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Diffstat (limited to 'src/libjin/Graphics/je_graphic.cpp')
| -rw-r--r-- | src/libjin/Graphics/je_graphic.cpp | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/src/libjin/Graphics/je_graphic.cpp b/src/libjin/Graphics/je_graphic.cpp new file mode 100644 index 0000000..831e409 --- /dev/null +++ b/src/libjin/Graphics/je_graphic.cpp @@ -0,0 +1,117 @@ +#include "../core/je_configuration.h" +#if defined(jin_graphics) + +#include <stdlib.h> + +#include "../math/je_matrix.h" + +#include "shader/je_shader.h" +#include "je_graphic.h" + +namespace JinEngine +{ + namespace Graphics + { + + Graphic::Graphic(int w, int h) + : mTexture(0) + , mSize(w, h) + { + mVertexCoords[0] = 0; mVertexCoords[1] = 0; + mVertexCoords[2] = 0; mVertexCoords[3] = h; + mVertexCoords[4] = w; mVertexCoords[5] = h; + mVertexCoords[6] = w; mVertexCoords[7] = 0; + + mTextureCoords[0] = 0; mTextureCoords[1] = 0; + mTextureCoords[2] = 0; mTextureCoords[3] = 1; + mTextureCoords[4] = 1; mTextureCoords[5] = 1; + mTextureCoords[6] = 1; mTextureCoords[7] = 0; + } + + Graphic::Graphic(const Bitmap* bitmap) + : mTexture(0) + { + uint32 w = mSize.w = bitmap->getWidth(); + uint32 h = mSize.h = bitmap->getHeight(); + + mVertexCoords[0] = 0; mVertexCoords[1] = 0; + mVertexCoords[2] = 0; mVertexCoords[3] = h; + mVertexCoords[4] = w; mVertexCoords[5] = h; + mVertexCoords[6] = w; mVertexCoords[7] = 0; + + mTextureCoords[0] = 0; mTextureCoords[1] = 0; + mTextureCoords[2] = 0; mTextureCoords[3] = 1; + mTextureCoords[4] = 1; mTextureCoords[5] = 1; + mTextureCoords[6] = 1; mTextureCoords[7] = 0; + + const Color* pixels = bitmap->getPixels(); + + mTexture = gl.genTexture(); + gl.bindTexture(mTexture); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + gl.texImage(GL_RGBA8, w, h, GL_RGBA, GL_UNSIGNED_BYTE, pixels); + gl.bindTexture(0); + } + + Graphic::~Graphic() + { + glDeleteTextures(1, &mTexture); + } + + void Graphic::draw(int x, int y, float sx, float sy, float r, float ox, float oy) + { + gl.ModelMatrix.setTransformation(x, y, r, sx, sy, ox, oy); + + Shader* shader = Shader::getCurrentShader(); + shader->sendMatrix4(SHADER_MODEL_MATRIX, &gl.ModelMatrix); + shader->sendMatrix4(SHADER_PROJECTION_MATRIX, &gl.ProjectionMatrix); + shader->bindVertexPointer(2, GL_FLOAT, 0, mVertexCoords); + shader->bindUVPointer(2, GL_FLOAT, 0, mTextureCoords); + + gl.bindTexture(mTexture); + gl.drawArrays(GL_QUADS, 0, 4); + gl.bindTexture(0); + } + + void Graphic::draw(const Math::Quad& slice, int x, int y, float sx, float sy, float r, float ax, float ay) + { + float vertCoords[8] = { + 0, 0, + 0, slice.h, + slice.w, slice.h, + slice.w, 0 + }; + float slx = slice.x / mSize.w; + float sly = slice.y / mSize.h; + float slw = slice.w / mSize.w; + float slh = slice.h / mSize.h; + float texCoords[8] = { + slx, sly, + slx, sly + slh, + slx + slw, sly + slh, + slx + slw, sly + }; + + gl.ModelMatrix.setTransformation(x, y, r, sx, sy, ax, ay); + + Shader* shader = Shader::getCurrentShader(); + shader->sendMatrix4(SHADER_MODEL_MATRIX, &gl.ModelMatrix); + shader->sendMatrix4(SHADER_PROJECTION_MATRIX, &gl.ProjectionMatrix); + shader->bindVertexPointer(2, GL_FLOAT, 0, vertCoords); + shader->bindUVPointer(2, GL_FLOAT, 0, texCoords); + + gl.bindTexture(mTexture); + gl.drawArrays(GL_QUADS, 0, 4); + gl.bindTexture(0); + } + + //void Graphic::setFilter(GLint min, GLint max) + //{ + // glTexParameteri(GL_) + //} + + } // namespace Graphics +} // namespace JinEngine + +#endif // defined(jin_graphics)
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