Move some shared gfx plugin code into VideoCommon. Changed "Renderer" class to use virtual functions. (setting stuff up for video plugin merging)

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6433 8ced0084-cf51-0410-be5f-012b33b47a6e

1 files changed, 264 insertions, 0 deletions

diff --git a/Source/Core/VideoCommon/Src/RenderBase.cpp b/Source/Core/VideoCommon/Src/RenderBase.cpp
new file mode 100644
index 0000000000..d4b90bc802
--- /dev/null
+++ b/Source/Core/VideoCommon/Src/RenderBase.cpp
@@ -0,0 +1,264 @@
+// Copyright (C) 2003 Dolphin Project.
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, version 2.0.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License 2.0 for more details.
+
+// A copy of the GPL 2.0 should have been included with the program.
+// If not, see http://www.gnu.org/licenses/
+
+// Official SVN repository and contact information can be found at
+// http://code.google.com/p/dolphin-emu/
+
+// ---------------------------------------------------------------------------------------------
+// GC graphics pipeline
+// ---------------------------------------------------------------------------------------------
+// 3d commands are issued through the fifo. The gpu draws to the 2MB EFB.
+// The efb can be copied back into ram in two forms: as textures or as XFB.
+// The XFB is the region in RAM that the VI chip scans out to the television.
+// So, after all rendering to EFB is done, the image is copied into one of two XFBs in RAM.
+// Next frame, that one is scanned out and the other one gets the copy. = double buffering.
+// ---------------------------------------------------------------------------------------------
+
+
+#include "RenderBase.h"
+#include "Atomic.h"
+#include "MainBase.h"
+#include "VideoConfig.h"
+#include "FramebufferManagerBase.h"
+#include "Fifo.h"
+#include "Timer.h"
+#include "StringUtil.h"
+
+#include <cmath>
+#include <string>
+
+// TODO: Move these out of here.
+int frameCount;
+//int OSDChoice, OSDTime, OSDInternalW, OSDInternalH;
+
+SVideoInitialize g_VideoInitialize;
+PLUGIN_GLOBALS* globals;
+
+Renderer *g_renderer;
+
+bool s_bLastFrameDumped = false;
+Common::CriticalSection Renderer::s_criticalScreenshot;
+std::string Renderer::s_sScreenshotName;
+
+volatile bool Renderer::s_bScreenshot;
+
+// The framebuffer size
+int Renderer::s_target_width;
+int Renderer::s_target_height;
+
+// The custom resolution
+int Renderer::s_Fulltarget_width;
+int Renderer::s_Fulltarget_height;
+
+// TODO: Add functionality to reinit all the render targets when the window is resized.
+int Renderer::s_backbuffer_width;
+int Renderer::s_backbuffer_height;
+
+// Internal resolution scale (related to xScale/yScale for "Auto" scaling)
+float Renderer::EFBxScale;
+float Renderer::EFByScale;
+
+// ratio of backbuffer size and render area size
+float Renderer::xScale;
+float Renderer::yScale;
+
+unsigned int Renderer::s_XFB_width;
+unsigned int Renderer::s_XFB_height;
+
+int Renderer::s_LastEFBScale;
+
+bool Renderer::s_skipSwap;
+bool Renderer::XFBWrited;
+
+Renderer::Renderer()
+{
+	UpdateActiveConfig();
+}
+
+Renderer::~Renderer()
+{
+
+}
+
+void Renderer::RenderToXFB(u32 xfbAddr, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc)
+{
+	if (!fbWidth || !fbHeight)
+		return;
+
+	s_skipSwap = g_bSkipCurrentFrame;
+
+	VideoFifo_CheckEFBAccess();
+	VideoFifo_CheckSwapRequestAt(xfbAddr, fbWidth, fbHeight);
+	XFBWrited = true;
+
+	// XXX: Without the VI, how would we know what kind of field this is? So
+	// just use progressive.
+	if (g_ActiveConfig.bUseXFB)
+	{
+		FramebufferManagerBase::CopyToXFB(xfbAddr, fbWidth, fbHeight, sourceRc);
+	}
+	else
+	{
+		g_renderer->Swap(xfbAddr, FIELD_PROGRESSIVE, fbWidth, fbHeight,sourceRc);
