#include <msp/gl/extensions/arb_shadow.h>
#include <msp/gl/extensions/ext_texture_filter_anisotropic.h>
#include <msp/gl/extensions/ext_texture3d.h>
+#include <msp/gl/extensions/khr_debug.h>
#include <msp/strings/format.h>
#include "error.h"
#include "sampler.h"
#include "texture.h"
-#include "texunit.h"
using namespace std;
namespace GL {
Sampler::Sampler():
- owner(0)
+ min_filter(NEAREST_MIPMAP_LINEAR),
+ mag_filter(LINEAR),
+ max_anisotropy(1.0f),
+ wrap_s(REPEAT),
+ wrap_t(REPEAT),
+ wrap_r(REPEAT),
+ border_color(Color(0.0f, 0.0f, 0.0f, 0.0f)),
+ compare(false),
+ cmp_func(LEQUAL),
+ dirty_params(0)
{
- init();
-
Require _req(ARB_sampler_objects);
if(ARB_direct_state_access)
glCreateSamplers(1, &id);
glGenSamplers(1, &id);
}
-Sampler::Sampler(const Texture &tex):
- id(0),
- owner(&tex)
-{
- if(this!=&tex.get_default_sampler())
- throw invalid_argument("Sampler::Sampler");
-
- init();
-}
-
-void Sampler::init()
-{
- min_filter = NEAREST_MIPMAP_LINEAR;
- mag_filter = LINEAR;
- max_anisotropy = 1.0f;
- wrap_s = REPEAT;
- wrap_t = REPEAT;
- wrap_r = REPEAT;
- border_color = Color(0.0f, 0.0f, 0.0f, 0.0f);
- compare = false;
- cmp_func = LEQUAL;
- dirty_params = 0;
-}
-
-void Sampler::update_parameter(int mask) const
-{
- if(owner)
+void Sampler::update() const
+{
+ if(dirty_params&MIN_FILTER)
+ glSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, min_filter);
+ if(dirty_params&MAG_FILTER)
+ glSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, mag_filter);
+ if(dirty_params&MAX_ANISOTROPY)
+ glSamplerParameterf(id, GL_TEXTURE_MAX_ANISOTROPY_EXT, max_anisotropy);
+ if(dirty_params&WRAP_S)
+ glSamplerParameteri(id, GL_TEXTURE_WRAP_S, wrap_s);
+ if(dirty_params&WRAP_T)
+ glSamplerParameteri(id, GL_TEXTURE_WRAP_T, wrap_t);
+ if(dirty_params&WRAP_R)
+ glSamplerParameteri(id, GL_TEXTURE_WRAP_R, wrap_r);
+ if(dirty_params&BORDER_COLOR)
+ glSamplerParameterfv(id, GL_TEXTURE_BORDER_COLOR, &border_color.r);
+ if(dirty_params&COMPARE)
{
- if(!owner->get_id())
- {
- dirty_params |= mask;
- return;
- }
-
- if(!ARB_direct_state_access && TexUnit::current().get_texture()!=owner)
- {
- TexUnit *unit = TexUnit::find_unit(owner);
- 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&BORDER_COLOR)
- set_parameter_fv(GL_TEXTURE_BORDER_COLOR, &border_color.r);
- if(mask&COMPARE)
- {
- set_parameter_i(GL_TEXTURE_COMPARE_MODE, (compare ? GL_COMPARE_R_TO_TEXTURE : GL_NONE));
+ glSamplerParameteri(id, GL_TEXTURE_COMPARE_MODE, (compare ? GL_COMPARE_R_TO_TEXTURE : GL_NONE));
if(compare)
- set_parameter_i(GL_TEXTURE_COMPARE_FUNC, cmp_func);
+ glSamplerParameteri(id, GL_TEXTURE_COMPARE_FUNC, get_gl_predicate(cmp_func));
}
-}
-
-void Sampler::set_parameter_i(unsigned param, int value) const
-{
- if(id)
- glSamplerParameteri(id, param, value);
- else if(ARB_direct_state_access)
- glTextureParameteri(owner->get_id(), param, value);
- else
- glTexParameteri(owner->get_target(), param, value);
-}
-
-void Sampler::set_parameter_f(unsigned param, float value) const
-{
- if(id)
- glSamplerParameterf(id, param, value);
- else if(ARB_direct_state_access)
