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5b4c8afa7e
* gdk/gdktypes.h: Add new type GdkSpan * docs/reference/gdk/gdk-sections.txt, docs/reference/gdk/tmpl/regions.sgml, gdk/gdkregion-generic.c, gdk/gdkregion.h: Implement and document gdk_region_spans_intersect_foreach. * gdk/linux-fb/Makefile.am, gdk/linux-fb/gdkrender-fb.c: Add new file gdkrender-fb.c which contains all core rendering code. Add gdk_fb_fill_rectangle_generic (old rectangle code) and gdk_fb_fill_rectangle_simple_16, gdk_fb_fill_rectangle_simple_32 (optimized rectangle fillers). * gdk/linux-fb/gdkdrawable-fb2.c: Move all rendering code to gdkrender-fb.c. Change from using GdkRectangles and GdkSegments for spans to GdkSpan. Use the new span intersection functions in gdk_fb_fill_spans. gdk_fb_draw_rectangle() clips filled rectangles and calls gc->fill_rectangle with the result. gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/gdkevents-fb.c: Remove unused includes and defines. New function gdk_fb_get_time() to get correct time for events. * gdk/linux-fb/gdkinput-ps2.c: Use gdk method of generating multiple-clicks (gdk_event_button_generate) Make sure to set the time of all events. * gdk/linux-fb/gdkmain-fb.c: Use gdk_fb_get_time (). * gdk/linux-fb/gdkprivate-fb.h: New virtual GC calls: fill_span & fill_rectangle. Export gdk_fb_get_time(). gdk_fb_fill_spans() gets extra argument "sorted". * gdk/linux-fb/mi*.c: Use GdkSpan instead of GdkRectangle. Pass correct sorted to gdk_fb_fill_spans. (sorted value taken from XFree 4 source)
128 lines
3.9 KiB
C
128 lines
3.9 KiB
C
/***********************************************************
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Copyright 1989, 1998 The Open Group
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All Rights Reserved.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Copyright 1989 by Digital Equipment Corporation, Maynard, Massachusetts.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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******************************************************************/
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/* $TOG: mispans.h /main/5 1998/02/09 14:48:48 kaleb $ */
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typedef struct {
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int count; /* number of spans */
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GdkSpan* points; /* pointer to list of start points */
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} Spans;
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typedef struct {
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int size; /* Total number of *Spans allocated */
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int count; /* Number of *Spans actually in group */
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Spans *group; /* List of Spans */
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int ymin, ymax; /* Min, max y values encountered */
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} SpanGroup;
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/* Initialize SpanGroup. MUST BE DONE before use. */
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extern void miInitSpanGroup(
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#if NeedFunctionPrototypes
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SpanGroup * /*spanGroup*/
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#endif
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);
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/* Add a Spans to a SpanGroup. The spans MUST BE in y-sorted order */
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extern void miAppendSpans(
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#if NeedFunctionPrototypes
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SpanGroup * /*spanGroup*/,
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SpanGroup * /*otherGroup*/,
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Spans * /*spans*/
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#endif
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);
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/* Paint a span group, possibly with some overlap */
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extern void miFillSpanGroup(
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#if NeedFunctionPrototypes
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GdkDrawable* /*pDraw*/,
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GdkGC* /*pGC*/,
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SpanGroup * /*spanGroup*/
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#endif
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);
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/* Paint a span group, insuring that each pixel is painted at most once */
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extern void miFillUniqueSpanGroup(
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#if NeedFunctionPrototypes
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GdkDrawable* /*pDraw*/,
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GdkGC* /*pGC*/,
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SpanGroup * /*spanGroup*/
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#endif
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);
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/* Free up data in a span group. MUST BE DONE or you'll suffer memory leaks */
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extern void miFreeSpanGroup(
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#if NeedFunctionPrototypes
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SpanGroup * /*spanGroup*/
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#endif
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);
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extern void miSubtractSpans(
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#if NeedFunctionPrototypes
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SpanGroup * /*spanGroup*/,
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Spans * /*sub*/
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#endif
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);
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extern void miDisposeSpanGroup(
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#if NeedFunctionPrototypes
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SpanGroup * /*spanGroup*/
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#endif
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);
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extern int miClipSpans(
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#if NeedFunctionPrototypes
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GdkRegion* /*prgnDst*/,
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GdkPoint* /*ppt*/,
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int * /*pwidth*/,
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int /*nspans*/,
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GdkPoint* /*pptNew*/,
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int * /*pwidthNew*/,
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int /*fSorted*/
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#endif
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);
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/* Rops which must use span groups */
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#define miSpansCarefulRop(rop) (((rop) & 0xc) == 0x8 || ((rop) & 0x3) == 0x2)
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#define miSpansEasyRop(rop) (!miSpansCarefulRop(rop))
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