svn merge ^/branches/released . --username marha

1 files changed, 508 insertions, 0 deletions

diff --git a/mesalib/src/mesa/main/rastpos.c b/mesalib/src/mesa/main/rastpos.c
new file mode 100644
index 000000000..9f309d6ab
--- /dev/null
+++ b/mesalib/src/mesa/main/rastpos.c
@@ -0,0 +1,508 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  6.5.3
+ *
+ * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file rastpos.c
+ * Raster position operations.
+ */
+
+#include "glheader.h"
+#include "context.h"
+#include "feedback.h"
+#include "macros.h"
+#include "rastpos.h"
+#include "state.h"
+
+
+/**
+ * Helper function for all the RasterPos functions.
+ */
+static void
+rasterpos(GLfloat x, GLfloat y, GLfloat z, GLfloat w)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLfloat p[4];
+
+   p[0] = x;
+   p[1] = y;
+   p[2] = z;
+   p[3] = w;
+
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+   FLUSH_CURRENT(ctx, 0);
+
+   if (ctx->NewState)
+      _mesa_update_state( ctx );
+
+   ctx->Driver.RasterPos(ctx, p);
+}
+
+
+void GLAPIENTRY
+_mesa_RasterPos2d(GLdouble x, GLdouble y)
+{
+   rasterpos((GLfloat)x, (GLfloat)y, (GLfloat)0.0, (GLfloat)1.0);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos2f(GLfloat x, GLfloat y)
+{
+   rasterpos(x, y, 0.0F, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos2i(GLint x, GLint y)
+{
+   rasterpos((GLfloat) x, (GLfloat) y, 0.0F, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos2s(GLshort x, GLshort y)
+{
+   rasterpos(x, y, 0.0F, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos3d(GLdouble x, GLdouble y, GLdouble z)
+{
+   rasterpos((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos3f(GLfloat x, GLfloat y, GLfloat z)
+{
+   rasterpos(x, y, z, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos3i(GLint x, GLint y, GLint z)
+{
+   rasterpos((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos3s(GLshort x, GLshort y, GLshort z)
+{
+   rasterpos(x, y, z, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos4d(GLdouble x, GLdouble y, GLdouble z, GLdouble w)
+{
+   rasterpos((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos4f(GLfloat x, GLfloat y, GLfloat z, GLfloat w)
+{
+   rasterpos(x, y, z, w);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos4i(GLint x, GLint y, GLint z, GLint w)
+{
+   rasterpos((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos4s(GLshort x, GLshort y, GLshort z, GLshort w)
+{
+   rasterpos(x, y, z, w);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos2dv(const GLdouble *v)
+{
+   rasterpos((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos2fv(const GLfloat *v)
+{
+   rasterpos(v[0], v[1], 0.0F, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos2iv(const GLint *v)
+{
+   rasterpos((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos2sv(const GLshort *v)
+{
+   rasterpos(v[0], v[1], 0.0F, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos3dv(const GLdouble *v)
+{
+   rasterpos((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos3fv(const GLfloat *v)
+{
+   rasterpos(v[0], v[1], v[2], 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos3iv(const GLint *v)
+{
+   rasterpos((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos3sv(const GLshort *v)
+{
+   rasterpos(v[0], v[1], v[2], 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos4dv(const GLdouble *v)
+{
+   rasterpos((GLfloat) v[0], (GLfloat) v[1], 
+		     (GLfloat) v[2], (GLfloat) v[3]);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos4fv(const GLfloat *v)
+{
+   rasterpos(v[0], v[1], v[2], v[3]);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos4iv(const GLint *v)
+{
+   rasterpos((GLfloat) v[0], (GLfloat) v[1], 
+		     (GLfloat) v[2], (GLfloat) v[3]);
+}
+
+void GLAPIENTRY
+_mesa_RasterPos4sv(const GLshort *v)
+{
+   rasterpos(v[0], v[1], v[2], v[3]);
+}
+
+
+/**********************************************************************/
+/***           GL_ARB_window_pos / GL_MESA_window_pos               ***/
+/**********************************************************************/
+
+#if FEATURE_drawpix
+/**
+ * All glWindowPosMESA and glWindowPosARB commands call this function to
+ * update the current raster position.
