aboutsummaryrefslogtreecommitdiffstats
path: root/src/mesa/drivers/allegro/direct.h
blob: 3998fc19d7bc0d424c5ca9b395c61599acc329a6 (plain)
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
/*
 * Mesa 3-D graphics library
 * Version:  3.0
 * Copyright (C) 1995-1998  Brian Paul
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */


#define DESTINATION(BMP, X, Y, TYPE)                                \
    ({                                                              \
    BITMAP *_bmp = BMP;                                             \
                                                                    \
    (TYPE*)(_bmp->line[_bmp->h - (Y) - 1]) + (X);                   \
    })


#define IMPLEMENT_WRITE_RGBA_SPAN(DEPTH, TYPE)                                                   \
static void write_rgba_span_##DEPTH (const GLcontext *ctx,                                       \
                                     GLuint n, GLint x, GLint y,                                 \
                                     const GLubyte rgba[][4],                                    \
                                     const GLubyte mask[])                                       \
    {                                                                                            \
    AMesaContext context = (AMesaContext)(ctx->DriverCtx);                                       \
    TYPE              *d = DESTINATION(context->Buffer->Active, x, y, TYPE);                     \
                                                                                                 \
    if (mask)                                                                                    \
        {                                                                                        \
        while (n--)                                                                              \
            {                                                                                    \
            if (mask[0]) d[0] = makecol##DEPTH(rgba[0][RCOMP], rgba[0][GCOMP], rgba[0][BCOMP]);  \
            d++; rgba++; mask++;                                                                 \
            }                                                                                    \
        }                                                                                        \
    else                                                                                         \
        {                                                                                        \
        while (n--)                                                                              \
            {                                                                                    \
            d[0] = makecol##DEPTH(rgba[0][RCOMP], rgba[0][GCOMP], rgba[0][BCOMP]);               \
            d++; rgba++;                                                                         \
            }                                                                                    \
        }                                                                                        \
    }


#define IMPLEMENT_WRITE_RGB_SPAN(DEPTH, TYPE)                                                    \
static void write_rgb_span_##DEPTH (const GLcontext *ctx,                                        \
                                    GLuint n, GLint x, GLint y,                                  \
                                    const GLubyte rgb[][3],                                      \
                                    const GLubyte mask[])                                        \
    {                                                                                            \
    AMesaContext context = (AMesaContext)(ctx->DriverCtx);                                       \
    TYPE              *d = DESTINATION(context->Buffer->Active, x, y, TYPE);                     \
                                                                                                 \
    if (mask)                                                                                    \
        {                                                                                        \
        while (n--)                                                                              \
            {                                                                                    \
            if (mask[0]) d[0] = makecol##DEPTH(rgb[0][RCOMP], rgb[0][GCOMP], rgb[0][BCOMP]);     \
            d++; rgb++; mask++;                                                                  \
            }                                                                                    \
        }                                                                                        \
    else                                                                                         \
        {                                                                                        \
        while (n--)                                                                              \
            {                                                                                    \
            d[0] = makecol##DEPTH(rgb[0][RCOMP], rgb[0][GCOMP], rgb[0][BCOMP]);                  \
            d++; rgb++;                                                                          \
            }                                                                                    \
        }                                                                                        \
    }


#define IMPLEMENT_WRITE_MONO_RGBA_SPAN(DEPTH, TYPE)                                              \
static void write_mono_rgba_span_##DEPTH (const GLcontext *ctx,                                  \
                                          GLuint n, GLint x, GLint y,                            \
                                          const GLubyte mask[])                                  \
    {                                                                                            \
    AMesaContext context = (AMesaContext)(ctx->DriverCtx);                                       \
    TYPE           color = context->CurrentColor;                                                \
    TYPE              *d = DESTINATION(context->Buffer->Active, x, y, TYPE);                     \
                                                                                                 \
    while (n--)                                                                                  \
        {                                                                                        \
        if (mask[0]) d[0] = color;                                                               \
        d++; mask++;                                                                             \
        }                                                                                        \
    }


