From 184fad06231d50eb1c250e5b8774cefef9cfcc32 Mon Sep 17 00:00:00 2001
From: fincs <fincs.alt1@gmail.com>
Date: Tue, 19 Jan 2016 22:32:55 +0100
Subject: [PATCH] Add C3D_GetCmdBufUsage

---
 include/c3d/base.h | 2 ++
 source/base.c      | 7 +++++++
 source/context.h   | 1 +
 3 files changed, 10 insertions(+)

diff --git a/include/c3d/base.h b/include/c3d/base.h
index 5a33d8c..b6e5798 100644
--- a/include/c3d/base.h
+++ b/include/c3d/base.h
@@ -13,6 +13,8 @@ bool C3D_Init(size_t cmdBufSize);
 void C3D_FlushAsync(void);
 void C3D_Fini(void);
 
+float C3D_GetCmdBufUsage(void);
+
 void C3D_BindProgram(shaderProgram_s* program);
 
 void C3D_SetViewport(u32 x, u32 y, u32 w, u32 h);
diff --git a/source/base.c b/source/base.c
index 9d400f0..9db1a55 100644
--- a/source/base.c
+++ b/source/base.c
@@ -75,6 +75,7 @@ bool C3D_Init(size_t cmdBufSize)
 
 	ctx->cmdBufSize = cmdBufSize/8; // Half of the size of the cmdbuf, in words
 	ctx->cmdBuf = (u32*)linearAlloc(cmdBufSize);
+	ctx->cmdBufUsage = 0;
 	if (!ctx->cmdBuf) return false;
 
 	GPUCMD_SetBuffer(ctx->cmdBuf, ctx->cmdBufSize, 0);
@@ -267,6 +268,7 @@ void C3Di_FinalizeFrame(u32** pBuf, u32* pSize)
 
 	GPUCMD_Finalize();
 	GPUCMD_GetBuffer(pBuf, NULL, pSize);
+	ctx->cmdBufUsage = (float)(*pSize) / ctx->cmdBufSize;
 	*pSize *= 4;
 
 	ctx->flags ^= C3DiF_CmdBuffer;
@@ -292,6 +294,11 @@ void C3D_FlushAsync(void)
 	GX_ProcessCommandList(cmdBuf, cmdBufSize, 0x0);
 }
 
+float C3D_GetCmdBufUsage(void)
+{
+	return C3Di_GetContext()->cmdBufUsage;
+}
+
 void C3D_Fini(void)
 {
 	C3D_Context* ctx = C3Di_GetContext();
diff --git a/source/context.h b/source/context.h
index d1270e2..97bc3b1 100644
--- a/source/context.h
+++ b/source/context.h
@@ -28,6 +28,7 @@ typedef struct
 {
 	u32* cmdBuf;
 	size_t cmdBufSize;
+	float cmdBufUsage;
 
 	u32 flags;
 	shaderProgram_s* program;