Some more progress in the imperative API.

src/nvtt/Texture.cpp

@@ -26,23 +26,24 @@
 using namespace nvtt;
 
 
-Texture::Texture() : m(*new Texture::Private())
+Texture::Texture() : m(NULL)
+{
+}
+
+Texture::Texture(const Texture & tex) : m(tex.m)
 {
 }
 
 Texture::~Texture()
 {
-	delete &m;
-}
-
-Texture::Texture(const Texture & tex) : m(*new Texture::Private())
-{
-	// @@ Not implemented.
+	delete m;
 }
 
 void Texture::operator=(const Texture & tex)
 {
-	// @@ Not implemented.
+	tex.m->addRef();
+	m = tex.m;
+	m->release();
 }
 
 bool Texture::load(const char * fileName)
@@ -53,7 +54,7 @@ bool Texture::load(const char * fileName)
 
 void Texture::setType(TextureType type)
 {
-	m.type = type;
+	m->type = type;
 }
 
 void Texture::setTexture2D(InputFormat format, int w, int h, int idx, void * data)
@@ -67,7 +68,7 @@ void Texture::resize(int w, int h, ResizeFilter filter)
 	// @@ Not implemented.
 }
 
-bool Texture::buildMipmap(MipmapFilter filter)
+bool Texture::buildNextMipmap(MipmapFilter filter)
 {
 	// @@ Not implemented.
 }
@@ -75,17 +76,17 @@ bool Texture::buildMipmap(MipmapFilter filter)
 // Color transforms.
 void Texture::toLinear(float gamma)
 {
-	foreach(i, m.imageArray)
+	foreach(i, m->imageArray)
 	{
-		m.imageArray[i].toLinear(0, 3, gamma);
+		m->imageArray[i].toLinear(0, 3, gamma);
 	}
 }
 
 void Texture::toGamma(float gamma)
 {
-	foreach(i, m.imageArray)
+	foreach(i, m->imageArray)
 	{
-		m.imageArray[i].toGamma(0, 3, gamma);
+		m->imageArray[i].toGamma(0, 3, gamma);
 	}
 }
 
@@ -96,25 +97,25 @@ void Texture::transform(const float w0[4], const float w1[4], const float w2[4],
 
 void Texture::swizzle(int r, int g, int b, int a)
 {
-	foreach(i, m.imageArray)
+	foreach(i, m->imageArray)
 	{
-		m.imageArray[i].swizzle(0, r, g, b, a);
+		m->imageArray[i].swizzle(0, r, g, b, a);
 	}
 }
 
 void Texture::scaleBias(int channel, float scale, float bias)
 {
-	foreach(i, m.imageArray)
+	foreach(i, m->imageArray)
 	{
-		m.imageArray[i].scaleBias(channel, 1, scale, bias);
+		m->imageArray[i].scaleBias(channel, 1, scale, bias);
 	}
 }
 
 void Texture::normalize()
 {
-	foreach(i, m.imageArray)
+	foreach(i, m->imageArray)
 	{
-		m.imageArray[i].normalize(0);
+		m->imageArray[i].normalize(0);
 	}
 }
 

src/nvtt/Texture.h

@@ -27,6 +27,7 @@
 #include "nvtt.h"
 
 #include <nvcore/Containers.h>
+#include <nvcore/RefCounted.h>
 
 #include <nvimage/Image.h>
 #include <nvimage/FloatImage.h>
@@ -34,7 +35,7 @@
 namespace nvtt
 {
 
-	struct Texture::Private
+	struct Texture::Private : public nv::RefCounted
 	{
 		TextureType type;
 		nv::Array<nv::FloatImage> imageArray;

src/nvtt/nvtt.h

@@ -53,7 +53,7 @@
 	private: \
 		Class(const Class &); \
 		void operator=(const Class &); \
-	public: \
+	public:
 
 #define NVTT_DECLARE_PIMPL(Class) \
 	public: \
@@ -358,6 +358,8 @@ namespace nvtt
 		NVTT_API int estimateSize(const InputOptions & inputOptions, const CompressionOptions & compressionOptions) const;
 
 		NVTT_API void outputCompressed(const Texture & tex, const OutputOptions & outputOptions);
+
+		NVTT_API Texture createTexture();
 	};
 
 	// "Compressor" is deprecated. This should have been called "Context"
@@ -367,13 +369,11 @@ namespace nvtt
 	/// Texture data.
 	struct Texture
 	{
-		NVTT_DECLARE_PIMPL(Texture);
-
 		NVTT_API Texture();
+		NVTT_API Texture(const Texture & tex);
 		NVTT_API ~Texture();
 
-		Texture(const Texture & tex);
-		void operator=(const Texture & tex);
+		NVTT_API void operator=(const Texture & tex);
 
 		NVTT_API bool load(const char * fileName); // @@ Input callbacks?
 
@@ -382,7 +382,7 @@ namespace nvtt
 
 		// Resizing
 		NVTT_API void resize(int w, int h, ResizeFilter filter);
-		NVTT_API bool buildMipmap(MipmapFilter filter);
+		NVTT_API bool buildNextMipmap(MipmapFilter filter);
 
 		// Color transforms.
 		NVTT_API void toLinear(float gamma);
@@ -393,6 +393,10 @@ namespace nvtt
 		NVTT_API void normalize();
 		NVTT_API void blend(float r, float g, float b, float a);
 		NVTT_API void premultiplyAlpha();
+
+	private:
+		struct Private;
+		Private * m;
 	};
 
 

src/nvtt/tests/imperativeapi.cpp

@@ -25,10 +25,27 @@
 
 #include <stdlib.h>
 
-//using namespace nv;
 
 int main(int argc, char *argv[])
 {
+	nvtt::CompressionOptions compressionOptions;
+	nvtt::OutputOptions outputOptions;
+
+	nvtt::Context context;
+	nvtt::Texture texture = context.createTexture();
+
+	texture.load("kodim01.png");
+
+	float gamma = 2.2;
+	texture.toLinear(gamma);
+
+	while (texture.buildNextMipmap(nvtt::MipmapFilter_Box))
+	{
+		nvtt::Texture tmp = texture;
+		tmp.toGamma(gamma);
+		//tmp.compress(compressionOptions, outputOptions);
+	}
+
 	return EXIT_SUCCESS;
 }