-/* $Id$
-
-This file is part of libmspgl
-Copyright © 2007 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
-#include "except.h"
+#include <msp/gl/extensions/arb_direct_state_access.h>
+#include <msp/gl/extensions/arb_shadow.h>
+#include <msp/gl/extensions/arb_texture_swizzle.h>
+#include <msp/gl/extensions/ext_framebuffer_object.h>
+#include <msp/gl/extensions/ext_texture3d.h>
+#include <msp/gl/extensions/ext_texture_filter_anisotropic.h>
+#include <msp/gl/extensions/sgis_generate_mipmap.h>
+#include <msp/io/memory.h>
+#include <msp/strings/format.h>
+#include "error.h"
+#include "resourcemanager.h"
+#include "resources.h"
#include "texture.h"
#include "texunit.h"
namespace Msp {
namespace GL {
-istream &operator>>(istream &in, TextureFilter &tf)
-{
- string str;
- in>>str;
-
- if(str=="NEAREST")
- tf=NEAREST;
- else if(str=="LINEAR")
- tf=LINEAR;
- else if(str=="NEAREST_MIPMAP_NEAREST")
- tf=NEAREST_MIPMAP_NEAREST;
- else if(str=="NEAREST_MIPMAP_LINEAR")
- tf=NEAREST_MIPMAP_LINEAR;
- else if(str=="LINEAR_MIPMAP_NEAREST")
- tf=LINEAR_MIPMAP_NEAREST;
- else if(str=="LINEAR_MIPMAP_LINEAR")
- tf=LINEAR_MIPMAP_LINEAR;
+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
- in.setstate(ios_base::failbit);
+ throw lexical_error(format("conversion of '%s' to TextureFilter", c.get()));
+}
+
- return in;
+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()));
}
-void Texture::bind() const
+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),
+ 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()
{
- if(!target)
- throw InvalidState("Attempt to bind a texture without target");
+ while(TexUnit *unit = TexUnit::find_unit(this))
+ unbind_from(unit->get_index());
- const Texture *cur=TexUnit::current().get_texture();
- if(cur!=this)
+ 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(cur && cur->target!=target)
- glDisable(cur->target);
- if(!cur || cur->target!=target)
- glEnable(target);
- glBindTexture(target, id);
- TexUnit::current().set_texture(this);
+ 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);
}
-void Texture::bind_to(unsigned i) const
+PixelFormat Texture::get_upload_format(PixelFormat fmt) const
{
- TexUnit::activate(i);
- bind();
+ if(fmt==LUMINANCE || fmt==LUMINANCE_ALPHA)
+ return get_base_pixelformat(ifmt);
+ else
+ return fmt;
}
-void Texture::parameter(GLenum param, int value)
+void Texture::update_parameter(int mask) const
{
- maybe_bind();
+ if(!ARB_direct_state_access && TexUnit::current().get_texture()!=this)
+ {
+ TexUnit *unit = TexUnit::find_unit(this);
+ if(!unit)
+ {
+ dirty_params |= mask;
+ return;
+ }
+
+ unit->bind();
+ }
- glTexParameteri(target, param, value);
+ 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(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::parameter(GLenum param, float value)
+void Texture::set_parameter_i(GLenum param, int value) const
{
- maybe_bind();
+ if(ARB_direct_state_access)
+ glTextureParameteri(id, param, value);
+ else
+ glTexParameteri(target, param, value);
+}
- glTexParameterf(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);
}
-Texture::~Texture()
+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_mipmap_levels(unsigned l)
+{
+ mipmap_levels = l;
+ update_parameter(MIPMAP_LEVELS);
+}
+
+void Texture::set_max_anisotropy(float a)
{
- glDeleteTextures(1, &id);
+ 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::unbind()
+void Texture::set_wrap(TextureWrap w)
{
- const Texture *cur=TexUnit::current().get_texture();
- if(!cur)
- return;
+ set_wrap_s(w);
+ set_wrap_t(w);
+ if(EXT_texture3D)
+ set_wrap_r(w);
+}
- glBindTexture(cur->target, 0);
- glDisable(cur->target);
- TexUnit::current().set_texture(0);
+void Texture::set_wrap_s(TextureWrap w)
+{
+ wrap_s = w;
+ update_parameter(WRAP_S);
}
-Texture::Texture():
- target(0)
+void Texture::set_wrap_t(TextureWrap w)
{
- glGenTextures(1, &id);
+ wrap_t = w;
+ update_parameter(WRAP_T);
}
-void Texture::maybe_bind() const
+void Texture::set_wrap_r(TextureWrap w)
{
- if(TexUnit::current().get_texture()!=this)
- bind();
+ 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 && !EXT_framebuffer_object)
+ static Require _req(SGIS_generate_mipmap);
+ gen_mipmap = gm;
+ 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::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
+{
+ if(!id)
+ {
+ if(manager)
+ manager->resource_used(*this);
+ if(!id)
+ {
+ unbind_from(i);
+ return;
+ }
+ }
+
+ 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)
+ {
+ 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();
+ 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);
+ }
+ }
+}
+
+bool Texture::is_legacy_target(GLenum target)
+{
+ return target<GL_TEXTURE_1D_ARRAY;
}
Texture::Loader::Loader(Texture &t):
- tex(t)
+ DataFile::CollectionObjectLoader<Texture>(t, 0)
{
- add("min_filter", &Loader::min_filter);
- add("mag_filter", &Loader::mag_filter);
+ init();
+}
+
+Texture::Loader::Loader(Texture &t, Collection &c):
+ DataFile::CollectionObjectLoader<Texture>(t, &c)
+{
+ init();
+}
+
+void Texture::Loader::init()
+{
+ if(Resources *res = dynamic_cast<Resources *>(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::min_filter(TextureFilter f)
+void Texture::Loader::external_image(const string &fn)
{
- tex.set_min_filter(f);
+ Graphics::Image img;
+ RefPtr<IO::Seekable> io = get_collection().open_raw(fn);
+ img.load_io(*io);
+
+ obj.image(img, srgb);
}
-void Texture::Loader::mag_filter(TextureFilter f)
+void Texture::Loader::filter(TextureFilter f)
{
- tex.set_mag_filter(f);
+ obj.set_filter(f);
}
void Texture::Loader::generate_mipmap(bool gm)
{
- tex.parameter(GL_GENERATE_MIPMAP_SGIS, 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);
+}
+
+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)
+{
+ obj.set_mipmap_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
projects / libs / gl.git / blobdiff