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-rw-r--r--mesalib/src/mesa/main/polygon.c644
1 files changed, 322 insertions, 322 deletions
diff --git a/mesalib/src/mesa/main/polygon.c b/mesalib/src/mesa/main/polygon.c
index ff4232ecc..3ad375901 100644
--- a/mesalib/src/mesa/main/polygon.c
+++ b/mesalib/src/mesa/main/polygon.c
@@ -1,322 +1,322 @@
-/**
- * \file polygon.c
- * Polygon operations.
- */
-
-/*
- * Mesa 3-D graphics library
- * Version: 6.5.1
- *
- * Copyright (C) 1999-2006 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.
- */
-
-
-#include "glheader.h"
-#include "imports.h"
-#include "context.h"
-#include "image.h"
-#include "enums.h"
-#include "pack.h"
-#include "pbo.h"
-#include "polygon.h"
-#include "mtypes.h"
-
-
-/**
- * Specify whether to cull front- or back-facing facets.
- *
- * \param mode culling mode.
- *
- * \sa glCullFace().
- *
- * Verifies the parameter and updates gl_polygon_attrib::CullFaceMode. On
- * change, flushes the vertices and notifies the driver via
- * the dd_function_table::CullFace callback.
- */
-void GLAPIENTRY
-_mesa_CullFace( GLenum mode )
-{
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- if (MESA_VERBOSE&VERBOSE_API)
- _mesa_debug(ctx, "glCullFace %s\n", _mesa_lookup_enum_by_nr(mode));
-
- if (mode!=GL_FRONT && mode!=GL_BACK && mode!=GL_FRONT_AND_BACK) {
- _mesa_error( ctx, GL_INVALID_ENUM, "glCullFace" );
- return;
- }
-
- if (ctx->Polygon.CullFaceMode == mode)
- return;
-
- FLUSH_VERTICES(ctx, _NEW_POLYGON);
- ctx->Polygon.CullFaceMode = mode;
-
- if (ctx->Driver.CullFace)
- ctx->Driver.CullFace( ctx, mode );
-}
-
-
-/**
- * Define front- and back-facing
- *
- * \param mode orientation of front-facing polygons.
- *
- * \sa glFrontFace().
- *
- * Verifies the parameter and updates gl_polygon_attrib::FrontFace. On change
- * flushes the vertices and notifies the driver via
- * the dd_function_table::FrontFace callback.
- */
-void GLAPIENTRY
-_mesa_FrontFace( GLenum mode )
-{
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- if (MESA_VERBOSE&VERBOSE_API)
- _mesa_debug(ctx, "glFrontFace %s\n", _mesa_lookup_enum_by_nr(mode));
-
- if (mode!=GL_CW && mode!=GL_CCW) {
- _mesa_error( ctx, GL_INVALID_ENUM, "glFrontFace" );
- return;
- }
-
- if (ctx->Polygon.FrontFace == mode)
- return;
-
- FLUSH_VERTICES(ctx, _NEW_POLYGON);
- ctx->Polygon.FrontFace = mode;
-
- ctx->Polygon._FrontBit = (GLboolean) (mode == GL_CW);
-
- if (ctx->Driver.FrontFace)
- ctx->Driver.FrontFace( ctx, mode );
-}
-
-
-/**
- * Set the polygon rasterization mode.
- *
- * \param face the polygons which \p mode applies to.
- * \param mode how polygons should be rasterized.
- *
- * \sa glPolygonMode().
- *
- * Verifies the parameters and updates gl_polygon_attrib::FrontMode and
- * gl_polygon_attrib::BackMode. On change flushes the vertices and notifies the
- * driver via the dd_function_table::PolygonMode callback.
