216 lines
5.9 KiB
C++
216 lines
5.9 KiB
C++
// Copyright 2013 Dolphin Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#include <fstream>
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#include <string>
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#include <vector>
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#include "Common/FileUtil.h"
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#include "Common/MemoryUtil.h"
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#include "Common/StringUtil.h"
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#include "VideoBackends/OGL/main.h"
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#include "VideoBackends/OGL/ProgramShaderCache.h"
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#include "VideoBackends/OGL/Render.h"
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#include "VideoBackends/OGL/StreamBuffer.h"
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#include "VideoBackends/OGL/TextureCache.h"
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#include "VideoBackends/OGL/VertexManager.h"
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#include "VideoCommon/BPMemory.h"
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#include "VideoCommon/DriverDetails.h"
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#include "VideoCommon/Fifo.h"
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#include "VideoCommon/ImageWrite.h"
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#include "VideoCommon/IndexGenerator.h"
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#include "VideoCommon/PixelShaderManager.h"
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#include "VideoCommon/Statistics.h"
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#include "VideoCommon/VertexLoaderManager.h"
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#include "VideoCommon/VertexShaderGen.h"
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#include "VideoCommon/VertexShaderManager.h"
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#include "VideoCommon/VideoConfig.h"
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namespace OGL
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{
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//This are the initially requested size for the buffers expressed in bytes
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const u32 MAX_IBUFFER_SIZE = 2*1024*1024;
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const u32 MAX_VBUFFER_SIZE = 32*1024*1024;
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static StreamBuffer *s_vertexBuffer;
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static StreamBuffer *s_indexBuffer;
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static size_t s_baseVertex;
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static size_t s_index_offset;
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VertexManager::VertexManager()
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{
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CreateDeviceObjects();
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}
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VertexManager::~VertexManager()
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{
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DestroyDeviceObjects();
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}
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void VertexManager::CreateDeviceObjects()
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{
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s_vertexBuffer = StreamBuffer::Create(GL_ARRAY_BUFFER, MAX_VBUFFER_SIZE);
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m_vertex_buffers = s_vertexBuffer->m_buffer;
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s_indexBuffer = StreamBuffer::Create(GL_ELEMENT_ARRAY_BUFFER, MAX_IBUFFER_SIZE);
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m_index_buffers = s_indexBuffer->m_buffer;
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m_last_vao = 0;
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}
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void VertexManager::DestroyDeviceObjects()
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{
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glBindBuffer(GL_ARRAY_BUFFER, 0 );
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0 );
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delete s_vertexBuffer;
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delete s_indexBuffer;
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}
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void VertexManager::PrepareDrawBuffers(u32 stride)
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{
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u32 vertex_data_size = IndexGenerator::GetNumVerts() * stride;
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u32 index_data_size = IndexGenerator::GetIndexLen() * sizeof(u16);
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s_vertexBuffer->Unmap(vertex_data_size);
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s_indexBuffer->Unmap(index_data_size);
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ADDSTAT(stats.thisFrame.bytesVertexStreamed, vertex_data_size);
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ADDSTAT(stats.thisFrame.bytesIndexStreamed, index_data_size);
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}
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void VertexManager::ResetBuffer(u32 stride)
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{
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auto buffer = s_vertexBuffer->Map(MAXVBUFFERSIZE, stride);
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s_pCurBufferPointer = s_pBaseBufferPointer = buffer.first;
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s_pEndBufferPointer = buffer.first + MAXVBUFFERSIZE;
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s_baseVertex = buffer.second / stride;
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buffer = s_indexBuffer->Map(MAXIBUFFERSIZE * sizeof(u16));
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IndexGenerator::Start((u16*)buffer.first);
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s_index_offset = buffer.second;
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}
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void VertexManager::Draw(u32 stride)
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{
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u32 index_size = IndexGenerator::GetIndexLen();
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u32 max_index = IndexGenerator::GetNumVerts();
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GLenum primitive_mode = 0;
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switch (current_primitive_type)
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{
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case PRIMITIVE_POINTS:
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primitive_mode = GL_POINTS;
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break;
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case PRIMITIVE_LINES:
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primitive_mode = GL_LINES;