#define IMPLEMENT_READ_RGBA_SPAN(DEPTH, TYPE)                           \
static void read_rgba_span_##DEPTH (const GLcontext *ctx,				\
                                    GLuint n, GLint x, GLint y,			\
                                    GLubyte rgba[][4])					\
    {																	\
    AMesaContext context = (AMesaContext)(ctx->DriverCtx);				\
    BITMAP          *bmp = context->Buffer->Active;                     \
    TYPE              *d = DESTINATION(bmp, x, y, TYPE);                \
                                                                        \
    while (n--)                                                         \
        {                                                               \
        rgba[0][RCOMP] = getr##DEPTH(d[0]);                             \
        rgba[0][GCOMP] = getg##DEPTH(d[0]);                             \
        rgba[0][BCOMP] = getb##DEPTH(d[0]);                             \
        rgba[0][ACOMP] = 255;                                           \
                                                                        \
        d++; rgba++;                                                    \
        }                                                               \
    }


#define IMPLEMENT_WRITE_RGBA_PIXELS(DEPTH, TYPE)                                                                                 \
static void write_rgba_pixels_##DEPTH (const GLcontext *ctx,                                                                     \
                                       GLuint n,                                                                                 \
                                       const GLint x[],                                                                          \
                                       const GLint y[],                                                                          \
                                       const GLubyte rgba[][4],                                                                  \
                                       const GLubyte mask[])                                                                     \
    {                                                                                                                            \
    AMesaContext context = (AMesaContext)(ctx->DriverCtx);                                                                       \
    BITMAP          *bmp = context->Buffer->Active;                                                                              \
                                                                                                                                 \
    while (n--)                                                                                                                  \
        {                                                                                                                        \
        if (mask[0]) *DESTINATION(bmp, x[0], y[0], TYPE) = makecol##DEPTH(rgba[0][RCOMP], rgba[0][GCOMP], rgba[0][BCOMP]);       \
        rgba++; x++; y++; mask++;                                                                                                \
        }                                                                                                                        \
    }



#define IMPLEMENT_WRITE_MONO_RGBA_PIXELS(DEPTH, TYPE)                                                                            \
static void write_mono_rgba_pixels_##DEPTH (const GLcontext *ctx,                                                                \
                                            GLuint n,                                                                            \
                                            const GLint x[],                                                                     \
                                            const GLint y[],                                                                     \
                                            const GLubyte mask[])                                                                \
    {                                                                                                                            \
    AMesaContext context = (AMesaContext)(ctx->DriverCtx);                                                                       \
    TYPE          color  = context->CurrentColor;                                                                                \
    BITMAP          *bmp = context->Buffer->Active;                                                                              \
                                                                                                                                 \
    while (n--)                                                                                                                  \
        {                                                                                                                        \
        if (mask[0]) *DESTINATION(bmp, x[0], y[0], TYPE) = color;                                                                \
        x++; y++; mask++;                                                                                                        \
        }                                                                                                                        \
    }


#define IMPLEMENT_READ_RGBA_PIXELS(DEPTH, TYPE)                         \
static void read_rgba_pixels_##DEPTH (const GLcontext *ctx,				\
                              		  GLuint n,							\
                              		  const GLint x[],					\
                              		  const GLint y[],					\
                              		  GLubyte rgba[][4],				\
                              		  const GLubyte mask[])				\
    {																	\
    AMesaContext context = (AMesaContext)(ctx->DriverCtx);				\
    BITMAP          *bmp = context->Buffer->Active;                     \
                                                                        \
    while (n--)                                                         \
        {                                                               \
        if (mask[0])                                                    \
            {                                                           \
            int color = *DESTINATION(bmp, x[0], y[0], TYPE);            \
                                                                        \
            rgba[0][RCOMP] = getr##DEPTH(color);                        \
            rgba[0][GCOMP] = getg##DEPTH(color);                        \
            rgba[0][BCOMP] = getb##DEPTH(color);                        \
            rgba[0][ACOMP] = 255;                                       \
            }                                                           \
                                                                        \
        x++; y++; rgba++; mask++;                                       \
        }                                                               \
    }