1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
/*
* 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 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.
*/
#ifndef TRANSFORM_FEEDBACK_H
#define TRANSFORM_FEEDBACK_H
#include <stdbool.h>
#include "bufferobj.h"
#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 void
_mesa_init_transform_feedback_functions(struct dd_function_table *driver);
extern unsigned
_mesa_compute_max_transform_feedback_vertices( struct gl_context *ctx,
const struct gl_transform_feedback_object *obj,
const struct gl_transform_feedback_info *info);
/*** GL_EXT_transform_feedback ***/
void GLAPIENTRY
_mesa_BeginTransformFeedback_no_error(GLenum mode);
extern void GLAPIENTRY
_mesa_BeginTransformFeedback(GLenum mode);
void GLAPIENTRY
_mesa_EndTransformFeedback_no_error(void);
extern void GLAPIENTRY
_mesa_EndTransformFeedback(void);
extern bool
_mesa_validate_buffer_range_xfb(struct gl_context *ctx,
struct gl_transform_feedback_object *obj,
GLuint index, struct gl_buffer_object *bufObj,
GLintptr offset, GLsizeiptr size, bool dsa);
extern void
_mesa_bind_buffer_base_transform_feedback(struct gl_context *ctx,
struct gl_transform_feedback_object *obj,
GLuint index,
struct gl_buffer_object *bufObj,
bool dsa);
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 ***/
extern void
_mesa_init_transform_feedback_object(struct gl_transform_feedback_object *obj,
GLuint name);
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 void GLAPIENTRY
_mesa_CreateTransformFeedbacks(GLsizei n, GLuint *names);
extern GLboolean GLAPIENTRY
_mesa_IsTransformFeedback(GLuint name);
void GLAPIENTRY
_mesa_BindTransformFeedback_no_error(GLenum target, GLuint name);
extern void GLAPIENTRY
_mesa_BindTransformFeedback(GLenum target, GLuint name);
extern void GLAPIENTRY
_mesa_DeleteTransformFeedbacks(GLsizei n, const GLuint *names);
void GLAPIENTRY
_mesa_PauseTransformFeedback_no_error(void);
extern void GLAPIENTRY
_mesa_PauseTransformFeedback(void);
void GLAPIENTRY
_mesa_ResumeTransformFeedback_no_error(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;
}
extern bool
_mesa_transform_feedback_is_using_program(struct gl_context *ctx,
struct gl_shader_program *shProg);
static inline void
_mesa_set_transform_feedback_binding(struct gl_context *ctx,
struct gl_transform_feedback_object *tfObj, GLuint index,
struct gl_buffer_object *bufObj,
GLintptr offset, GLsizeiptr size)
{
_mesa_reference_buffer_object(ctx, &tfObj->Buffers[index], bufObj);
tfObj->BufferNames[index] = bufObj->Name;
tfObj->Offset[index] = offset;
tfObj->RequestedSize[index] = size;
if (bufObj != ctx->Shared->NullBufferObj)
bufObj->UsageHistory |= USAGE_TRANSFORM_FEEDBACK_BUFFER;
}
static inline void
_mesa_bind_buffer_range_xfb(struct gl_context *ctx,
struct gl_transform_feedback_object *obj,
GLuint index, struct gl_buffer_object *bufObj,
GLintptr offset, GLsizeiptr size)
{
/* Note: no need to FLUSH_VERTICES or flag NewTransformFeedback, because
* transform feedback buffers can't be changed while transform feedback is
* active.
*/
/* The general binding point */
_mesa_reference_buffer_object(ctx,
&ctx->TransformFeedback.CurrentBuffer,
bufObj);
/* The per-attribute binding point */
_mesa_set_transform_feedback_binding(ctx, obj, index, bufObj, offset, size);
}
/*** GL_ARB_direct_state_access ***/
extern void GLAPIENTRY
_mesa_TransformFeedbackBufferBase(GLuint xfb, GLuint index, GLuint buffer);
extern void GLAPIENTRY
_mesa_TransformFeedbackBufferRange(GLuint xfb, GLuint index, GLuint buffer,
GLintptr offset, GLsizeiptr size);
extern void GLAPIENTRY
_mesa_GetTransformFeedbackiv(GLuint xfb, GLenum pname, GLint *param);
extern void GLAPIENTRY
_mesa_GetTransformFeedbacki_v(GLuint xfb, GLenum pname, GLuint index,
GLint *param);
extern void GLAPIENTRY
_mesa_GetTransformFeedbacki64_v(GLuint xfb, GLenum pname, GLuint index,
GLint64 *param);
#endif /* TRANSFORM_FEEDBACK_H */
|
