121 lines
3.3 KiB
C
121 lines
3.3 KiB
C
/*
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* Copyright © 2009 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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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
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Eric Anholt <eric@anholt.net>
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*
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include "glamor_priv.h"
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void
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glamor_set_spans(DrawablePtr drawable, GCPtr gc, char *src,
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DDXPointPtr points, int *widths, int n, int sorted)
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{
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PixmapPtr dest_pixmap = glamor_get_drawable_pixmap(drawable);
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GLenum format, type;
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uint8_t *temp_src = NULL, *drawpixels_src = (uint8_t *)src;
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int i, j;
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int wmax = 0;
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RegionPtr clip = fbGetCompositeClip(gc);
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BoxRec *pbox;
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for (i = 0 ; i < n; i++) {
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if (wmax < widths[i])
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wmax = widths[i];
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}
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switch (drawable->depth) {
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case 1:
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temp_src = xalloc(wmax);
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format = GL_ALPHA;
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type = GL_UNSIGNED_BYTE;
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drawpixels_src = temp_src;
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break;
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case 8:
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format = GL_ALPHA;
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type = GL_UNSIGNED_BYTE;
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break;
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case 24:
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format = GL_RGB;
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type = GL_UNSIGNED_BYTE;
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break;
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case 32:
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format = GL_BGRA;
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type = GL_UNSIGNED_INT_8_8_8_8_REV;
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break;
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default:
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ErrorF("Unknown setspans depth %d\n", drawable->depth);
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return;
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}
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if (!glamor_set_destination_pixmap(dest_pixmap))
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goto fail;
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if (!glamor_set_planemask(dest_pixmap, gc->planemask))
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goto fail;
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glamor_set_alu(gc->alu);
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if (!glamor_set_planemask(dest_pixmap, gc->planemask))
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goto fail;
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for (i = 0; i < n; i++) {
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if (temp_src) {
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for (j = 0; j < widths[i]; j++) {
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if (src[j / 8] & (1 << (j % 8)))
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temp_src[j] = 0xff;
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else
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temp_src[j] = 0;
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}
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}
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n = REGION_NUM_RECTS(clip);
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pbox = REGION_RECTS(clip);
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while (n--) {
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if (pbox->y1 > points[i].y)
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break;
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glScissor(pbox->x1,
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points[i].y - dest_pixmap->screen_y,
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pbox->x2 - pbox->x1,
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1);
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glEnable(GL_SCISSOR_TEST);
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glRasterPos2i(points[i].x - dest_pixmap->screen_x,
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points[i].y - dest_pixmap->screen_y);
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glDrawPixels(widths[i],
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1,
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format, type,
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drawpixels_src);
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}
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if (temp_src) {
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src += PixmapBytePad(widths[i], drawable->depth);
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} else {
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drawpixels_src += PixmapBytePad(widths[i], drawable->depth);
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}
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}
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fail:
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glDisable(GL_SCISSOR_TEST);
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glamor_set_planemask(dest_pixmap, ~0);
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glamor_set_alu(GXcopy);
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xfree(temp_src);
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}
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