Remote changes at Mon Aug 7 16:22:11 EDT 2017 by chuan on vivaldi
This commit is contained in:
Chuan Chen
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/* grTOGL2.c -
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*
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* Copyright 2003 Open Circuit Design, Inc., for MultiGiG Ltd.
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*
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* This file contains additional functions to manipulate an X
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* color display. Included here are rectangle drawing and color map
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* loading.
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*/
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#include <stdio.h>
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char *getenv();
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#include <GL/gl.h>
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#include <GL/glx.h>
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#include "tcltk/tclmagic.h"
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#include "utils/magic.h"
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#include "textio/textio.h"
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#include "utils/geometry.h"
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#include "graphics/glyphs.h"
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#include "windows/windows.h"
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#include "graphics/graphics.h"
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#include "graphics/graphicsInt.h"
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#include "grTOGLInt.h"
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extern char *DBWStyleType;
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extern GLXContext grXcontext;
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extern Display *grXdpy;
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/*---------------------------------------------------------
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* GrOGLSetCMap --
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*
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* OpenGL uses RGB values as read from the colormap file,
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* directly, so there is no need to install colors into a
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* colormap. Therefore, this is a null routine.
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*
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* Results: None.
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*
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* Side Effects: None.
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*
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*---------------------------------------------------------
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*/
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void
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GrTOGLSetCMap ()
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{
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}
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Rect grtoglLines[TOGL_BATCH_SIZE];
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int grtoglNbLines = 0;
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TOGLRect grtoglRects[TOGL_BATCH_SIZE];
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int grtoglNbRects = 0;
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Rect grtoglDiagonal[TOGL_BATCH_SIZE];
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int grtoglNbDiagonal = 0;
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/*---------------------------------------------------------
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* grtoglDrawLines:
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* This routine draws a batch of lines.
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*
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* Results: None.
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*
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* Side Effects:
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* Draw a bunch of lines.
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*---------------------------------------------------------
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*/
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void
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grtoglDrawLines(lines, nb)
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Rect lines[];
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int nb;
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{
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#ifdef OGL_SERVER_SIDE_ONLY
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int i;
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glBegin(GL_LINES);
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for (i = 0; i < nb; i++)
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{
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glVertex2i(lines[i].r_ll.p_x, lines[i].r_ll.p_y);
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glVertex2i(lines[i].r_ur.p_x, lines[i].r_ur.p_y);
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}
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glEnd();
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#else
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glVertexPointer(2, GL_INT, 0, (GLvoid *)lines);
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glDrawArrays(GL_LINES, 0, nb << 1);
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#endif
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}
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/*---------------------------------------------------------
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* grtoglDrawLine:
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* This routine draws a line.
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*
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* Results: None.
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*
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* Side Effects:
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* Draw a line for (x1, y1) to (x2, y2) inclusive.
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*---------------------------------------------------------
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*/
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void
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grtoglDrawLine (x1, y1, x2, y2)
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int x1, y1; /* Screen coordinates of first point. */
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int x2, y2; /* Screen coordinates of second point. */
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{
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/* Treat straight and diagonal lines separately. Some */
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/* implementations of OpenGL make straight lines twice as thick */
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/* when smoothing is enabled. */
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if ((x1 == x2) || (y1 == y2))
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{
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if (grtoglNbLines == TOGL_BATCH_SIZE) GR_TOGL_FLUSH_LINES();
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grtoglLines[grtoglNbLines].r_ll.p_x = x1;
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grtoglLines[grtoglNbLines].r_ll.p_y = y1;
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grtoglLines[grtoglNbLines].r_ur.p_x = x2;
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grtoglLines[grtoglNbLines].r_ur.p_y = y2;
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grtoglNbLines++;
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}
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else
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{
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if (grtoglNbDiagonal == TOGL_BATCH_SIZE) GR_TOGL_FLUSH_DIAGONAL();
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grtoglDiagonal[grtoglNbDiagonal].r_ll.p_x = x1;
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grtoglDiagonal[grtoglNbDiagonal].r_ll.p_y = y1;
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grtoglDiagonal[grtoglNbDiagonal].r_ur.p_x = x2;
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grtoglDiagonal[grtoglNbDiagonal].r_ur.p_y = y2;
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grtoglNbDiagonal++;
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}
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}
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/*---------------------------------------------------------
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* grtoglFillRects:
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* This routine draws a bunch of solid rectangles.
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*
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* Results: None.
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*
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* Side Effects:
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* Drawing.
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*---------------------------------------------------------
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*/
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void
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grtoglFillRects(rects, nb)
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TOGLRect rects[];
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int nb;
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{
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#ifdef OGL_SERVER_SIDE_ONLY
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int i;
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for (i = 0; i < nb; i++)
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{
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glRecti(rects[i].r_ll.p_x, rects[i].r_ll.p_y,
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rects[i].r_ur.p_x, rects[i].r_ur.p_y);
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}
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#else
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glVertexPointer(2, GL_INT, 0, (GLvoid *)rects);
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glDrawArrays(GL_QUADS, 0, nb << 2);
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#endif
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}
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/*---------------------------------------------------------
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* grtoglFillRect:
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* This routine draws a solid rectangle.
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*
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* Results: None.
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*
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* Side Effects:
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* Drawing.
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*---------------------------------------------------------
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*/
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void
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grtoglFillRect(r)
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Rect *r; /* Address of a rectangle in screen
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* coordinates.
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*/
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{
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if (grtoglNbRects == TOGL_BATCH_SIZE) GR_TOGL_FLUSH_RECTS();
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grtoglRects[grtoglNbRects].r_ll.p_x = r->r_ll.p_x;
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grtoglRects[grtoglNbRects].r_ll.p_y = r->r_ll.p_y;
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grtoglRects[grtoglNbRects].r_ur.p_x = r->r_ur.p_x;
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grtoglRects[grtoglNbRects].r_ur.p_y = r->r_ur.p_y;
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#ifndef OGL_SERVER_SIDE_ONLY
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grtoglRects[grtoglNbRects].r_ul.p_x = r->r_ll.p_x;
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grtoglRects[grtoglNbRects].r_ul.p_y = r->r_ur.p_y;
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grtoglRects[grtoglNbRects].r_lr.p_x = r->r_ur.p_x;
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grtoglRects[grtoglNbRects].r_lr.p_y = r->r_ll.p_y;
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#endif
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grtoglNbRects++;
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}
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/*---------------------------------------------------------
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* grtoglFillPolygon:
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* This routine draws a solid (convex) polygon
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*
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* Results: None.
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*
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* Side Effects:
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* Drawing.
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*---------------------------------------------------------
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*/
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void
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grtoglFillPolygon(tp, np)
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Point *tp;
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int np;
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{
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int i;
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glEnable(GL_POLYGON_SMOOTH);
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glBegin(GL_POLYGON);
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for (i = 0; i < np; i++)
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glVertex2i(tp[i].p_x, tp[i].p_y);
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glEnd();
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glDisable(GL_POLYGON_SMOOTH);
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}
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