- */
-void GLAPIENTRY
-_mesa_PolygonMode( GLenum face, GLenum mode )
-{
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- if (MESA_VERBOSE&VERBOSE_API)
- _mesa_debug(ctx, "glPolygonMode %s %s\n",
- _mesa_lookup_enum_by_nr(face),
- _mesa_lookup_enum_by_nr(mode));
-
- if (mode!=GL_POINT && mode!=GL_LINE && mode!=GL_FILL) {
- _mesa_error( ctx, GL_INVALID_ENUM, "glPolygonMode(mode)" );
- return;
- }
-
- switch (face) {
- case GL_FRONT:
- if (ctx->Polygon.FrontMode == mode)
- return;
- FLUSH_VERTICES(ctx, _NEW_POLYGON);
- ctx->Polygon.FrontMode = mode;
- break;
- case GL_FRONT_AND_BACK:
- if (ctx->Polygon.FrontMode == mode &&
- ctx->Polygon.BackMode == mode)
- return;
- FLUSH_VERTICES(ctx, _NEW_POLYGON);
- ctx->Polygon.FrontMode = mode;
- ctx->Polygon.BackMode = mode;
- break;
- case GL_BACK:
- if (ctx->Polygon.BackMode == mode)
- return;
- FLUSH_VERTICES(ctx, _NEW_POLYGON);
- ctx->Polygon.BackMode = mode;
- break;
- default:
- _mesa_error( ctx, GL_INVALID_ENUM, "glPolygonMode(face)" );
- return;
- }
-
- if (ctx->Polygon.FrontMode == GL_FILL && ctx->Polygon.BackMode == GL_FILL)
- ctx->_TriangleCaps &= ~DD_TRI_UNFILLED;
- else
- ctx->_TriangleCaps |= DD_TRI_UNFILLED;
-
- if (ctx->Driver.PolygonMode)
- ctx->Driver.PolygonMode(ctx, face, mode);
-}
-
-#if _HAVE_FULL_GL
-
-
-/**
- * This routine updates the ctx->Polygon.Stipple state.
- * If we're getting the stipple data from a PBO, we map the buffer
- * in order to access the data.
- * In any case, we obey the current pixel unpacking parameters when fetching
- * the stipple data.
- *
- * In the future, this routine should be used as a fallback, called via
- * ctx->Driver.PolygonStipple(). We'll have to update all the DRI drivers
- * too.
- */
-void
-_mesa_polygon_stipple(struct gl_context *ctx, const GLubyte *pattern)
-{
- pattern = _mesa_map_validate_pbo_source(ctx, 2,
- &ctx->Unpack, 32, 32, 1,
- GL_COLOR_INDEX, GL_BITMAP, pattern,
- "glPolygonStipple");
- if (!pattern)
- return;
-
- _mesa_unpack_polygon_stipple(pattern, ctx->PolygonStipple, &ctx->Unpack);
-
- _mesa_unmap_pbo_source(ctx, &ctx->Unpack);
-}
-
-
-/**
- * Called by glPolygonStipple.
- */
-void GLAPIENTRY
-_mesa_PolygonStipple( const GLubyte *pattern )
-{
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- if (MESA_VERBOSE&VERBOSE_API)
- _mesa_debug(ctx, "glPolygonStipple\n");
-
- FLUSH_VERTICES(ctx, _NEW_POLYGONSTIPPLE);
-
- _mesa_polygon_stipple(ctx, pattern);
-
- if (ctx->Driver.PolygonStipple)
- ctx->Driver.PolygonStipple(ctx, pattern);
-}
-
-
-/**
- * Called by glPolygonStipple.
