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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.
- */
-
- #ifdef TRYTEST
- #include "natFastTrianglesDBn.c"
- #include "natFastTrianglesDB.c"
- #endif
-
- /**********************************************************************/
- /***** Accelerated point, line, polygon rendering *****/
- /**********************************************************************/
-
- /*
- * Draw a filled polygon of a single color. If there is hardware/OS support
- * for polygon drawing use that here. Otherwise, call a function in
- * polygon.c to do the drawing.
- */
-
- void natFastTriangleFunction(GLcontext * ctx, GLuint v0, GLuint v1, GLuint v2, GLuint pv)
- {
- amigaMesaContext amesa;
- struct RastPort *rp;
- struct vertex_buffer *VB;
- int x, y;
-
- amesa = (amigaMesaContext) ctx->DriverCtx;
- VB = ctx->VB;
- rp = amesa->rp;
-
- DEBUGOUT(1, "natFastLineFunction\n");
-
- if (!TstF(amesa->visual->flags, VISUAL_RGBMODE))
- SetAPen(rp, GetRGBP(amesa, VB->IndexPtr->data[pv]));
- else
- SetAPen(rp, PL_RGBA(amesa, VB->ColorPtr->data[pv][0], VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2], 0, 0));
-
- x = FIXx((int)(VB->Win.data[v0][0]));
- y = FIXy((int)(VB->Win.data[v0][1]));
- DEBUGOUT(8, " AreaMove(%d, %d)\n", x, y);
- AreaMove(rp, x, y);
-
- x = FIXx((int)(VB->Win.data[v1][0]));
- y = FIXy((int)(VB->Win.data[v1][1]));
- DEBUGOUT(8, " AreaDraw(%d, %d)\n", x, y);
- AreaDraw(rp, x, y);
-
- x = FIXx((int)(VB->Win.data[v2][0]));
- y = FIXy((int)(VB->Win.data[v2][1]));
- DEBUGOUT(8, " AreaDraw(%d, %d)\n", x, y);
- AreaDraw(rp, x, y);
-
- AreaEnd(rp);
- }
-
- triangle_func natChooseTriangleFunction(GLcontext * ctx)
- {
- /*
- * Examine the current rendering state and return a pointer to a
- * fast polygon-rendering function if possible.
- */
-
- DEBUGOUT(1, "natChooseTriangleFunction()\n");
-
- if (!IS_DITHER((amigaMesaContext) ctx->DriverCtx) &&
- (ctx->Line.Width == 1.0) &&
- (!ctx->Line.SmoothFlag) &&
- (!ctx->Line.StippleFlag) &&
- (ctx->Light.ShadeModel == GL_FLAT) &&
- (ctx->RasterMask == 0) && /* what means rastermask really? */
- (!ctx->Texture.Enabled))
- return natFastTriangleFunction;
- #ifdef TRYTEST
- if (preset.tryTest)
- return test_natChooseTriangleFunction(ctx);
- #endif
-
- #if 0
- DEBUGOUT(0, "Line.Width = %g\nLine.SmoothFlag = %d\nLine.StippleFlag = %d\nLight.ShadeModel = %x\nRasterMask = %x\nTexture.Enabled = %d\n",
- ctx->Line.Width, ctx->Line.SmoothFlag, ctx->Line.StippleFlag, ctx->Light.ShadeModel, ctx->RasterMask, ctx->Texture.Enabled);
- #endif
-
- return NULL;
- }
-
- triangle_func natChooseTriangleFunctionDB(GLcontext * ctx)
- {
- DEBUGOUT(1, "natChooseTriangleFunctionDB()\n");
-
- #ifdef TRYTEST
- if (preset.tryTest)
- return test_natChooseTriangleFunctionDB(ctx);
- #endif
-
- return NULL;
- }
-
- void natFastQuadFunction(GLcontext * ctx, GLuint v0, GLuint v1, GLuint v2, GLuint v3, GLuint pv)
- {
- amigaMesaContext amesa;
- struct RastPort *rp;
- struct vertex_buffer *VB;
- int x, y;
-
- amesa = (amigaMesaContext) ctx->DriverCtx;
- VB = ctx->VB;
- rp = amesa->rp;
-
- DEBUGOUT(1, "natFastQuadFunction\n");
-
- if (!TstF(amesa->visual->flags, VISUAL_RGBMODE))
- SetAPen(rp, GetRGBP(amesa, VB->IndexPtr->data[pv]));
- else
- SetAPen(rp, PL_RGBA(amesa, VB->ColorPtr->data[pv][0], VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2], 0, 0));
-
- x = FIXx((int)(VB->Win.data[v0][0]));
- y = FIXy((int)(VB->Win.data[v0][1]));
- DEBUGOUT(8, " AreaMove(%d, %d)\n", x, y);
- AreaMove(rp, x, y);
-
- x = FIXx((int)(VB->Win.data[v1][0]));
- y = FIXy((int)(VB->Win.data[v1][1]));
- DEBUGOUT(8, " AreaDraw(%d, %d)\n", x, y);
- AreaDraw(rp, x, y);
-
- x = FIXx((int)(VB->Win.data[v2][0]));
- y = FIXy((int)(VB->Win.data[v2][1]));
- DEBUGOUT(8, " AreaDraw(%d, %d)\n", x, y);
- AreaDraw(rp, x, y);
-
- x = FIXx((int)(VB->Win.data[v3][0]));
- y = FIXy((int)(VB->Win.data[v3][1]));
- DEBUGOUT(8, " AreaDraw(%d, %d)\n", x, y);
- AreaDraw(rp, x, y);
-
- AreaEnd(rp);
- }
-
- quad_func natChooseQuadFunction(GLcontext * ctx)
- {
- /*
- * Examine the current rendering state and return a pointer to a
- * fast polygon-rendering function if possible.
