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Diffstat (limited to 'src/cairo_xcb_surface.c')
| -rw-r--r-- | src/cairo_xcb_surface.c | 978 |
1 files changed, 0 insertions, 978 deletions
diff --git a/src/cairo_xcb_surface.c b/src/cairo_xcb_surface.c deleted file mode 100644 index 0694b77a2..000000000 --- a/src/cairo_xcb_surface.c +++ /dev/null @@ -1,978 +0,0 @@ -/* cairo - a vector graphics library with display and print output - * - * Copyright © 2002 University of Southern California - * - * This library is free software; you can redistribute it and/or - * modify it either under the terms of the GNU Lesser General Public - * License version 2.1 as published by the Free Software Foundation - * (the "LGPL") or, at your option, under the terms of the Mozilla - * Public License Version 1.1 (the "MPL"). If you do not alter this - * notice, a recipient may use your version of this file under either - * the MPL or the LGPL. - * - * You should have received a copy of the LGPL along with this library - * in the file COPYING-LGPL-2.1; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * You should have received a copy of the MPL along with this library - * in the file COPYING-MPL-1.1 - * - * The contents of this file are subject to the Mozilla Public License - * Version 1.1 (the "License"); you may not use this file except in - * compliance with the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY - * OF ANY KIND, either express or implied. See the LGPL or the MPL for - * the specific language governing rights and limitations. - * - * The Original Code is the cairo graphics library. - * - * The Initial Developer of the Original Code is University of Southern - * California. - * - * Contributor(s): - * Carl D. Worth <cworth@cworth.org> - */ - -#include "cairoint.h" -#include "cairo-xcb.h" - -cairo_surface_t * -cairo_xcb_surface_create (XCBConnection *dpy, - XCBDRAWABLE drawable, - XCBVISUALTYPE *visual, - cairo_format_t format); - -#define AllPlanes ((unsigned long)~0L) - -static XCBRenderPICTFORMAT -format_from_visual(XCBConnection *c, XCBVISUALID visual) -{ - static const XCBRenderPICTFORMAT nil = { 0 }; - XCBRenderQueryPictFormatsRep *r; - XCBRenderPICTSCREENIter si; - XCBRenderPICTDEPTHIter di; - XCBRenderPICTVISUALIter vi; - - r = XCBRenderQueryPictFormatsReply(c, XCBRenderQueryPictFormats(c), 0); - if(!r) - return nil; - - for(si = XCBRenderQueryPictFormatsScreensIter(r); si.rem; XCBRenderPICTSCREENNext(&si)) - for(di = XCBRenderPICTSCREENDepthsIter(si.data); di.rem; XCBRenderPICTDEPTHNext(&di)) - for(vi = XCBRenderPICTDEPTHVisualsIter(di.data); vi.rem; XCBRenderPICTVISUALNext(&vi)) - if(vi.data->visual.id == visual.id) - { - XCBRenderPICTFORMAT ret = vi.data->format; - free(r); - return ret; - } - - return nil; -} - -static XCBRenderPICTFORMAT -format_from_cairo(XCBConnection *c, cairo_format_t fmt) -{ - XCBRenderPICTFORMAT ret = { 0 }; - struct tmpl_t { - XCBRenderDIRECTFORMAT direct; - CARD8 depth; - }; - static const struct tmpl_t templates[] = { - /* CAIRO_FORMAT_ARGB32 */ - { - { - 16, 0xff, - 8, 0xff, - 0, 0xff, - 24, 0xff - }, - 32 - }, - /* CAIRO_FORMAT_RGB24 */ - { - { - 16, 0xff, - 8, 0xff, - 0, 0xff, - 0, 0x00 - }, - 24 - }, - /* CAIRO_FORMAT_A8 */ - { - { - 0, 0x00, - 0, 0x00, - 