1 /* 2 * Mesa 3-D graphics library 3 * 4 * Copyright (C) 2010 VMware, Inc. All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included 14 * in all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 20 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 22 */ 23 24 25 #ifndef TRANSFORM_FEEDBACK_H 26 #define TRANSFORM_FEEDBACK_H 27 28 #include "compiler.h" 29 #include "glheader.h" 30 #include "mfeatures.h" 31 32 struct _glapi_table; 33 struct dd_function_table; 34 struct gl_context; 35 36 extern void 37 _mesa_init_transform_feedback(struct gl_context *ctx); 38 39 extern void 40 _mesa_free_transform_feedback(struct gl_context *ctx); 41 42 #if FEATURE_EXT_transform_feedback 43 44 extern GLboolean 45 _mesa_validate_transform_feedback_buffers(struct gl_context *ctx); 46 47 48 extern void 49 _mesa_init_transform_feedback_functions(struct dd_function_table *driver); 50 51 extern void 52 _mesa_init_transform_feedback_dispatch(struct _glapi_table *disp); 53 54 55 /*** GL_EXT_transform_feedback ***/ 56 57 extern void GLAPIENTRY 58 _mesa_BeginTransformFeedback(GLenum mode); 59 60 extern void GLAPIENTRY 61 _mesa_EndTransformFeedback(void); 62 63 extern void 64 _mesa_bind_buffer_range_transform_feedback(struct gl_context *ctx, 65 GLuint index, 66 struct gl_buffer_object *bufObj, 67 GLintptr offset, 68 GLsizeiptr size); 69 70 extern void 71 _mesa_bind_buffer_base_transform_feedback(struct gl_context *ctx, 72 GLuint index, 73 struct gl_buffer_object *bufObj); 74 75 extern void GLAPIENTRY 76 _mesa_BindBufferOffsetEXT(GLenum target, GLuint index, GLuint buffer, 77 GLintptr offset); 78 79 extern void GLAPIENTRY 80 _mesa_TransformFeedbackVaryings(GLuint program, GLsizei count, 81 const GLchar **varyings, GLenum bufferMode); 82 83 extern void GLAPIENTRY 84 _mesa_GetTransformFeedbackVarying(GLuint program, GLuint index, 85 GLsizei bufSize, GLsizei *length, 86 GLsizei *size, GLenum *type, GLchar *name); 87 88 89 90 /*** GL_ARB_transform_feedback2 ***/ 91 92 struct gl_transform_feedback_object * 93 _mesa_lookup_transform_feedback_object(struct gl_context *ctx, GLuint name); 94 95 extern void GLAPIENTRY 96 _mesa_GenTransformFeedbacks(GLsizei n, GLuint *names); 97 98 extern GLboolean GLAPIENTRY 99 _mesa_IsTransformFeedback(GLuint name); 100 101 extern void GLAPIENTRY 102 _mesa_BindTransformFeedback(GLenum target, GLuint name); 103 104 extern void GLAPIENTRY 105 _mesa_DeleteTransformFeedbacks(GLsizei n, const GLuint *names); 106 107 extern void GLAPIENTRY 108 _mesa_PauseTransformFeedback(void); 109 110 extern void GLAPIENTRY 111 _mesa_ResumeTransformFeedback(void); 112 113 #else /* FEATURE_EXT_transform_feedback */ 114 115 static inline GLboolean 116 _mesa_validate_primitive_mode(struct gl_context *ctx, GLenum mode) 117 { 118 return GL_TRUE; 119 } 120 121 static inline GLboolean 122 _mesa_validate_transform_feedback_buffers(struct gl_context *ctx) 123 { 124 return GL_TRUE; 125 } 126 127 static inline void 128 _mesa_init_transform_feedback_functions(struct dd_function_table *driver) 129 { 130 } 131 132 static inline void 133 _mesa_init_transform_feedback_dispatch(struct _glapi_table *disp) 134 { 135 } 136 137 #endif /* FEATURE_EXT_transform_feedback */ 138 139 #endif /* TRANSFORM_FEEDBACK_H */ 140