X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Ftexture.cpp;h=f1689145c8af9c5754569213a7561b0505e63b2c;hp=b8c14792dad403e9fd98e2885dc99188fd17be80;hb=HEAD;hpb=47f817343df1d06d91a4f7c4d5b47df40b24366c diff --git a/source/texture.cpp b/source/texture.cpp deleted file mode 100644 index b8c14792..00000000 --- a/source/texture.cpp +++ /dev/null @@ -1,493 +0,0 @@ -#include -#include -#include -#include -#include -#include -#include -#include -#include "bindable.h" -#include "error.h" -#include "resourcemanager.h" -#include "resources.h" -#include "texture.h" -#include "texunit.h" - -using namespace std; - -namespace Msp { -namespace GL { - -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(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())); -} - - -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), - auto_gen_mipmap(false), - 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); -} - -Texture::~Texture() -{ - while(TexUnit *unit = TexUnit::find_unit(this)) - unbind_from(unit->get_index()); - - if(id) - glDeleteTextures(1, &id); -} - -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) -{ - FormatSwizzle swiz = NO_SWIZZLE; - if(ARB_texture_rg && ARB_texture_swizzle) - { - if(fmt==LUMINANCE) - { - fmt = RED; - swiz = R_TO_LUMINANCE; - } - else if(fmt==LUMINANCE_ALPHA) - { - fmt = RG; - swiz = RG_TO_LUMINANCE_ALPHA; - } - } - - if(!get_component_size(fmt) && OES_required_internalformat) - fmt = get_default_sized_pixelformat(fmt); - - 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(!id) - { - dirty_params |= mask; - return; - } - - if(!ARB_direct_state_access && TexUnit::current().get_texture()!=this) - { - TexUnit *unit = TexUnit::find_unit(this); - if(!unit) - { - dirty_params |= mask; - return; - } - - unit->bind(); - } - - if(mask&MIN_FILTER) - set_parameter_i(GL_TEXTURE_MIN_FILTER, min_filter); - if(mask&MAG_FILTER) - set_parameter_i(GL_TEXTURE_MAG_FILTER, mag_filter); - if(mask&MAX_ANISOTROPY) - set_parameter_f(GL_TEXTURE_MAX_ANISOTROPY_EXT, max_anisotropy); - if(mask&WRAP_S) - set_parameter_i(GL_TEXTURE_WRAP_S, wrap_s); - if(mask&WRAP_T) - set_parameter_i(GL_TEXTURE_WRAP_T, wrap_t); - if(mask&WRAP_R) - set_parameter_i(GL_TEXTURE_WRAP_R, wrap_r); - if(mask&COMPARE) - set_parameter_i(GL_TEXTURE_COMPARE_MODE, (compare ? GL_COMPARE_R_TO_TEXTURE : GL_NONE)); - if(mask&COMPARE_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) -{ - min_filter = f; - update_parameter(MIN_FILTER); -} - -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); -} - -void Texture::set_max_anisotropy(float a) -{ - 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; - if(EXT_texture_filter_anisotropic) - update_parameter(MAX_ANISOTROPY); -} - -void Texture::set_wrap(TextureWrap w) -{ - set_wrap_s(w); - set_wrap_t(w); - if(EXT_texture3D) - set_wrap_r(w); -} - -void Texture::set_wrap_s(TextureWrap w) -{ - wrap_s = w; - update_parameter(WRAP_S); -} - -void Texture::set_wrap_t(TextureWrap w) -{ - wrap_t = w; - update_parameter(WRAP_T); -} - -void Texture::set_wrap_r(TextureWrap w) -{ - static Require _req(EXT_texture3D); - wrap_r = w; - update_parameter(WRAP_R); -} - -bool Texture::can_generate_mipmap() -{ - return EXT_framebuffer_object; -} - -void Texture::generate_mipmap() -{ - // glGenerateMipmap is defined here - 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(gm) - static Require _req(EXT_framebuffer_object); - - auto_gen_mipmap = gm; -} - -void Texture::set_compare_enabled(bool c) -{ - if(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::load_image(const string &fn, bool srgb) -{ - load_image(fn, 0, srgb); -} - -void Texture::load_image(const string &fn, unsigned lv, bool srgb) -{ - Graphics::Image img; - img.load_file(fn); - - image(img, lv, srgb); -} - -void Texture::image(const Graphics::Image &img, bool srgb) -{ - image(img, 0, srgb); -} - -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); - if(unit.set_texture(this)) - { - if(manager) - manager->resource_used(*this); - - if(ARB_direct_state_access) - glBindTextureUnit(i, id); - else - { - unit.bind(); - 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)) - { - if(ARB_direct_state_access) - glBindTextureUnit(i, 0); - else - { - unit.bind(); - glBindTexture(cur->target, 0); - } - } -} - - -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() -{ - levels = 0; - if(Resources *res = dynamic_cast(coll)) - srgb = res->get_srgb_conversion(); - else - srgb = false; - - add("external_image", &Loader::external_image); - add("filter", &Loader::filter); - add("generate_mipmap", &Loader::generate_mipmap); - add("image_data", &Loader::image_data); - 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); - add("wrap_t", &Loader::wrap_t); -} - -unsigned Texture::Loader::get_levels() const -{ - return (is_mipmapped(obj.default_sampler.get_min_filter()) ? levels : 1); -} - -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, get_levels(), srgb); -} - -void Texture::Loader::filter(TextureFilter f) -{ - obj.set_filter(f); -} - -void Texture::Loader::generate_mipmap(bool gm) -{ - obj.set_auto_generate_mipmap(gm); -} - -void Texture::Loader::image_data(const string &data) -{ - Graphics::Image img; - IO::Memory mem(data.data(), data.size()); - img.load_io(mem); - - obj.image(img, get_levels(), srgb); -} - -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::mipmap_levels(unsigned l) -{ - levels = l; -} - -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); -} - - -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