- */
-void GLAPIENTRY
-_mesa_GetPolygonStipple( GLubyte *dest )
-{
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- if (MESA_VERBOSE&VERBOSE_API)
- _mesa_debug(ctx, "glGetPolygonStipple\n");
-
- dest = _mesa_map_validate_pbo_dest(ctx, 2,
- &ctx->Pack, 32, 32, 1,
- GL_COLOR_INDEX, GL_BITMAP, dest,
- "glGetPolygonStipple");
- if (!dest)
- return;
-
- _mesa_pack_polygon_stipple(ctx->PolygonStipple, dest, &ctx->Pack);
-
- _mesa_unmap_pbo_dest(ctx, &ctx->Pack);
-}
-
-
-void GLAPIENTRY
-_mesa_PolygonOffset( GLfloat factor, GLfloat units )
-{
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- if (MESA_VERBOSE&VERBOSE_API)
- _mesa_debug(ctx, "glPolygonOffset %f %f\n", factor, units);
-
- if (ctx->Polygon.OffsetFactor == factor &&
- ctx->Polygon.OffsetUnits == units)
- return;
-
- FLUSH_VERTICES(ctx, _NEW_POLYGON);
- ctx->Polygon.OffsetFactor = factor;
- ctx->Polygon.OffsetUnits = units;
-
- if (ctx->Driver.PolygonOffset)
- ctx->Driver.PolygonOffset( ctx, factor, units );
-}
-
-
-void GLAPIENTRY
-_mesa_PolygonOffsetEXT( GLfloat factor, GLfloat bias )
-{
- GET_CURRENT_CONTEXT(ctx);
- /* XXX mult by DepthMaxF here??? */
- _mesa_PolygonOffset(factor, bias * ctx->DrawBuffer->_DepthMaxF );
-}
-
-#endif
-
-
-/**********************************************************************/
-/** \name Initialization */
-/*@{*/
-
-/**
- * Initialize the context polygon state.
- *
- * \param ctx GL context.
- *
- * Initializes __struct gl_contextRec::Polygon and __struct gl_contextRec::PolygonStipple
- * attribute groups.
- */
-void _mesa_init_polygon( struct gl_context * ctx )
-{
- /* Polygon group */
- ctx->Polygon.CullFlag = GL_FALSE;
- ctx->Polygon.CullFaceMode = GL_BACK;
- ctx->Polygon.FrontFace = GL_CCW;
- ctx->Polygon._FrontBit = 0;
- ctx->Polygon.FrontMode = GL_FILL;
- ctx->Polygon.BackMode = GL_FILL;
- ctx->Polygon.SmoothFlag = GL_FALSE;
- ctx->Polygon.StippleFlag = GL_FALSE;
- ctx->Polygon.OffsetFactor = 0.0F;
- ctx->Polygon.OffsetUnits = 0.0F;
- ctx->Polygon.OffsetPoint = GL_FALSE;
- ctx->Polygon.OffsetLine = GL_FALSE;
- ctx->Polygon.OffsetFill = GL_FALSE;
-
-
- /* Polygon Stipple group */
- memset( ctx->PolygonStipple, 0xff, 32*sizeof(GLuint) );
-}
-
-/*@}*/
+/**
+ * \file polygon.c
+ * Polygon operations.
+ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5.1
+ *
+ * Copyright (C) 1999-2006 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.
+ */
+
+
+#include "glheader.h"
+#include "imports.h"
+#include "context.h"
+#include "image.h"
+#include "enums.h"
+#include "pack.h"
+#include "pbo.h"
+#include "polygon.h"
+#include "mtypes.h"
+
+
+/**
+ * Specify whether to cull front- or back-facing facets.
+ *
+ * \param mode culling mode.
+ *
+ * \sa glCullFace().
+ *
+ * Verifies the parameter and updates gl_polygon_attrib::CullFaceMode. On
+ * change, flushes the vertices and notifies the driver via
+ * the dd_function_table::CullFace callback.
+ */
+void GLAPIENTRY
+_mesa_CullFace( GLenum mode )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE&VERBOSE_API)
+ _mesa_debug(ctx, "glCullFace %s\n", _mesa_lookup_enum_by_nr(mode));
+
+ if (mode!=GL_FRONT && mode!=GL_BACK && mode!=GL_FRONT_AND_BACK) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glCullFace" );
+ return;
+ }
+
+ if (ctx->Polygon.CullFaceMode == mode)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_POLYGON);
+ ctx->Polygon.CullFaceMode = mode;
+
+ if (ctx->Driver.CullFace)
+ ctx->Driver.CullFace( ctx, mode );
+}
+
+
+/**
+ * Define front- and back-facing
+ *
+ * \param mode orientation of front-facing polygons.
+ *
+ * \sa glFrontFace().
