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Diffstat (limited to 'src/libjin/Graphics/je_drawable.cpp')
| -rw-r--r-- | src/libjin/Graphics/je_drawable.cpp | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/src/libjin/Graphics/je_drawable.cpp b/src/libjin/Graphics/je_drawable.cpp new file mode 100644 index 0000000..9b5746a --- /dev/null +++ b/src/libjin/Graphics/je_drawable.cpp @@ -0,0 +1,125 @@ +#include "../core/je_configuration.h" +#if LIBJIN_MODULES_RENDER + +#include <stdlib.h> + +#include "../math/je_matrix.h" + +#include "shader/je_shader.h" +#include "je_drawable.h" + +namespace jin +{ + namespace graphics + { + + Drawable::Drawable(int w, int h) + : texture(0) + , size(w, h) + , anchor(0, 0) + { + vertex_coords[0] = 0; vertex_coords[1] = 0; + vertex_coords[2] = 0; vertex_coords[3] = h; + vertex_coords[4] = w; vertex_coords[5] = h; + vertex_coords[6] = w; vertex_coords[7] = 0; + + texture_coords[0] = 0; texture_coords[1] = 0; + texture_coords[2] = 0; texture_coords[3] = 1; + texture_coords[4] = 1; texture_coords[5] = 1; + texture_coords[6] = 1; texture_coords[7] = 0; + } + + Drawable::Drawable(const Bitmap* bitmap) + : texture(0) + , anchor(0, 0) + { + unsigned int w = size.w = bitmap->getWidth(); + unsigned int h = size.h = bitmap->getHeight(); + + vertex_coords[0] = 0; vertex_coords[1] = 0; + vertex_coords[2] = 0; vertex_coords[3] = h; + vertex_coords[4] = w; vertex_coords[5] = h; + vertex_coords[6] = w; vertex_coords[7] = 0; + + texture_coords[0] = 0; texture_coords[1] = 0; + texture_coords[2] = 0; texture_coords[3] = 1; + texture_coords[4] = 1; texture_coords[5] = 1; + texture_coords[6] = 1; texture_coords[7] = 0; + + const Color* pixels = bitmap->getPixels(); + + texture = gl.genTexture(); + gl.bindTexture(texture); + 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); + } + + Drawable::~Drawable() + { + glDeleteTextures(1, &texture); + } + + void Drawable::setAnchor(int x, int y) + { + anchor.x = x; + anchor.y = y; + } + + void Drawable::draw(int x, int y, float sx, float sy, float r) + { + gl.ModelMatrix.setTransformation(x, y, r, sx, sy, anchor.x, anchor.y); + + Shader* shader = Shader::getCurrentShader(); + shader->sendMatrix4(SHADER_MODEL_MATRIX, &gl.ModelMatrix); + shader->sendMatrix4(SHADER_PROJECTION_MATRIX, &gl.ProjectionMatrix); + shader->bindVertexPointer(2, GL_FLOAT, 0, vertex_coords); + shader->bindUVPointer(2, GL_FLOAT, 0, texture_coords); + + gl.bindTexture(texture); + gl.drawArrays(GL_QUADS, 0, 4); + gl.bindTexture(0); + } + + void Drawable::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 / size.w; + float sly = slice.y / size.h; + float slw = slice.w / size.w; + float slh = slice.h / size.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(texture); + gl.drawArrays(GL_QUADS, 0, 4); + gl.bindTexture(0); + } + + //void Drawable::setFilter(GLint min, GLint max) + //{ + // glTexParameteri(GL_) + //} + + } // namespace graphics +} // namespace jin + +#endif // LIBJIN_MODULES_RENDER
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