0, 0x00, - 0, 0xff - }, - 8 - }, - /* CAIRO_FORMAT_A1 */ - { - { - 0, 0x00, - 0, 0x00, - 0, 0x00, - 0, 0x01 - }, - 1 - }, - }; - const struct tmpl_t *tmpl; - XCBRenderQueryPictFormatsRep *r; - XCBRenderPICTFORMINFOIter fi; - - if(fmt < 0 || fmt >= (sizeof(templates) / sizeof(*templates))) - return ret; - tmpl = templates + fmt; - - r = XCBRenderQueryPictFormatsReply(c, XCBRenderQueryPictFormats(c), 0); - if(!r) - return ret; - - for(fi = XCBRenderQueryPictFormatsFormatsIter(r); fi.rem; XCBRenderPICTFORMINFONext(&fi)) - { - const XCBRenderDIRECTFORMAT *t, *f; - if(fi.data->type != XCBRenderPictTypeDirect) - continue; - if(fi.data->depth != tmpl->depth) - continue; - t = &tmpl->direct; - f = &fi.data->direct; - if(t->red_mask && (t->red_mask != f->red_mask || t->red_shift != f->red_shift)) - continue; - if(t->green_mask && (t->green_mask != f->green_mask || t->green_shift != f->green_shift)) - continue; - if(t->blue_mask && (t->blue_mask != f->blue_mask || t->blue_shift != f->blue_shift)) - continue; - if(t->alpha_mask && (t->alpha_mask != f->alpha_mask || t->alpha_shift != f->alpha_shift)) - continue; - - ret = fi.data->id; - } - - free(r); - return ret; -} - -void -cairo_set_target_xcb (cairo_t *cr, - XCBConnection *dpy, - XCBDRAWABLE drawable, - XCBVISUALTYPE *visual, - cairo_format_t format) -{ - cairo_surface_t *surface; - - if (cr->status && cr->status != CAIRO_STATUS_NO_TARGET_SURFACE) - return; - - surface = cairo_xcb_surface_create (dpy, drawable, visual, format); - if (surface == NULL) { - cr->status = CAIRO_STATUS_NO_MEMORY; - return; - } - - cairo_set_target_surface (cr, surface); - - /* cairo_set_target_surface takes a reference, so we must destroy ours */ - cairo_surface_destroy (surface); -} - -typedef struct cairo_xcb_surface { - cairo_surface_t base; - - XCBConnection *dpy; - XCBGCONTEXT gc; - XCBDRAWABLE drawable; - int owns_pixmap; - XCBVISUALTYPE *visual; - cairo_format_t format; - - int render_major; - int render_minor; - - int width; - int height; - - XCBRenderPICTURE picture; -} cairo_xcb_surface_t; - -#define CAIRO_SURFACE_RENDER_AT_LEAST(surface, major, minor) \ - (((surface)->render_major > major) || \ - (((surface)->render_major == major) && ((surface)->render_minor >= minor))) - -#define CAIRO_SURFACE_RENDER_HAS_CREATE_PICTURE(surface) CAIRO_SURFACE_RENDER_AT_LEAST((surface), 0, 0) -#define CAIRO_SURFACE_RENDER_HAS_COMPOSITE(surface) CAIRO_SURFACE_RENDER_AT_LEAST((surface), 0, 0) - -#define CAIRO_SURFACE_RENDER_HAS_FILL_RECTANGLE(surface) CAIRO_SURFACE_RENDER_AT_LEAST((surface), 0, 1) -#define CAIRO_SURFACE_RENDER_HAS_FILL_RECTANGLES(surface) CAIRO_SURFACE_RENDER_AT_LEAST((surface), 0, 1) - -#define CAIRO_SURFACE_RENDER_HAS_DISJOINT(surface) CAIRO_SURFACE_RENDER_AT_LEAST((surface), 0, 2) -#define CAIRO_SURFACE_RENDER_HAS_CONJOINT(surface) CAIRO_SURFACE_RENDER_AT_LEAST((surface), 0, 2) - -#define CAIRO_SURFACE_RENDER_HAS_TRAPEZOIDS(surface) CAIRO_SURFACE_RENDER_AT_LEAST((surface), 0, 4) -#define CAIRO_SURFACE_RENDER_HAS_TRIANGLES(surface) CAIRO_SURFACE_RENDER_AT_LEAST((surface), 0, 4) -#define CAIRO_SURFACE_RENDER_HAS_TRISTRIP(surface) CAIRO_SURFACE_RENDER_AT_LEAST((surface), 0, 4) -#define CAIRO_SURFACE_RENDER_HAS_TRIFAN(surface) CAIRO_SURFACE_RENDER_AT_LEAST((surface), 