+		Common::AtomicStoreRelease(s_swapRequested, FALSE);
+	}
+}
+
+// return true if target size changed
+bool Renderer::CalculateTargetSize(float multiplier)
+{
+	switch (s_LastEFBScale)
+	{
+		case 0:
+			EFBxScale = xScale;
+			EFByScale = yScale;
+			break;
+		case 1:
+			EFBxScale = ceilf(xScale);
+			EFByScale = ceilf(yScale);
+			break;
+		default:
+			EFBxScale = EFByScale = (float)(g_ActiveConfig.iEFBScale - 1);
+			break;
+	};
+
+	EFBxScale *= multiplier;
+	EFByScale *= multiplier;
+
+	const int m_newFrameBufferWidth  = (int)(EFB_WIDTH * EFBxScale);
+	const int m_newFrameBufferHeight = (int)(EFB_HEIGHT * EFByScale);
+
+	if (m_newFrameBufferWidth != s_target_width ||
+		m_newFrameBufferHeight != s_target_height)
+	{
+		s_Fulltarget_width  = s_target_width  = m_newFrameBufferWidth;
+		s_Fulltarget_height = s_target_height = m_newFrameBufferHeight;
+		
+		return true;
+	}
+	
+	return false;
+}
+
+void Renderer::SetScreenshot(const char *filename)
+{
+        s_criticalScreenshot.Enter();
+        s_sScreenshotName = filename;
+        s_bScreenshot = true;
+        s_criticalScreenshot.Leave();
+}
+
+// Create On-Screen-Messages
+void Renderer::DrawDebugText()
+{
+	// OSD Menu messages
+	if (g_ActiveConfig.bOSDHotKey)
+	{
+		if (OSDChoice > 0)
+		{
+			OSDTime = Common::Timer::GetTimeMs() + 3000;
+			OSDChoice = -OSDChoice;
+		}
+		if ((u32)OSDTime > Common::Timer::GetTimeMs())
+		{
+			const char* res_text = "";
+			switch (g_ActiveConfig.iEFBScale)
+			{
+			case 0:
+				res_text = "Auto (fractional)";
+				break;
+			case 1:
+				res_text = "Auto (integral)";
+				break;
+			case 2:
+				res_text = "Native";
+				break;
+			case 3:
+				res_text = "2x";
+				break;
+			case 4:
+				res_text = "3x";
+				break;
+			}
+
+			const char* ar_text = "";
+			switch(g_ActiveConfig.iAspectRatio)
+			{
+			case ASPECT_AUTO:
+				ar_text = "Auto";
+				break;
+			case ASPECT_FORCE_16_9:
+				ar_text = "16:9";
+				break;
+			case ASPECT_FORCE_4_3:
+				ar_text = "4:3";
+				break;
+			case ASPECT_STRETCH:
+				ar_text = "Stretch";
+				break;
+			}
+
+			const char* const efbcopy_text = g_ActiveConfig.bEFBCopyDisable ? "Disabled" :
+				g_ActiveConfig.bCopyEFBToTexture ? "to Texture" : "to RAM";
+
+			// The rows
+			const std::string lines[] =
+			{
+				std::string("3: Internal Resolution: ") + res_text,
+				std::string("4: Aspect Ratio: ") + ar_text + (g_ActiveConfig.bCrop ? " (crop)" : ""),
+				std::string("5: Copy EFB: ") + efbcopy_text,
+				std::string("6: Fog: ") + (g_ActiveConfig.bDisableFog ? "Disabled" : "Enabled"),
+				std::string("7: Material Lighting: ") + (g_ActiveConfig.bDisableLighting ? "Disabled" : "Enabled"),
+			};
+
+			enum { lines_count = sizeof(lines)/sizeof(*lines) };
+
+			std::string final_yellow, final_cyan;
+
+			// If there is more text than this we will have a collision
+			if (g_ActiveConfig.bShowFPS)
+			{
+				final_yellow = final_cyan = "\n\n";
+			}
+
+			// The latest changed setting in yellow
+			for (int i = 0; i != lines_count; ++i)
+			{
+				if (OSDChoice == -i - 1)
+					final_yellow += lines[i];
+				final_yellow += '\n';
+			}
+
+			// The other settings in cyan
+			for (int i = 0; i != lines_count; ++i)
+			{
+				if (OSDChoice != -i - 1)
+					final_cyan += lines[i];
+				final_cyan += '\n';
+			}
+
+			// Render a shadow
+			g_renderer->RenderText(final_cyan.c_str(), 21, 21, 0xDD000000);
+			g_renderer->RenderText(final_yellow.c_str(), 21, 21, 0xDD000000);
+			//and then the text
+			g_renderer->RenderText(final_cyan.c_str(), 20, 20, 0xFF00FFFF);
+			g_renderer->RenderText(final_yellow.c_str(), 20, 20, 0xFFFFFF00);
+		}
+	}
+}
+
+void UpdateViewport()
+{
+	g_renderer->UpdateViewport();
+}