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https://github.com/dolphin-emu/dolphin.git
synced 2025-07-21 05:09:34 -06:00
Adding software rendering plugin. This is aimed at accurate emulation, not fast. Its more like a debugging tool than actually useful.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4407 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
donkopunchstania
201
Source/Plugins/Plugin_VideoSoftware/Src/Renderer.cpp
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201
Source/Plugins/Plugin_VideoSoftware/Src/Renderer.cpp
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// Copyright (C) 2003-2009 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#include "Common.h"
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#include "GLUtil.h"
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#include "Renderer.h"
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#include "main.h"
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#include "Statistics.h"
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#include "../../Plugin_VideoOGL/Src/rasterfont.h"
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#define VSYNC_ENABLED 0
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static GLuint s_RenderTarget = 0;
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RasterFont* s_pfont = NULL;
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void Renderer::Init(SVideoInitialize *_pVideoInitialize)
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{
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if (!OpenGL_Create(g_VideoInitialize, 640, 480)) // 640x480 will be the default if all else fails
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{
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g_VideoInitialize.pLog("Renderer::Create failed\n", TRUE);
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return;
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}
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_pVideoInitialize->pPeekMessages = g_VideoInitialize.pPeekMessages;
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_pVideoInitialize->pUpdateFPSDisplay = g_VideoInitialize.pUpdateFPSDisplay;
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_pVideoInitialize->pWindowHandle = g_VideoInitialize.pWindowHandle;
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}
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void Renderer::Shutdown()
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{
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glDeleteTextures(1, &s_RenderTarget);
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delete s_pfont;
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s_pfont = 0;
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}
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void Renderer::Prepare()
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{
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OpenGL_MakeCurrent();
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// Init extension support.
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if (glewInit() != GLEW_OK) {
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ERROR_LOG(VIDEO, "glewInit() failed!Does your video card support OpenGL 2.x?");
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return;
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}
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// Handle VSync on/off
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#ifdef _WIN32
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if (WGLEW_EXT_swap_control)
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wglSwapIntervalEXT(VSYNC_ENABLED);
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else
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ERROR_LOG(VIDEO, "no support for SwapInterval (framerate clamped to monitor refresh rate)Does your video card support OpenGL 2.x?");
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#elif defined(HAVE_X11) && HAVE_X11
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if (glXSwapIntervalSGI)
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glXSwapIntervalSGI(VSYNC_ENABLED);
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else
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ERROR_LOG(VIDEO, "no support for SwapInterval (framerate clamped to monitor refresh rate)");
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#endif
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glStencilFunc(GL_ALWAYS, 0, 0);
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// used by hw rasterizer if it enables blending and depth test
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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glDepthFunc(GL_LEQUAL);
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glShadeModel(GL_SMOOTH);
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glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
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glClearDepth(1.0f);
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glEnable(GL_SCISSOR_TEST);
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glPixelStorei(GL_UNPACK_ALIGNMENT, 4); // 4-byte pixel alignment
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glDisable(GL_LIGHTING);
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glDisable(GL_BLEND);
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glDisable(GL_STENCIL_TEST);
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//glDisable(GL_SCISSOR_TEST);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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s_pfont = new RasterFont();
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// legacy multitexturing: select texture channel only.
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glActiveTexture(GL_TEXTURE0);
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glClientActiveTexture(GL_TEXTURE0);
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glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
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glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
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glGenTextures(1, &s_RenderTarget);
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glEnable(GL_TEXTURE_RECTANGLE_ARB);
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}
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void Renderer::RenderText(const char* pstr, int left, int top, u32 color)
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{
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int nBackbufferWidth = (int)OpenGL_GetBackbufferWidth();
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int nBackbufferHeight = (int)OpenGL_GetBackbufferHeight();
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glColor4f(((color>>16) & 0xff)/255.0f, ((color>> 8) & 0xff)/255.0f,
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((color>> 0) & 0xff)/255.0f, ((color>>24) & 0xFF)/255.0f);
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s_pfont->printMultilineText(pstr,
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left * 2.0f / (float)nBackbufferWidth - 1,
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1 - top * 2.0f / (float)nBackbufferHeight,
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0, nBackbufferWidth, nBackbufferHeight);
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}
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void Renderer::DrawDebugText()
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{
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char debugtext_buffer[8192];
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char *p = debugtext_buffer;
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p[0] = 0;
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if (g_Config.bShowStats)
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{
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p+=sprintf(p,"Objects: %i\n",stats.thisFrame.numDrawnObjects);
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p+=sprintf(p,"Primatives: %i\n",stats.thisFrame.numPrimatives);
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p+=sprintf(p,"Vertices Loaded: %i\n",stats.thisFrame.numVerticesLoaded);
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p+=sprintf(p,"Triangles Input: %i\n",stats.thisFrame.numTrianglesIn);
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p+=sprintf(p,"Triangles Rejected: %i\n",stats.thisFrame.numTrianglesRejected);
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p+=sprintf(p,"Triangles Culled: %i\n",stats.thisFrame.numTrianglesCulled);
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p+=sprintf(p,"Triangles Clipped: %i\n",stats.thisFrame.numTrianglesClipped);
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p+=sprintf(p,"Triangles Drawn: %i\n",stats.thisFrame.numTrianglesDrawn);
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p+=sprintf(p,"Rasterized Pix: %i\n",stats.thisFrame.rasterizedPixels);
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p+=sprintf(p,"TEV Pix In: %i\n",stats.thisFrame.tevPixelsIn);
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p+=sprintf(p,"TEV Pix Out: %i\n",stats.thisFrame.tevPixelsOut);
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}
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// Render a shadow, and then the text.
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Renderer::RenderText(debugtext_buffer, 21, 21, 0xDD000000);
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Renderer::RenderText(debugtext_buffer, 20, 20, 0xFFFFFF00);
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}
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void Renderer::DrawTexture(u8 *texture, int width, int height)
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{
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OpenGL_Update(); // just updates the render window position and the backbuffer size
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GLsizei glWidth = (GLsizei)OpenGL_GetBackbufferWidth();
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GLsizei glHeight = (GLsizei)OpenGL_GetBackbufferHeight();
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// Update GLViewPort
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glViewport(0, 0, glWidth, glHeight);
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glScissor(0, 0, glWidth, glHeight);
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glBindTexture(GL_TEXTURE_RECTANGLE_ARB, s_RenderTarget);
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glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8, (GLsizei)width, (GLsizei)height, 0, GL_RGBA, GL_UNSIGNED_BYTE, texture);
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glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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GL_REPORT_ERRORD();
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GLfloat u_max = (GLfloat)width;
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GLfloat v_max = (GLfloat)glHeight;
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glBegin(GL_QUADS);
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glTexCoord2f(0, v_max); glVertex2f(-1, -1);
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glTexCoord2f(0, 0); glVertex2f(-1, 1);
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glTexCoord2f(u_max, 0); glVertex2f( 1, 1);
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glTexCoord2f(u_max, v_max); glVertex2f( 1, -1);
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glEnd();
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glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
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}
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void Renderer::SwapBuffer()
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{
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DrawDebugText();
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glFlush();
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OpenGL_SwapBuffers();
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GL_REPORT_ERRORD();
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stats.ResetFrame();
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// Clear framebuffer
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glClearColor(0, 0, 0, 0);
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glClearDepth(1.0);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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GL_REPORT_ERRORD();
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}
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