- */
-
- DEBUGOUT(1, "natChooseQuadFunction()\n");
-
- if (!IS_DITHER((amigaMesaContext) ctx->DriverCtx) &&
- (ctx->Line.Width == 1.0) &&
- (!ctx->Line.SmoothFlag) &&
- (!ctx->Line.StippleFlag) &&
- (ctx->Light.ShadeModel == GL_FLAT) &&
- (ctx->RasterMask == 0) && /* what means rastermask really? */
- (!ctx->Texture.Enabled))
- return natFastQuadFunction;
- #ifdef TRYTEST
- if (preset.tryTest)
- return test_natChooseQuadFunction(ctx);
- #endif
-
- #if 0
- DEBUGOUT(0, "Line.Width = %g\nLine.SmoothFlag = %d\nLine.StippleFlag = %d\nLight.ShadeModel = %x\nRasterMask = %x\nTexture.Enabled = %d\n",
- ctx->Line.Width, ctx->Line.SmoothFlag, ctx->Line.StippleFlag, ctx->Light.ShadeModel, ctx->RasterMask, ctx->Texture.Enabled);
- #endif
-
- return NULL;
- }
-
- quad_func natChooseQuadFunctionDB(GLcontext * ctx)
- {
- DEBUGOUT(1, "natChooseQuadFunctionDB()\n");
-
- #ifdef TRYTEST
- if (preset.tryTest)
- return test_natChooseQuadFunctionDB(ctx);
- #endif
-
- return NULL;
- }
-
- void natFastRectFunction(GLcontext * ctx, GLint x, GLint y, GLint width, GLint height)
- {
- amigaMesaContext amesa;
- struct RastPort *rp;
-
- amesa = (amigaMesaContext) ctx->DriverCtx;
-
- DEBUGOUT(1, "natFastRectFunction()\n");
-
- SetAPen(amesa->rp, amesa->pixel);
- RectFill(amesa->rp, FIXx(x),
- FIXy(y) - height,
- FIXx(x) + width - 1,
- FIXy(y) - 1);
- }
-
- rect_func natChooseRectFunction(GLcontext * ctx)
- {
- /*
- * Examine the current rendering state and return a pointer to a
- * fast polygon-rendering function if possible.
- */
-
- DEBUGOUT(1, "natChooseRectFunction()\n");
-
- if (!IS_DITHER((amigaMesaContext) ctx->DriverCtx) &&
- (ctx->Line.Width == 1.0) &&
- (!ctx->Line.SmoothFlag) &&
- (!ctx->Line.StippleFlag) &&
- (ctx->Light.ShadeModel == GL_FLAT) &&
- (ctx->RasterMask == 0) && /* what means rastermask really? */
- (!ctx->Texture.Enabled))
- return natFastRectFunction;
- #ifdef TRYTEST
- if (preset.tryTest)
- return test_natChooseRectFunction(ctx);
- #endif
-
- #if 0
- DEBUGOUT(0, "Line.Width = %g\nLine.SmoothFlag = %d\nLine.StippleFlag = %d\nLight.ShadeModel = %x\nRasterMask = %x\nTexture.Enabled = %d\n",
- ctx->Line.Width, ctx->Line.SmoothFlag, ctx->Line.StippleFlag, ctx->Light.ShadeModel, ctx->RasterMask, ctx->Texture.Enabled);
- #endif
-
- return NULL;
- }
-
- rect_func natChooseRectFunctionDB(GLcontext * ctx)
- {
- DEBUGOUT(1, "natChooseRectFunctionDB()\n");
-
- #ifdef TRYTEST
- if (preset.tryTest)
- return test_natChooseRectFunctionDB(ctx);
- #endif
-
- return NULL;
- }
-