#ifndef MSP_GL_TEXTURE_H_
#define MSP_GL_TEXTURE_H_
+#include <msp/core/attributes.h>
#include <msp/datafile/objectloader.h>
+#include <msp/graphics/image.h>
+#include "datatype.h"
#include "gl.h"
+#include "pixelformat.h"
#include "predicate.h"
+#include "resource.h"
namespace Msp {
namespace GL {
-class Resources;
-
enum TextureFilter
{
/// No filtering
If texture coordinates fall outside of the principal range of the texture,
wrapping is applied. The default for all directions is REPEAT.
*/
-class Texture
+class Texture: public Resource
{
protected:
class Loader: public DataFile::CollectionObjectLoader<Texture>
private:
void init();
+ void external_image(const std::string &);
void filter(TextureFilter);
void generate_mipmap(bool);
+ void image_data(const std::string &);
void mag_filter(TextureFilter);
void max_anisotropy(float);
void min_filter(TextureFilter);
+ void mipmap_levels(unsigned);
void wrap(TextureWrap);
void wrap_r(TextureWrap);
void wrap_s(TextureWrap);
WRAP_S = 4,
WRAP_T = 8,
WRAP_R = 16,
- GENERATE_MIPMAP = 32,
COMPARE = 64,
COMPARE_FUNC = 128,
- MAX_ANISOTROPY = 256
+ MAX_ANISOTROPY = 256,
+ FORMAT_SWIZZLE = 512,
+ MIPMAP_LEVELS = 1024
+ };
+
+ enum FormatSwizzle
+ {
+ NO_SWIZZLE,
+ R_TO_LUMINANCE,
+ RG_TO_LUMINANCE_ALPHA
};
unsigned id;
GLenum target;
+ PixelFormat ifmt;
+ FormatSwizzle swizzle;
TextureFilter min_filter;
TextureFilter mag_filter;
+ unsigned mipmap_levels;
float max_anisotropy;
TextureWrap wrap_s;
TextureWrap wrap_t;
TextureWrap wrap_r;
- bool gen_mipmap;
+ bool auto_gen_mipmap;
bool compare;
Predicate cmp_func;
mutable int dirty_params;
- Texture(GLenum);
+ static int swizzle_orders[];
+
+ Texture(GLenum, ResourceManager * = 0);
Texture(const Texture &);
Texture &operator=(const Texture &);
public:
~Texture();
protected:
+ static DataType get_alloc_type(PixelFormat);
+ void set_internal_format(PixelFormat);
+ PixelFormat get_upload_format(PixelFormat) const;
+
void update_parameter(int) const;
+ void set_parameter_i(GLenum, int) const;
+ void set_parameter_f(GLenum, float) const;
public:
void set_min_filter(TextureFilter);
void set_mag_filter(TextureFilter);
is not applicable to magnification, LINEAR is used instead. */
void set_filter(TextureFilter);
+ void set_mipmap_levels(unsigned);
+
void set_max_anisotropy(float);
/** Sets the wrapping mode for all coordinates. */
void set_wrap_t(TextureWrap);
void set_wrap_r(TextureWrap);
+ static bool can_generate_mipmap();
+
+ void generate_mipmap();
+
/** Sets automatic mipmap generation. If enabled, mipmaps are generated
when a texture image is uploaded. */
- void set_generate_mipmap(bool);
+ void set_auto_generate_mipmap(bool);
+
+ /// Deprecated. Use set_auto_generate_mipmap instead.
+ DEPRECATED void set_generate_mipmap(bool g) { set_auto_generate_mipmap(g); }
/** Sets depth texture comparison. Has no effect on other formats. When
comparison is enabled, the third component of the texture coordinate is
/** Sets the function to use for depth comparison. */
void set_compare_func(Predicate);
+ /// Loads a Graphics::Image from a file and uploads it to the texture.
+ virtual void load_image(const std::string &, bool srgb = false);
+
+ /** Uploads an image to the texture. If storage has not been defined, it
+ will be set to match the image. Otherwise the image must be compatible
+ with the defined storage. Semantics depend on the type of texture.
+
+ If srgb is true and storage is determined by this call, then an sRGB pixel
+ format will be used. */
+ virtual void image(const Graphics::Image &, bool srgb = false) = 0;
+
GLenum get_target() const { return target; }
unsigned get_id() const { return id; }
static const Texture *current(unsigned = 0);
static void unbind() { unbind_from(0); }
static void unbind_from(unsigned);
+
+ virtual UInt64 get_data_size() const { return 0; }
};
+
+bool is_mipmapped(TextureFilter);
+
} // namespace GL
} // namespace Msp