Update Files

Kha/Kinc/Backends/Graphics3/OpenGL1/Sources/kinc/backend/IndexBufferImpl.cpp

@@ -0,0 +1,58 @@
+#include "ogl.h"
+
+#include <Kore/Graphics3/Graphics.h>
+
+using namespace Kore;
+
+Graphics3::IndexBuffer *IndexBufferImpl::current = nullptr;
+
+IndexBufferImpl::IndexBufferImpl(int count) : myCount(count) {}
+
+Graphics3::IndexBuffer::IndexBuffer(int indexCount) : IndexBufferImpl(indexCount) {
+	glGenBuffers(1, &bufferId);
+	glCheckErrors();
+	data = new int[indexCount];
+#if defined(KINC_ANDROID) || defined(KINC_RASPBERRY_PI)
+	shortData = new u16[indexCount];
+#endif
+}
+
+Graphics3::IndexBuffer::~IndexBuffer() {
+	unset();
+	delete[] data;
+}
+
+int *Graphics3::IndexBuffer::lock() {
+	return data;
+}
+
+void Graphics3::IndexBuffer::unlock() {
+#if defined(KINC_ANDROID) || defined(KINC_RASPBERRY_PI)
+	for (int i = 0; i < myCount; ++i)
+		shortData[i] = (u16)data[i];
+#endif
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, bufferId);
+	glCheckErrors();
+#if defined(KINC_ANDROID) || defined(KINC_RASPBERRY_PI)
+	glBufferData(GL_ELEMENT_ARRAY_BUFFER, myCount * 2, shortData, GL_STATIC_DRAW);
+	glCheckErrors();
+#else
+	glBufferData(GL_ELEMENT_ARRAY_BUFFER, myCount * 4, data, GL_STATIC_DRAW);
+	glCheckErrors();
+#endif
+}
+
+void Graphics3::IndexBuffer::_set() {
+	current = this;
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, bufferId);
+	glCheckErrors();
+}
+
+void IndexBufferImpl::unset() {
+	if ((void *)current == (void *)this)
+		current = nullptr;
+}
+
+int Graphics3::IndexBuffer::count() {
+	return myCount;
+}