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
|
/**
* \file blend.h
* Blending functions operations.
*/
/*
* 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.
*/
#ifndef BLEND_H
#define BLEND_H
#include "glheader.h"
#include "context.h"
#include "formats.h"
#include "extensions.h"
struct gl_context;
struct gl_framebuffer;
extern void GLAPIENTRY
_mesa_BlendFunc( GLenum sfactor, GLenum dfactor );
extern void GLAPIENTRY
_mesa_BlendFuncSeparate( GLenum sfactorRGB, GLenum dfactorRGB,
GLenum sfactorA, GLenum dfactorA );
extern void GLAPIENTRY
_mesa_BlendFunciARB_no_error(GLuint buf, GLenum sfactor, GLenum dfactor);
extern void GLAPIENTRY
_mesa_BlendFunciARB(GLuint buf, GLenum sfactor, GLenum dfactor);
extern void GLAPIENTRY
_mesa_BlendFuncSeparateiARB_no_error(GLuint buf, GLenum sfactorRGB,
GLenum dfactorRGB, GLenum sfactorA,
GLenum dfactorA);
extern void GLAPIENTRY
_mesa_BlendFuncSeparateiARB(GLuint buf, GLenum sfactorRGB, GLenum dfactorRGB,
GLenum sfactorA, GLenum dfactorA);
extern void GLAPIENTRY
_mesa_BlendEquation( GLenum mode );
extern void GLAPIENTRY
_mesa_BlendEquationiARB(GLuint buf, GLenum mode);
extern void GLAPIENTRY
_mesa_BlendEquationSeparate( GLenum modeRGB, GLenum modeA );
extern void GLAPIENTRY
_mesa_BlendEquationSeparateiARB_no_error(GLuint buf, GLenum modeRGB,
GLenum modeA);
extern void GLAPIENTRY
_mesa_BlendEquationSeparateiARB(GLuint buf, GLenum modeRGB, GLenum modeA);
extern void GLAPIENTRY
_mesa_BlendColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
extern void GLAPIENTRY
_mesa_AlphaFunc( GLenum func, GLclampf ref );
extern void GLAPIENTRY
_mesa_LogicOp( GLenum opcode );
extern void GLAPIENTRY
_mesa_LogicOp_no_error(GLenum opcode);
extern void GLAPIENTRY
_mesa_IndexMask( GLuint mask );
extern void GLAPIENTRY
_mesa_ColorMask( GLboolean red, GLboolean green,
GLboolean blue, GLboolean alpha );
extern void GLAPIENTRY
_mesa_ColorMaski( GLuint buf, GLboolean red, GLboolean green,
GLboolean blue, GLboolean alpha );
extern void GLAPIENTRY
_mesa_ClampColor(GLenum target, GLenum clamp);
extern GLboolean
_mesa_get_clamp_fragment_color(const struct gl_context *ctx,
const struct gl_framebuffer *drawFb);
extern GLboolean
_mesa_get_clamp_vertex_color(const struct gl_context *ctx,
const struct gl_framebuffer *drawFb);
extern GLboolean
_mesa_get_clamp_read_color(const struct gl_context *ctx,
const struct gl_framebuffer *readFb);
extern void
_mesa_update_clamp_fragment_color(struct gl_context *ctx,
const struct gl_framebuffer *drawFb);
extern void
_mesa_update_clamp_vertex_color(struct gl_context *ctx,
const struct gl_framebuffer *drawFb);
extern mesa_format
_mesa_get_render_format(const struct gl_context *ctx, mesa_format format);
extern void
_mesa_init_color( struct gl_context * ctx );
static inline void
_mesa_flush_vertices_for_blend_state(struct gl_context *ctx)
{
/* The advanced blend mode needs _NEW_COLOR to update the state constant,
* so we have to set it. This is inefficient.
* This should only be done for states that affect the state constant.
* It shouldn't be done for other blend states.
*/
if (_mesa_has_KHR_blend_equation_advanced(ctx) ||
!ctx->DriverFlags.NewBlend) {
FLUSH_VERTICES(ctx, _NEW_COLOR);
} else {
FLUSH_VERTICES(ctx, 0);
}
ctx->NewDriverState |= ctx->DriverFlags.NewBlend;
}
#endif
|
