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1 | /****************************************************************************** |
2 | * Arachnoid Graphics Plugin for Mupen64Plus |
3 | * http://bitbucket.org/wahrhaft/mupen64plus-video-arachnoid/ |
4 | * |
5 | * Copyright (C) 2007 Kristofer Karlsson, Rickard Niklasson |
6 | * |
7 | * This program is free software; you can redistribute it and/or |
8 | * modify it under the terms of the GNU General Public License |
9 | * as published by the Free Software Foundation; either version 2 |
10 | * of the License, or (at your option) any later version. |
11 | * |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * GNU General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program; if not, write to the Free Software |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
20 | *****************************************************************************/ |
21 | |
22 | #include "DummyCombiner.h" |
23 | #include "CombinerStructs.h" |
24 | #include "ExtensionChecker.h" |
25 | #include "MultiTexturingExt.h" |
26 | |
27 | //----------------------------------------------------------------------------- |
28 | //* Initialize |
29 | //! Checks if multitexturing is supported |
30 | //----------------------------------------------------------------------------- |
31 | void DummyCombiner::initialize() |
32 | { |
33 | ARB_multitexture = isExtensionSupported("GL_ARB_multitexture"); |
34 | } |
35 | |
36 | //----------------------------------------------------------------------------- |
37 | //* Create New Texture Enviroment |
38 | //! Allocates a new texture enviroment |
39 | //! @param[in] colorCombiner How to combine and get a color |
40 | //! @param[in] alphaCombiner How to combine and get an alpha value |
41 | //! @return The texture enviroment that was created |
42 | //----------------------------------------------------------------------------- |
43 | TexEnvCombiner* DummyCombiner::createNewTextureEnviroment(Combiner* colorCombiner, Combiner *alphaCombiner) |
44 | { |
45 | TexEnvCombiner* texEnv = new TexEnvCombiner(); |
46 | texEnv->usesT0 = false; |
47 | texEnv->usesT1 = false; |
48 | texEnv->mode = GL_REPLACE; |
49 | texEnv->vertex.color = COMBINED; |
50 | texEnv->vertex.alpha = COMBINED; |
51 | |
52 | //For each stage in alpha combiner |
53 | for (int i = 0; i < alphaCombiner->numStages; i++) |
54 | { |
55 | //For each operation in stage |
56 | for (int j = 0; j < alphaCombiner->stage[i].numOps; j++) |
57 | { |
58 | CombinerOp* op = &colorCombiner->stage[i].op[j]; |
59 | |
60 | if ( op->param1 == TEXEL0 ) |
61 | { |
62 | texEnv->usesT0 = true; |
63 | } |
64 | } |
65 | } |
66 | return texEnv; |
67 | } |
68 | |
69 | //----------------------------------------------------------------------------- |
70 | //* Set Texture Enviroment |
71 | //! Sets OpenGL (enables texturing) |
72 | //----------------------------------------------------------------------------- |
73 | void DummyCombiner::setTextureEnviroment(TexEnvCombiner* texEnv) |
74 | { |
75 | //Enable Texturing |
76 | if ( ARB_multitexture ) |
77 | glActiveTextureARB( GL_TEXTURE0_ARB ); |
78 | |
79 | if ( texEnv->usesT0 ) |
80 | glEnable( GL_TEXTURE_2D ); |
81 | else |
82 | glDisable( GL_TEXTURE_2D ); |
83 | } |