Move all OpenGL-specific code to a separate directory

[libs/gl.git] / source / core / sampler.cpp

diff --git a/source/core/sampler.cpp b/source/core/sampler.cpp
index 5ea10c43f6657c13eb3d0fe88824602d09420988..6f4770acb4e40a73ea6270bfeabcbeeec273fcc8 100644 (file)
--- a/source/core/sampler.cpp
+++ b/source/core/sampler.cpp
@@ -1,9 +1,3 @@
-#include <msp/gl/extensions/arb_direct_state_access.h>
-#include <msp/gl/extensions/arb_sampler_objects.h>
-#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"
@@ -24,39 +18,11 @@ Sampler::Sampler():
        compare(false),
        cmp_func(LEQUAL),
        dirty_params(0)
-{
-       Require _req(ARB_sampler_objects);
-       Require _req2(EXT_texture3D);
-       Require _req3(ARB_shadow);
-       if(ARB_direct_state_access)
-               glCreateSamplers(1, &id);
-       else
-               glGenSamplers(1, &id);
-}
+{ }
 
 void Sampler::update() const
 {
-       if(dirty_params&MIN_FILTER)
-               glSamplerParameteri(id, GL_TEXTURE_MIN_FILTER, get_gl_filter(min_filter));
-       if(dirty_params&MAG_FILTER)
-               glSamplerParameteri(id, GL_TEXTURE_MAG_FILTER, get_gl_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, get_gl_wrap(wrap_s));
-       if(dirty_params&WRAP_T)
-               glSamplerParameteri(id, GL_TEXTURE_WRAP_T, get_gl_wrap(wrap_t));
-       if(dirty_params&WRAP_R)
-               glSamplerParameteri(id, GL_TEXTURE_WRAP_R, get_gl_wrap(wrap_r));
-       if(dirty_params&BORDER_COLOR)
-               glSamplerParameterfv(id, GL_TEXTURE_BORDER_COLOR, &border_color.r);
-       if(dirty_params&COMPARE)
-       {
-               glSamplerParameteri(id, GL_TEXTURE_COMPARE_MODE, (compare ? GL_COMPARE_R_TO_TEXTURE : GL_NONE));
-               if(compare)
-                       glSamplerParameteri(id, GL_TEXTURE_COMPARE_FUNC, get_gl_predicate(cmp_func));
-       }
-
+       SamplerBackend::update(dirty_params);
        dirty_params = 0;
 }
 
@@ -82,10 +48,9 @@ void Sampler::set_max_anisotropy(float a)
 {
        if(a<1.0f)
                throw invalid_argument("Sampler::set_max_anisotropy");
-       else if(a>1.0f)
-               static Require _req(EXT_texture_filter_anisotropic);
+       bool supported = check_anisotropic(a>1.0f);
        max_anisotropy = a;
-       if(EXT_texture_filter_anisotropic)
+       if(supported)
                dirty_params |= MAX_ANISOTROPY;
 }
 
@@ -133,16 +98,6 @@ void Sampler::set_compare(Predicate f)
        dirty_params |= COMPARE;
 }
 
-void Sampler::set_debug_name(const string &name)
-{
-#ifdef DEBUG
-       if(id && KHR_debug)
-               glObjectLabel(GL_SAMPLER, id, name.size(), name.c_str());
-#else
-       (void)name;
-#endif
-}
-
 
 Sampler::Loader::Loader(Sampler &s):
        DataFile::ObjectLoader<Sampler>(s)
@@ -216,32 +171,6 @@ bool is_mipmapped(TextureFilter filter)
                filter==LINEAR_MIPMAP_NEAREST || filter==LINEAR_MIPMAP_LINEAR);
 }
 
-unsigned get_gl_filter(TextureFilter filter)
-{
-       switch(filter)
-       {
-       case NEAREST: return GL_NEAREST;
-       case LINEAR: return GL_LINEAR;
-       case NEAREST_MIPMAP_NEAREST: return GL_NEAREST_MIPMAP_NEAREST;
-       case NEAREST_MIPMAP_LINEAR: return GL_NEAREST_MIPMAP_LINEAR;
-       case LINEAR_MIPMAP_NEAREST: return GL_LINEAR_MIPMAP_NEAREST;
-       case LINEAR_MIPMAP_LINEAR: return GL_LINEAR_MIPMAP_LINEAR;
-       default: throw invalid_argument("get_gl_filter");
-       }
-}
-
-unsigned get_gl_wrap(TextureWrap wrap)
-{
-       switch(wrap)
-       {
-       case REPEAT: return GL_REPEAT;
-       case CLAMP_TO_EDGE: return GL_CLAMP_TO_EDGE;
-       case CLAMP_TO_BORDER: return GL_CLAMP_TO_BORDER;
-       case MIRRORED_REPEAT: return GL_MIRRORED_REPEAT;
-       default: throw invalid_argument("get_gl_wrap");
-       }
-}
-
 void operator>>(const LexicalConverter &c, TextureFilter &tf)
 {
        if(c.get()=="NEAREST")