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break;
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case PRIMITIVE_TRIANGLES:
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primitive_mode = g_ActiveConfig.backend_info.bSupportsPrimitiveRestart ? GL_TRIANGLE_STRIP : GL_TRIANGLES;
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break;
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}
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if (g_ogl_config.bSupportsGLBaseVertex)
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{
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glDrawRangeElementsBaseVertex(primitive_mode, 0, max_index, index_size, GL_UNSIGNED_SHORT, (u8*)nullptr+s_index_offset, (GLint)s_baseVertex);
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}
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else
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{
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glDrawRangeElements(primitive_mode, 0, max_index, index_size, GL_UNSIGNED_SHORT, (u8*)nullptr+s_index_offset);
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}
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INCSTAT(stats.thisFrame.numDrawCalls);
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}
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void VertexManager::vFlush(bool useDstAlpha)
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{
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GLVertexFormat *nativeVertexFmt = (GLVertexFormat*)VertexLoaderManager::GetCurrentVertexFormat();
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u32 stride = nativeVertexFmt->GetVertexStride();
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if (m_last_vao != nativeVertexFmt->VAO)
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{
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glBindVertexArray(nativeVertexFmt->VAO);
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m_last_vao = nativeVertexFmt->VAO;
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}
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PrepareDrawBuffers(stride);
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// Makes sure we can actually do Dual source blending
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bool dualSourcePossible = g_ActiveConfig.backend_info.bSupportsDualSourceBlend;
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// If host supports GL_ARB_blend_func_extended, we can do dst alpha in
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// the same pass as regular rendering.
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if (useDstAlpha && dualSourcePossible)
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{
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ProgramShaderCache::SetShader(DSTALPHA_DUAL_SOURCE_BLEND, nativeVertexFmt->m_components);
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}
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else
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{
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ProgramShaderCache::SetShader(DSTALPHA_NONE, nativeVertexFmt->m_components);
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}
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// upload global constants
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ProgramShaderCache::UploadConstants();
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// setup the pointers
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nativeVertexFmt->SetupVertexPointers();
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Draw(stride);
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// run through vertex groups again to set alpha
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if (useDstAlpha && !dualSourcePossible)
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{
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ProgramShaderCache::SetShader(DSTALPHA_ALPHA_PASS, nativeVertexFmt->m_components);
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// only update alpha
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glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_TRUE);
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glDisable(GL_BLEND);
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Draw(stride);
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// restore color mask
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g_renderer->SetColorMask();
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if (bpmem.blendmode.blendenable || bpmem.blendmode.subtract)
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glEnable(GL_BLEND);
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}
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#if defined(_DEBUG) || defined(DEBUGFAST)
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if (g_ActiveConfig.iLog & CONF_SAVESHADERS)
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{
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// save the shaders
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ProgramShaderCache::PCacheEntry prog = ProgramShaderCache::GetShaderProgram();
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std::string filename = StringFromFormat("%sps%.3d.txt", File::GetUserPath(D_DUMPFRAMES_IDX).c_str(), g_ActiveConfig.iSaveTargetId);
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std::ofstream fps;
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OpenFStream(fps, filename, std::ios_base::out);
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fps << prog.shader.strpprog.c_str();
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filename = StringFromFormat("%svs%.3d.txt", File::GetUserPath(D_DUMPFRAMES_IDX).c_str(), g_ActiveConfig.iSaveTargetId);
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std::ofstream fvs;
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OpenFStream(fvs, filename, std::ios_base::out);
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fvs << prog.shader.strvprog.c_str();
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}
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if (g_ActiveConfig.iLog & CONF_SAVETARGETS)
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{
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std::string filename = StringFromFormat("%starg%.3d.png", File::GetUserPath(D_DUMPFRAMES_IDX).c_str(), g_ActiveConfig.iSaveTargetId);
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TargetRectangle tr;
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tr.left = 0;
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tr.right = Renderer::GetTargetWidth();
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tr.top = 0;
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tr.bottom = Renderer::GetTargetHeight();
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g_renderer->SaveScreenshot(filename, tr);
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}
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#endif
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g_Config.iSaveTargetId++;
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ClearEFBCache();
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}
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} // namespace
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