+#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>
}
+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),
{
if(m)
set_manager(m);
+ else if(ARB_direct_state_access)
+ glCreateTextures(target, 1, &id);
else
glGenTextures(1, &id);
}
DataType Texture::get_alloc_type(PixelFormat fmt)
{
- return (fmt==DEPTH_COMPONENT ? UNSIGNED_SHORT : UNSIGNED_BYTE);
+ 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)
}
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, gen_mipmap);
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)
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)
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)
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;
- if(get_gl_api()!=OPENGL_ES2)
+ if(!EXT_framebuffer_object)
update_parameter(GENERATE_MIPMAP);
}
void Texture::auto_generate_mipmap()
{
- if(get_gl_api()==OPENGL_ES2)
+ // glGenerateMipmap is defined here
+ if(EXT_framebuffer_object)
{
- // glGenerateMipmap is defined here
- static Require _req(EXT_framebuffer_object);
- glGenerateMipmap(target);
+ if(ARB_direct_state_access)
+ glGenerateTextureMipmap(id);
+ else
+ glGenerateMipmap(target);
}
}
image(img, srgb);
}
-void Texture::bind_to(unsigned i) const
+void Texture::bind_to(unsigned i, bool legacy) const
{
if(!id)
{
}
}
+ 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)
{
{
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<GL_TEXTURE_1D_ARRAY;
+}
+
Texture::Loader::Loader(Texture &t):
DataFile::CollectionObjectLoader<Texture>(t, 0)
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);
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);
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
projects / libs / gl.git / blobdiff