1 /*
2 * Mesa 3-D graphics library
3 *
4 * Copyright (C) 2016 Ilia Mirkin. All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26 /**
27 * \file bbox.c
28 * glPrimitiveBoundingBox function
29 */
30
31 #include "bbox.h"
32 #include "context.h"
33 #include "api_exec_decl.h"
34
35 void GLAPIENTRY
_mesa_PrimitiveBoundingBox(GLfloat minX,GLfloat minY,GLfloat minZ,GLfloat minW,GLfloat maxX,GLfloat maxY,GLfloat maxZ,GLfloat maxW)36 _mesa_PrimitiveBoundingBox(
37 GLfloat minX, GLfloat minY, GLfloat minZ, GLfloat minW,
38 GLfloat maxX, GLfloat maxY, GLfloat maxZ, GLfloat maxW)
39 {
40 GET_CURRENT_CONTEXT(ctx);
41
42 ctx->PrimitiveBoundingBox[0] = minX;
43 ctx->PrimitiveBoundingBox[1] = minY;
44 ctx->PrimitiveBoundingBox[2] = minZ;
45 ctx->PrimitiveBoundingBox[3] = minW;
46 ctx->PrimitiveBoundingBox[4] = maxX;
47 ctx->PrimitiveBoundingBox[5] = maxY;
48 ctx->PrimitiveBoundingBox[6] = maxZ;
49 ctx->PrimitiveBoundingBox[7] = maxW;
50 }
51
52 void
_mesa_init_bbox(struct gl_context * ctx)53 _mesa_init_bbox(struct gl_context *ctx)
54 {
55 ctx->PrimitiveBoundingBox[0] =
56 ctx->PrimitiveBoundingBox[1] =
57 ctx->PrimitiveBoundingBox[2] = -1.0f;
58
59 ctx->PrimitiveBoundingBox[3] =
60 ctx->PrimitiveBoundingBox[4] =
61 ctx->PrimitiveBoundingBox[5] =
62 ctx->PrimitiveBoundingBox[6] =
63 ctx->PrimitiveBoundingBox[7] = 1.0f;
64 }
65