0, 4) - -#define CAIRO_SURFACE_RENDER_HAS_PICTURE_TRANSFORM(surface) CAIRO_SURFACE_RENDER_AT_LEAST((surface), 0, 6) -#define CAIRO_SURFACE_RENDER_HAS_FILTERS(surface) CAIRO_SURFACE_RENDER_AT_LEAST((surface), 0, 6) - -static int -_CAIRO_FORMAT_DEPTH (cairo_format_t format) -{ - switch (format) { - case CAIRO_FORMAT_A1: - return 1; - case CAIRO_FORMAT_A8: - return 8; - case CAIRO_FORMAT_RGB24: - return 24; - case CAIRO_FORMAT_ARGB32: - default: - return 32; - } -} - -static cairo_surface_t * -_cairo_xcb_surface_create_similar (void *abstract_src, - cairo_format_t format, - int drawable, - int width, - int height) -{ - cairo_xcb_surface_t *src = abstract_src; - XCBConnection *dpy = src->dpy; - XCBDRAWABLE d; - cairo_xcb_surface_t *surface; - - /* XXX: There's a pretty lame heuristic here. This assumes that - * all non-Render X servers do not support depth-32 pixmaps, (and - * that they do support depths 1, 8, and 24). Obviously, it would - * be much better to check the depths that are actually - * supported. */ - if (!dpy - || (!CAIRO_SURFACE_RENDER_HAS_COMPOSITE (src) - && format == CAIRO_FORMAT_ARGB32)) - { - return NULL; - } - - d.pixmap = XCBPIXMAPNew (dpy); - XCBCreatePixmap (dpy, _CAIRO_FORMAT_DEPTH (format), - d.pixmap, src->drawable, - width, height); - - surface = (cairo_xcb_surface_t *) - cairo_xcb_surface_create (dpy, d, NULL, format); - surface->owns_pixmap = 1; - - surface->width = width; - surface->height = height; - - return &surface->base; -} - -static void -_cairo_xcb_surface_destroy (void *abstract_surface) -{ - cairo_xcb_surface_t *surface = abstract_surface; - if (surface->picture.xid) - XCBRenderFreePicture (surface->dpy, surface->picture); - - if (surface->owns_pixmap) - XCBFreePixmap (surface->dpy, surface->drawable.pixmap); - - if (surface->gc.xid) - XCBFreeGC (surface->dpy, surface->gc); - - surface->dpy = 0; - - free (surface); -} - -static double -_cairo_xcb_surface_pixels_per_inch (void *abstract_surface) -{ - /* XXX: We should really get this value from somewhere like Xft.dpy */ - return 96.0; -} - -static int -bits_per_pixel(XCBConnection *c, int depth) -{ - XCBFORMAT *fmt = XCBConnSetupSuccessRepPixmapFormats(XCBGetSetup(c)); - XCBFORMAT *fmtend = fmt + XCBConnSetupSuccessRepPixmapFormatsLength(XCBGetSetup(c)); - - for(; fmt != fmtend; ++fmt) - if(fmt->depth == depth) - return fmt->bits_per_pixel; - - if(depth <= 4) - return 4; - if(depth <= 8) - return 8; - if(depth <= 16) - return 16; - return 32; -} - -static int -bytes_per_line(XCBConnection *c, int width, int bpp) -{ - int bitmap_pad = XCBGetSetup(c)->bitmap_format_scanline_pad; - return ((bpp * width + bitmap_pad - 1) & -bitmap_pad) >> 3; -} - -static cairo_status_t -_get_image_surface (cairo_xcb_surface_t *surface, - cairo_rectangle_t *interest_rect, - cairo_image_surface_t **image_out, - cairo_rectangle_t *image_rect) -{ - cairo_image_surface_t *image; - XCBGetGeometryRep *geomrep; - XCBGetImageRep *imagerep; - int bpp; - int x1, y1, x2, y2; - - geomrep = XCBGetGeometryReply(surface->dpy, XCBGetGeometry(surface->dpy, surface->drawable), 0); - if(!geomrep) - return 0; - - surface->width = geomrep->width; - surface->height = geomrep->height; - free(geomrep); - - x1 = 0; - y1 = 0; - x2 = surface->width; - y2 = surface->height; - - if (interest_rect) { - if (interest_rect->x > x1) - x1 = interest_rect->x; - if (interest_rect->y > y1) - y1 = interest_rect->y; - if (interest_rect->x + interest_rect->width < x2) - x2 = interest_rect->x + interest_rect->width; - if (interest_rect->y + interest_rect->height < y2) - y2 = interest_rect->y + interest_rect->height; - - if (x1 >= x2 || y1 >= y2) { - *image_out = NULL; - return CAIRO_STATUS_SUCCESS; - } - } - - if (image_rect) { - image_rect->x = x1; - image_rect->y = y1; - image_rect->width = x2 - x1; - image_rect->height = y2 - y1; - } - - imagerep = XCBGetImageReply(surface->dpy, - XCBGetImage(surface->dpy, ZPixmap, - surface->drawable, - x1, y1, - x2 - x1, y2 - y1, - AllPlanes), 0); - if(!imagerep) - return 0; - - bpp = bits_per_pixel(surface->dpy, imagerep->depth); - - if (surface->visual) { - cairo_format_masks_t masks; - - /* XXX: Add support here for pictures with external alpha? */ - - masks.bpp = bpp; - masks.alpha_mask = 0; - masks.red_mask = surface->visual->red_mask; - masks.green_mask = surface->visual->green_mask; - masks.blue_mask = surface->visual->blue_mask; - - image = _cairo_image_surface_create_with_masks (XCBGetImageData(imagerep), - &masks, - x2 - x1, - y2 - y1, - bytes_per_line(surface->dpy, surface->width, bpp)); - } else { - image = (cairo_image_surface_t *) - cairo_image_surface_create_for_data (XCBGetImageData(imagerep), - surface->format, - x2 - x1, - y2 - y1, - bytes_per_line(surface->dpy, surface->width, bpp)); - } - - /* Let the surface take ownership of the data */ - /* XXX: Can probably come up with a cleaner API here. */ - _cairo_image_surface_assume_ownership_of_data (image); - /* FIXME: imagerep can't be freed correctly, I think. must copy. :-( */ - - _cairo_image_surface_set_repeat (image, surface->base.repeat); - _cairo_image_surface_set_matrix (image, &(surface->base.matrix)); - - *image_out = image; - return CAIRO_STATUS_SUCCESS; -} - -static void -_cairo_xcb_surface_ensure_gc (cairo_xcb_surface_t *surface) -{ - if (surface->gc.xid) - return; - - surface->gc = XCBGCONTEXTNew(surface->dpy); - XCBCreateGC (surface->dpy, surface->gc, surface->drawable, 0, 0); -} - -static cairo_status_t -_draw_image_surface (cairo_xcb_surface_t *surface, - cairo_image_surface_t *image, - int dst_x, - int dst_y) -{ - int bpp, data_len; - - _cairo_xcb_surface_ensure_gc (surface); - bpp = bits_per_pixel(surface->dpy, image->depth); - data_len = bytes_per_line(surface->dpy, image->width, bpp) * image->height; - XCBPutImage(surface->dpy, ZPixmap, surface->drawable, surface->gc, - image->width, - image->height, - dst_x, dst_y, - /* left_pad */ 0, image->depth, - data_len, image->data); - - return CAIRO_STATUS_SUCCESS; -} - -static cairo_status_t -_cairo_xcb_surface_acquire_source_image (void *abstract_surface, - cairo_image_surface_t **image_out, - void **image_extra) -{ - cairo_xcb_surface_t *surface = abstract_surface; - cairo_image_surface_t *image; - cairo_status_t status; - - status = _get_image_surface (surface, NULL, &image, NULL); - if (status == CAIRO_STATUS_SUCCESS) { - cairo_surface_set_filter (&image->base, surface->base.filter); - cairo_surface_set_matrix (&image->base, &surface->base.matrix); - cairo_surface_set_repeat (&image->base, surface->base.repeat); - - *image_out = image; - } - - return status; -} - -static void -_cairo_xcb_surface_release_source_image (void *abstract_surface, - cairo_image_surface_t *image, - void *image_extra) -{ - cairo_surface_destroy (&image->base); -} - -static cairo_status_t -_cairo_xcb_surface_acquire_dest_image (void *abstract_surface, - cairo_rectangle_t *interest_rect, - cairo_image_surface_t **image_out, - cairo_rectangle_t *image_rect_out, - void **image_extra) -{ - cairo_xcb_surface_t *surface = abstract_surface; - cairo_image_surface_t *image; - cairo_status_t status; - - status = _get_image_surface (surface, interest_rect, &image, image_rect_out); - if (status == CAIRO_STATUS_SUCCESS) - *image_out = image; - - return status; -} - -static void -_cairo_xcb_surface_release_dest_image (void *abstract_surface, - cairo_rectangle_t *interest_rect, - cairo_image_surface_t *image, - cairo_rectangle_t *image_rect, - void *image_extra) -{ - cairo_xcb_surface_t *surface = abstract_surface; - - /* ignore errors */ - _draw_image_surface (surface, image, image_rect->x, image_rect->y); - - cairo_surface_destroy (&image->base); -} - -static cairo_status_t -_cairo_xcb_surface_clone_similar (void *abstract_surface, - cairo_surface_t *src, - cairo_surface_t **clone_out) -{ - cairo_xcb_surface_t *surface = abstract_surface; - cairo_xcb_surface_t *clone; - - if (src->backend == surface->base.backend ) { - cairo_xcb_surface_t *xcb_src = (cairo_xcb_surface_t *)src; - - if (xcb_src->dpy == surface->dpy) { - *clone_out = src; - cairo_surface_reference (src); - - return CAIRO_STATUS_SUCCESS; - } - } else if (_cairo_surface_is_image (src)) { - cairo_image_surface_t *image_src = (cairo_image_surface_t *)src; - - clone = (cairo_xcb_surface_t *) - _cairo_xcb_surface_create_similar (surface, image_src->format, 0, - image_src->width, image_src->height); - if (clone == NULL) - return CAIRO_STATUS_NO_MEMORY; - - _draw_image_surface (clone, image_src, 0, 0); - - *clone_out = &clone->base; - - return CAIRO_STATUS_SUCCESS; - } - - return CAIRO_INT_STATUS_UNSUPPORTED; -} - -static cairo_status_t -_cairo_xcb_surface_set_matrix (cairo_xcb_surface_t *surface, - cairo_matrix_t *matrix) -{ - XCBRenderTRANSFORM xtransform; - - if (!surface->picture.xid) - return CAIRO_STATUS_SUCCESS; - - xtransform.matrix11 = _cairo_fixed_from_double (matrix->m[0][0]); - xtransform.matrix12 = _cairo_fixed_from_double (matrix->m[1][0]); - xtransform.matrix13 = _cairo_fixed_from_double (matrix->m[2][0]); - - xtransform.matrix21 = _cairo_fixed_from_double (matrix->m[0][1]); - xtransform.matrix22 = _cairo_fixed_from_double (matrix->m[1][1]); - xtransform.matrix23 = _cairo_fixed_from_double (matrix->m[2][1]); - - xtransform.matrix31 = 0; - xtransform.matrix32 = 0; - xtransform.matrix33 = _cairo_fixed_from_double (1); - - if (!CAIRO_SURFACE_RENDER_HAS_PICTURE_TRANSFORM (surface)) - { - static const XCBRenderTRANSFORM identity = { - 1 << 16, 0x00000, 0x00000, - 0x00000, 1 << 16, 0x00000, - 0x00000, 0x00000, 1 << 16 - }; - - if (memcmp (&xtransform, &identity, sizeof (XCBRenderTRANSFORM)) == 0) - return CAIRO_STATUS_SUCCESS; - - return CAIRO_INT_STATUS_UNSUPPORTED; - } - - XCBRenderSetPictureTransform (surface->dpy, surface->picture, xtransform); - - return