blob: ff02239e58849f7ffa626a64b5cdd6ac2694a596 (
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
|
#include "intel_context.h"
#include "intel_tex.h"
#include "texformat.h"
#include "enums.h"
/* It works out that this function is fine for all the supported
* hardware. However, there is still a need to map the formats onto
* hardware descriptors.
*/
/* Note that the i915 can actually support many more formats than
* these if we take the step of simply swizzling the colors
* immediately after sampling...
*/
const struct gl_texture_format *
intelChooseTextureFormat( GLcontext *ctx, GLint internalFormat,
GLenum format, GLenum type )
{
struct intel_context *intel = intel_context( ctx );
const GLboolean do32bpt = (intel->intelScreen->cpp == 4);
switch ( internalFormat ) {
case 4:
case GL_RGBA:
case GL_COMPRESSED_RGBA:
if ( format == GL_BGRA ) {
if ( type == GL_UNSIGNED_INT_8_8_8_8_REV ) {
return &_mesa_texformat_argb8888;
}
else if ( type == GL_UNSIGNED_SHORT_4_4_4_4_REV ) {
return &_mesa_texformat_argb4444;
}
else if ( type == GL_UNSIGNED_SHORT_1_5_5_5_REV ) {
return &_mesa_texformat_argb1555;
}
}
return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_argb4444;
case 3:
case GL_RGB:
case GL_COMPRESSED_RGB:
if ( format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5 ) {
return &_mesa_texformat_rgb565;
}
return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_rgb565;
case GL_RGBA8:
case GL_RGB10_A2:
case GL_RGBA12:
case GL_RGBA16:
return do32bpt ? &_mesa_texformat_argb8888 : &_mesa_texformat_argb4444;
case GL_RGBA4:
case GL_RGBA2:
return &_mesa_texformat_argb4444;
case GL_RGB5_A1:
return &_mesa_texformat_argb1555;
case GL_RGB8:
case GL_RGB10:
case GL_RGB12:
case GL_RGB16:
return &_mesa_texformat_argb8888;
case GL_RGB5:
case GL_RGB4:
case GL_R3_G3_B2:
return &_mesa_texformat_rgb565;
case GL_ALPHA:
case GL_ALPHA4:
case GL_ALPHA8:
case GL_ALPHA12:
case GL_ALPHA16:
case GL_COMPRESSED_ALPHA:
return &_mesa_texformat_a8;
case 1:
case GL_LUMINANCE:
case GL_LUMINANCE4:
case GL_LUMINANCE8:
case GL_LUMINANCE12:
case GL_LUMINANCE16:
case GL_COMPRESSED_LUMINANCE:
return &_mesa_texformat_l8;
case 2:
case GL_LUMINANCE_ALPHA:
case GL_LUMINANCE4_ALPHA4:
case GL_LUMINANCE6_ALPHA2:
case GL_LUMINANCE8_ALPHA8:
case GL_LUMINANCE12_ALPHA4:
case GL_LUMINANCE12_ALPHA12:
case GL_LUMINANCE16_ALPHA16:
case GL_COMPRESSED_LUMINANCE_ALPHA:
return &_mesa_texformat_al88;
case GL_INTENSITY:
case GL_INTENSITY4:
case GL_INTENSITY8:
case GL_INTENSITY12:
case GL_INTENSITY16:
case GL_COMPRESSED_INTENSITY:
return &_mesa_texformat_i8;
case GL_YCBCR_MESA:
if (type == GL_UNSIGNED_SHORT_8_8_MESA ||
type == GL_UNSIGNED_BYTE)
return &_mesa_texformat_ycbcr;
else
return &_mesa_texformat_ycbcr_rev;
case GL_COMPRESSED_RGB_FXT1_3DFX:
return &_mesa_texformat_rgb_fxt1;
case GL_COMPRESSED_RGBA_FXT1_3DFX:
return &_mesa_texformat_rgba_fxt1;
case GL_RGB_S3TC:
case GL_RGB4_S3TC:
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
return &_mesa_texformat_rgb_dxt1;
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
return &_mesa_texformat_rgba_dxt1;
case GL_RGBA_S3TC:
case GL_RGBA4_S3TC:
case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
return &_mesa_texformat_rgba_dxt3;
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
return &_mesa_texformat_rgba_dxt5;
case GL_DEPTH_COMPONENT:
case GL_DEPTH_COMPONENT16:
case GL_DEPTH_COMPONENT24:
case GL_DEPTH_COMPONENT32:
return &_mesa_texformat_depth_component16;
default:
fprintf(stderr, "unexpected texture format %s in %s\n",
_mesa_lookup_enum_by_nr(internalFormat),
__FUNCTION__);
return NULL;
}
return NULL; /* never get here */
}
|
