| 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 "RSPLightManager.h" |
| 23 | #include "Memory.h" |
| 24 | #include "MathLib.h" |
| 25 | #include "GBI.h" |
| 26 | #include "Logger.h" |
| 27 | |
| 28 | #define RGBA_GETALPHA(rgb) ((rgb) >> 24) |
| 29 | #define RGBA_GETRED(rgb) (((rgb) >> 16) & 0xff) |
| 30 | #define RGBA_GETGREEN(rgb) (((rgb) >> 8) & 0xff) |
| 31 | #define RGBA_GETBLUE(rgb) ((rgb) & 0xff) |
| 32 | |
| 33 | //----------------------------------------------------------------------------- |
| 34 | //! Constructor |
| 35 | //----------------------------------------------------------------------------- |
| 36 | RSPLightManager::RSPLightManager() |
| 37 | { |
| 38 | } |
| 39 | |
| 40 | //----------------------------------------------------------------------------- |
| 41 | //! Destructor |
| 42 | //----------------------------------------------------------------------------- |
| 43 | RSPLightManager::~RSPLightManager() |
| 44 | { |
| 45 | } |
| 46 | |
| 47 | bool RSPLightManager::initialize(Memory* memory) |
| 48 | { |
| 49 | m_memory = memory; |
| 50 | m_numLights = 0; |
| 51 | m_lightEnabled = false; |
| 52 | |
| 53 | return true; |
| 54 | } |
| 55 | |
| 56 | //----------------------------------------------------------------------------- |
| 57 | // Set Light |
| 58 | //----------------------------------------------------------------------------- |
| 59 | void RSPLightManager::setLight( unsigned int lightIndex, unsigned int rdramAddress ) |
| 60 | { |
| 61 | //Error control |
| 62 | if ((rdramAddress + sizeof(RDRAMLight)) > m_memory->getRDRAMSize() ) { |
| 63 | return; |
| 64 | } |
| 65 | |
| 66 | //Get Light from memory |
| 67 | RDRAMLight* light = (RDRAMLight*)m_memory->getRDRAM(rdramAddress); |
| 68 | |
| 69 | if ( lightIndex < 8 ) //Only supports 8 lights |
| 70 | { |
| 71 | m_lights[lightIndex].r = light->r * 0.0039215689f; //Convert from 0-255 to 0-1 |
| 72 | m_lights[lightIndex].g = light->g * 0.0039215689f; |
| 73 | m_lights[lightIndex].b = light->b * 0.0039215689f; |
| 74 | |
| 75 | m_lights[lightIndex].x = light->x; |
| 76 | m_lights[lightIndex].y = light->y; |
| 77 | m_lights[lightIndex].z = light->z; |
| 78 | |
| 79 | Vec3Normalize( &m_lights[lightIndex].x ); |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | //----------------------------------------------------------------------------- |
| 84 | // Set Num Lights |
| 85 | //----------------------------------------------------------------------------- |
| 86 | void RSPLightManager::setNumLights(int numLights) |
| 87 | { |
| 88 | if (numLights <= 8) |
| 89 | { |
| 90 | m_numLights = numLights; |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | //----------------------------------------------------------------------------- |
| 95 | // Set Light Color |
| 96 | //----------------------------------------------------------------------------- |
| 97 | void RSPLightManager::setLightColor( unsigned int lightIndex, unsigned int packedColor ) |
| 98 | { |
| 99 | if (lightIndex < 8) |
| 100 | { |
| 101 | m_lights[lightIndex].r = _SHIFTR( packedColor, 24, 8 ) * 0.0039215689f; |
| 102 | m_lights[lightIndex].g = _SHIFTR( packedColor, 16, 8 ) * 0.0039215689f; |
| 103 | m_lights[lightIndex].b = _SHIFTR( packedColor, 8, 8 ) * 0.0039215689f; |
| 104 | } |
| 105 | } |