// SuperTuxKart - a fun racing game with go-kart // Copyright (C) 2014-2015 SuperTuxKart-Team // (C) 2015 Joerg Henrichs // // This program is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License // as published by the Free Software Foundation; either version 3 // of the License, or (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. #ifndef SERVER_ONLY #include "graphics/texture_shader.hpp" #include "graphics/central_settings.hpp" #include "config/user_config.hpp" TextureShaderBase::BindFunction TextureShaderBase::m_all_bind_functions[] = { /* ST_NEAREST_FILTERED */ &TextureShaderBase::bindTextureNearest, /* ST_TRILINEAR_ANISOTROPIC_FILTERED */ &TextureShaderBase::bindTextureTrilinearAnisotropic, /* ST_TRILINEAR_CUBEMAP */ &TextureShaderBase::bindCubemapTrilinear, /* ST_BILINEAR_FILTERED */ &TextureShaderBase::bindTextureBilinear, /* ST_SHADOW_SAMPLER */ &TextureShaderBase::bindTextureShadow, /* ST_TRILINEAR_CLAMPED_ARRAY2D */ &TextureShaderBase::bindTrilinearClampedArrayTexture, /* ST_VOLUME_LINEAR_FILTERED */ &TextureShaderBase::bindTextureVolume, /* ST_NEARED_CLAMPED_FILTERED */ &TextureShaderBase::bindTextureNearestClamped, /* ST_BILINEAR_CLAMPED_FILTERED */ &TextureShaderBase::bindTextureBilinearClamped, /* ST_SEMI_TRILINEAR */ &TextureShaderBase::bindTextureSemiTrilinear, /* ST_TEXTURE_BUFFER */ &TextureShaderBase::bindTextureBuffer }; GLuint TextureShaderBase::m_all_texture_types[] = { /* ST_NEAREST_FILTERED */ GL_TEXTURE_2D, /* ST_TRILINEAR_ANISOTROPIC_FILTERED */ GL_TEXTURE_2D, /* ST_TRILINEAR_CUBEMAP */ GL_TEXTURE_CUBE_MAP, /* ST_BILINEAR_FILTERED */ GL_TEXTURE_2D , /* ST_SHADOW_SAMPLER */ GL_TEXTURE_2D_ARRAY, /* ST_TRILINEAR_CLAMPED_ARRAY2D */ GL_TEXTURE_2D_ARRAY, /* ST_VOLUME_LINEAR_FILTERED */ GL_TEXTURE_3D, /* ST_NEARED_CLAMPED_FILTERED */ GL_TEXTURE_2D, /* ST_BILINEAR_CLAMPED_FILTERED */ GL_TEXTURE_2D, /* ST_SEMI_TRILINEAR */ GL_TEXTURE_2D #ifndef USE_GLES2 /* ST_TEXTURE_BUFFER */, GL_TEXTURE_BUFFER #endif }; // ---------------------------------------------------------------------------- void TextureShaderBase::bindTextureNearest(GLuint texture_unit, GLuint tex) { glActiveTexture(GL_TEXTURE0 + texture_unit); glBindTexture(GL_TEXTURE_2D, tex); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); if (CVS->isEXTTextureFilterAnisotropicUsable()) glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.); } // bindTextureNearest // ---------------------------------------------------------------------------- void TextureShaderBase::bindTextureTrilinearAnisotropic(GLuint tex_unit, GLuint tex) { glActiveTexture(GL_TEXTURE0 + tex_unit); glBindTexture(GL_TEXTURE_2D, tex); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); if (CVS->isEXTTextureFilterAnisotropicUsable()) { int aniso = UserConfigParams::m_anisotropic; if (aniso == 0) aniso = 1; glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, (float)aniso); } } // bindTextureTrilinearAnisotropic // ---------------------------------------------------------------------------- void TextureShaderBase::bindCubemapTrilinear(unsigned tex_unit, unsigned tex) { glActiveTexture(GL_TEXTURE0 + tex_unit); glBindTexture(GL_TEXTURE_CUBE_MAP, tex); glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_REPEAT); glTexParameteri(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_REPEAT); if (CVS->isEXTTextureFilterAnisotropicUsable()) { int aniso = UserConfigParams::m_anisotropic; if (aniso == 0) aniso = 1; glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAX_ANISOTROPY_EXT, (float)aniso); } } // bindCubemapTrilinear // ---------------------------------------------------------------------------- void TextureShaderBase::bindTextureNearestClamped(GLuint texture_unit, GLuint tex_id) { glActiveTexture(GL_TEXTURE0 + texture_unit); glBindTexture(GL_TEXTURE_2D, tex_id); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); if (CVS->isEXTTextureFilterAnisotropicUsable()) glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.); } // bindTextureNearestClamped // ---------------------------------------------------------------------------- void TextureShaderBase::bindTextureBuffer(GLuint texture_unit, GLuint tex_id) { #ifndef USE_GLES2 glActiveTexture(GL_TEXTURE0 + texture_unit); glBindTexture(GL_TEXTURE_BUFFER, tex_id); #endif } // bindTextureBuffer // ---------------------------------------------------------------------------- void TextureShaderBase::bindTextureBilinear(GLuint texture_unit, GLuint tex) { glActiveTexture(GL_TEXTURE0 + texture_unit); glBindTexture(GL_TEXTURE_2D, tex); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); if (CVS->isEXTTextureFilterAnisotropicUsable()) glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.); } // bindTextureBilinear // ---------------------------------------------------------------------------- void TextureShaderBase::bindTextureBilinearClamped(GLuint tex_unit, GLuint tex) { glActiveTexture(GL_TEXTURE0 + tex_unit); glBindTexture(GL_TEXTURE_2D, tex); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); if (CVS->isEXTTextureFilterAnisotropicUsable()) glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.); } // bindTextureBilinearClamped // ---------------------------------------------------------------------------- void TextureShaderBase::bindTextureSemiTrilinear(GLuint tex_unit, GLuint tex_id) { glActiveTexture(GL_TEXTURE0 + tex_unit); glBindTexture(GL_TEXTURE_2D, tex_id); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); if (CVS->isEXTTextureFilterAnisotropicUsable()) glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.); } // bindTextureSemiTrilinear // ---------------------------------------------------------------------------- void TextureShaderBase::bindTextureShadow(GLuint tex_unit, GLuint tex_id) { glActiveTexture(GL_TEXTURE0 + tex_unit); glBindTexture(GL_TEXTURE_2D_ARRAY, tex_id); glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); glTexParameterf(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_REF_TO_TEXTURE); glTexParameterf(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL); } // bindTextureShadow // ---------------------------------------------------------------------------- void TextureShaderBase::bindTrilinearClampedArrayTexture(unsigned tex_unit, unsigned tex_id) { glActiveTexture(GL_TEXTURE0 + tex_unit); glBindTexture(GL_TEXTURE_2D_ARRAY, tex_id); glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); if (CVS->isEXTTextureFilterAnisotropicUsable()) { int aniso = UserConfigParams::m_anisotropic; if (aniso == 0) aniso = 1; glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAX_ANISOTROPY_EXT, (float)aniso); } } // bindTrilinearClampedArrayTexture // ---------------------------------------------------------------------------- void TextureShaderBase::bindTextureVolume(unsigned tex_unit, unsigned tex_id) { glActiveTexture(GL_TEXTURE0 + tex_unit); glBindTexture(GL_TEXTURE_3D, tex_id); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); if (CVS->isEXTTextureFilterAnisotropicUsable()) glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.); } // bindTextureVolume // ---------------------------------------------------------------------------- GLuint TextureShaderBase::createSamplers(SamplerTypeNew sampler_type) { switch (sampler_type) { case ST_NEAREST_FILTERED: return createNearestSampler(); case ST_TRILINEAR_ANISOTROPIC_FILTERED: return createTrilinearSampler(); case ST_TRILINEAR_CUBEMAP: return createTrilinearSampler(); case ST_BILINEAR_FILTERED: return createBilinearSampler(); case ST_SHADOW_SAMPLER: return createShadowSampler(); case ST_TRILINEAR_CLAMPED_ARRAY2D: return createTrilinearClampedArray(); case ST_VOLUME_LINEAR_FILTERED: return createBilinearSampler(); case ST_NEARED_CLAMPED_FILTERED: { // WHAT'S THAT?????????????????? unsigned id; glGenSamplers(1, &id); glSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glSamplerParameteri(id, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glSamplerParameteri(id, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); if (CVS->isEXTTextureFilterAnisotropicUsable()) glSamplerParameterf(id, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.); return createNearestSampler(); } case ST_BILINEAR_CLAMPED_FILTERED: return createBilinearClampedSampler(); case ST_SEMI_TRILINEAR: return createSemiTrilinearSampler(); #ifndef USE_GLES2 case ST_TEXTURE_BUFFER: return 0; #endif default: assert(false); return 