+ *
+ * Verifies the parameter and updates gl_polygon_attrib::FrontFace. On change
+ * flushes the vertices and notifies the driver via
+ * the dd_function_table::FrontFace callback.
+ */
+void GLAPIENTRY
+_mesa_FrontFace( GLenum mode )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE&VERBOSE_API)
+ _mesa_debug(ctx, "glFrontFace %s\n", _mesa_lookup_enum_by_nr(mode));
+
+ if (mode!=GL_CW && mode!=GL_CCW) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glFrontFace" );
+ return;
+ }
+
+ if (ctx->Polygon.FrontFace == mode)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_POLYGON);
+ ctx->Polygon.FrontFace = mode;
+
+ ctx->Polygon._FrontBit = (GLboolean) (mode == GL_CW);
+
+ if (ctx->Driver.FrontFace)
+ ctx->Driver.FrontFace( ctx, mode );
+}
+
+
+/**
+ * Set the polygon rasterization mode.
+ *
+ * \param face the polygons which \p mode applies to.
+ * \param mode how polygons should be rasterized.
+ *
+ * \sa glPolygonMode().
+ *
+ * Verifies the parameters and updates gl_polygon_attrib::FrontMode and
+ * gl_polygon_attrib::BackMode. On change flushes the vertices and notifies the
+ * driver via the dd_function_table::PolygonMode callback.
+ */
+void GLAPIENTRY
+_mesa_PolygonMode( GLenum face, GLenum mode )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE&VERBOSE_API)
+ _mesa_debug(ctx, "glPolygonMode %s %s\n",
+ _mesa_lookup_enum_by_nr(face),
+ _mesa_lookup_enum_by_nr(mode));
+
+ if (mode!=GL_POINT && mode!=GL_LINE && mode!=GL_FILL) {
+ _mesa_error( ctx, GL_INVALID_ENUM, "glPolygonMode(mode)" );
+ return;
+ }
+
+ switch (face) {
+ case GL_FRONT:
+ if (ctx->Polygon.FrontMode == mode)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_POLYGON);
+ ctx->Polygon.FrontMode = mode;
+ break;
+ case GL_FRONT_AND_BACK:
+ if (ctx->Polygon.FrontMode == mode &&
+ ctx->Polygon.BackMode == mode)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_POLYGON);
+ ctx->Polygon.FrontMode = mode;
+ ctx->Polygon.BackMode = mode;
+ break;
+ case GL_BACK:
+ if (ctx->Polygon.BackMode == mode)
+ return;
+ FLUSH_VERTICES(ctx, _NEW_POLYGON);
+ ctx->Polygon.BackMode = mode;
+ break;
+ default:
+ _mesa_error( ctx, GL_INVALID_ENUM, "glPolygonMode(face)" );
+ return;
+ }
+
+ if (ctx->Polygon.FrontMode == GL_FILL && ctx->Polygon.BackMode == GL_FILL)
+ ctx->_TriangleCaps &= ~DD_TRI_UNFILLED;
+ else
+ ctx->_TriangleCaps |= DD_TRI_UNFILLED;
+
+ if (ctx->Driver.PolygonMode)
+ ctx->Driver.PolygonMode(ctx, face, mode);
+}
+
+#if _HAVE_FULL_GL
+
+
+/**
+ * This routine updates the ctx->Polygon.Stipple state.
+ * If we're getting the stipple data from a PBO, we map the buffer
+ * in order to access the data.
+ * In any case, we obey the current pixel unpacking parameters when fetching
+ * the stipple data.
+ *
+ * In the future, this routine should be used as a fallback, called via
+ * ctx->Driver.PolygonStipple(). We'll have to update all the DRI drivers
+ * too.
