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Diffstat (limited to 'src/mesa/vbo/vbo_context.h')
-rw-r--r-- | src/mesa/vbo/vbo_context.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/mesa/vbo/vbo_context.h b/src/mesa/vbo/vbo_context.h new file mode 100644 index 0000000000..0dc1019b39 --- /dev/null +++ b/src/mesa/vbo/vbo_context.h @@ -0,0 +1,108 @@ +/* + * 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_save.h" +#include "vbo_exec.h" + + +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[32]; + GLuint map_vp_arb[32]; + + GLfloat *current[VBO_ATTRIB_MAX]; /* points into ctx->Current, ctx->Light.Material */ + GLfloat CurrentFloatEdgeFlag; + + + struct vbo_exec_context exec; + struct vbo_save_context save; + + /* 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); +} + +enum { + VP_NONE = 1, + VP_NV, + VP_ARB +}; + +static INLINE GLuint get_program_mode( GLcontext *ctx ) +{ + if (!ctx->VertexProgram._Enabled) + return VP_NONE; + else if (ctx->VertexProgram.Current->IsNVProgram) + return VP_NV; + else + return VP_ARB; +} + + +#endif |