Merge branch 'master' into stable

1 files changed, 291 insertions, 0 deletions

diff --git a/Source/Core/VideoBackends/Software/SWRenderer.cpp b/Source/Core/VideoBackends/Software/SWRenderer.cpp
new file mode 100644
index 0000000000..761cc667df
--- /dev/null
+++ b/Source/Core/VideoBackends/Software/SWRenderer.cpp
@@ -0,0 +1,291 @@
+// Copyright 2009 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include <algorithm>
+#include <atomic>
+#include <mutex>
+#include <string>
+
+#include "Common/CommonTypes.h"
+#include "Common/StringUtil.h"
+#include "Core/Core.h"
+#include "VideoBackends/OGL/GLInterfaceBase.h"
+#include "VideoBackends/OGL/GLUtil.h"
+#include "VideoBackends/Software/RasterFont.h"
+#include "VideoBackends/Software/SWCommandProcessor.h"
+#include "VideoBackends/Software/SWRenderer.h"
+#include "VideoBackends/Software/SWStatistics.h"
+#include "VideoCommon/ImageWrite.h"
+#include "VideoCommon/OnScreenDisplay.h"
+
+static GLuint s_RenderTarget = 0;
+
+static GLint attr_pos = -1, attr_tex = -1;
+static GLint uni_tex = -1;
+static GLuint program;
+
+static u8 *s_xfbColorTexture[2];
+static int s_currentColorTexture = 0;
+
+static std::atomic<bool> s_bScreenshot;
+static std::mutex s_criticalScreenshot;
+static std::string s_sScreenshotName;
+
+
+// Rasterfont isn't compatible with GLES
+// degasus: I think it does, but I can't test it
+static RasterFont* s_pfont = nullptr;
+
+void SWRenderer::Init()
+{
+	s_bScreenshot.store(false);
+}
+
+void SWRenderer::Shutdown()
+{
+	delete[] s_xfbColorTexture[0];
+	delete[] s_xfbColorTexture[1];
+	glDeleteProgram(program);
+	glDeleteTextures(1, &s_RenderTarget);
+	if (GLInterface->GetMode() == GLInterfaceMode::MODE_OPENGL)
+	{
+		delete s_pfont;
+		s_pfont = nullptr;
+	}
+}
+
+static void CreateShaders()
+{
+	static const char *fragShaderText =
+		"#ifdef GL_ES\n"
+		"precision highp float;\n"
+		"#endif\n"
+		"varying vec2 TexCoordOut;\n"
+		"uniform sampler2D Texture;\n"
+		"void main() {\n"
+		"	gl_FragColor = texture2D(Texture, TexCoordOut);\n"
+		"}\n";
+	static const char *vertShaderText =
+		"#ifdef GL_ES\n"
+		"precision highp float;\n"
+		"#endif\n"
+		"attribute vec4 pos;\n"
+		"attribute vec2 TexCoordIn;\n "
+		"varying vec2 TexCoordOut;\n "
+		"void main() {\n"
+		"	gl_Position = pos;\n"
+		"	TexCoordOut = TexCoordIn;\n"
+		"}\n";
+
+	program = OpenGL_CompileProgram(vertShaderText, fragShaderText);
+
+	glUseProgram(program);
+
+	uni_tex = glGetUniformLocation(program, "Texture");
+	attr_pos = glGetAttribLocation(program, "pos");
+	attr_tex = glGetAttribLocation(program, "TexCoordIn");
+}
+
+void SWRenderer::Prepare()
+{
+	s_xfbColorTexture[0] = new u8[MAX_XFB_WIDTH * MAX_XFB_HEIGHT * 4];
+	s_xfbColorTexture[1] = new u8[MAX_XFB_WIDTH * MAX_XFB_HEIGHT * 4];
+
+	s_currentColorTexture = 0;
+
+	glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+	glPixelStorei(GL_UNPACK_ALIGNMENT, 4);  // 4-byte pixel alignment
+	glGenTextures(1, &s_RenderTarget);
+
+	CreateShaders();
+	// TODO: Enable for GLES once RasterFont supports GLES
+	if (GLInterface->GetMode() == GLInterfaceMode::MODE_OPENGL)
+	{
+		s_pfont = new RasterFont();
