X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Ftexture.cpp;h=f1689145c8af9c5754569213a7561b0505e63b2c;hp=fe27a04d9ddd830fa93f21d51052ec0ffc0da8cd;hb=56beca9d8b4f7b4edac81411d31e24df88e84ac3;hpb=6f8c0c6c088be92804cb413c0234bfb817ef2d8d diff --git a/source/texture.cpp b/source/texture.cpp index fe27a04d..f1689145 100644 --- a/source/texture.cpp +++ b/source/texture.cpp @@ -1,10 +1,13 @@ +#include #include +#include #include #include #include #include #include #include +#include "bindable.h" #include "error.h" #include "resourcemanager.h" #include "resources.h" @@ -48,21 +51,33 @@ 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), + mipmap_levels(0), + max_anisotropy(1.0f), wrap_s(REPEAT), wrap_t(REPEAT), wrap_r(REPEAT), - gen_mipmap(false), + auto_gen_mipmap(0), compare(false), cmp_func(LEQUAL), dirty_params(0) { if(m) set_manager(m); + else if(ARB_direct_state_access) + glCreateTextures(target, 1, &id); else glGenTextures(1, &id); } @@ -81,9 +96,44 @@ 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 +146,58 @@ 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, auto_gen_mipmap!=0); 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); + } + } + if(mask&MIPMAP_LEVELS) + set_parameter_i(GL_TEXTURE_MAX_LEVEL, (mipmap_levels ? mipmap_levels-1 : 1000)); +} + +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) @@ -133,6 +218,12 @@ void Texture::set_filter(TextureFilter f) set_mag_filter(f==NEAREST ? NEAREST : LINEAR); } +void Texture::set_mipmap_levels(unsigned l) +{ + mipmap_levels = l; + update_parameter(MIPMAP_LEVELS); +} + void Texture::set_max_anisotropy(float a) { if(a<1.0f) @@ -140,7 +231,8 @@ 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) @@ -170,20 +262,37 @@ void Texture::set_wrap_r(TextureWrap w) update_parameter(WRAP_R); } -void Texture::set_generate_mipmap(bool gm) +bool Texture::can_generate_mipmap() { - if(gm && !EXT_framebuffer_object) - static Require _req(SGIS_generate_mipmap); - gen_mipmap = gm; - if(!EXT_framebuffer_object) - update_parameter(GENERATE_MIPMAP); + return (EXT_framebuffer_object || SGIS_generate_mipmap); } -void Texture::auto_generate_mipmap() +void Texture::generate_mipmap() { // glGenerateMipmap is defined here - if(EXT_framebuffer_object) + static Require _req(EXT_framebuffer_object); + + if(ARB_direct_state_access) + glGenerateTextureMipmap(id); + else + { + BindRestore _bind(this); glGenerateMipmap(target); + } +} + +void Texture::set_auto_generate_mipmap(bool gm) +{ + if(EXT_framebuffer_object) + auto_gen_mipmap = gm; + else + { + if(gm) + static Require _req(SGIS_generate_mipmap); + + auto_gen_mipmap = gm*2; + update_parameter(GENERATE_MIPMAP); + } } void Texture::set_compare_enabled(bool c) @@ -209,7 +318,7 @@ 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) { @@ -222,22 +331,30 @@ 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) { @@ -256,15 +373,26 @@ 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) @@ -292,6 +420,7 @@ void Texture::Loader::init() add("mag_filter", &Loader::mag_filter); add("max_anisotropy", &Loader::max_anisotropy); add("min_filter", &Loader::min_filter); + add("mipmap_levels", &Loader::mipmap_levels); add("wrap", &Loader::wrap); add("wrap_r", &Loader::wrap_r); add("wrap_s", &Loader::wrap_s); @@ -302,6 +431,8 @@ void Texture::Loader::external_image(const string &fn) { Graphics::Image img; RefPtr io = get_collection().open_raw(fn); + if(!io) + throw IO::file_not_found(fn); img.load_io(*io); obj.image(img, srgb); @@ -314,7 +445,7 @@ void Texture::Loader::filter(TextureFilter f) void Texture::Loader::generate_mipmap(bool gm) { - obj.set_generate_mipmap(gm); + obj.set_auto_generate_mipmap(gm); } void Texture::Loader::image_data(const string &data) @@ -341,6 +472,11 @@ void Texture::Loader::min_filter(TextureFilter f) obj.set_min_filter(f); } +void Texture::Loader::mipmap_levels(unsigned l) +{ + obj.set_mipmap_levels(l); +} + void Texture::Loader::wrap(TextureWrap w) { obj.set_wrap(w);