X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fcore%2Fsampler.cpp;h=4da13833330dac12eace04b145f9ffacd4a0510b;hp=c36e9852c264418a50ac618a4c84cb4fd184043a;hb=HEAD;hpb=24b24e2203c776aacd9744bb947f5cf47b03d328

diff --git a/source/core/sampler.cpp b/source/core/sampler.cpp
index c36e9852..4da13833 100644
--- a/source/core/sampler.cpp
+++ b/source/core/sampler.cpp
@@ -1,61 +1,16 @@
-#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 "device.h"
 #include "error.h"
 #include "sampler.h"
-#include "texture.h"
 
 using namespace std;
 
 namespace Msp {
 namespace GL {
 
-Sampler::Sampler():
-	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)
-{
-	Require _req(ARB_sampler_objects);
-	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;
 }
 
@@ -67,6 +22,8 @@ void Sampler::set_min_filter(TextureFilter f)
 
 void Sampler::set_mag_filter(TextureFilter f)
 {
+	if(is_mipmapped(f))
+		throw invalid_argument("Sampler::set_mag_filter");
 	mag_filter = f;
 	dirty_params |= MAG_FILTER;
 }
@@ -81,21 +38,14 @@ 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);
+	if(a>Device::get_current().get_info().limits.max_anisotropy)
+		throw out_of_range("Sampler::set_max_anisotropy");
+	bool supported = check_anisotropic(a>1.0f);
 	max_anisotropy = a;
-	if(EXT_texture_filter_anisotropic)
+	if(supported)
 		dirty_params |= MAX_ANISOTROPY;
 }
 
-void Sampler::set_wrap(TextureWrap w)
-{
-	set_wrap_s(w);
-	set_wrap_t(w);
-	if(EXT_texture3D)
-		set_wrap_r(w);
-}
-
 void Sampler::set_wrap_s(TextureWrap w)
 {
 	wrap_s = w;
@@ -110,11 +60,17 @@ void Sampler::set_wrap_t(TextureWrap w)
 
 void Sampler::set_wrap_r(TextureWrap w)
 {
-	static Require _req(EXT_texture3D);
 	wrap_r = w;
 	dirty_params |= WRAP_R;
 }
 
+void Sampler::set_wrap(TextureWrap w)
+{
+	set_wrap_s(w);
+	set_wrap_t(w);
+	set_wrap_r(w);
+}
+
 void Sampler::set_border_color(const Color &c)
 {
 	border_color = c;
@@ -129,22 +85,11 @@ void Sampler::disable_compare()
 
 void Sampler::set_compare(Predicate f)
 {
-	static Require _req(ARB_shadow);
 	compare = true;
 	cmp_func = 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)
@@ -218,32 +163,6 @@ 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")