+ */
+void
+_mesa_polygon_stipple(struct gl_context *ctx, const GLubyte *pattern)
+{
+ pattern = _mesa_map_validate_pbo_source(ctx, 2,
+ &ctx->Unpack, 32, 32, 1,
+ GL_COLOR_INDEX, GL_BITMAP, pattern,
+ "glPolygonStipple");
+ if (!pattern)
+ return;
+
+ _mesa_unpack_polygon_stipple(pattern, ctx->PolygonStipple, &ctx->Unpack);
+
+ _mesa_unmap_pbo_source(ctx, &ctx->Unpack);
+}
+
+
+/**
+ * Called by glPolygonStipple.
+ */
+void GLAPIENTRY
+_mesa_PolygonStipple( const GLubyte *pattern )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE&VERBOSE_API)
+ _mesa_debug(ctx, "glPolygonStipple\n");
+
+ FLUSH_VERTICES(ctx, _NEW_POLYGONSTIPPLE);
+
+ _mesa_polygon_stipple(ctx, pattern);
+
+ if (ctx->Driver.PolygonStipple)
+ ctx->Driver.PolygonStipple(ctx, pattern);
+}
+
+
+/**
+ * Called by glPolygonStipple.
+ */
+void GLAPIENTRY
+_mesa_GetPolygonStipple( GLubyte *dest )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE&VERBOSE_API)
+ _mesa_debug(ctx, "glGetPolygonStipple\n");
+
+ dest = _mesa_map_validate_pbo_dest(ctx, 2,
+ &ctx->Pack, 32, 32, 1,
+ GL_COLOR_INDEX, GL_BITMAP, dest,
+ "glGetPolygonStipple");
+ if (!dest)
+ return;
+
+ _mesa_pack_polygon_stipple(ctx->PolygonStipple, dest, &ctx->Pack);
+
+ _mesa_unmap_pbo_dest(ctx, &ctx->Pack);
+}
+
+
+void GLAPIENTRY
+_mesa_PolygonOffset( GLfloat factor, GLfloat units )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (MESA_VERBOSE&VERBOSE_API)
+ _mesa_debug(ctx, "glPolygonOffset %f %f\n", factor, units);
+
+ if (ctx->Polygon.OffsetFactor == factor &&
+ ctx->Polygon.OffsetUnits == units)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_POLYGON);
+ ctx->Polygon.OffsetFactor = factor;
+ ctx->Polygon.OffsetUnits = units;
+
+ if (ctx->Driver.PolygonOffset)
+ ctx->Driver.PolygonOffset( ctx, factor, units );
+}
+
+
+void GLAPIENTRY
+_mesa_PolygonOffsetEXT( GLfloat factor, GLfloat bias )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ /* XXX mult by DepthMaxF here??? */
+ _mesa_PolygonOffset(factor, bias * ctx->DrawBuffer->_DepthMaxF );
+}
+
+#endif
+
+
+/**********************************************************************/
+/** \name Initialization */
+/*@{*/
+
+/**
+ * Initialize the context polygon state.
+ *
+ * \param ctx GL context.
+ *
+ * Initializes __struct gl_contextRec::Polygon and __struct gl_contextRec::PolygonStipple
+ * attribute groups.
+ */
+void _mesa_init_polygon( struct gl_context * ctx )
+{
+ /* Polygon group */
+ ctx->Polygon.CullFlag = GL_FALSE;
+ ctx->Polygon.CullFaceMode = GL_BACK;
+ ctx->Polygon.FrontFace = GL_CCW;
+ ctx->Polygon._FrontBit = 0;
+ ctx->Polygon.FrontMode = GL_FILL;
+ ctx->Polygon.BackMode = GL_FILL;
+ ctx->Polygon.SmoothFlag = GL_FALSE;
+ ctx->Polygon.StippleFlag = GL_FALSE;
+ ctx->Polygon.OffsetFactor = 0.0F;
+ ctx->Polygon.OffsetUnits = 0.0F;
+ ctx->Polygon.OffsetPoint = GL_FALSE;
+ ctx->Polygon.OffsetLine = GL_FALSE;
+ ctx->Polygon.OffsetFill = GL_FALSE;
+
+
+ /* Polygon Stipple group */
+ memset( ctx->PolygonStipple, 0xff, 32*sizeof(GLuint) );
+}
+
+/*@}*/