From 303564fd702bd10162d47a98c22da24eb1a8bfac Mon Sep 17 00:00:00 2001
From: lightningterror <lightningterror@yahoo.com>
Date: Fri, 14 Apr 2017 19:09:01 +0200
Subject: [PATCH] GSdx: Move/add GT4 CRC

Moved a CRC hack to Aggressive that can cause or fix VRAM and RAM spikes.
This way people can switch between each config if they experience problems with either.
Varies on userconfig , game version and maybe hardware.

Added missing CRC game version for GT4 pal.

Note: The issue might be the same on GT3 and GTConcept , the code might
need to be removed for those games as well.
---
 plugins/GSdx/GSCrc.cpp    |  1 +
 plugins/GSdx/GSHwHack.cpp | 19 ++++++++++++-------
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/plugins/GSdx/GSCrc.cpp b/plugins/GSdx/GSCrc.cpp
index 40fda1cd56..47bfbf1ed5 100644
--- a/plugins/GSdx/GSCrc.cpp
+++ b/plugins/GSdx/GSCrc.cpp
@@ -137,6 +137,7 @@ CRC::Game CRC::m_games[] =
 	{0x29C28734, ICO, CH, 0},
 	{0xAEAD1CA3, GT4, JP, 0},
 	{0x30E41D93, GT4, KO, 0},
+	{0x715CF2EC, GT4, EU, 0},
 	{0x44A61C8F, GT4, EU, 0},
 	{0x0086E35B, GT4, EU, 0},
 	{0x77E61C8A, GT4, US, 0},
diff --git a/plugins/GSdx/GSHwHack.cpp b/plugins/GSdx/GSHwHack.cpp
index 856b251225..7d0c9a3440 100644
--- a/plugins/GSdx/GSHwHack.cpp
+++ b/plugins/GSdx/GSHwHack.cpp
@@ -1336,13 +1336,18 @@ bool GSC_GT4(const GSFrameInfo& fi, int& skip)
 	// Game requires to extract source from RT (block boundary) (texture cache limitation)
 	if(skip == 0)
 	{
-		if(fi.TME && fi.FBP >= 0x02f00 && fi.FPSM == PSM_PSMCT32 && (fi.TBP0 == 0x00000 || fi.TBP0 == 0x01180 /*|| fi.TBP0 == 0x01a40*/) && fi.TPSM == PSM_PSMT8) //TBP0 0x1a40 progressive
+		if(Aggressive)
 		{
-			skip = 770;	//ntsc, progressive 1540
-		}
-		if(g_crc_region == CRC::EU && fi.TME && fi.FBP >= 0x03400 && fi.FPSM == PSM_PSMCT32 && (fi.TBP0 == 0x00000 || fi.TBP0 == 0x01400 ) && fi.TPSM == PSM_PSMT8)
-		{
-			skip = 880;	//pal
+			// Removes layer obscuring the screen when the in-game brightness or contrast setting is set to any value but 0.
+			// The hack can cause VRAM/RAM spikes when both brightness and contrast settings are set to 0.
+			if(fi.TME && fi.FBP >= 0x02f00 && fi.FPSM == PSM_PSMCT32 && (fi.TBP0 == 0x00000 || fi.TBP0 == 0x01180 /*|| fi.TBP0 == 0x01a40*/) && fi.TPSM == PSM_PSMT8) //TBP0 0x1a40 progressive
+			{
+			skip = 770;	// ntsc, progressive 1540
+			}
+			if(g_crc_region == CRC::EU && fi.TME && fi.FBP >= 0x03400 && fi.FPSM == PSM_PSMCT32 && (fi.TBP0 == 0x00000 || fi.TBP0 == 0x01400 ) && fi.TPSM == PSM_PSMT8)
+			{
+			skip = 880;	// pal
+			}
 		}
 		else if(fi.TME && (fi.FBP == 0x00000 || fi.FBP == 0x01400) && fi.FPSM == PSM_PSMCT24 && fi.TBP0 >= 0x03420 && fi.TPSM == PSM_PSMT8)
 		{
@@ -2541,8 +2546,8 @@ void GSState::SetupCrcHack()
 		lut[CRC::StarWarsBattlefront] = GSC_StarWarsBattlefront;
 		// Dedicated shader for channel effect
 		lut[CRC::TouristTrophy] = GSC_TouristTrophy;
-		lut[CRC::GT3] = GSC_GT3;
 		lut[CRC::GT4] = GSC_GT4;
+		lut[CRC::GT3] = GSC_GT3;
 		lut[CRC::GTConcept] = GSC_GTConcept;
 		lut[CRC::TalesOfAbyss] = GSC_TalesOfAbyss;
 		lut[CRC::Tekken5] = GSC_Tekken5;