X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Ftexture.cpp;h=22bdebdfd2a02eca284a0183c29a2f942b7a1631;hb=7d7a8f9e77a526fd5f2920b9005805e56a4b686c;hp=d12e18e0fa4766efd60bf46ff594376f7796b546;hpb=7adcad3b40a03000a82e32db4523761c218309b8;p=libs%2Fgl.git diff --git a/source/texture.cpp b/source/texture.cpp index d12e18e0..22bdebdf 100644 --- a/source/texture.cpp +++ b/source/texture.cpp @@ -1,70 +1,333 @@ +#include +#include +#include +#include +#include +#include +#include "error.h" +#include "resourcemanager.h" +#include "resources.h" #include "texture.h" +#include "texunit.h" + +using namespace std; namespace Msp { namespace GL { -void Texture::bind() const +void operator>>(const LexicalConverter &c, TextureFilter &tf) +{ + if(c.get()=="NEAREST") + tf = NEAREST; + else if(c.get()=="LINEAR") + tf = LINEAR; + else if(c.get()=="NEAREST_MIPMAP_NEAREST") + tf = NEAREST_MIPMAP_NEAREST; + else if(c.get()=="NEAREST_MIPMAP_LINEAR") + tf = NEAREST_MIPMAP_LINEAR; + else if(c.get()=="LINEAR_MIPMAP_NEAREST") + tf = LINEAR_MIPMAP_NEAREST; + else if(c.get()=="LINEAR_MIPMAP_LINEAR") + tf = LINEAR_MIPMAP_LINEAR; + else + throw lexical_error(format("conversion of '%s' to TextureFilter", c.get())); +} + + +void operator>>(const LexicalConverter &c, TextureWrap &tw) { - if(!target) return; + if(c.get()=="REPEAT") + tw = REPEAT; + else if(c.get()=="CLAMP_TO_EDGE") + tw = CLAMP_TO_EDGE; + else if(c.get()=="MIRRORED_REPEAT") + tw = MIRRORED_REPEAT; + else + throw lexical_error(format("conversion of '%s' to TextureWrap", c.get())); +} + - glEnable(target); - glBindTexture(target, id); - bound=this; +Texture::Texture(GLenum t, ResourceManager *m): + id(0), + target(t), + min_filter(NEAREST_MIPMAP_LINEAR), + mag_filter(LINEAR), + wrap_s(REPEAT), + wrap_t(REPEAT), + wrap_r(REPEAT), + gen_mipmap(false), + compare(false), + cmp_func(LEQUAL), + dirty_params(0) +{ + if(m) + set_manager(m); + else + glGenTextures(1, &id); } -void Texture::parameter(GLenum param, int value) +Texture::~Texture() { - if(bound!=this) bind(); + while(TexUnit *unit = TexUnit::find_unit(this)) + unbind_from(unit->get_index()); - glTexParameteri(target, param, value); + if(id) + glDeleteTextures(1, &id); } -void Texture::parameter(GLenum param, float value) +void Texture::update_parameter(int mask) const { - if(bound!=this) bind(); + if(TexUnit::current().get_texture()!=this) + { + TexUnit *unit = TexUnit::find_unit(this); + if(!unit) + { + dirty_params |= mask; + return; + } + + unit->bind(); + } - glTexParameterf(target, param, value); + if(mask&MIN_FILTER) + glTexParameteri(target, GL_TEXTURE_MIN_FILTER, min_filter); + if(mask&MAG_FILTER) + glTexParameteri(target, GL_TEXTURE_MAG_FILTER, mag_filter); + if(mask&MAX_ANISOTROPY) + glTexParameteri(target, GL_TEXTURE_MAX_ANISOTROPY_EXT, max_anisotropy); + if(mask&WRAP_S) + glTexParameteri(target, GL_TEXTURE_WRAP_S, wrap_s); + if(mask&WRAP_T) + glTexParameteri(target, GL_TEXTURE_WRAP_T, wrap_t); + if(mask&WRAP_R) + glTexParameteri(target, GL_TEXTURE_WRAP_R, wrap_r); + if(mask&GENERATE_MIPMAP) + glTexParameteri(target, GL_GENERATE_MIPMAP, gen_mipmap); + if(mask&COMPARE) + glTexParameteri(target, GL_TEXTURE_COMPARE_MODE, (compare ? GL_COMPARE_R_TO_TEXTURE : GL_NONE)); + if(mask&COMPARE_FUNC) + glTexParameteri(target, GL_TEXTURE_COMPARE_FUNC, cmp_func); } -sizei Texture::get_width(int level) const +void Texture::set_min_filter(TextureFilter f) { - if(bound!=this) bind(); + min_filter = f; + update_parameter(MIN_FILTER); +} - int width; - glGetTexLevelParameteriv(target, level, GL_TEXTURE_WIDTH, &width); - return width; +void Texture::set_mag_filter(TextureFilter f) +{ + mag_filter = f; + update_parameter(MAG_FILTER); +} + +void Texture::set_filter(TextureFilter f) +{ + set_min_filter(f); + set_mag_filter(f==NEAREST ? NEAREST : LINEAR); } -sizei Texture::get_height(int level) const +void Texture::set_max_anisotropy(float a) { - if(bound!