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https://github.com/MaSzyna-EU07/maszyna.git
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milek7/sim branch opengl 3.3 renderer import
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30
Texture.h
30
Texture.h
@@ -12,8 +12,8 @@ http://mozilla.org/MPL/2.0/.
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#include <istream>
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#include <ddraw.h>
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#include <string>
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#include "GL/glew.h"
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#include "ResourceManager.h"
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#include "gl/ubo.h"
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struct opengl_texture {
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static DDSURFACEDESC2 deserialize_ddsd(std::istream&);
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@@ -27,12 +27,20 @@ struct opengl_texture {
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void
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load();
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bool
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bind();
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bind( size_t unit );
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static void
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unbind( size_t unit );
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bool
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create();
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// releases resources allocated on the opengl end, storing local copy if requested
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void
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release();
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void
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alloc_rendertarget( GLint format, GLint components, int width, int height, int samples = 1, GLint wrap = GL_CLAMP_TO_BORDER );
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void
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set_components_hint( GLint hint );
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static void
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reset_unit_cache();
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inline
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int
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width() const {
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@@ -49,6 +57,10 @@ struct opengl_texture {
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std::string name; // name of the texture source file
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std::string type; // type of the texture source file
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std::size_t size{ 0 }; // size of the texture data, in kb
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GLint components_hint = 0; // components that material wants
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GLenum target = GL_TEXTURE_2D;
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static std::array<GLuint, gl::MAX_TEXTURES + 2> units;
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private:
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// methods
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@@ -63,6 +75,8 @@ private:
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void flip_vertical();
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// members
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bool is_rendertarget = false; // is used as postfx rendertarget, without loaded data
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int samples = 1;
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std::vector<char> data; // texture data (stored GL-style, bottom-left origin)
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resource_state data_state{ resource_state::none }; // current state of texture data
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int data_width{ 0 },
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@@ -70,10 +84,18 @@ private:
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data_mapcount{ 0 };
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GLint data_format{ 0 },
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data_components{ 0 };
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GLint data_type = GL_UNSIGNED_BYTE;
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GLint wrap_mode_s = GL_REPEAT;
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GLint wrap_mode_t = GL_REPEAT;
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/*
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std::atomic<bool> is_loaded{ false }; // indicates the texture data was loaded and can be processed
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std::atomic<bool> is_good{ false }; // indicates the texture data was retrieved without errors
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*/
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static std::unordered_map<GLint, int> precompressed_formats;
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static std::unordered_map<GLint, GLint> drivercompressed_formats;
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static std::unordered_map<GLint, std::unordered_map<GLint, GLint>> mapping;
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static GLint m_activeunit;
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};
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typedef int texture_handle;
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@@ -91,10 +113,12 @@ public:
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unit( GLint const Textureunit );
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// creates texture object out of data stored in specified file
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texture_handle
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create( std::string Filename, bool const Loadnow = true );
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create( std::string Filename, bool const Loadnow = true, GLint Formathint = GL_SRGB_ALPHA );
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// binds specified texture to specified texture unit
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void
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bind( std::size_t const Unit, texture_handle const Texture );
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opengl_texture &
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mark_as_used( texture_handle const Texture );
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// provides direct access to specified texture object
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opengl_texture &
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texture( texture_handle const Texture ) const { return *(m_textures[ Texture ].first); }
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