X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Ftexture.cpp;h=719d4a56ac029218cbd176ac076644865fc20c72;hp=3bd1df67068123a256b7ff7b8067c71f8ff7a1ca;hb=91d3eac06389c0bb0363f643790581403b5fca1b;hpb=619aae12e01f25e79626a94c973927e5599e99a5 diff --git a/source/texture.cpp b/source/texture.cpp index 3bd1df67..719d4a56 100644 --- a/source/texture.cpp +++ b/source/texture.cpp @@ -1,7 +1,15 @@ +#include +#include +#include +#include +#include #include #include +#include #include #include "error.h" +#include "resourcemanager.h" +#include "resources.h" #include "texture.h" #include "texunit.h" @@ -42,10 +50,21 @@ void operator>>(const LexicalConverter &c, TextureWrap &tw) } -Texture::Texture(GLenum t): +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), @@ -54,39 +73,130 @@ Texture::Texture(GLenum t): cmp_func(LEQUAL), dirty_params(0) { - glGenTextures(1, &id); + if(m) + set_manager(m); + else if(ARB_direct_state_access) + glCreateTextures(target, 1, &id); + else + glGenTextures(1, &id); } Texture::~Texture() { - glDeleteTextures(1, &id); + 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) +{ + 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(current()==this) + 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&GENERATE_MIPMAP) + set_parameter_i(GL_GENERATE_MIPMAP, gen_mipmap); + 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(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_SGIS, 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); + 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 - dirty_params |= mask; + 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) @@ -101,6 +211,18 @@ void Texture::set_mag_filter(TextureFilter 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_mipmap_levels(unsigned l) +{ + mipmap_levels = l; + update_parameter(MIPMAP_LEVELS); +} + void Texture::set_max_anisotropy(float a) { if(a<1.0f) @@ -108,14 +230,16 @@ 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) { set_wrap_s(w); set_wrap_t(w); - set_wrap_r(w); + if(EXT_texture3D) + set_wrap_r(w); } void Texture::set_wrap_s(TextureWrap w) @@ -132,42 +256,97 @@ void Texture::set_wrap_t(TextureWrap w) 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 || 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; - update_parameter(GENERATE_MIPMAP); + if(!EXT_framebuffer_object) + update_parameter(GENERATE_MIPMAP); +} + +void Texture::auto_generate_mipmap() +{ + // glGenerateMipmap is defined here + if(EXT_framebuffer_object) + { + if(ARB_direct_state_access) + glGenerateTextureMipmap(id); + else + glGenerateMipmap(target); + } } 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::bind() const +void Texture::load_image(const string &fn, bool srgb) +{ + Graphics::Image img; + img.load_file(fn); + + image(img, srgb); +} + +void Texture::bind_to(unsigned i, bool legacy) const { - const Texture *cur = TexUnit::current().get_texture(); - if(cur!=this) + if(!id) { - if(cur && cur->target!=target) - glDisable(cur->target); - if(!cur || cur->target!=target) - glEnable(target); + if(manager) + manager->resource_used(*this); + if(!id) + { + unbind_from(i); + return; + } + } - glBindTexture(target, id); - TexUnit::current().set_texture(this); + legacy = (legacy && is_legacy_target(target)); + + TexUnit &unit = TexUnit::get_unit(i); + const Texture *old = unit.get_texture(); + bool old_legacy = unit.get_texture_legacy(); + if(unit.set_texture(this, legacy)) + { + if(manager) + manager->resource_used(*this); + + if(ARB_direct_state_access && !old_legacy && (!unit.supports_legacy() || !legacy)) + glBindTextureUnit(i, id); + else + { + 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); + } if(dirty_params) { @@ -177,53 +356,97 @@ void Texture::bind() const } } -void Texture::bind_to(unsigned i) const +const Texture *Texture::current(unsigned i) { - TexUnit::activate(i); - bind(); + return TexUnit::get_unit(i).get_texture(); } -const Texture *Texture::current() +void Texture::unbind_from(unsigned i) { - return TexUnit::current().get_texture(); + TexUnit &unit = TexUnit::get_unit(i); + const Texture *cur = unit.get_texture(); + bool legacy = unit.get_texture_legacy(); + if(unit.set_texture(0)) + { + if(ARB_direct_state_access && !legacy) + glBindTextureUnit(i, 0); + else + { + unit.bind(); + glBindTexture(cur->target, 0); + if(unit.supports_legacy() && legacy) + glDisable(cur->target); + } + } } -void Texture::unbind() +bool Texture::is_legacy_target(GLenum target) { - const Texture *cur = TexUnit::current().get_texture(); - if(!cur) - return; - - glBindTexture(cur->target, 0); - glDisable(cur->target); - TexUnit::current().set_texture(0); + return target(t, 0) { - TexUnit::activate(i); - unbind(); + init(); } +Texture::Loader::Loader(Texture &t, Collection &c): + DataFile::CollectionObjectLoader(t, &c) +{ + init(); +} -Texture::Loader::Loader(Texture &t): - DataFile::ObjectLoader(t) +void Texture::Loader::init() { - add("max_anisotropy", &Loader::max_anisotropy); + 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); } +void Texture::Loader::external_image(const string &fn) +{ + Graphics::Image img; + RefPtr io = get_collection().open_raw(fn); + img.load_io(*io); + + obj.image(img, srgb); +} + +void Texture::Loader::filter(TextureFilter f) +{ + obj.set_filter(f); +} + void Texture::Loader::generate_mipmap(bool gm) { obj.set_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, srgb); +} + void Texture::Loader::mag_filter(TextureFilter f) { obj.set_mag_filter(f); @@ -239,6 +462,11 @@ 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); @@ -259,5 +487,12 @@ 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