diff options
Diffstat (limited to 'xorg-server/fb/fbpict.c')
| -rw-r--r-- | xorg-server/fb/fbpict.c | 471 |
1 files changed, 471 insertions, 0 deletions
diff --git a/xorg-server/fb/fbpict.c b/xorg-server/fb/fbpict.c new file mode 100644 index 000000000..85b5171c5 --- /dev/null +++ b/xorg-server/fb/fbpict.c @@ -0,0 +1,471 @@ +/* + * + * Copyright © 2000 SuSE, Inc. + * Copyright © 2007 Red Hat, 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 SuSE not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. SuSE makes no representations about the + * suitability of this software for any purpose. It is provided "as is" + * without express or implied warranty. + * + * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE + * 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. + * + * Author: Keith Packard, SuSE, Inc. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <string.h> + +#include "fb.h" + +#ifdef RENDER + +#include "picturestr.h" +#include "mipict.h" +#include "fbpict.h" + +#define mod(a,b) ((b) == 1 ? 0 : (a) >= 0 ? (a) % (b) : (b) - (-a) % (b)) + +void +fbWalkCompositeRegion (CARD8 op, + PicturePtr pSrc, + PicturePtr pMask, + PicturePtr pDst, + INT16 xSrc, + INT16 ySrc, + INT16 xMask, + INT16 yMask, + INT16 xDst, + INT16 yDst, + CARD16 width, + CARD16 height, + Bool srcRepeat, + Bool maskRepeat, + CompositeFunc compositeRect) +{ + RegionRec region; + int n; + BoxPtr pbox; + int w, h, w_this, h_this; + int x_msk, y_msk, x_src, y_src, x_dst, y_dst; + + xDst += pDst->pDrawable->x; + yDst += pDst->pDrawable->y; + if (pSrc->pDrawable) + { + xSrc += pSrc->pDrawable->x; + ySrc += pSrc->pDrawable->y; + } + if (pMask && pMask->pDrawable) + { + xMask += pMask->pDrawable->x; + yMask += pMask->pDrawable->y; + } + + if (!miComputeCompositeRegion (®ion, pSrc, pMask, pDst, xSrc, ySrc, + xMask, yMask, xDst, yDst, width, height)) + return; + + n = REGION_NUM_RECTS (®ion); + pbox = REGION_RECTS (®ion); + while (n--) + { + h = pbox->y2 - pbox->y1; + y_src = pbox->y1 - yDst + ySrc; + y_msk = pbox->y1 - yDst + yMask; + y_dst = pbox->y1; + while (h) + { + h_this = h; + w = pbox->x2 - pbox->x1; + x_src = pbox->x1 - xDst + xSrc; + x_msk = pbox->x1 - xDst + xMask; + x_dst = pbox->x1; + if (maskRepeat) + { + y_msk = mod (y_msk - pMask->pDrawable->y, pMask->pDrawable->height); + if (h_this > pMask->pDrawable->height - y_msk) + h_this = pMask->pDrawable->height - y_msk; + y_msk += pMask->pDrawable->y; + } + if (srcRepeat) + { + y_src = mod (y_src - pSrc->pDrawable->y, pSrc->pDrawable->height); + if (h_this > pSrc->pDrawable->height - y_src) + h_this = pSrc->pDrawable->height - y_src; + y_src += pSrc->pDrawable->y; + } + while (w) + { + w_this = w; + if (maskRepeat) + { + x_msk = mod (x_msk - pMask->pDrawable->x, pMask->pDrawable->width); + if (w_this > pMask->pDrawable->width - x_msk) + w_this = pMask->pDrawable->width - x_msk; + x_msk += pMask->pDrawable->x; + } + if (srcRepeat) + { + x_src = mod (x_src - pSrc->pDrawable->x, pSrc->pDrawable->width); + if (w_this > pSrc->pDrawable->width - x_src) + w_this = pSrc->pDrawable->width - x_src; + x_src += pSrc->pDrawable->x; + } + (*compositeRect) (op, pSrc, pMask, pDst, + x_src, y_src, x_msk, y_msk, x_dst, y_dst, + w_this, h_this); + w -= w_this; + x_src += w_this; + x_msk += w_this; + x_dst += w_this; + } + h -= h_this; + y_src += h_this; + y_msk += h_this; + y_dst += h_this; + } + pbox++; + } + REGION_UNINIT (pDst->pDrawable->pScreen, ®ion); +} + +void +fbComposite (CARD8 op, + PicturePtr pSrc, + PicturePtr pMask, + PicturePtr pDst, + INT16 xSrc, + INT16 