289 lines
7.4 KiB
C
289 lines
7.4 KiB
C
/*
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* Copyright © 2001 Keith Packard
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* Copyright © 2008 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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/** @file glamor_core.c
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*
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* This file covers core X rendering in glamor.
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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 <stdlib.h>
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#include "glamor_priv.h"
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static void
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glamor_set_color_from_fgpixel(PixmapPtr pixmap, unsigned long fg_pixel)
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{
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glColor4ub((fg_pixel >> 16) & 0xff,
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(fg_pixel >> 8) & 0xff,
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(fg_pixel) & 0xff,
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(fg_pixel >> 24) & 0xff);
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}
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static Bool
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glamor_set_destination_pixmap(PixmapPtr pixmap)
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{
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ScreenPtr screen = pixmap->drawable.pScreen;
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PixmapPtr screen_pixmap = screen->GetScreenPixmap(screen);
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if (pixmap != screen_pixmap) {
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ErrorF("stubbed drawing to non-screen pixmap\n");
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return FALSE;
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}
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glViewport(0, 0,
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screen_pixmap->drawable.width,
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screen_pixmap->drawable.height);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glOrtho(0, screen_pixmap->drawable.width,
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0, screen_pixmap->drawable.height,
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-1.0, 1.0);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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return TRUE;
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}
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void
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glamor_solid(PixmapPtr pixmap, int x, int y, int width, int height,
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unsigned char alu, unsigned long planemask, unsigned long fg_pixel)
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{
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int x1 = x;
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int x2 = x + width;
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int y1 = y;
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int y2 = y + height;
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if (!glamor_set_destination_pixmap(pixmap))
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return;
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glamor_set_color_from_fgpixel(pixmap, fg_pixel);
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glBegin(GL_TRIANGLE_FAN);
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glVertex2f(x1, y1);
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glVertex2f(x1, y2);
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glVertex2f(x2, y2);
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glVertex2f(x2, y1);
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glEnd();
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}
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void
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glamor_stipple(PixmapPtr pixmap, PixmapPtr stipple,
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int x, int y, int width, int height,
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unsigned char alu, unsigned long planemask,
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unsigned long fg_pixel, unsigned long bg_pixel,
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int stipple_x, int stipple_y)
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{
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ErrorF("stubbed out stipple\n");
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}
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void
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glamor_tile(PixmapPtr pixmap, PixmapPtr tile,
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int x, int y, int width, int height,
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unsigned char alu, unsigned long planemask,
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int tile_x, int tile_y)
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{
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ErrorF("stubbed out tile\n");
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}
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static void
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glamor_put_image(DrawablePtr drawable, GCPtr gc, int depth, int x, int y,
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int w, int h, int leftPad, int format, char *bits)
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{
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ScreenPtr screen = drawable->pScreen;
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PixmapPtr screen_pixmap = screen->GetScreenPixmap(screen);
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PixmapPtr dest_pixmap = glamor_get_drawable_pixmap(drawable);
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if (screen_pixmap != dest_pixmap) {
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fbPutImage(drawable, gc, depth, x, y, w, h, leftPad, format, bits);
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} else {
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ErrorF("stub put_image\n");
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}
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}
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static 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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ScreenPtr screen = drawable->pScreen;
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PixmapPtr screen_pixmap = screen->GetScreenPixmap(screen);
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PixmapPtr dest_pixmap = glamor_get_drawable_pixmap(drawable);
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if (screen_pixmap != dest_pixmap) {
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fbSetSpans(drawable, gc, src, points, widths, n, sorted);
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} else {
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int i;
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if (!glamor_set_destination_pixmap(dest_pixmap))
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return;
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for (i = 0; i < n; i++) {
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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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GL_RGBA, GL_UNSIGNED_BYTE,
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src);
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src += PixmapBytePad(widths[i], drawable->depth);
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}
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}
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}
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/**
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* glamor_poly_lines() checks if it can accelerate the lines as a group of
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* horizontal or vertical lines (rectangles), and uses existing rectangle fill
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* acceleration if so.