+		glEnable(GL_TEXTURE_2D);
+	}
+}
+
+void SWRenderer::SetScreenshot(const char *_szFilename)
+{
+	std::lock_guard<std::mutex> lk(s_criticalScreenshot);
+	s_sScreenshotName = _szFilename;
+	s_bScreenshot.store(true);
+}
+
+void SWRenderer::RenderText(const char* pstr, int left, int top, u32 color)
+{
+	if (GLInterface->GetMode() != GLInterfaceMode::MODE_OPENGL)
+		return;
+	int nBackbufferWidth = (int)GLInterface->GetBackBufferWidth();
+	int nBackbufferHeight = (int)GLInterface->GetBackBufferHeight();
+	glColor4f(((color >> 16) & 0xff) / 255.0f, ((color >> 8) & 0xff) / 255.0f,
+			((color >> 0) & 0xff) / 255.0f, ((color >> 24) & 0xFF) / 255.0f);
+	s_pfont->printMultilineText(pstr,
+			left * 2.0f / (float)nBackbufferWidth - 1,
+			1 - top * 2.0f / (float)nBackbufferHeight,
+			0, nBackbufferWidth, nBackbufferHeight);
+}
+
+void SWRenderer::DrawDebugText()
+{
+	std::string debugtext;
+
+	if (g_SWVideoConfig.bShowStats)
+	{
+		debugtext += StringFromFormat("Objects:            %i\n", swstats.thisFrame.numDrawnObjects);
+		debugtext += StringFromFormat("Primitives:         %i\n", swstats.thisFrame.numPrimatives);
+		debugtext += StringFromFormat("Vertices Loaded:    %i\n", swstats.thisFrame.numVerticesLoaded);
+
+		debugtext += StringFromFormat("Triangles Input:    %i\n", swstats.thisFrame.numTrianglesIn);
+		debugtext += StringFromFormat("Triangles Rejected: %i\n", swstats.thisFrame.numTrianglesRejected);
+		debugtext += StringFromFormat("Triangles Culled:   %i\n", swstats.thisFrame.numTrianglesCulled);
+		debugtext += StringFromFormat("Triangles Clipped:  %i\n", swstats.thisFrame.numTrianglesClipped);
+		debugtext += StringFromFormat("Triangles Drawn:    %i\n", swstats.thisFrame.numTrianglesDrawn);
+
+		debugtext += StringFromFormat("Rasterized Pix:     %i\n", swstats.thisFrame.rasterizedPixels);
+		debugtext += StringFromFormat("TEV Pix In:         %i\n", swstats.thisFrame.tevPixelsIn);
+		debugtext += StringFromFormat("TEV Pix Out:        %i\n", swstats.thisFrame.tevPixelsOut);
+	}
+
+	// Render a shadow, and then the text.
+	SWRenderer::RenderText(debugtext.c_str(), 21, 21, 0xDD000000);
+	SWRenderer::RenderText(debugtext.c_str(), 20, 20, 0xFFFFFF00);
+}
+
+u8* SWRenderer::GetNextColorTexture()
+{
+	return s_xfbColorTexture[!s_currentColorTexture];
+}
+
+u8* SWRenderer::GetCurrentColorTexture()
+{
+	return s_xfbColorTexture[s_currentColorTexture];
+}
+
+void SWRenderer::SwapColorTexture()
+{
+	s_currentColorTexture = !s_currentColorTexture;
+}
+
+void SWRenderer::UpdateColorTexture(EfbInterface::yuv422_packed *xfb, u32 fbWidth, u32 fbHeight)
+{
+	if (fbWidth * fbHeight > MAX_XFB_WIDTH * MAX_XFB_HEIGHT)
+	{
+		ERROR_LOG(VIDEO, "Framebuffer is too large: %ix%i", fbWidth, fbHeight);
+		return;
+	}
+
+	u32 offset = 0;
+	u8 *TexturePointer = GetNextColorTexture();
+
+	for (u16 y = 0; y < fbHeight; y++)
+	{
+		for (u16 x = 0; x < fbWidth; x+=2)
+		{
+			// We do this one color sample (aka 2 RGB pixles) at a time
+			int Y1 = xfb[x].Y - 16;
+			int Y2 = xfb[x + 1].Y - 16;
+			int U  = int(xfb[x].UV) - 128;
+			int V  = int(xfb[x + 1].UV) - 128;
+
