From 71af97a5e30739577bde35db24ec9f160b0bea65 Mon Sep 17 00:00:00 2001
From: oy <Tom_Adams@web.de>
Date: Sat, 6 Oct 2012 23:31:02 +0200
Subject: fixed texture memory usage calculation in graphics threaded

Conflicts:

	src/engine/client/graphics_threaded.cpp
---
 src/engine/client/graphics_threaded.cpp | 55 ++++++++++++---------------------
 1 file changed, 20 insertions(+), 35 deletions(-)

(limited to 'src/engine/client/graphics_threaded.cpp')

diff --git a/src/engine/client/graphics_threaded.cpp b/src/engine/client/graphics_threaded.cpp
index 8653b62a..751e4ad2 100644
--- a/src/engine/client/graphics_threaded.cpp
+++ b/src/engine/client/graphics_threaded.cpp
@@ -228,7 +228,7 @@ void CGraphics_Threaded::WrapClamp()
 
 int CGraphics_Threaded::MemoryUsage() const
 {
-	return m_TextureMemoryUsage;
+	return m_pBackend->MemoryUsage();
 }
 
 void CGraphics_Threaded::MapScreen(float TopLeftX, float TopLeftY, float BottomRightX, float BottomRightY)
@@ -293,8 +293,7 @@ int CGraphics_Threaded::UnloadTexture(int Index)
 	Cmd.m_Slot = Index;
 	m_pCommandBuffer->AddCommand(Cmd);
 
-	m_aTextures[Index].m_Next = m_FirstFreeTexture;
-	m_TextureMemoryUsage -= m_aTextures[Index].m_MemSize;
+	m_aTextures[Index] = m_FirstFreeTexture;
 	m_FirstFreeTexture = Index;
 	return 0;
 }
@@ -307,6 +306,16 @@ static int ImageFormatToTexFormat(int Format)
 	return CCommandBuffer::TEXFORMAT_RGBA;
 }
 
+static int ImageFormatToPixelSize(int Format)
+{
+	switch(Format)
+	{
+	case CImageInfo::FORMAT_RGB: return 3;
+	case CImageInfo::FORMAT_ALPHA: return 1;
+	default: return 4;
+	}
+}
+
 
 int CGraphics_Threaded::LoadTextureRawSub(int TextureID, int x, int y, int Width, int Height, int Format, const void *pData)
 {
@@ -319,13 +328,7 @@ int CGraphics_Threaded::LoadTextureRawSub(int TextureID, int x, int y, int Width
 	Cmd.m_Format = ImageFormatToTexFormat(Format);
 
 	// calculate memory usage
-	int PixelSize = 4;
-	if(Format == CImageInfo::FORMAT_RGB)
-		PixelSize = 3;
-	else if(Format == CImageInfo::FORMAT_ALPHA)
-		PixelSize = 1;
-
-	int MemSize = Width*Height*PixelSize;
+	int MemSize = Width*Height*ImageFormatToPixelSize(Format);
 
 	// copy texture data
 	void *pTmpData = mem_alloc(MemSize, sizeof(void*));
@@ -345,13 +348,14 @@ int CGraphics_Threaded::LoadTextureRaw(int Width, int Height, int Format, const
 
 	// grab texture
 	int Tex = m_FirstFreeTexture;
-	m_FirstFreeTexture = m_aTextures[Tex].m_Next;
-	m_aTextures[Tex].m_Next = -1;
+	m_FirstFreeTexture = m_aTextureIndices[Tex];
+	m_aTextureIndices[Tex] = -1;
 
 	CCommandBuffer::SCommand_Texture_Create Cmd;
 	Cmd.m_Slot = Tex;
 	Cmd.m_Width = Width;
 	Cmd.m_Height = Height;
+	Cmd.m_PixelSize = ImageFormatToPixelSize(Format);
 	Cmd.m_Format = ImageFormatToTexFormat(Format);
 	Cmd.m_StoreFormat = ImageFormatToTexFormat(StoreFormat);
 
@@ -362,16 +366,8 @@ int CGraphics_Threaded::LoadTextureRaw(int Width, int Height, int Format, const
 	if(g_Config.m_GfxTextureCompression)
 		Cmd.m_Flags |= CCommandBuffer::TEXFLAG_COMPRESSED;
 
-	// calculate memory usage
-	int PixelSize = 4;
-	if(Format == CImageInfo::FORMAT_RGB)
-		PixelSize = 3;
-	else if(Format == CImageInfo::FORMAT_ALPHA)
-		PixelSize = 1;
-
-	int MemSize = Width*Height*PixelSize;
-
 	// copy texture data
+	int MemSize = Width*Height*Cmd.m_PixelSize;
 	void *pTmpData = mem_alloc(MemSize, sizeof(void*));
 	mem_copy(pTmpData, pData, MemSize);
 	Cmd.m_pData = pTmpData;
@@ -379,17 +375,6 @@ int CGraphics_Threaded::LoadTextureRaw(int Width, int Height, int Format, const
 	//
 	m_pCommandBuffer->AddCommand(Cmd);
 
-	// calculate memory usage
-	int MemUsage = MemSize;
-	while(Width > 2 && Height > 2)
-	{
-		Width>>=1;
-		Height>>=1;
-		MemUsage += Width*Height*PixelSize;
-	}
-
-	m_TextureMemoryUsage += MemUsage;
-	//mem_free(pTmpData);
 	return Tex;
 }
 
@@ -775,9 +760,9 @@ int CGraphics_Threaded::Init()
 
 	// init textures
 	m_FirstFreeTexture = 0;
-	for(int i = 0; i < MAX_TEXTURES; i++)
-		m_aTextures[i].m_Next = i+1;
-	m_aTextures[MAX_TEXTURES-1].m_Next = -1;
+	for(int i = 0; i < MAX_TEXTURES-1; i++)
+		m_aTextureIndices[i] = i+1;
+	m_aTextureIndices[MAX_TEXTURES-1] = -1;
 
 	m_pBackend = CreateGraphicsBackend();
 	if(InitWindow() != 0)
-- 
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