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- /*
- * $Id: $
- */
-
- /*
- * Mesa 3-D graphics library
- * Version: 3.1
- * Copyright (C) 1995 Brian Paul (brianp@ssec.wisc.edu)
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- /**********************************************************************/
- /***** Accelerated point, line, polygon rendering *****/
- /**********************************************************************/
-
- void natFastPointsFunction(GLcontext * ctx, GLuint first, GLuint last)
- {
- amigaMesaContext amesa;
- struct vertex_buffer *VB;
- struct RastPort *rp;
- GLubyte *mask;
- GLshort i;
-
- amesa = (amigaMesaContext) ctx->DriverCtx;
- VB = ctx->VB;
- rp = amesa->rp;
-
- DEBUGOUT(1, "natFastPointsFunction: ");
-
- mask = VB->ClipMask;
- if (!(amesa->visual->flags & VISUAL_RGBMODE)) {
- GLuint *ItoP = amesa->ItoP;
-
- DEBUGOUT(1, "VB.IndexColor\n");
- for (i = first; i <= last; i++) {
- if (!*mask++) {
- int x, y;
-
- x = FIXx((GLint) (VB->Win.data[i][0]));
- y = FIXy((GLint) (VB->Win.data[i][1]));
-
- SetAPen(rp, GetRGBPLocal(VB->IndexPtr->data[i]));
- DEBUGOUT(9, " WritePixel(%d, %d)\n", x, y);
- WritePixel(rp, x, y);
- }
- }
- }
- else if (IS_SHIFT(amesa->trueColor)) {
- DEBUGOUT(1, "VB.RGBColor 332shift\n");
- for (i = first; i <= last; i++) {
- if (!*mask++) {
- int x, y;
-
- x = FIXx((GLint) (VB->Win.data[i][0]));
- y = FIXy((GLint) (VB->Win.data[i][1]));
-
- SetAPen(rp, PL8_RGBA(amesa, VB->ColorPtr->data[i][0], VB->ColorPtr->data[i][1], VB->ColorPtr->data[i][2]));
- DEBUGOUT(9, " WritePixel(%d, %d)\n", x, y);
- WritePixel(rp, x, y);
- }
- }
- }
- else if (IS_MATCH(amesa->trueColor)) {
- DEBUGOUT(1, "VB.RGBColor GetPen\n");
- for (i = first; i <= last; i++) {
- if (!*mask++) {
- int x, y;
-
- x = FIXx((GLint) (VB->Win.data[i][0]));
- y = FIXy((GLint) (VB->Win.data[i][1]));
-
- SetAPen(rp, PLG_RGBA(amesa, VB->ColorPtr->data[i][0], VB->ColorPtr->data[i][1], VB->ColorPtr->data[i][2]));
- DEBUGOUT(9, " WritePixel(%d, %d)\n", x, y);
- WritePixel(rp, x, y);
- }
- }
- }
- else {
- DEBUGOUT(1, "VB.RGBColor 332shift\n");
- for (i = first; i <= last; i++) {
- if (!*mask++) {
- int x, y;
-
- x = FIXx((GLint) (VB->Win.data[i][0]));
- y = FIXy((GLint) (VB->Win.data[i][1]));
-
- SetAPen(rp, PLD_RGBA(amesa, VB->ColorPtr->data[i][0], VB->ColorPtr->data[i][1], VB->ColorPtr->data[i][2], x, y));
- DEBUGOUT(9, " WritePixel(%d, %d)\n", x, y);
- WritePixel(rp, x, y);
- }
- }
- }
- }
-
- points_func natChoosePointsFunction(GLcontext * ctx)
- {
- /*
- * Examine the current rendering state and return a pointer to a
- * fast point-rendering function if possible.
- */
-
- DEBUGOUT(1, "natChoosePointsFunction()\n");
-
- if ((ctx->Point.Size == 1.0) &&
- (!ctx->Point.SmoothFlag) &&
- (ctx->RasterMask == 0) && /* what means rastermask really? */
- (!ctx->Texture.Enabled))
- return natFastPointsFunction;
-
- return NULL;
- }
-
- points_func natChoosePointsFunctionDB(GLcontext * ctx)
- {
- DEBUGOUT(1, "natChoosePointsFunctionDB()\n");
-
- return NULL;
- }
-