CAIRO_STATUS_SUCCESS; -} - -static cairo_status_t -_cairo_xcb_surface_set_filter (cairo_xcb_surface_t *surface, - cairo_filter_t filter) -{ - char *render_filter; - - if (!surface->picture.xid) - return CAIRO_STATUS_SUCCESS; - - if (!CAIRO_SURFACE_RENDER_HAS_FILTERS (surface)) - { - if (filter == CAIRO_FILTER_FAST || filter == CAIRO_FILTER_NEAREST) - return CAIRO_STATUS_SUCCESS; - - return CAIRO_INT_STATUS_UNSUPPORTED; - } - - switch (filter) { - case CAIRO_FILTER_FAST: - render_filter = "fast"; - break; - case CAIRO_FILTER_GOOD: - render_filter = "good"; - break; - case CAIRO_FILTER_BEST: - render_filter = "best"; - break; - case CAIRO_FILTER_NEAREST: - render_filter = "nearest"; - break; - case CAIRO_FILTER_BILINEAR: - render_filter = "bilinear"; - break; - default: - render_filter = "best"; - break; - } - - XCBRenderSetPictureFilter(surface->dpy, surface->picture, - strlen(render_filter), render_filter, 0, NULL); - - return CAIRO_STATUS_SUCCESS; -} - -static cairo_status_t -_cairo_xcb_surface_set_repeat (cairo_xcb_surface_t *surface, int repeat) -{ - CARD32 mask = XCBRenderCPRepeat; - CARD32 pa[] = { repeat }; - - if (!surface->picture.xid) - return CAIRO_STATUS_SUCCESS; - - XCBRenderChangePicture (surface->dpy, surface->picture, mask, pa); - - return CAIRO_STATUS_SUCCESS; -} - -static cairo_int_status_t -_cairo_xcb_surface_set_attributes (cairo_xcb_surface_t *surface, - cairo_surface_attributes_t *attributes) -{ - cairo_int_status_t status; - - status = _cairo_xcb_surface_set_matrix (surface, &attributes->matrix); - if (status) - return status; - - switch (attributes->extend) { - case CAIRO_EXTEND_NONE: - _cairo_xcb_surface_set_repeat (surface, 0); - break; - case CAIRO_EXTEND_REPEAT: - _cairo_xcb_surface_set_repeat (surface, 1); - break; - case CAIRO_EXTEND_REFLECT: - return CAIRO_INT_STATUS_UNSUPPORTED; - } - - status = _cairo_xcb_surface_set_filter (surface, attributes->filter); - if (status) - return status; - - return CAIRO_STATUS_SUCCESS; -} - -static int -_render_operator (cairo_operator_t operator) -{ - switch (operator) { - case CAIRO_OPERATOR_CLEAR: - return XCBRenderPictOpClear; - case CAIRO_OPERATOR_SRC: - return XCBRenderPictOpSrc; - case CAIRO_OPERATOR_DST: - return XCBRenderPictOpDst; - case CAIRO_OPERATOR_OVER: - return XCBRenderPictOpOver; - case CAIRO_OPERATOR_OVER_REVERSE: - return XCBRenderPictOpOverReverse; - case CAIRO_OPERATOR_IN: - return XCBRenderPictOpIn; - case CAIRO_OPERATOR_IN_REVERSE: - return XCBRenderPictOpInReverse; - case CAIRO_OPERATOR_OUT: - return XCBRenderPictOpOut; - case CAIRO_OPERATOR_OUT_REVERSE: - return XCBRenderPictOpOutReverse; - case CAIRO_OPERATOR_ATOP: - return XCBRenderPictOpAtop; - case CAIRO_OPERATOR_ATOP_REVERSE: - return XCBRenderPictOpAtopReverse; - case CAIRO_OPERATOR_XOR: - return XCBRenderPictOpXor; - case CAIRO_OPERATOR_ADD: - return XCBRenderPictOpAdd; - case CAIRO_OPERATOR_SATURATE: - return XCBRenderPictOpSaturate; - default: - return XCBRenderPictOpOver; - } -} - -static cairo_int_status_t -_cairo_xcb_surface_composite (cairo_operator_t operator, - cairo_pattern_t *src_pattern, - cairo_pattern_t *mask_pattern, - void *abstract_dst, - int src_x, - int src_y, - int mask_x, - int mask_y, - int dst_x, - int dst_y, - unsigned int width, - unsigned