+ */
+static void
+window_pos3f(GLfloat x, GLfloat y, GLfloat z)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLfloat z2;
+
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+   FLUSH_CURRENT(ctx, 0);
+
+   z2 = CLAMP(z, 0.0F, 1.0F) * (ctx->Viewport.Far - ctx->Viewport.Near)
+      + ctx->Viewport.Near;
+
+   /* set raster position */
+   ctx->Current.RasterPos[0] = x;
+   ctx->Current.RasterPos[1] = y;
+   ctx->Current.RasterPos[2] = z2;
+   ctx->Current.RasterPos[3] = 1.0F;
+
+   ctx->Current.RasterPosValid = GL_TRUE;
+
+   if (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT)
+      ctx->Current.RasterDistance = ctx->Current.Attrib[VERT_ATTRIB_FOG][0];
+   else
+      ctx->Current.RasterDistance = 0.0;
+
+   /* raster color = current color or index */
+   if (ctx->Visual.rgbMode) {
+      ctx->Current.RasterColor[0]
+         = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR0][0], 0.0F, 1.0F);
+      ctx->Current.RasterColor[1]
+         = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR0][1], 0.0F, 1.0F);
+      ctx->Current.RasterColor[2]
+         = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR0][2], 0.0F, 1.0F);
+      ctx->Current.RasterColor[3]
+         = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR0][3], 0.0F, 1.0F);
+      ctx->Current.RasterSecondaryColor[0]
+         = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR1][0], 0.0F, 1.0F);
+      ctx->Current.RasterSecondaryColor[1]
+         = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR1][1], 0.0F, 1.0F);
+      ctx->Current.RasterSecondaryColor[2]
+         = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR1][2], 0.0F, 1.0F);
+      ctx->Current.RasterSecondaryColor[3]
+         = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR1][3], 0.0F, 1.0F);
+   }
+   else {
+      ctx->Current.RasterIndex
+         = ctx->Current.Attrib[VERT_ATTRIB_COLOR_INDEX][0];
+   }
+
+   /* raster texcoord = current texcoord */
+   {
+      GLuint texSet;
+      for (texSet = 0; texSet < ctx->Const.MaxTextureCoordUnits; texSet++) {
+         COPY_4FV( ctx->Current.RasterTexCoords[texSet],
+                  ctx->Current.Attrib[VERT_ATTRIB_TEX0 + texSet] );
+      }
+   }
+
+   if (ctx->RenderMode==GL_SELECT) {
+      _mesa_update_hitflag( ctx, ctx->Current.RasterPos[2] );
+   }
+}
+
+
+/* This is just to support the GL_MESA_window_pos version */
+static void
+window_pos4f(GLfloat x, GLfloat y, GLfloat z, GLfloat w)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   window_pos3f(x, y, z);
+   ctx->Current.RasterPos[3] = w;
+}
+
+
+void GLAPIENTRY
+_mesa_WindowPos2dMESA(GLdouble x, GLdouble y)
+{
+   window_pos4f((GLfloat) x, (GLfloat) y, 0.0F, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos2fMESA(GLfloat x, GLfloat y)
+{
+   window_pos4f(x, y, 0.0F, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos2iMESA(GLint x, GLint y)
+{
+   window_pos4f((GLfloat) x, (GLfloat) y, 0.0F, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos2sMESA(GLshort x, GLshort y)
+{
+   window_pos4f(x, y, 0.0F, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos3dMESA(GLdouble x, GLdouble y, GLdouble z)
+{
+   window_pos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos3fMESA(GLfloat x, GLfloat y, GLfloat z)
+{
+   window_pos4f(x, y, z, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos3iMESA(GLint x, GLint y, GLint z)
+{
+   window_pos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos3sMESA(GLshort x, GLshort y, GLshort z)
+{
+   window_pos4f(x, y, z, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos4dMESA(GLdouble x, GLdouble y, GLdouble z, GLdouble w)
+{