+			// We do the inverse BT.601 conversion for YCbCr to RGB
+			// http://www.equasys.de/colorconversion.html#YCbCr-RGBColorFormatConversion
+			TexturePointer[offset++] = MathUtil::Clamp(int(1.164f * Y1              + 1.596f * V), 0, 255);
+			TexturePointer[offset++] = MathUtil::Clamp(int(1.164f * Y1 - 0.392f * U - 0.813f * V), 0, 255);
+			TexturePointer[offset++] = MathUtil::Clamp(int(1.164f * Y1 + 2.017f * U             ), 0, 255);
+			TexturePointer[offset++] = 255;
+
+			TexturePointer[offset++] = MathUtil::Clamp(int(1.164f * Y2              + 1.596f * V), 0, 255);
+			TexturePointer[offset++] = MathUtil::Clamp(int(1.164f * Y2 - 0.392f * U - 0.813f * V), 0, 255);
+			TexturePointer[offset++] = MathUtil::Clamp(int(1.164f * Y2 + 2.017f * U             ), 0, 255);
+			TexturePointer[offset++] = 255;
+		}
+		xfb += fbWidth;
+	}
+	SwapColorTexture();
+}
+
+// Called on the GPU thread
+void SWRenderer::Swap(u32 fbWidth, u32 fbHeight)
+{
+	GLInterface->Update(); // just updates the render window position and the backbuffer size
+	if (!g_SWVideoConfig.bHwRasterizer)
+		SWRenderer::DrawTexture(GetCurrentColorTexture(), fbWidth, fbHeight);
+
+	swstats.frameCount++;
+	SWRenderer::SwapBuffer();
+	Core::Callback_VideoCopiedToXFB(true); // FIXME: should this function be called FrameRendered?
+}
+
+void SWRenderer::DrawTexture(u8 *texture, int width, int height)
+{
+	// FIXME: This should add black bars when the game has set the VI to render less than the full xfb.
+
+	// Save screenshot
+	if (s_bScreenshot.load())
+	{
+		std::lock_guard<std::mutex> lk(s_criticalScreenshot);
+		TextureToPng(texture, width * 4, s_sScreenshotName, width, height, false);
+		// Reset settings
+		s_sScreenshotName.clear();
+		s_bScreenshot.store(false);
+	}
+
+	GLsizei glWidth = (GLsizei)GLInterface->GetBackBufferWidth();
+	GLsizei glHeight = (GLsizei)GLInterface->GetBackBufferHeight();
+
+
+	// Update GLViewPort
+	glViewport(0, 0, glWidth, glHeight);
+	glScissor(0, 0, glWidth, glHeight);
+
+	glBindTexture(GL_TEXTURE_2D, s_RenderTarget);
+
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0, GL_RGBA, GL_UNSIGNED_BYTE, texture);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+
+	glUseProgram(program);
+	static const GLfloat verts[4][2] = {
+		{ -1, -1}, // Left top
+		{ -1,  1}, // left bottom
+		{  1,  1}, // right bottom
+		{  1, -1} // right top
+	};
+	static const GLfloat texverts[4][2] = {
+		{0, 1},
+		{0, 0},
+		{1, 0},
+		{1, 1}
+	};
+
+	glVertexAttribPointer(attr_pos, 2, GL_FLOAT, GL_FALSE, 0, verts);
+	glVertexAttribPointer(attr_tex, 2, GL_FLOAT, GL_FALSE, 0, texverts);
+	glEnableVertexAttribArray(attr_pos);
+	glEnableVertexAttribArray(attr_tex);
+	glUniform1i(uni_tex, 0);
+	glActiveTexture(GL_TEXTURE0);
+	glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+	glDisableVertexAttribArray(attr_pos);
+	glDisableVertexAttribArray(attr_tex);
+
+	glBindTexture(GL_TEXTURE_2D, 0);
+}
+
+void SWRenderer::SwapBuffer()
+{
+	// Do our OSD callbacks
+	OSD::DoCallbacks(OSD::OSD_ONFRAME);
+
+	DrawDebugText();
+
+	glFlush();
+
+	GLInterface->Swap();
+
+	swstats.ResetFrame();
+
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+}