- glTextureParameterf(owner->get_id(), param, value);
- else
- glTexParameterf(owner->get_target(), param, value);
-}
-void Sampler::set_parameter_fv(unsigned param, const float *value) const
-{
- if(id)
- glSamplerParameterfv(id, param, value);
- else if(ARB_direct_state_access)
- glTextureParameterfv(owner->get_id(), param, value);
- else
- glTexParameterfv(owner->get_target(), param, value);
+ dirty_params = 0;
}
void Sampler::set_min_filter(TextureFilter f)
{
min_filter = f;
- update_parameter(MIN_FILTER);
+ dirty_params |= MIN_FILTER;
}
void Sampler::set_mag_filter(TextureFilter f)
{
mag_filter = f;
- update_parameter(MAG_FILTER);
+ dirty_params |= MAG_FILTER;
}
void Sampler::set_filter(TextureFilter f)
static Require _req(EXT_texture_filter_anisotropic);
max_anisotropy = a;
if(EXT_texture_filter_anisotropic)
- update_parameter(MAX_ANISOTROPY);
+ dirty_params |= MAX_ANISOTROPY;
}
void Sampler::set_wrap(TextureWrap w)
void Sampler::set_wrap_s(TextureWrap w)
{
wrap_s = w;
- update_parameter(WRAP_S);
+ dirty_params |= WRAP_S;
}
void Sampler::set_wrap_t(TextureWrap w)
{
wrap_t = w;
- update_parameter(WRAP_T);
+ dirty_params |= WRAP_T;
}
void Sampler::set_wrap_r(TextureWrap w)
{
static Require _req(EXT_texture3D);
wrap_r = w;
- update_parameter(WRAP_R);
+ dirty_params |= WRAP_R;
}
void Sampler::set_border_color(const Color &c)
{
border_color = c;
- update_parameter(BORDER_COLOR);
+ dirty_params |= BORDER_COLOR;
}
void Sampler::disable_compare()
{
compare = false;
- update_parameter(COMPARE);
+ dirty_params |= COMPARE;
}
void Sampler::set_compare(Predicate f)
static Require _req(ARB_shadow);
compare = true;
cmp_func = f;
- update_parameter(COMPARE);
-}
-
-void Sampler::bind_to(unsigned i) const
-{
- TexUnit &unit = TexUnit::get_unit(i);
- if(owner && owner!=unit.get_texture())
- throw invalid_operation("Sampler::bind_to");
-
- const Sampler *cur = unit.get_sampler();
- if(unit.set_sampler(this))
- {
- if(!owner || (cur && cur->id))
- glBindSampler(i, id);
-
- if(dirty_params)
- {
- update_parameter(dirty_params);
- dirty_params = 0;
- }
- }
-}
-
-const Sampler *Sampler::current(unsigned i)
-{
- return TexUnit::get_unit(i).get_sampler();
+ dirty_params |= COMPARE;
}
-void Sampler::unbind_from(unsigned i)
+void Sampler::set_debug_name(const string &name)
{
- TexUnit &unit = TexUnit::get_unit(i);
- const Sampler *cur = unit.get_sampler();
- if(unit.set_sampler(0) && cur->id)
- glBindSampler(i, 0);
-}
-
-void Sampler::unload()
-{
- if(owner && !owner->get_id())
- {
- if(min_filter!=NEAREST_MIPMAP_LINEAR)
- dirty_params |= MIN_FILTER;
- if(mag_filter!=LINEAR)
- dirty_params |= MAG_FILTER;
- if(max_anisotropy!=1.0f)
- dirty_params |= MAX_ANISOTROPY;
- if(wrap_s!=REPEAT)
- dirty_params |= WRAP_S;
- if(wrap_t!=REPEAT)
- dirty_params |= WRAP_T;
- if(wrap_r!=REPEAT)
- dirty_params |= WRAP_R;
- if(compare || cmp_func!=LEQUAL)
- dirty_params |= COMPARE;
- }
+#ifdef DEBUG
+ if(id && KHR_debug)
+ glObjectLabel(GL_SAMPLER, id, name.size(), name.c_str());
+#else
+ (void)name;
+#endif
}
projects / libs / gl.git / blobdiff