+   window_pos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos4fMESA(GLfloat x, GLfloat y, GLfloat z, GLfloat w)
+{
+   window_pos4f(x, y, z, w);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos4iMESA(GLint x, GLint y, GLint z, GLint w)
+{
+   window_pos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos4sMESA(GLshort x, GLshort y, GLshort z, GLshort w)
+{
+   window_pos4f(x, y, z, w);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos2dvMESA(const GLdouble *v)
+{
+   window_pos4f((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos2fvMESA(const GLfloat *v)
+{
+   window_pos4f(v[0], v[1], 0.0F, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos2ivMESA(const GLint *v)
+{
+   window_pos4f((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos2svMESA(const GLshort *v)
+{
+   window_pos4f(v[0], v[1], 0.0F, 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos3dvMESA(const GLdouble *v)
+{
+   window_pos4f((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos3fvMESA(const GLfloat *v)
+{
+   window_pos4f(v[0], v[1], v[2], 1.0);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos3ivMESA(const GLint *v)
+{
+   window_pos4f((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos3svMESA(const GLshort *v)
+{
+   window_pos4f(v[0], v[1], v[2], 1.0F);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos4dvMESA(const GLdouble *v)
+{
+   window_pos4f((GLfloat) v[0], (GLfloat) v[1], 
+			 (GLfloat) v[2], (GLfloat) v[3]);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos4fvMESA(const GLfloat *v)
+{
+   window_pos4f(v[0], v[1], v[2], v[3]);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos4ivMESA(const GLint *v)
+{
+   window_pos4f((GLfloat) v[0], (GLfloat) v[1], 
+			 (GLfloat) v[2], (GLfloat) v[3]);
+}
+
+void GLAPIENTRY
+_mesa_WindowPos4svMESA(const GLshort *v)
+{
+   window_pos4f(v[0], v[1], v[2], v[3]);
+}
+
+#endif
+
+#if 0
+
+/*
+ * OpenGL implementation of glWindowPos*MESA()
+ */
+void glWindowPos4fMESA( GLfloat x, GLfloat y, GLfloat z, GLfloat w )
+{
+   GLfloat fx, fy;
+
+   /* Push current matrix mode and viewport attributes */
+   glPushAttrib( GL_TRANSFORM_BIT | GL_VIEWPORT_BIT );
+
+   /* Setup projection parameters */
+   glMatrixMode( GL_PROJECTION );
+   glPushMatrix();
+   glLoadIdentity();
+   glMatrixMode( GL_MODELVIEW );
+   glPushMatrix();
+   glLoadIdentity();
+
+   glDepthRange( z, z );
+   glViewport( (int) x - 1, (int) y - 1, 2, 2 );
+
+   /* set the raster (window) position */
+   fx = x - (int) x;
+   fy = y - (int) y;
+   glRasterPos4f( fx, fy, 0.0, w );
+
+   /* restore matrices, viewport and matrix mode */
+   glPopMatrix();
+   glMatrixMode( GL_PROJECTION );
+   glPopMatrix();
+
+   glPopAttrib();
+}
+
+#endif
+
+
+/**********************************************************************/
+/** \name Initialization                                              */
+/**********************************************************************/
+/*@{*/
+
+/**
+ * Initialize the context current raster position information.
+ *
+ * \param ctx GL context.
+ *
+ * Initialize the current raster position information in
+ * __GLcontextRec::Current, and adds the extension entry points to the
+ * dispatcher.
+ */
+void _mesa_init_rastpos( GLcontext * ctx )
+{
+   int i;
+
+   ASSIGN_4V( ctx->Current.RasterPos, 0.0, 0.0, 0.0, 1.0 );
+   ctx->Current.RasterDistance = 0.0;
+   ASSIGN_4V( ctx->Current.RasterColor, 1.0, 1.0, 1.0, 1.0 );
+   ASSIGN_4V( ctx->Current.RasterSecondaryColor, 0.0, 0.0, 0.0, 1.0 );
+   ctx->Current.RasterIndex = 1.0;
+   for (i = 0; i < MAX_TEXTURE_COORD_UNITS; i++)
+      ASSIGN_4V( ctx->Current.RasterTexCoords[i], 0.0, 0.0, 0.0, 1.0 );
+   ctx->Current.RasterPosValid = GL_TRUE;
+}
+
+/*@}*/