1 /*
2 * Copyright © 2012 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 static void
FN_NAME(struct gl_context * ctx,DST_TYPE * dst,GLenum dstFormat,SRC_TYPE rgba[][4],int n)25 FN_NAME(struct gl_context *ctx,
26 DST_TYPE *dst,
27 GLenum dstFormat,
28 SRC_TYPE rgba[][4],
29 int n)
30 {
31 int i;
32
33 switch (dstFormat) {
34 case GL_RED_INTEGER_EXT:
35 for (i=0;i<n;i++) {
36 dst[i] = SRC_CONVERT(rgba[i][RCOMP]);
37 }
38 break;
39
40 case GL_GREEN_INTEGER_EXT:
41 for (i=0;i<n;i++) {
42 dst[i] = SRC_CONVERT(rgba[i][GCOMP]);
43 }
44 break;
45
46 case GL_BLUE_INTEGER_EXT:
47 for (i=0;i<n;i++) {
48 dst[i] = SRC_CONVERT(rgba[i][BCOMP]);
49 };
50 break;
51
52 case GL_ALPHA_INTEGER_EXT:
53 for (i=0;i<n;i++) {
54 dst[i] = SRC_CONVERT(rgba[i][ACOMP]);
55 }
56 break;
57
58 case GL_RG_INTEGER:
59 for (i=0;i<n;i++) {
60 dst[i*2+0] = SRC_CONVERT(rgba[i][RCOMP]);
61 dst[i*2+1] = SRC_CONVERT(rgba[i][GCOMP]);
62 }
63 break;
64
65 case GL_RGB_INTEGER_EXT:
66 for (i=0;i<n;i++) {
67 dst[i*3+0] = SRC_CONVERT(rgba[i][RCOMP]);
68 dst[i*3+1] = SRC_CONVERT(rgba[i][GCOMP]);
69 dst[i*3+2] = SRC_CONVERT(rgba[i][BCOMP]);
70 }
71 break;
72
73 case GL_RGBA_INTEGER_EXT:
74 for (i=0;i<n;i++) {
75 dst[i*4+0] = SRC_CONVERT(rgba[i][RCOMP]);
76 dst[i*4+1] = SRC_CONVERT(rgba[i][GCOMP]);
77 dst[i*4+2] = SRC_CONVERT(rgba[i][BCOMP]);
78 dst[i*4+3] = SRC_CONVERT(rgba[i][ACOMP]);
79 }
80 break;
81
82 case GL_BGR_INTEGER_EXT:
83 for (i=0;i<n;i++) {
84 dst[i*3+0] = SRC_CONVERT(rgba[i][BCOMP]);
85 dst[i*3+1] = SRC_CONVERT(rgba[i][GCOMP]);
86 dst[i*3+2] = SRC_CONVERT(rgba[i][RCOMP]);
87 }
88 break;
89
90 case GL_BGRA_INTEGER_EXT:
91 for (i=0;i<n;i++) {
92 dst[i*4+0] = SRC_CONVERT(rgba[i][BCOMP]);
93 dst[i*4+1] = SRC_CONVERT(rgba[i][GCOMP]);
94 dst[i*4+2] = SRC_CONVERT(rgba[i][RCOMP]);
95 dst[i*4+3] = SRC_CONVERT(rgba[i][ACOMP]);
96 }
97 break;
98
99 case GL_LUMINANCE_INTEGER_EXT:
100 for (i=0;i<n;i++) {
101 dst[i] = SRC_CONVERT(rgba[i][RCOMP] +
102 rgba[i][GCOMP] +
103 rgba[i][BCOMP]);
104 }
105 break;
106
107 case GL_LUMINANCE_ALPHA_INTEGER_EXT:
108 for (i=0;i<n;i++) {
109 dst[i*2+0] = SRC_CONVERT(rgba[i][RCOMP] +
110 rgba[i][GCOMP] +
111 rgba[i][BCOMP]);
112 dst[i*2+1] = SRC_CONVERT(rgba[i][ACOMP]);
113 }
114 break;
115
116 default:
117 _mesa_problem(ctx,
118 "Unsupported format (%s)",
119 _mesa_lookup_enum_by_nr(dstFormat));
120 break;
121 }
122 }
123