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   1 /*
   2 This file is part of the 3dengfx, realtime visualization system.
   3
   4 Copyright (c) 2004, 2005 John Tsiombikas <nuclear@siggraph.org>
   5
   6 3dengfx is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 3dengfx is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with 3dengfx; if not, write to the Free Software
  18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 */
  20
  21 /* enumerations and data structures for the low-level 3dengfx state
  22  *
  23  * Author: John Tsiombikas 2004
  24  */
  25
  26 #ifndef _3DENGINEFX_TYPES_HPP_
  27 #define _3DENGINEFX_TYPES_HPP_
  28
  29 #include "opengl.h"
  30 #include "n3dmath2/n3dmath2_types.hpp"
  31
  32 enum ShadeMode {
  33         SHADING_FLAT = GL_FLAT,
  34         SHADING_GOURAUD = GL_SMOOTH
  35 };
  36
  37 #ifdef COORD_LHS
  38 enum FaceOrder {ORDER_CW = GL_CW, ORDER_CCW = GL_CCW};
  39 #else
  40 enum FaceOrder {ORDER_CW = GL_CCW, ORDER_CCW = GL_CW};
  41 #endif
  42
  43 enum PrimitiveType {
  44         TRIANGLE_LIST   = GL_TRIANGLES,
  45         TRIANGLE_STRIP  = GL_TRIANGLE_STRIP,
  46         TRIANGLE_FAN    = GL_TRIANGLE_FAN,
  47         LINE_LIST               = GL_LINES,
  48         LINE_STRIP              = GL_LINE_STRIP,
  49         LINE_LOOP               = GL_LINE_LOOP,
  50         POINT_LIST              = GL_POINTS,
  51         QUAD_LIST               = GL_QUADS,
  52         QUAD_STRIP              = GL_QUAD_STRIP
  53 };
  54
  55 enum BlendingFactor {
  56         BLEND_ZERO                                      = GL_ZERO,
  57         BLEND_ONE                                       = GL_ONE,
  58         BLEND_SRC_COLOR                         = GL_SRC_COLOR,
  59         BLEND_ONE_MINUS_SRC_COLOR       = GL_ONE_MINUS_SRC_COLOR,
  60         BLEND_SRC_ALPHA                         = GL_SRC_ALPHA,
  61         BLEND_ONE_MINUS_SRC_ALPHA       = GL_ONE_MINUS_SRC_ALPHA,
  62         BLEND_ONE_MINUS_DST_COLOR       = GL_ONE_MINUS_DST_COLOR
  63 };
  64
  65 enum TextureBlendFunction {
  66         TOP_REPLACE                     = GL_REPLACE,
  67         TOP_ADD                         = GL_ADD,
  68         TOP_ADDSIGNED           = GL_ADD_SIGNED,
  69         TOP_SUBTRACT            = GL_SUBTRACT,
  70         TOP_MODULATE            = GL_MODULATE,
  71         TOP_LERP                        = GL_INTERPOLATE,
  72         TOP_DOT3                        = GL_DOT3_RGB,
  73         TOP_DOT3_RGBA           = GL_DOT3_RGBA
  74 };
  75
  76 enum TextureBlendArgument {
  77         TARG_TEXTURE    = GL_TEXTURE,
  78         TARG_CONSTANT   = GL_CONSTANT,
  79         TARG_COLOR              = GL_PRIMARY_COLOR,
  80         TARG_PREV               = GL_PREVIOUS,
  81         TARG_NONE
  82 };
  83
  84 enum CmpFunc {
  85         CMP_NEVER               = GL_NEVER,
  86     CMP_LESS            = GL_LESS,
  87     CMP_EQUAL           = GL_EQUAL,
  88     CMP_LEQUAL          = GL_LEQUAL,
  89     CMP_GREATER         = GL_GREATER,
  90     CMP_NOTEQUAL        = GL_NOTEQUAL,
  91     CMP_GEQUAL          = GL_GEQUAL,
  92     CMP_ALWAYS          = GL_ALWAYS
  93 };
  94
  95 enum StencilOp {
  96         SOP_KEEP                = GL_KEEP,
  97     SOP_ZERO            = GL_ZERO,
  98     SOP_REPLACE         = GL_REPLACE,
  99     SOP_INCSAT          = GL_INCR,
 100     SOP_DECSAT          = GL_DECR,
 101     SOP_INVERT          = GL_INVERT,
 102     SOP_INC                     = GL_INCR,      // TODO: find a way to let these wrap around
 103     SOP_DEC                     = GL_DECR       //
 104 };
 105
 106 enum TextureFilteringType {
 107         POINT_SAMPLING,
 108         BILINEAR_FILTERING,
 109         TRILINEAR_FILTERING,
 110         ANISOTROPIC_FILTERING
 111 };
 112
 113 enum TextureAddressing {
 114         TEXADDR_WRAP                    = GL_REPEAT,
 115         //TexAddrMirror                 = D3DTADDRESS_MIRROR,
 116         TEXADDR_CLAMP                   = GL_CLAMP_TO_EDGE,
 117         TEXADDR_CLAMP_BORDER    = GL_CLAMP
 118         //TexAddrMirrorOnce             = D3DTADDRESS_MIRRORONCE
 119 };
 120
 121 enum TextureDim {
 122         TEX_1D          = GL_TEXTURE_1D,
 123         TEX_2D          = GL_TEXTURE_2D,
 124         TEX_3D          = GL_TEXTURE_3D,
 125         TEX_CUBE        = GL_TEXTURE_CUBE_MAP
 126 };
 127
 128 enum CubeMapFace {
 129         CUBE_MAP_PX             = GL_TEXTURE_CUBE_MAP_POSITIVE_X,
 130         CUBE_MAP_NX             = GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
 131         CUBE_MAP_PY             = GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
 132         CUBE_MAP_NY             = GL_TEXTURE_CUBE_MAP_NEGATIVE_Y,
 133         CUBE_MAP_PZ             = GL_TEXTURE_CUBE_MAP_POSITIVE_Z,
 134         CUBE_MAP_NZ             = GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
 135 };
 136
 137 class GfxProg;
 138
 139 #define DONT_CARE_BPP           1       // 0001
 140 #define DONT_CARE_DEPTH         2       // 0010
 141 #define DONT_CARE_STENCIL       4       // 0100
 142
 143 struct GraphicsInitParameters {
 144         int x, y;
 145         int bpp;
 146         int depth_bits;
 147         int stencil_bits;
 148         bool fullscreen;
 149         unsigned short dont_care_flags;
 150 };
 151
 152 struct ProgCaps {
 153         bool shader_obj;
 154         bool asm_pixel, asm_vertex;
 155         bool glslang;
 156         bool glsl_pixel, glsl_vertex;
 157 };
 158
 159 struct SysCaps {
 160         bool multitex;
 161         bool load_transpose;
 162         bool gen_mipmaps;
 163         bool tex_combine_ops;
 164         bool bump_dot3;
 165         bool bump_env;
 166         bool vertex_buffers;
 167         bool depth_texture;
 168         bool shadow_mapping;
 169         bool point_sprites;
 170         bool point_params;
 171         int max_texture_units;
 172         bool non_power_of_two_textures;
 173         int max_lights;
 174         ProgCaps prog;
 175 };
 176
 177 enum TransformType {
 178         XFORM_WORLD,
 179         XFORM_VIEW,
 180         XFORM_PROJECTION,
 181         XFORM_TEXTURE
 182 };
 183
 184
 185
 186
 187 #endif  // _3DENGINEFX_TYPES_HPP_