/* * Mesa 3-D graphics library * * Copyright (C) 2010 VMware, Inc. 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 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. */ #ifndef TRANSFORM_FEEDBACK_H #define TRANSFORM_FEEDBACK_H #include #include "compiler.h" #include "glheader.h" #include "mtypes.h" struct _glapi_table; struct dd_function_table; struct gl_context; extern void _mesa_init_transform_feedback(struct gl_context *ctx); extern void _mesa_free_transform_feedback(struct gl_context *ctx); extern GLboolean _mesa_validate_transform_feedback_buffers(struct gl_context *ctx); extern void _mesa_init_transform_feedback_functions(struct dd_function_table *driver); extern unsigned _mesa_compute_max_transform_feedback_vertices( const struct gl_transform_feedback_object *obj, const struct gl_transform_feedback_info *info); /*** GL_EXT_transform_feedback ***/ extern void GLAPIENTRY _mesa_BeginTransformFeedback(GLenum mode); extern void GLAPIENTRY _mesa_EndTransformFeedback(void); extern void _mesa_bind_buffer_range_transform_feedback(struct gl_context *ctx, GLuint index, struct gl_buffer_object *bufObj, GLintptr offset, GLsizeiptr size); extern void _mesa_bind_buffer_base_transform_feedback(struct gl_context *ctx, GLuint index, struct gl_buffer_object *bufObj); extern void GLAPIENTRY _mesa_BindBufferOffsetEXT(GLenum target, GLuint index, GLuint buffer, GLintptr offset); extern void GLAPIENTRY _mesa_TransformFeedbackVaryings(GLuint program, GLsizei count, const GLchar * const *varyings, GLenum bufferMode); extern void GLAPIENTRY _mesa_GetTransformFeedbackVarying(GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLsizei *size, GLenum *type, GLchar *name); /*** GL_ARB_transform_feedback2 ***/ struct gl_transform_feedback_object * _mesa_lookup_transform_feedback_object(struct gl_context *ctx, GLuint name); extern void GLAPIENTRY _mesa_GenTransformFeedbacks(GLsizei n, GLuint *names); extern GLboolean GLAPIENTRY _mesa_IsTransformFeedback(GLuint name); extern void GLAPIENTRY _mesa_BindTransformFeedback(GLenum target, GLuint name); extern void GLAPIENTRY _mesa_DeleteTransformFeedbacks(GLsizei n, const GLuint *names); extern void GLAPIENTRY _mesa_PauseTransformFeedback(void); extern void GLAPIENTRY _mesa_ResumeTransformFeedback(void); static inline bool _mesa_is_xfb_active_and_unpaused(const struct gl_context *ctx) { return ctx->TransformFeedback.CurrentObject->Active && !ctx->TransformFeedback.CurrentObject->Paused; } #endif /* TRANSFORM_FEEDBACK_H */