/* * mesa 3-D graphics library * * 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 * THE AUTHORS OR COPYRIGHT HOLDERS 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 */ #ifndef _VBO_H #define _VBO_H #include #include "main/glheader.h" struct gl_client_array; struct gl_context; struct gl_transform_feedback_object; struct _mesa_prim { GLuint mode:8; /**< GL_POINTS, GL_LINES, GL_QUAD_STRIP, etc */ GLuint indexed:1; GLuint begin:1; GLuint end:1; GLuint weak:1; GLuint no_current_update:1; GLuint pad:19; GLuint start; GLuint count; GLint basevertex; GLuint num_instances; GLuint base_instance; }; /* Would like to call this a "vbo_index_buffer", but this would be * confusing as the indices are not neccessarily yet in a non-null * buffer object. */ struct _mesa_index_buffer { GLuint count; GLenum type; struct gl_buffer_object *obj; const void *ptr; }; GLboolean _vbo_CreateContext( struct gl_context *ctx ); void _vbo_DestroyContext( struct gl_context *ctx ); void _vbo_InvalidateState( struct gl_context *ctx, GLuint new_state ); void vbo_initialize_exec_dispatch(const struct gl_context *ctx, struct _glapi_table *exec); void vbo_initialize_save_dispatch(const struct gl_context *ctx, struct _glapi_table *exec); typedef void (*vbo_draw_func)( struct gl_context *ctx, const struct _mesa_prim *prims, GLuint nr_prims, const struct _mesa_index_buffer *ib, GLboolean index_bounds_valid, GLuint min_index, GLuint max_index, struct gl_transform_feedback_object *tfb_vertcount ); /* Utility function to cope with various constraints on tnl modules or * hardware. This can be used to split an incoming set of arrays and * primitives against the following constraints: * - Maximum number of indices in index buffer. * - Maximum number of vertices referenced by index buffer. * - Maximum hardware vertex buffer size. */ struct split_limits { GLuint max_verts; GLuint max_indices; GLuint max_vb_size; /* bytes */ }; void vbo_split_prims( struct gl_context *ctx, const struct gl_client_array *arrays[], const struct _mesa_prim *prim, GLuint nr_prims, const struct _mesa_index_buffer *ib, GLuint min_index, GLuint max_index, vbo_draw_func draw, const struct split_limits *limits ); /* Helpers for dealing translating away non-zero min_index. */ GLboolean vbo_all_varyings_in_vbos( const struct gl_client_array *arrays[] ); GLboolean vbo_any_varyings_in_vbos( const struct gl_client_array *arrays[] ); void vbo_rebase_prims( struct gl_context *ctx, const struct gl_client_array *arrays[], const struct _mesa_prim *prim, GLuint nr_prims, const struct _mesa_index_buffer *ib, GLuint min_index, GLuint max_index, vbo_draw_func draw ); static inline int vbo_sizeof_ib_type(GLenum type) { switch (type) { case GL_UNSIGNED_INT: return sizeof(GLuint); case GL_UNSIGNED_SHORT: return sizeof(GLushort); case GL_UNSIGNED_BYTE: return sizeof(GLubyte); default: assert(!"unsupported index data type"); /* In case assert is turned off */ return 0; } } void vbo_get_minmax_indices(struct gl_context *ctx, const struct _mesa_prim *prim, const struct _mesa_index_buffer *ib, GLuint *min_index, GLuint *max_index, GLuint nr_prims); void vbo_use_buffer_objects(struct gl_context *ctx); void vbo_always_unmap_buffers(struct gl_context *ctx); void vbo_set_draw_func(struct gl_context *ctx, vbo_draw_func func); void vbo_check_buffers_are_unmapped(struct gl_context *ctx); void vbo_bind_arrays(struct gl_context *ctx); size_t vbo_count_tessellated_primitives(GLenum mode, GLuint count, GLuint num_instances); void vbo_try_prim_conversion(struct _mesa_prim *p); bool vbo_can_merge_prims(const struct _mesa_prim *p0, const struct _mesa_prim *p1); void vbo_merge_prims(struct _mesa_prim *p0, const struct _mesa_prim *p1); void vbo_sw_primitive_restart(struct gl_context *ctx, const struct _mesa_prim *prim, GLuint nr_prims, const struct _mesa_index_buffer *ib); void GLAPIENTRY _es_Color4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a); void GLAPIENTRY _es_Normal3f(GLfloat x, GLfloat y, GLfloat z); void GLAPIENTRY _es_MultiTexCoord4f(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q); void GLAPIENTRY _es_Materialfv(GLenum face, GLenum pname, const GLfloat *params); void GLAPIENTRY _es_Materialf(GLenum face, GLenum pname, GLfloat param); void GLAPIENTRY _es_VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w); void GLAPIENTRY _es_VertexAttrib1f(GLuint indx, GLfloat x); void GLAPIENTRY _es_VertexAttrib1fv(GLuint indx, const GLfloat* values); void GLAPIENTRY _es_VertexAttrib2f(GLuint indx, GLfloat x, GLfloat y); void GLAPIENTRY _es_VertexAttrib2fv(GLuint indx, const GLfloat* values); void GLAPIENTRY _es_VertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z); void GLAPIENTRY _es_VertexAttrib3fv(GLuint indx, const GLfloat* values); void GLAPIENTRY _es_VertexAttrib4fv(GLuint indx, const GLfloat* values); #endif