dlls/wined3d/nvidia_texture_shader.c

   1 /*
   2  * Fixed function pipeline replacement using GL_NV_register_combiners
   3  * and GL_NV_texture_shader
   4  *
   5  * Copyright 2006 Henri Verbeet
   6  * Copyright 2008 Stefan Dösinger(for CodeWeavers)
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22 #include "config.h"
  23
  24 #include <math.h>
  25 #include <stdio.h>
  26
  27 #include "wined3d_private.h"
  28
  29 WINE_DEFAULT_DEBUG_CHANNEL(d3d);
  30
  31 #define GLINFO_LOCATION (*gl_info)
  32 static void nvrc_enable(IWineD3DDevice *iface, BOOL enable) { }
  33
  34 static void nvts_enable(IWineD3DDevice *iface, BOOL enable) {
  35     if(enable) {
  36         glEnable(GL_TEXTURE_SHADER_NV);
  37         checkGLcall("glEnable(GL_TEXTURE_SHADER_NV)");
  38     } else {
  39         glDisable(GL_TEXTURE_SHADER_NV);
  40         checkGLcall("glDisable(GL_TEXTURE_SHADER_NV)");
  41     }
  42 }
  43
  44 static void nvrc_fragment_get_caps(WINED3DDEVTYPE devtype, WineD3D_GL_Info *gl_info, struct fragment_caps *pCaps) {
  45     pCaps->TextureOpCaps =  WINED3DTEXOPCAPS_ADD                        |
  46                             WINED3DTEXOPCAPS_ADDSIGNED                  |
  47                             WINED3DTEXOPCAPS_ADDSIGNED2X                |
  48                             WINED3DTEXOPCAPS_MODULATE                   |
  49                             WINED3DTEXOPCAPS_MODULATE2X                 |
  50                             WINED3DTEXOPCAPS_MODULATE4X                 |
  51                             WINED3DTEXOPCAPS_SELECTARG1                 |
  52                             WINED3DTEXOPCAPS_SELECTARG2                 |
  53                             WINED3DTEXOPCAPS_DISABLE                    |
  54                             WINED3DTEXOPCAPS_BLENDDIFFUSEALPHA          |
  55                             WINED3DTEXOPCAPS_BLENDTEXTUREALPHA          |
  56                             WINED3DTEXOPCAPS_BLENDFACTORALPHA           |
  57                             WINED3DTEXOPCAPS_BLENDCURRENTALPHA          |
  58                             WINED3DTEXOPCAPS_LERP                       |
  59                             WINED3DTEXOPCAPS_SUBTRACT                   |
  60                             WINED3DTEXOPCAPS_ADDSMOOTH                  |
  61                             WINED3DTEXOPCAPS_MULTIPLYADD                |
  62                             WINED3DTEXOPCAPS_MODULATEALPHA_ADDCOLOR     |
  63                             WINED3DTEXOPCAPS_MODULATECOLOR_ADDALPHA     |
  64                             WINED3DTEXOPCAPS_BLENDTEXTUREALPHAPM        |
  65                             WINED3DTEXOPCAPS_DOTPRODUCT3                |
  66                             WINED3DTEXOPCAPS_MODULATEINVALPHA_ADDCOLOR  |
  67                             WINED3DTEXOPCAPS_MODULATEINVCOLOR_ADDALPHA;
  68
  69     if(GL_SUPPORT(NV_TEXTURE_SHADER2)) {
  70         /* Bump mapping is supported already in NV_TEXTURE_SHADER, but that extension does
  71          * not support 3D textures. This asks for trouble if an app uses both bump mapping
  72          * and 3D textures. It also allows us to keep the code simpler by having texture
  73          * shaders constantly enabled.
  74          */
  75         pCaps->TextureOpCaps |= WINED3DTEXOPCAPS_BUMPENVMAP;
  76         /* TODO: Luminance bump map? */
  77     }
  78
  79 #if 0
  80     /* FIXME: Add
  81             pCaps->TextureOpCaps |= WINED3DTEXOPCAPS_BUMPENVMAPLUMINANCE
  82             WINED3DTEXOPCAPS_PREMODULATE */
  83 #endif
  84
  85     pCaps->MaxTextureBlendStages   = GL_LIMITS(texture_stages);
  86     pCaps->MaxSimultaneousTextures = GL_LIMITS(textures);
  87
  88     pCaps->PrimitiveMiscCaps |=  WINED3DPMISCCAPS_TSSARGTEMP;
  89
  90     /* The caps below can be supported but aren't handled yet in utils.c 'd3dta_to_combiner_input', disable them until support is fixed */
  91 #if 0
  92     if (GL_SUPPORT(NV_REGISTER_COMBINERS2))
  93     pCaps->PrimitiveMiscCaps |=  WINED3DPMISCCAPS_PERSTAGECONSTANT;
  94 #endif
  95 }
  96
  97 static HRESULT nvrc_fragment_alloc(IWineD3DDevice *iface) { return WINED3D_OK; }
  98 static void nvrc_fragment_free(IWineD3DDevice *iface) {}
  99
 100 /* Two fixed function pipeline implementations using GL_NV_register_combiners and
 101  * GL_NV_texture_shader. The nvts_fragment_pipeline assumes that both extensions
 102  * are available(geforce 3 and newer), while nvrc_fragment_pipeline uses only the
 103  * register combiners extension(Pre-GF3).
 104  */
 105 const struct fragment_pipeline nvts_fragment_pipeline = {
 106     nvts_enable,
 107     nvrc_fragment_get_caps,
 108     nvrc_fragment_alloc,
 109     nvrc_fragment_free,
 110     ffp_fragmentstate_template
 111 };
 112
 113 const struct fragment_pipeline nvrc_fragment_pipeline = {
 114     nvrc_enable,
 115     nvrc_fragment_get_caps,
 116     nvrc_fragment_alloc,
 117     nvrc_fragment_free,
 118     ffp_fragmentstate_template
 119 };