ySrc, + INT16 xMask, + INT16 yMask, + INT16 xDst, + INT16 yDst, + CARD16 width, + CARD16 height) +{ + pixman_image_t *src, *mask, *dest; + + xDst += pDst->pDrawable->x; + yDst += pDst->pDrawable->y; + if (pSrc->pDrawable) + { + xSrc += pSrc->pDrawable->x; + ySrc += pSrc->pDrawable->y; + } + if (pMask && pMask->pDrawable) + { + xMask += pMask->pDrawable->x; + yMask += pMask->pDrawable->y; + } + + miCompositeSourceValidate (pSrc, xSrc, ySrc, width, height); + if (pMask) + miCompositeSourceValidate (pMask, xMask, yMask, width, height); + + src = image_from_pict (pSrc, TRUE); + mask = image_from_pict (pMask, TRUE); + dest = image_from_pict (pDst, TRUE); + + if (src && dest && !(pMask && !mask)) + { + pixman_image_composite (op, src, mask, dest, + xSrc, ySrc, xMask, yMask, xDst, yDst, + width, height); + } + + free_pixman_pict (pSrc, src); + free_pixman_pict (pMask, mask); + free_pixman_pict (pDst, dest); +} + +void +fbCompositeGeneral (CARD8 op, + PicturePtr pSrc, + PicturePtr pMask, + PicturePtr pDst, + INT16 xSrc, + INT16 ySrc, + INT16 xMask, + INT16 yMask, + INT16 xDst, + INT16 yDst, + CARD16 width, + CARD16 height) +{ + fbComposite (op, pSrc, pMask, pDst, + xSrc, ySrc, xMask, yMask, xDst, yDst, + width, height); +} + +#endif /* RENDER */ + +static pixman_image_t * +create_solid_fill_image (PicturePtr pict) +{ + PictSolidFill *solid = &pict->pSourcePict->solidFill; + pixman_color_t color; + CARD32 a, r, g, b; + + a = (solid->color & 0xff000000) >> 24; + r = (solid->color & 0x00ff0000) >> 16; + g = (solid->color & 0x0000ff00) >> 8; + b = (solid->color & 0x000000ff) >> 0; + + color.alpha = (a << 8) | a; + color.red = (r << 8) | r; + color.green = (g << 8) | g; + color.blue = (b << 8) | b; + + return pixman_image_create_solid_fill (&color); +} + +static pixman_image_t * +create_linear_gradient_image (PictGradient *gradient) +{ + PictLinearGradient *linear = (PictLinearGradient *)gradient; + pixman_point_fixed_t p1; + pixman_point_fixed_t p2; + + p1.x = linear->p1.x; + p1.y = linear->p1.y; + p2.x = linear->p2.x; + p2.y = linear->p2.y; + + return pixman_image_create_linear_gradient ( + &p1, &p2, (pixman_gradient_stop_t *)gradient->stops, gradient->nstops); +} + +static pixman_image_t * +create_radial_gradient_image (PictGradient *gradient) +{ + PictRadialGradient *radial = (PictRadialGradient *)gradient; + pixman_point_fixed_t c1; + pixman_point_fixed_t c2; + + c1.x = radial->c1.x; + c1.y = radial->c1.y; + c2.x = radial->c2.x; + c2.y = radial->c2.y; + + return pixman_image_create_radial_gradient ( + &c1, &c2, radial->c1.radius, + radial->c2.radius, + (pixman_gradient_stop_t *)gradient->stops, gradient->nstops); +} + +static pixman_image_t * +create_conical_gradient_image (PictGradient *gradient) +{ + PictConicalGradient *conical = (PictConicalGradient *)gradient; + pixman_point_fixed_t center; + + center.x = conical->center.x; + center.y = conical->center.y; + + return pixman_image_create_conical_gradient ( + ¢er, conical->angle, (pixman_gradient_stop_t *)gradient->stops, + gradient->nstops); +} + +static pixman_image_t * +create_bits_picture (PicturePtr pict, + Bool has_clip) +{ + FbBits *bits; + FbStride stride; + int bpp, xoff, yoff; + pixman_image_t *image; + + fbGetDrawable (pict->pDrawable, bits, stride, bpp, xoff, yoff); + + bits = (CARD8*)bits + yoff * stride * sizeof(FbBits) + xoff * (bpp / 8); + + image = pixman_image_create_bits ( + pict->format, + pict->pDrawable->width, pict->pDrawable->height, + (uint32_t *)bits, stride * sizeof (FbStride)); + + +#ifdef FB_ACCESS_WRAPPER +#if FB_SHIFT==5 + + pixman_image_set_accessors (image, + (pixman_read_memory_func_t)wfbReadMemory, + (pixman_write_memory_func_t)wfbWriteMemory); + +#else + +#error The pixman library only works when FbBits is 32 bits wide + +#endif +#endif + + /* pCompositeClip is undefined for source pictures, so + * only set the clip region for pictures with drawables + */ + if (has_clip) + { + if (pict->clientClipType != CT_NONE) + pixman_image_set_has_client_clip (image, TRUE); + + pixman_image_set_clip_region (image, pict->pCompositeClip); + } + + /* Indexed table */ + if (pict->pFormat->index.devPrivate) + pixman_image_set_indexed (image, pict->pFormat->index.devPrivate); + + return image; +} + +static void +set_image_properties (pixman_image_t *image, PicturePtr pict) +{ + pixman_repeat_t repeat; + pixman_filter_t filter; + + if (pict->transform) + { + pixman_image_set_transform ( + image, (pixman_transform_t *)pict->transform); + } + + switch (pict->repeatType) + { + default: + case RepeatNone: + repeat = PIXMAN_REPEAT_NONE; + break; + + case RepeatPad: + repeat = PIXMAN_REPEAT_PAD; + break; + + case RepeatNormal: + repeat = PIXMAN_REPEAT_NORMAL; + break; + + case RepeatReflect: + repeat = PIXMAN_REPEAT_REFLECT; + break; + } + + pixman_image_set_repeat (image, repeat); + + if (pict->alphaMap) + { + pixman_image_t *alpha_map = image_from_pict (pict->alphaMap, TRUE); + + pixman_image_set_alpha_map ( + image, alpha_map, pict->alphaOrigin.x, pict->alphaOrigin.y); + + free_pixman_pict (pict->alphaMap, alpha_map); + } + + pixman_image_set_component_alpha (image, pict->componentAlpha); + + switch (pict->filter) + { + default: + case PictFilterNearest: + case PictFilterFast: + filter = PIXMAN_FILTER_NEAREST; + break; + + case PictFilterBilinear: + case PictFilterGood: + filter = PIXMAN_FILTER_BILINEAR; + break; + + case PictFilterConvolution: + filter = PIXMAN_FILTER_CONVOLUTION; + break; + } + + pixman_image_set_filter (image, filter, (pixman_fixed_t *)pict->filter_params, pict->filter_nparams); + pixman_image_set_source_clipping (image, TRUE); +} + +pixman_image_t * +image_from_pict (PicturePtr pict, + Bool has_clip) +{ + pixman_image_t *image = NULL; + + if (!pict) + return NULL; + + if (pict->pDrawable) + { + image = create_bits_picture (pict, has_clip); + } + else if (pict->pSourcePict) + { + SourcePict *sp = pict->pSourcePict; + + if (sp->type == SourcePictTypeSolidFill) + { + image = create_solid_fill_image (pict); + } + else + { + PictGradient *gradient = &pict->pSourcePict->gradient; + + if (sp->type == SourcePictTypeLinear) + image = create_linear_gradient_image (gradient); + else if (sp->type == SourcePictTypeRadial) + image = create_radial_gradient_image (gradient); + else if (sp->type == SourcePictTypeConical) + image = create_conical_gradient_image (gradient); + } + } + + if (image) + set_image_properties (image, pict); + + return image; +} + +void +free_pixman_pict (PicturePtr pict, pixman_image_t *image) +{ + if (image && pixman_image_unref (image) && pict->pDrawable) + fbFinishAccess (pict->pDrawable); +} + +Bool +fbPictureInit (ScreenPtr pScreen, PictFormatPtr formats, int nformats) +{ + +#ifdef RENDER + + PictureScreenPtr ps; + + if (!miPictureInit (pScreen, formats, nformats)) + return FALSE; + ps = GetPictureScreen(pScreen); + ps->Composite = fbComposite; + ps->Glyphs = miGlyphs; + ps->CompositeRects = miCompositeRects; + ps->RasterizeTrapezoid = fbRasterizeTrapezoid; + ps->AddTraps = fbAddTraps; + ps->AddTriangles = fbAddTriangles; + +#endif /* RENDER */ + + return TRUE; +} |