X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Ftexture.cpp;h=820dd10fd90318c64278ae9b0aed66cf227d8743;hp=fd14458553417d2b5d2b0dc71d036e2434f9efbf;hb=7af837734a28a14b3e24a421187d12ecd16572d0;hpb=0221e39a685c4f3122a0fae032a7888b5ce40579 diff --git a/source/texture.cpp b/source/texture.cpp index fd144585..820dd10f 100644 --- a/source/texture.cpp +++ b/source/texture.cpp @@ -1,4 +1,6 @@ +#include #include +#include #include #include #include @@ -48,11 +50,20 @@ void operator>>(const LexicalConverter &c, TextureWrap &tw) } +int Texture::swizzle_orders[] = +{ + GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA, + GL_RED, GL_RED, GL_RED, GL_ONE, + GL_RED, GL_RED, GL_RED, GL_GREEN +}; + Texture::Texture(GLenum t, ResourceManager *m): id(0), target(t), + ifmt(RGB), min_filter(NEAREST_MIPMAP_LINEAR), mag_filter(LINEAR), + max_anisotropy(1.0f), wrap_s(REPEAT), wrap_t(REPEAT), wrap_r(REPEAT), @@ -63,6 +74,8 @@ Texture::Texture(GLenum t, ResourceManager *m): { if(m) set_manager(m); + else if(ARB_direct_state_access) + glCreateTextures(target, 1, &id); else glGenTextures(1, &id); } @@ -81,9 +94,44 @@ DataType Texture::get_alloc_type(PixelFormat fmt) return (get_base_pixelformat(fmt)==DEPTH_COMPONENT ? UNSIGNED_SHORT : UNSIGNED_BYTE); } +void Texture::set_internal_format(PixelFormat fmt) +{ + if(!get_component_size(fmt) && OES_required_internalformat) + fmt = get_default_sized_pixelformat(fmt); + + FormatSwizzle swiz = NO_SWIZZLE; + if(ARB_texture_rg && ARB_texture_swizzle) + { + if(fmt==LUMINANCE8 || fmt==SLUMINANCE8) + { + fmt = R8; + swiz = R_TO_LUMINANCE; + } + else if(fmt==LUMINANCE8_ALPHA8 || fmt==SLUMINANCE8_ALPHA8) + { + fmt = RG8; + swiz = RG_TO_LUMINANCE_ALPHA; + } + } + + require_pixelformat(fmt); + ifmt = fmt; + swizzle = swiz; + if(swizzle) + update_parameter(FORMAT_SWIZZLE); +} + +PixelFormat Texture::get_upload_format(PixelFormat fmt) const +{ + if(fmt==LUMINANCE || fmt==LUMINANCE_ALPHA) + return get_base_pixelformat(ifmt); + else + return fmt; +} + void Texture::update_parameter(int mask) const { - if(TexUnit::current().get_texture()!=this) + if(!ARB_direct_state_access && TexUnit::current().get_texture()!=this) { TexUnit *unit = TexUnit::find_unit(this); if(!unit) @@ -96,23 +144,56 @@ void Texture::update_parameter(int mask) const } if(mask&MIN_FILTER) - glTexParameteri(target, GL_TEXTURE_MIN_FILTER, min_filter); + set_parameter_i(GL_TEXTURE_MIN_FILTER, min_filter); if(mask&MAG_FILTER) - glTexParameteri(target, GL_TEXTURE_MAG_FILTER, mag_filter); + set_parameter_i(GL_TEXTURE_MAG_FILTER, mag_filter); if(mask&MAX_ANISOTROPY) - glTexParameteri(target, GL_TEXTURE_MAX_ANISOTROPY_EXT, max_anisotropy); + set_parameter_f(GL_TEXTURE_MAX_ANISOTROPY_EXT, max_anisotropy); if(mask&WRAP_S) - glTexParameteri(target, GL_TEXTURE_WRAP_S, wrap_s); + set_parameter_i(GL_TEXTURE_WRAP_S, wrap_s); if(mask&WRAP_T) - glTexParameteri(target, GL_TEXTURE_WRAP_T, wrap_t); + set_parameter_i(GL_TEXTURE_WRAP_T, wrap_t); if(mask&WRAP_R) - glTexParameteri(target, GL_TEXTURE_WRAP_R, wrap_r); + set_parameter_i(GL_TEXTURE_WRAP_R, wrap_r); if(mask&GENERATE_MIPMAP) - glTexParameteri(target, GL_GENERATE_MIPMAP, gen_mipmap); + set_parameter_i(GL_GENERATE_MIPMAP, gen_mipmap); if(mask&COMPARE) - glTexParameteri(target, GL_TEXTURE_COMPARE_MODE, (compare ? GL_COMPARE_R_TO_TEXTURE : GL_NONE)); + set_parameter_i(GL_TEXTURE_COMPARE_MODE, (compare ? GL_COMPARE_R_TO_TEXTURE : GL_NONE)); if(mask&COMPARE_FUNC) - glTexParameteri(target, GL_TEXTURE_COMPARE_FUNC, cmp_func); + set_parameter_i(GL_TEXTURE_COMPARE_FUNC, cmp_func); + if(mask&FORMAT_SWIZZLE) + { + if(get_gl_api()==OPENGL_ES2) + { + set_parameter_i(GL_TEXTURE_SWIZZLE_R, swizzle_orders[swizzle*4]); + set_parameter_i(GL_TEXTURE_SWIZZLE_G, swizzle_orders[swizzle*4+1]); + set_parameter_i(GL_TEXTURE_SWIZZLE_B, swizzle_orders[swizzle*4+2]); + set_parameter_i(GL_TEXTURE_SWIZZLE_A, swizzle_orders[swizzle*4+3]); + } + else + { + if(ARB_direct_state_access) + glTextureParameteriv(id, GL_TEXTURE_SWIZZLE_RGBA, swizzle_orders+swizzle*4); + else + glTexParameteriv(target, GL_TEXTURE_SWIZZLE_RGBA, swizzle_orders+swizzle*4); + } + } +} + +void Texture::set_parameter_i(GLenum param, int value) const +{ + if(ARB_direct_state_access) + glTextureParameteri(id, param, value); + else + glTexParameteri(target, param, value); +} + +void Texture::set_parameter_f(GLenum param, float value) const +{ + if(ARB_direct_state_access) + glTextureParameterf(id, param, value); + else + glTexParameterf(target, param, value); } void Texture::set_min_filter(TextureFilter f) @@ -140,7 +221,8 @@ void Texture::set_max_anisotropy(float a) else if(a>1.0f) static Require _req(EXT_texture_filter_anisotropic); max_anisotropy = a; - update_parameter(MAX_ANISOTROPY); + if(EXT_texture_filter_anisotropic) + update_parameter(MAX_ANISOTROPY); } void Texture::set_wrap(TextureWrap w) @@ -170,22 +252,29 @@ void Texture::set_wrap_r(TextureWrap w) update_parameter(WRAP_R); } +bool Texture::can_generate_mipmap() +{ + return (EXT_framebuffer_object || SGIS_generate_mipmap); +} + void Texture::set_generate_mipmap(bool gm) { - if(gm) + if(gm && !EXT_framebuffer_object) static Require _req(SGIS_generate_mipmap); gen_mipmap = gm; - if(get_gl_api()!=OPENGL_ES2) + if(!EXT_framebuffer_object) update_parameter(GENERATE_MIPMAP); } void Texture::auto_generate_mipmap() { - if(get_gl_api()==OPENGL_ES2) + // glGenerateMipmap is defined here + if(EXT_framebuffer_object) { - // glGenerateMipmap is defined here - static Require _req(EXT_framebuffer_object); - glGenerateMipmap(target); + if(ARB_direct_state_access) + glGenerateTextureMipmap(id); + else + glGenerateMipmap(target); } } @@ -212,7 +301,7 @@ void Texture::load_image(const string &fn, bool srgb) image(img, srgb); } -void Texture::bind_to(unsigned i) const +void Texture::bind_to(unsigned i, bool legacy) const { if(!id) { @@ -225,22 +314,30 @@ void Texture::bind_to(unsigned i) const } } + legacy = (legacy && is_legacy_target(target)); + TexUnit &unit = TexUnit::get_unit(i); const Texture *old = unit.get_texture(); - if(unit.set_texture(this)) + bool old_legacy = unit.get_texture_legacy(); + if(unit.set_texture(this, legacy)) { if(manager) manager->resource_used(*this); - unit.bind(); - if(unit.supports_legacy()) + if(ARB_direct_state_access && !old_legacy && (!unit.supports_legacy() || !legacy)) + glBindTextureUnit(i, id); + else { - if(old && old->target!=target) - glDisable(old->target); - if(!old || old->target!=target) - glEnable(target); + unit.bind(); + if(unit.supports_legacy()) + { + if(old && old->target!=target && old_legacy) + glDisable(old->target); + if((!old || old->target!=target) && legacy) + glEnable(target); + } + glBindTexture(target, id); } - glBindTexture(target, id); if(dirty_params) { @@ -259,15 +356,26 @@ void Texture::unbind_from(unsigned i) { TexUnit &unit = TexUnit::get_unit(i); const Texture *cur = unit.get_texture(); + bool legacy = unit.get_texture_legacy(); if(unit.set_texture(0)) { - unit.bind(); - glBindTexture(cur->target, 0); - if(unit.supports_legacy()) - glDisable(cur->target); + if(ARB_direct_state_access && !legacy) + glBindTextureUnit(i, 0); + else + { + unit.bind(); + glBindTexture(cur->target, 0); + if(unit.supports_legacy() && legacy) + glDisable(cur->target); + } } } +bool Texture::is_legacy_target(GLenum target) +{ + return target(t, 0) @@ -364,5 +472,12 @@ void Texture::Loader::wrap_t(TextureWrap w) obj.set_wrap_t(w); } + +bool is_mipmapped(TextureFilter filter) +{ + return (filter==NEAREST_MIPMAP_NEAREST || filter==NEAREST_MIPMAP_LINEAR || + filter==LINEAR_MIPMAP_NEAREST || filter==LINEAR_MIPMAP_LINEAR); +} + } // namespace GL } // namespace Msp