=this) bind(); + if(a<1.0f) + throw invalid_argument("Texture::set_max_anisotropy"); + else if(a>1.0f) + static Require _req(EXT_texture_filter_anisotropic); + max_anisotropy = a; + update_parameter(MAX_ANISOTROPY); +} - int height; - glGetTexLevelParameteriv(target, level, GL_TEXTURE_HEIGHT, &height); - return height; +void Texture::set_wrap(TextureWrap w) +{ + set_wrap_s(w); + set_wrap_t(w); + if(EXT_texture3D) + set_wrap_r(w); } -sizei Texture::get_depth(int level) const +void Texture::set_wrap_s(TextureWrap w) { - if(bound!=this) bind(); + wrap_s = w; + update_parameter(WRAP_S); +} - int depth; - glGetTexLevelParameteriv(target, level, GL_TEXTURE_DEPTH, &depth); - return depth; +void Texture::set_wrap_t(TextureWrap w) +{ + wrap_t = w; + update_parameter(WRAP_T); } -Texture::~Texture() +void Texture::set_wrap_r(TextureWrap w) +{ + static Require _req(EXT_texture3D); + wrap_r = w; + update_parameter(WRAP_R); +} + +void Texture::set_generate_mipmap(bool gm) +{ + if(gm) + static Require _req(SGIS_generate_mipmap); + gen_mipmap = gm; + if(get_gl_api()!=OPENGL_ES2) + update_parameter(GENERATE_MIPMAP); +} + +void Texture::auto_generate_mipmap() +{ + if(get_gl_api()==OPENGL_ES2) + { + // glGenerateMipmap is defined here + static Require _req(EXT_framebuffer_object); + glGenerateMipmap(target); + } +} + +void Texture::set_compare_enabled(bool c) +{ + static Require _req(ARB_shadow); + compare = c; + update_parameter(COMPARE); +} + +void Texture::set_compare_func(Predicate f) +{ + static Require _req(ARB_shadow); + cmp_func = f; + update_parameter(COMPARE_FUNC); +} + +void Texture::bind_to(unsigned i) const +{ + if(!id) + { + if(manager) + manager->resource_used(*this); + if(!id) + { + unbind_from(i); + return; + } + } + + TexUnit &unit = TexUnit::get_unit(i); + const Texture *old = unit.get_texture(); + if(unit.set_texture(this)) + { + if(manager) + manager->resource_used(*this); + + unit.bind(); + if(unit.supports_legacy()) + { + if(old && old->target!=target) + glDisable(old->target); + if(!old || old->target!=target) + glEnable(target); + } + glBindTexture(target, id); + + if(dirty_params) + { + update_parameter(dirty_params); + dirty_params = 0; + } + } +} + +const Texture *Texture::current(unsigned i) +{ + return TexUnit::get_unit(i).get_texture(); +} + +void Texture::unbind_from(unsigned i) +{ + TexUnit &unit = TexUnit::get_unit(i); + const Texture *cur = unit.get_texture(); + if(unit.set_texture(0)) + { + unit.bind(); + glBindTexture(cur->target, 0); + if(unit.supports_legacy()) + glDisable(cur->target); + } +} + + +Texture::Loader::Loader(Texture &t): + DataFile::CollectionObjectLoader(t, 0) +{ + init(); +} + +Texture::Loader::Loader(Texture &t, Collection &c): + DataFile::CollectionObjectLoader(t, &c) +{ + init(); +} + +void Texture::Loader::init() { - glDeleteTextures(1, &id); + if(Resources *res = dynamic_cast(coll)) + srgb = res->get_srgb_conversion(); + else + srgb = false; + + add("filter", &Loader::filter); + add("max_anisotropy", &Loader::max_anisotropy); + add("generate_mipmap", &Loader::generate_mipmap); + add("mag_filter", &Loader::mag_filter); + add("min_filter", &Loader::min_filter); + add("wrap", &Loader::wrap); + add("wrap_r", &Loader::wrap_r); + add("wrap_s", &Loader::wrap_s); + add("wrap_t", &Loader::wrap_t); } -Texture::Texture(): - target(0) +void Texture::Loader::filter(TextureFilter f) { - glGenTextures(1, &id); + obj.set_filter(f); } -const Texture *Texture::bound=0; +void Texture::Loader::generate_mipmap(bool gm) +{ + obj.set_generate_mipmap(gm); +} + +void Texture::Loader::mag_filter(TextureFilter f) +{ + obj.set_mag_filter(f); +} + +void Texture::Loader::max_anisotropy(float a) +{ + obj.set_max_anisotropy(a); +} + +void Texture::Loader::min_filter(TextureFilter f) +{ + obj.set_min_filter(f); +} + +void Texture::Loader::wrap(TextureWrap w) +{ + obj.set_wrap(w); +} + +void Texture::Loader::wrap_r(TextureWrap w) +{ + obj.set_wrap_r(w); +} + +void Texture::Loader::wrap_s(TextureWrap w) +{ + obj.set_wrap_s(w); +} + +void Texture::Loader::wrap_t(TextureWrap w) +{ + obj.set_wrap_t(w); +} } // namespace GL } // namespace Msp