X-Git-Url: http://git.lukelau.me/?p=opengl.git;a=blobdiff_plain;f=material.cpp;fp=material.cpp;h=470f1a2caa370bd2292a474f2ccc34f39e9662bf;hp=0000000000000000000000000000000000000000;hb=37cba564a96018a5500e942498d4e48c0ebe73ed;hpb=ba5e08bf25de722d907748ce55b27a45b2b270bf

diff --git a/material.cpp b/material.cpp
new file mode 100644
index 0000000..470f1a2
--- /dev/null
+++ b/material.cpp
@@ -0,0 +1,42 @@
+#include "material.hpp"
+#include <iostream>
+#include <CoreGraphics/CoreGraphics.h>
+
+Material::Material(const aiMaterial &ai, GLuint progId): progId(progId) {
+	if (ai.GetTextureCount(aiTextureType_DIFFUSE) > 0) {
+		aiString path;
+		ai.GetTexture(aiTextureType_DIFFUSE, 0, &path);
+		texture = new Texture(std::string(path.C_Str()));
+	}
+	ai.Get(AI_MATKEY_SHININESS, shininess);
+	ai.Get(AI_MATKEY_COLOR_AMBIENT, ambient);
+	ai.Get(AI_MATKEY_COLOR_DIFFUSE, diffuse);
+	ai.Get(AI_MATKEY_COLOR_SPECULAR, specular);
+}
+
+Material::Texture::Texture(const std::string &path) {
+	auto provider = CGDataProviderCreateWithFilename(path.c_str());
+	auto ref = CGImageCreateWithJPEGDataProvider(provider, nullptr, false, kCGRenderingIntentDefault);
+	auto dataRef = CGDataProviderCopyData(CGImageGetDataProvider(ref));
+	auto img = (unsigned char*) CFDataGetBytePtr(dataRef);
+
+	glGenTextures(1, &texId);
+	glBindTexture(GL_TEXTURE_2D, texId);
+	auto width = CGImageGetWidth(ref), height = CGImageGetHeight(ref);
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, img);
+	glGenerateMipmap(GL_TEXTURE_2D);
+
+	CGImageRelease(ref);
+	CFRelease(dataRef);
+}
+
+void Material::bind() const {
+	glUniform3f(glGetUniformLocation(progId, "material.ambient"), ambient.r, ambient.g, ambient.b);
+	glUniform3f(glGetUniformLocation(progId, "material.diffuse"), diffuse.r, diffuse.g, diffuse.b);
+	glUniform3f(glGetUniformLocation(progId, "material.specular"), specular.r, specular.g, specular.b);
+	glUniform1f(glGetUniformLocation(progId, "material.shininess"), shininess);
+	glUniform1i(glGetUniformLocation(progId, "material.hasTexture"), texture != nullptr);
+
+	if (texture) 
+		glBindTexture(GL_TEXTURE_2D, texture->texId);
+}