#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 "bindable.h"
#include "error.h"
#include "resourcemanager.h"
#include "resources.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),
- gen_mipmap(false),
+ auto_gen_mipmap(false),
compare(false),
cmp_func(LEQUAL),
dirty_params(0)
void Texture::set_internal_format(PixelFormat fmt)
{
- if(!get_component_size(fmt) && MSP_sized_internal_formats)
+ FormatSwizzle swiz = NO_SWIZZLE;
+ if(ARB_texture_rg && ARB_texture_swizzle)
{
- unsigned size = (fmt==DEPTH_COMPONENT ? get_gl_api()==OPENGL_ES2 ? 2 : 4 : 1);
- fmt = get_sized_pixelformat(fmt, size);
+ 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
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::set_parameter_i(GLenum param, int value) const
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);
}
-void Texture::set_generate_mipmap(bool gm)
+bool Texture::can_generate_mipmap()
{
- if(gm && !EXT_framebuffer_object)
- static Require _req(SGIS_generate_mipmap);
- gen_mipmap = gm;
- if(!EXT_framebuffer_object)
- update_parameter(GENERATE_MIPMAP);
+ return EXT_framebuffer_object;
}
-void Texture::auto_generate_mipmap()
+void Texture::generate_mipmap()
{
// glGenerateMipmap is defined here
- if(EXT_framebuffer_object)
+ static Require _req(EXT_framebuffer_object);
+
+ if(ARB_direct_state_access)
+ glGenerateTextureMipmap(id);
+ else
{
- if(ARB_direct_state_access)
- glGenerateTextureMipmap(id);
- else
- glGenerateMipmap(target);
+ 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)
}
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(ARB_direct_state_access)
+ glBindTextureUnit(i, id);
+ else
{
- if(old && old->target!=target)
- glDisable(old->target);
- if(!old || old->target!=target)
- glEnable(target);
+ unit.bind();
+ glBindTexture(target, id);
}
- glBindTexture(target, id);
if(dirty_params)
{
const Texture *cur = unit.get_texture();
if(unit.set_texture(0))
{
- unit.bind();
- glBindTexture(cur->target, 0);
- if(unit.supports_legacy())
- glDisable(cur->target);
+ if(ARB_direct_state_access)
+ glBindTextureUnit(i, 0);
+ else
+ {
+ unit.bind();
+ glBindTexture(cur->target, 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);
{
Graphics::Image img;
RefPtr<IO::Seekable> io = get_collection().open_raw(fn);
+ if(!io)
+ throw IO::file_not_found(fn);
img.load_io(*io);
obj.image(img, srgb);
void Texture::Loader::generate_mipmap(bool gm)
{
- obj.set_generate_mipmap(gm);
+ obj.set_auto_generate_mipmap(gm);
}
void Texture::Loader::image_data(const string &data)
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);