added rest of basics in TSE_Core
This commit is contained in:
359
TSE_Core/src/elements/Texture.cpp
Normal file
359
TSE_Core/src/elements/Texture.cpp
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@@ -0,0 +1,359 @@
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#include "Texture.hpp"
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#include "Debug.hpp"
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#include "Color.hpp"
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#include "ErrorTextureData.hpp"
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TSE::Texture::Texture(const string &path)
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{
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FREE_IMAGE_FORMAT fif = FREE_IMAGE_FORMAT::FIF_UNKNOWN;
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bmp = nullptr;
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imagePtr = nullptr;
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Size = Vector2(0,0);
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fif = FreeImage_GetFileType(path.c_str(), 0);
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if(fif == FREE_IMAGE_FORMAT::FIF_UNKNOWN)
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fif = FreeImage_GetFIFFromFilename(path.c_str());
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if(fif == FREE_IMAGE_FORMAT::FIF_UNKNOWN)
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{
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TSE_ERROR("Failed to load image. Unsupported Format.");
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Bpp = 24;
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makeError(*this);
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return;
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}
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if(FreeImage_FIFSupportsReading(fif))
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{
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bmp = FreeImage_Load(fif, path.c_str());
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if(FreeImage_GetBPP(bmp) != 32)
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{
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auto tmpBmp = FreeImage_ConvertTo32Bits(bmp);
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FreeImage_Unload(bmp);
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bmp = tmpBmp;
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}
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}
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if(bmp == nullptr)
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{
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TSE_ERROR("Failed to load image. Bitmap was nullptr.");
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Bpp = 24;
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makeError(*this);
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return;
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}
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Bpp = FreeImage_GetBPP(bmp);
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imagePtr = FreeImage_GetBits(bmp);
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switch (Bpp)
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{
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case 32:
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chanels = 4;
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break;
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case 24:
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chanels = 3;
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case 8:
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chanels = 4;
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}
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Size = Vector2(FreeImage_GetWidth(bmp), FreeImage_GetHeight(bmp));
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regist();
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}
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TSE::Texture::Texture(const int &width, const int &height, int bpp)
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{
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switch (bpp)
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{
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case 32:
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chanels = 4;
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break;
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case 24:
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chanels = 3;
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case 8:
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chanels = 4;
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}
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Bpp = bpp;
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Size = Vector2(width, height);
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bmp = FreeImage_Allocate(width, height, bpp);
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imagePtr = FreeImage_GetBits(bmp);
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regist();
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}
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TSE::Texture::Texture(const Vector2 &size, int bpp)
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{
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switch (bpp)
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{
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case 32:
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chanels = 4;
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break;
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case 24:
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chanels = 3;
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case 8:
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chanels = 4;
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}
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Bpp = bpp;
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Size = size;
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bmp = FreeImage_Allocate(size.x, size.y, bpp);
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imagePtr = FreeImage_GetBits(bmp);
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regist();
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}
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TSE::Texture::~Texture()
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{
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if(bmp != nullptr)
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{
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FreeImage_Unload(bmp);
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bmp = nullptr;
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}
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if(TextureID != 0)
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{
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//glDeleteTextures(1, &TextureID); --> need to do in platform openGL
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PlatformDestroy();
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TextureID = 0;
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}
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}
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TSE::uint TSE::Texture::bpp() const
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{
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return Bpp;
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}
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TSE::Vector2 TSE::Texture::size() const
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{
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return Size;
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}
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float TSE::Texture::width() const
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{
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return Size.x;
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}
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float TSE::Texture::height() const
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{
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return Size.y;
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}
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TSE::byte TSE::Texture::Chanels() const
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{
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return chanels;
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}
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TSE::byte *TSE::Texture::GetImagePtr() const
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{
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return imagePtr;
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}
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void TSE::Texture::SetPixel(const Vector2 &pos, const Color &c)
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{
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SetPixel(pos.x, pos.y, c);
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}
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void TSE::Texture::GetPixel(const Vector2 &pos, Color &c) const
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{
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GetPixel(pos.x, pos.y, c);
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}
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void TSE::Texture::SetPixelNoApply(const Vector2 &pos, const Color &c)
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{
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SetPixelNoApply(pos.x, pos.y, c);
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}
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void TSE::Texture::ToSprite(Sprite &s)
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{
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s = Sprite(this, Rect(0,0,1,1));
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}
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void TSE::Texture::SetChanels(const byte &ch)
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{
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chanels = ch;
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}
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uint TSE::Texture::GetTextureId() const
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{
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return TextureID;
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}
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void TSE::Texture::SetTextureId(uint id)
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{
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TextureID = id;
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}
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void TSE::Texture::SetPixel(const int &x, const int &y, const Color &c)
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{
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SetPixelNoApply(x,y,c);
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Apply();
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}
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void TSE::Texture::GetPixel(const int &x, const int &y, Color &c) const
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{
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if(x >= width() || x < 0 ||y >= height() || y < 0)
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{