0; } // switch } // createSamplers // ---------------------------------------------------------------------------- GLuint TextureShaderBase::createNearestSampler() { unsigned id; glGenSamplers(1, &id); glSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glSamplerParameteri(id, GL_TEXTURE_WRAP_S, GL_REPEAT); glSamplerParameteri(id, GL_TEXTURE_WRAP_T, GL_REPEAT); if (CVS->isEXTTextureFilterAnisotropicUsable()) glSamplerParameterf(id, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.); return id; } // createNearestSampler // ---------------------------------------------------------------------------- GLuint TextureShaderBase::createTrilinearSampler() { unsigned id; glGenSamplers(1, &id); glSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); glSamplerParameteri(id, GL_TEXTURE_WRAP_S, GL_REPEAT); glSamplerParameteri(id, GL_TEXTURE_WRAP_T, GL_REPEAT); if (CVS->isEXTTextureFilterAnisotropicUsable()) { int aniso = UserConfigParams::m_anisotropic; if (aniso == 0) aniso = 1; glSamplerParameterf(id, GL_TEXTURE_MAX_ANISOTROPY_EXT, (float)aniso); } return id; } // createTrilinearSampler // ---------------------------------------------------------------------------- GLuint TextureShaderBase::createBilinearSampler() { unsigned id; glGenSamplers(1, &id); glSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glSamplerParameteri(id, GL_TEXTURE_WRAP_S, GL_REPEAT); glSamplerParameteri(id, GL_TEXTURE_WRAP_T, GL_REPEAT); if (CVS->isEXTTextureFilterAnisotropicUsable()) glSamplerParameterf(id, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.); return id; } // createBilinearSampler // ---------------------------------------------------------------------------- GLuint TextureShaderBase::createShadowSampler() { unsigned id; glGenSamplers(1, &id); glSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); glSamplerParameteri(id, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glSamplerParameteri(id, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); glSamplerParameterf(id, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_REF_TO_TEXTURE); glSamplerParameterf(id, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL); return id; } // createShadowSampler // ---------------------------------------------------------------------------- GLuint TextureShaderBase::createBilinearClampedSampler() { unsigned id; glGenSamplers(1, &id); glSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, GL_LINEAR); glSamplerParameteri(id, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glSamplerParameteri(id, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); if (CVS->isEXTTextureFilterAnisotropicUsable()) glSamplerParameterf(id, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.); return id; } // createBilinearClampedSampler // ---------------------------------------------------------------------------- GLuint TextureShaderBase::createTrilinearClampedArray() { unsigned id; glGenSamplers(1, &id); glSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR); glSamplerParameteri(id, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glSamplerParameteri(id, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); if (CVS->isEXTTextureFilterAnisotropicUsable()) { int aniso = UserConfigParams::m_anisotropic; if (aniso == 0) aniso = 1; glSamplerParameterf(id, GL_TEXTURE_MAX_ANISOTROPY_EXT, (float)aniso); } return id; } // createTrilinearClampedArray // ---------------------------------------------------------------------------- GLuint TextureShaderBase::createSemiTrilinearSampler() { unsigned id; glGenSamplers(1, &id); glSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, GL_LINEAR); glSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST); glSamplerParameteri(id, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glSamplerParameteri(id, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); if (CVS->isEXTTextureFilterAnisotropicUsable()) glSamplerParameterf(id, GL_TEXTURE_MAX_ANISOTROPY_EXT, 1.); return id; } // createSemiTrilinearSampler // ---------------------------------------------------------------------------- // ---------------------------------------------------------------------------- #endif // !SERVER_ONLY