; pPicture = uxa_create_alpha_picture(pScreen, pDst, maskFormat, width, height); if (!pPicture) return; /* Clear the alpha picture to 0. */ pGC = GetScratchGC(pPicture->pDrawable->depth, pScreen); if (!pGC) { FreePicture(pPicture, 0); return; } ValidateGC(pPicture->pDrawable, pGC); rect.x = 0; rect.y = 0; rect.width = width; rect.height = height; uxa_check_poly_fill_rect(pPicture->pDrawable, pGC, 1, &rect); FreeScratchGC(pGC); if (uxa_prepare_access(pPicture->pDrawable, NULL, UXA_ACCESS_RW)) { (*ps->AddTriangles) (pPicture, -bounds.x1, -bounds.y1, ntri, tris); uxa_finish_access(pPicture->pDrawable); } xRel = bounds.x1 + xSrc - xDst; yRel = bounds.y1 + ySrc - yDst; CompositePicture(op, pSrc, pPicture, pDst, xRel, yRel, 0, 0, bounds.x1, bounds.y1, bounds.x2 - bounds.x1, bounds.y2 - bounds.y1); FreePicture(pPicture, 0); } else { if (pDst->polyEdge == PolyEdgeSharp) maskFormat = PictureMatchFormat(pScreen, 1, PICT_a1); else maskFormat = PictureMatchFormat(pScreen, 8, PICT_a8); for (; ntri; ntri--, tris++) uxa_triangles(op, pSrc, pDst, maskFormat, xSrc, ySrc, 1, tris); } }