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TSE_WARNING("trying to access pixel outside of texture.\n pixel: (" + std::to_string(x) + ";" + std::to_string(y) + ")\nTexture size: (" + std::to_string(width()) + ";" + std::to_string(height()) );
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return;
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}
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byte* pixel = getPixelPointer(x,y);
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byte b = *pixel++;
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byte g = *pixel++;
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byte r = *pixel++;
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byte a = *pixel++;
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if(bpp() == 8)
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c = Color(r,r,r);
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else if(bpp() == 24)
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c = Color(r,g,b,a);
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else if(bpp() == 32)
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c = Color(r,g,b);
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}
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void TSE::Texture::Fill(const Color &c)
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{
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for (int x = 0; x < width(); x++)
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{
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for (int y = 0; y < height(); y++)
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{
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SetPixelNoApply(x,y,c);
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}
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}
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Apply();
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}
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void TSE::Texture::SetPixelNoApply(const int &x, const int &y, const Color &c)
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{
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if(x >= width() || x < 0 ||y >= height() || y < 0)
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{
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TSE_WARNING("trying to access pixel outside of texture.\n pixel: (" + std::to_string(x) + ";" + std::to_string(y) + ")\nTexture size: (" + std::to_string(width()) + ";" + std::to_string(height()) );
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return;
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}
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byte* pixel = getPixelPointer(x,y);
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if(chanels == 4 && bpp() == 8)
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{
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byte r2bit = static_cast<byte>(c.r * 3.0f);
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byte g2bit = static_cast<byte>(c.g * 3.0f);
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byte b2bit = static_cast<byte>(c.b * 3.0f);
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byte a2bit = static_cast<byte>(c.a * 3.0f);
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byte result = (r2bit << 6) | (g2bit << 4) | (b2bit << 2) | a2bit;
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*pixel++ = result;
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return;
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}
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*pixel++ = c.B();
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if(bpp() > 8)
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{
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*pixel++ = c.G();
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*pixel++ = c.R();
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if(bpp() > 24)
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*pixel++ = c.A();
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}
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}
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void TSE::Texture::AddPixelNoApply(const int &x, const int &y, const Color &c)
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{
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if(x >= width() || x < 0 ||y >= height() || y < 0)
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{
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TSE_WARNING("trying to access pixel outside of texture.\n pixel: (" + std::to_string(x) + ";" + std::to_string(y) + ")\nTexture size: (" + std::to_string(width()) + ";" + std::to_string(height()) );
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return;
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}
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byte* pixel = getPixelPointer(x,y);
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if(chanels == 4 && bpp() == 8) //TODO add propper adding, becouse currently is only setting
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{
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byte r2bit = static_cast<byte>(c.r * 3.0f);
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byte g2bit = static_cast<byte>(c.g * 3.0f);
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byte b2bit = static_cast<byte>(c.b * 3.0f);
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byte a2bit = static_cast<byte>(c.a * 3.0f);
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byte result = (r2bit << 6) | (g2bit << 4) | (b2bit << 2) | a2bit;
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*pixel++ = result;
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return;
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}
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Color bc(pixel[2], pixel[1], pixel[0], pixel[3]);
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bc = c + bc;
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*pixel++ = bc.B();
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if(bpp() > 8)
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{
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*pixel++ = bc.G();
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*pixel++ = bc.R();
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if(bpp() > 24)
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*pixel++ = bc.A();
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}
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}
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void TSE::Texture::Recreate(const int &x, const int &y, const int &bpp, const int &chanels)
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{
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if(bmp != nullptr)
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{
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FreeImage_Unload(bmp);
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bmp = nullptr;
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}
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if(TextureID != 0)
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{
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PlatformDestroy();
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TextureID = 0;
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}
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this->chanels = chanels;
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Bpp = bpp;
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Size = Vector2(x, y);
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bmp = FreeImage_Allocate(x, y, bpp);
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imagePtr = FreeImage_GetBits(bmp);
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regist();
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}
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void TSE::Texture::SavePNG(const std::string &path) const
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{
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if(!FreeImage_Save(FREE_IMAGE_FORMAT::FIF_PNG, bmp, path.c_str(), PNG_Z_NO_COMPRESSION))
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TSE_ERROR("Failed to save Image to \"" + path + "\"");
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}
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TSE::byte *TSE::Texture::getPixelPointer(const int &x, const int &y) const
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{
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int alphaoffset = y * 2;
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if(bpp() > 24)
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alphaoffset = 0;
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int offset = ((y * width() + x) * (bpp() / 8) + alphaoffset);
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return imagePtr + offset;
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}
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void TSE::Texture::makeError(Texture &tex)
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{
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tex.Bpp = errorTexBpp;
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tex.chanels = errorTexChannels;
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tex.Size = Vector2(errorTexWidth, errorTexHeight);
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tex.bmp = FreeImage_ConvertFromRawBits(
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const_cast<BYTE*>(errorTextureData), // wichtig: cast!
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errorTexWidth,
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errorTexHeight,
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errorTexWidth * errorTexChannels,
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errorTexBpp,
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FI_RGBA_RED_MASK,
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FI_RGBA_GREEN_MASK,
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FI_RGBA_BLUE_MASK,
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true // top-down
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);
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tex.imagePtr = FreeImage_GetBits(tex.bmp);
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tex.regist();
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}
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void TSE::Texture::bind() const
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{
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helper->Bind(this);
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}
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void TSE::Texture::unbind() const
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{
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helper->UnBind(this);
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}
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void TSE::Texture::Apply()
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{
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helper->Apply(this);
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}
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void TSE::Texture::regist()
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{
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helper->Regist(this);
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}
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void TSE::Texture::PlatformDestroy()
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{
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helper->PlatromDestroy(this);
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}
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