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*/
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static void
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glamor_poly_lines(DrawablePtr drawable, GCPtr gc, int mode, int n,
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DDXPointPtr points)
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{
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ScreenPtr screen = drawable->pScreen;
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PixmapPtr screen_pixmap = screen->GetScreenPixmap(screen);
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PixmapPtr dest_pixmap = glamor_get_drawable_pixmap(drawable);
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xRectangle *rects;
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int x1, x2, y1, y2;
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int i;
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/* Don't try to do wide lines or non-solid fill style. */
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if (gc->lineWidth != 0 || gc->lineStyle != LineSolid ||
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gc->fillStyle != FillSolid) {
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if (dest_pixmap != screen_pixmap)
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fbPolyLine(drawable, gc, mode, n, points);
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else
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ErrorF("stub poly_line\n");
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return;
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}
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rects = xalloc(sizeof(xRectangle) * (n - 1));
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x1 = points[0].x;
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y1 = points[0].y;
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/* If we have any non-horizontal/vertical, fall back. */
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for (i = 0; i < n - 1; i++) {
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if (mode == CoordModePrevious) {
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x2 = x1 + points[i + 1].x;
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y2 = y1 + points[i + 1].y;
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} else {
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x2 = points[i + 1].x;
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y2 = points[i + 1].y;
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}
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if (x1 != x2 && y1 != y2) {
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xfree(rects);
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if (dest_pixmap != screen_pixmap)
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fbPolyLine(drawable, gc, mode, n, points);
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else
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ErrorF("stub poly_line\n");
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return;
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}
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if (x1 < x2) {
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rects[i].x = x1;
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rects[i].width = x2 - x1 + 1;
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} else {
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rects[i].x = x2;
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rects[i].width = x1 - x2 + 1;
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}
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if (y1 < y2) {
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rects[i].y = y1;
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rects[i].height = y2 - y1 + 1;
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} else {
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rects[i].y = y2;
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rects[i].height = y1 - y2 + 1;
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}
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x1 = x2;
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y1 = y2;
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}
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gc->ops->PolyFillRect(drawable, gc, n - 1, rects);
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xfree(rects);
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}
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GCOps glamor_gc_ops = {
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.FillSpans = glamor_fill_spans,
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.SetSpans = glamor_set_spans,
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.PutImage = glamor_put_image,
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.CopyArea = miCopyArea,
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.CopyPlane = miCopyPlane,
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.PolyPoint = miPolyPoint,
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.Polylines = glamor_poly_lines,
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.PolySegment = miPolySegment,
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.PolyRectangle = miPolyRectangle,
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.PolyArc = miPolyArc,
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.FillPolygon = miFillPolygon,
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.PolyFillRect = miPolyFillRect,
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.PolyFillArc = miPolyFillArc,
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.PolyText8 = miPolyText8,
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.PolyText16 = miPolyText16,
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.ImageText8 = miImageText8,
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.ImageText16 = miImageText16,
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.ImageGlyphBlt = miImageGlyphBlt,
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.PolyGlyphBlt = miPolyGlyphBlt,
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.PushPixels = miPushPixels,
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};
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/**
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* exaValidateGC() sets the ops to EXA's implementations, which may be
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* accelerated or may sync the card and fall back to fb.
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*/
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static void
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glamor_validate_gc(GCPtr gc, unsigned long changes, DrawablePtr drawable)
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{
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fbValidateGC(gc, changes, drawable);
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gc->ops = &glamor_gc_ops;
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}
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static GCFuncs glamor_gc_funcs = {
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glamor_validate_gc,
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miChangeGC,
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miCopyGC,
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miDestroyGC,
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miChangeClip,
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miDestroyClip,
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miCopyClip
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};
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/**
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* exaCreateGC makes a new GC and hooks up its funcs handler, so that
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* exaValidateGC() will get called.
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*/
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int
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glamor_create_gc(GCPtr gc)
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{
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if (!fbCreateGC(gc))
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return FALSE;
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gc->funcs = &glamor_gc_funcs;
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return TRUE;
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}
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