Initial sources

engine/render/render_shared.h

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+// Shared header for render stuff
+#ifndef RENDER_SHARED_H
+#define RENDER_SHARED_H
+
+#include "utils/maths.h"
+
+enum BufferAccess
+{
+	BA_READ_ONLY,
+	BA_WRITE_ONLY,
+	BA_READ_WRITE
+};
+
+// texture format
+enum PixelFormat
+{
+	PF_UNKNOWN,
+	PF_R8G8B8,
+	PF_R8G8B8A8,
+	PF_R8G8B8F,
+	PF_R8G8B8A8F,
+
+	// Depth formats
+	PF_DEPTH32F
+};
+
+// Blending functions
+enum BlendFactor
+{
+	BF_ZERO,
+	BF_ONE,
+	BF_SRC_COLOR,
+	BF_ONE_MINUS_SRC_COLOR,
+	BF_DST_COLOR,
+	BF_ONE_MINUS_DST_COLOR,
+	BF_SRC_ALPHA,
+	BF_ONE_MINUS_SRC_ALPHA,
+	BF_DST_ALPHA,
+	BF_ONE_MINUS_DST_ALPHA,
+	BF_CONSTANT_COLOR,
+	BF_ONE_MINUS_CONSTANT_COLOR,
+	BF_CONSTANT_ALPHA,
+	BF_ONE_MINUS_CONSTANT_ALPHA
+};
+
+enum TextureSurfaceType
+{
+	TST_COLOR = 1 << 0,
+	TST_DEPTH = 1 << 1,
+	TST_STENCIL = 1 << 2,
+};
+
+enum PrimitiveType
+{
+	PT_POINTS,
+	PT_LINES,
+	PT_TRIANGLES
+};
+
+// Base structure for render view (view and projection matrices, viewport settings)
+struct View
+{
+	int x, y;
+	int width, height;
+
+	float fov;
+};
+
+// Global instance of render view
+extern View g_renderView;
+
+// pixel format convertion
+uint GetGLPF(PixelFormat pf);
+uint GetGLInternalPF(PixelFormat pf);
+uint GetGLTypePF(PixelFormat pf);
+
+// Blending factor convertion
+uint GetGLBlendFactor(BlendFactor factor);
+
+// Stretched picture vertex
+//struct StretchedVertex
+//{
+//	Vec3 position;
+//	Vec2 texcoord;
+//};
+
+//#define MAX_STRETCH_VX 12 * sizeof(StretchedVertex)
+
+#endif