int height) -{ - cairo_surface_attributes_t src_attr, mask_attr; - cairo_xcb_surface_t *dst = abstract_dst; - cairo_xcb_surface_t *src; - cairo_xcb_surface_t *mask; - cairo_int_status_t status; - - if (!CAIRO_SURFACE_RENDER_HAS_COMPOSITE (dst)) - return CAIRO_INT_STATUS_UNSUPPORTED; - - status = _cairo_pattern_acquire_surfaces (src_pattern, mask_pattern, - &dst->base, - src_x, src_y, - mask_x, mask_y, - width, height, - (cairo_surface_t **) &src, - (cairo_surface_t **) &mask, - &src_attr, &mask_attr); - if (status) - return status; - - status = _cairo_xcb_surface_set_attributes (src, &src_attr); - if (CAIRO_OK (status)) - { - if (mask) - { - status = _cairo_xcb_surface_set_attributes (mask, &mask_attr); - if (CAIRO_OK (status)) - XCBRenderComposite (dst->dpy, - _render_operator (operator), - src->picture, - mask->picture, - dst->picture, - src_x + src_attr.x_offset, - src_y + src_attr.y_offset, - mask_x + mask_attr.x_offset, - mask_y + mask_attr.y_offset, - dst_x, dst_y, - width, height); - } - else - { - static XCBRenderPICTURE maskpict = { 0 }; - - XCBRenderComposite (dst->dpy, - _render_operator (operator), - src->picture, - maskpict, - dst->picture, - src_x + src_attr.x_offset, - src_y + src_attr.y_offset, - 0, 0, - dst_x, dst_y, - width, height); - } - } - - if (mask) - _cairo_pattern_release_surface (&dst->base, &mask->base, &mask_attr); - - _cairo_pattern_release_surface (&dst->base, &src->base, &src_attr); - - return status; -} - -static cairo_int_status_t -_cairo_xcb_surface_fill_rectangles (void *abstract_surface, - cairo_operator_t operator, - const cairo_color_t *color, - cairo_rectangle_t *rects, - int num_rects) -{ - cairo_xcb_surface_t *surface = abstract_surface; - XCBRenderCOLOR render_color; - - if (!CAIRO_SURFACE_RENDER_HAS_FILL_RECTANGLE (surface)) - return CAIRO_INT_STATUS_UNSUPPORTED; - - render_color.red = color->red_short; - render_color.green = color->green_short; - render_color.blue = color->blue_short; - render_color.alpha = color->alpha_short; - - /* XXX: This XCBRECTANGLE cast is evil... it needs to go away somehow. */ - XCBRenderFillRectangles (surface->dpy, - _render_operator (operator), - surface->picture, - render_color, num_rects, (XCBRECTANGLE *) rects); - - return CAIRO_STATUS_SUCCESS; -} - -static cairo_int_status_t -_cairo_xcb_surface_composite_trapezoids (cairo_operator_t operator, - cairo_pattern_t *pattern, - void *abstract_dst, - int src_x, - int src_y, - int dst_x, - int dst_y, - unsigned int width, - unsigned int height, - cairo_trapezoid_t *traps, - int num_traps) -{ - cairo_surface_attributes_t attributes; - cairo_xcb_surface_t *dst = abstract_dst; - cairo_xcb_surface_t *src; - cairo_int_status_t status; - int render_reference_x, render_reference_y; - int render_src_x, render_src_y; - - if (!CAIRO_SURFACE_RENDER_HAS_TRAPEZOIDS (dst)) - return CAIRO_INT_STATUS_UNSUPPORTED; - - status = _cairo_pattern_acquire_surface (pattern, &dst->base, - src_x, src_y, width, height, - (cairo_surface_t **) &src, - &attributes); - if (status) - return status; - - if (traps[0].left.p1.y < traps[0].left.p2.y) { - render_reference_x = _cairo_fixed_integer_floor (traps[0].left.p1.x); - render_reference_y = _cairo_fixed_integer_floor (traps[0].left.p1.y); - } else { - render_reference_x = _cairo_fixed_integer_floor (traps[0].left.p2.x); - render_reference_y = _cairo_fixed_integer_floor (traps[0].left.p2.y); - } - - render_src_x = src_x + render_reference_x - dst_x; - render_src_y = src_y + render_reference_y - dst_y; - - /* XXX: The XTrapezoid cast is evil and needs to go away somehow. */ - /* XXX: format_from_cairo is slow. should cache something. */ - status = _cairo_xcb_surface_set_attributes (src, &attributes); - if (CAIRO_OK (status)) - XCBRenderTrapezoids (dst->dpy, - _render_operator (operator), - src->picture, dst->picture, - format_from_cairo (dst->dpy, CAIRO_FORMAT_A8), - render_src_x + attributes.x_offset, - render_src_y + attributes.y_offset, - num_traps, (XCBRenderTRAP *) traps); - - _cairo_pattern_release_surface (&dst->base, &src->base, &attributes); - - return status; -} - -static cairo_int_status_t -_cairo_xcb_surface_copy_page (void *abstract_surface) -{ - return CAIRO_INT_STATUS_UNSUPPORTED; -} - -static cairo_int_status_t -_cairo_xcb_surface_show_page (void *abstract_surface) -{ - return CAIRO_INT_STATUS_UNSUPPORTED; -} - -static cairo_int_status_t -_cairo_xcb_surface_set_clip_region (void *abstract_surface, - pixman_region16_t *region) -{ - /* FIXME */ - return CAIRO_INT_STATUS_UNSUPPORTED; -} - -static const cairo_surface_backend_t cairo_xcb_surface_backend = { - _cairo_xcb_surface_create_similar, - _cairo_xcb_surface_destroy, - _cairo_xcb_surface_pixels_per_inch, - _cairo_xcb_surface_acquire_source_image, - _cairo_xcb_surface_release_source_image, - _cairo_xcb_surface_acquire_dest_image, - _cairo_xcb_surface_release_dest_image, - _cairo_xcb_surface_clone_similar, - _cairo_xcb_surface_composite, - _cairo_xcb_surface_fill_rectangles, - _cairo_xcb_surface_composite_trapezoids, - _cairo_xcb_surface_copy_page, - _cairo_xcb_surface_show_page, - _cairo_xcb_surface_set_clip_region, - NULL /* show_glyphs */ -}; - -static void -query_render_version (XCBConnection *c, cairo_xcb_surface_t *surface) -{ - XCBRenderQueryVersionRep *r; - - surface->render_major = -1; - surface->render_minor = -1; - - if (!XCBRenderInit(c)) - return; - - r = XCBRenderQueryVersionReply(c, XCBRenderQueryVersion(c, 0, 6), 0); - if (!r) - return; - - surface->render_major = r->major_version; - surface->render_minor = r->minor_version; - free(r); -} - -cairo_surface_t * -cairo_xcb_surface_create (XCBConnection *dpy, - XCBDRAWABLE drawable, - XCBVISUALTYPE *visual, - cairo_format_t format) -{ - cairo_xcb_surface_t *surface; - - surface = malloc (sizeof (cairo_xcb_surface_t)); - if (surface == NULL) - return NULL; - - _cairo_surface_init (&surface->base, &cairo_xcb_surface_backend); - - surface->dpy = dpy; - surface->gc.xid = 0; - surface->drawable = drawable; - surface->owns_pixmap = 0; - surface->visual = visual; - surface->format = format; - - query_render_version(dpy, surface); - - if (CAIRO_SURFACE_RENDER_HAS_CREATE_PICTURE (surface)) - { - XCBRenderPICTFORMAT fmt; - if(visual) - fmt = format_from_visual (dpy, visual->visual_id); - else - fmt = format_from_cairo (dpy, format); - surface->picture = XCBRenderPICTURENew(dpy); - XCBRenderCreatePicture (dpy, surface->picture, drawable, - fmt, 0, NULL); - } - else - surface->picture.xid = 0; - - return (cairo_surface_t *) surface; -} |