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authormarha <marha@users.sourceforge.net>2009-10-08 13:15:52 +0000
committermarha <marha@users.sourceforge.net>2009-10-08 13:15:52 +0000
commita0c4815433ccd57322f4f7703ca35e9ccfa59250 (patch)
treef5213802ec12adb86ec3136001c1c29fe5343700 /mesalib/src/mesa/vbo/vbo_context.h
parentc73dc01b6de45612b24dc2dd34fba24d81ebf46c (diff)
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Added MesaLib-7.6
Diffstat (limited to 'mesalib/src/mesa/vbo/vbo_context.h')
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diff --git a/mesalib/src/mesa/vbo/vbo_context.h b/mesalib/src/mesa/vbo/vbo_context.h
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+/*
+ * mesa 3-D graphics library
+ * Version: 6.5
+ *
+ * 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.
+ */
+
+/**
+ * \file vbo_context.h
+ * \brief VBO builder module datatypes and definitions.
+ * \author Keith Whitwell
+ */
+
+
+/**
+ * \mainpage The VBO builder module
+ *
+ * This module hooks into the GL dispatch table and catches all vertex
+ * building and drawing commands, such as glVertex3f, glBegin and
+ * glDrawArrays. The module stores all incoming vertex data as arrays
+ * in GL vertex buffer objects (VBOs), and translates all drawing
+ * commands into calls to a driver supplied DrawPrimitives() callback.
+ *
+ * The module captures both immediate mode and display list drawing,
+ * and manages the allocation, reference counting and deallocation of
+ * vertex buffer objects itself.
+ *
+ * The DrawPrimitives() callback can be either implemented by the
+ * driver itself or hooked to the tnl module's _tnl_draw_primitives()
+ * function for hardware without tnl capablilties or during fallbacks.
+ */
+
+
+#ifndef _VBO_CONTEXT_H
+#define _VBO_CONTEXT_H
+
+#include "vbo.h"
+#include "vbo_attrib.h"
+#include "vbo_exec.h"
+#if FEATURE_dlist
+#include "vbo_save.h"
+#endif
+
+
+struct vbo_context {
+ struct gl_client_array currval[VBO_ATTRIB_MAX];
+
+ /* These point into the above. TODO: remove.
+ */
+ struct gl_client_array *legacy_currval;
+ struct gl_client_array *generic_currval;
+ struct gl_client_array *mat_currval;
+
+ GLuint map_vp_none[VERT_ATTRIB_MAX];
+ GLuint map_vp_arb[VERT_ATTRIB_MAX];
+
+ GLfloat *current[VBO_ATTRIB_MAX]; /* points into ctx->Current, ctx->Light.Material */
+ GLfloat CurrentFloatEdgeFlag;
+
+
+ struct vbo_exec_context exec;
+#if FEATURE_dlist
+ struct vbo_save_context save;
+#endif
+
+ /* Callback into the driver. This must always succeed, the driver
+ * is responsible for initiating any fallback actions required:
+ */
+ vbo_draw_func draw_prims;
+};
+
+
+static INLINE struct vbo_context *vbo_context(GLcontext *ctx)
+{
+ return (struct vbo_context *)(ctx->swtnl_im);
+}
+
+
+/**
+ * Return VP_x token to indicate whether we're running fixed-function
+ * vertex transformation, an NV vertex program or ARB vertex program/shader.
+ */
+static INLINE enum vp_mode
+get_program_mode( GLcontext *ctx )
+{
+ if (!ctx->VertexProgram._Current)
+ return VP_NONE;
+ else if (ctx->VertexProgram._Current == ctx->VertexProgram._TnlProgram)
+ return VP_NONE;
+ else if (ctx->VertexProgram._Current->IsNVProgram)
+ return VP_NV;
+ else
+ return VP_ARB;
+}
+
+
+#endif