339 lines
10 KiB
C++
339 lines
10 KiB
C++
// Copyright 2010 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 "Common/CommonTypes.h"
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#include "VideoCommon/BPStructs.h"
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#include "VideoCommon/Debugger.h"
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#include "VideoCommon/GeometryShaderManager.h"
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#include "VideoCommon/IndexGenerator.h"
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#include "VideoCommon/MainBase.h"
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#include "VideoCommon/NativeVertexFormat.h"
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#include "VideoCommon/OpcodeDecoding.h"
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#include "VideoCommon/PerfQueryBase.h"
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#include "VideoCommon/PixelShaderManager.h"
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#include "VideoCommon/RenderBase.h"
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#include "VideoCommon/Statistics.h"
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#include "VideoCommon/TextureCacheBase.h"
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#include "VideoCommon/VertexLoaderManager.h"
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#include "VideoCommon/VertexManagerBase.h"
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#include "VideoCommon/VertexShaderManager.h"
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#include "VideoCommon/VideoConfig.h"
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#include "VideoCommon/XFMemory.h"
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VertexManager *g_vertex_manager;
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u8 *VertexManager::s_pCurBufferPointer;
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u8 *VertexManager::s_pBaseBufferPointer;
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u8 *VertexManager::s_pEndBufferPointer;
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PrimitiveType VertexManager::current_primitive_type;
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Slope VertexManager::s_zslope;
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bool VertexManager::s_is_flushed;
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bool VertexManager::s_cull_all;
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static const PrimitiveType primitive_from_gx[8] = {
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PRIMITIVE_TRIANGLES, // GX_DRAW_QUADS
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PRIMITIVE_TRIANGLES, // GX_DRAW_QUADS_2
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PRIMITIVE_TRIANGLES, // GX_DRAW_TRIANGLES
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PRIMITIVE_TRIANGLES, // GX_DRAW_TRIANGLE_STRIP
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PRIMITIVE_TRIANGLES, // GX_DRAW_TRIANGLE_FAN
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PRIMITIVE_LINES, // GX_DRAW_LINES
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PRIMITIVE_LINES, // GX_DRAW_LINE_STRIP
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PRIMITIVE_POINTS, // GX_DRAW_POINTS
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};
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VertexManager::VertexManager()
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{
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s_is_flushed = true;
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s_cull_all = false;
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}
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VertexManager::~VertexManager()
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{
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}
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u32 VertexManager::GetRemainingSize()
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{
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return (u32)(s_pEndBufferPointer - s_pCurBufferPointer);
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}
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DataReader VertexManager::PrepareForAdditionalData(int primitive, u32 count, u32 stride, bool cullall)
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{
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// The SSE vertex loader can write up to 4 bytes past the end
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u32 const needed_vertex_bytes = count * stride + 4;
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// We can't merge different kinds of primitives, so we have to flush here
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if (current_primitive_type != primitive_from_gx[primitive])
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Flush();
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current_primitive_type = primitive_from_gx[primitive];
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// Check for size in buffer, if the buffer gets full, call Flush()
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if (!s_is_flushed && ( count > IndexGenerator::GetRemainingIndices() ||
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count > GetRemainingIndices(primitive) || needed_vertex_bytes > GetRemainingSize()))
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{
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Flush();
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if (count > IndexGenerator::GetRemainingIndices())
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ERROR_LOG(VIDEO, "Too little remaining index values. Use 32-bit or reset them on flush.");
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if (count > GetRemainingIndices(primitive))
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ERROR_LOG(VIDEO, "VertexManager: Buffer not large enough for all indices! "
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"Increase MAXIBUFFERSIZE or we need primitive breaking after all.");
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if (needed_vertex_bytes > GetRemainingSize())
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ERROR_LOG(VIDEO, "VertexManager: Buffer not large enough for all vertices! "
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"Increase MAXVBUFFERSIZE or we need primitive breaking after all.");
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}
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s_cull_all = cullall;
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// need to alloc new buffer
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if (s_is_flushed)
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{
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g_vertex_manager->ResetBuffer(stride);
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s_is_flushed = false;
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}
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return DataReader(s_pCurBufferPointer, s_pEndBufferPointer);
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}
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void VertexManager::FlushData(u32 count, u32 stride)
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{
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s_pCurBufferPointer += count * stride;
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}
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u32 VertexManager::GetRemainingIndices(int primitive)
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{
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u32 index_len = MAXIBUFFERSIZE - IndexGenerator::GetIndexLen();
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if (g_Config.backend_info.bSupportsPrimitiveRestart)
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{
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switch (primitive)
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{
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case GX_DRAW_QUADS:
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case GX_DRAW_QUADS_2:
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return index_len / 5 * 4;
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case GX_DRAW_TRIANGLES:
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return index_len / 4 * 3;
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case GX_DRAW_TRIANGLE_STRIP:
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return index_len / 1 - 1;
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case GX_DRAW_TRIANGLE_FAN:
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return index_len / 6 * 4 + 1;
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case GX_DRAW_LINES:
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return index_len;
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case GX_DRAW_LINE_STRIP:
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return index_len / 2 + 1;
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case GX_DRAW_POINTS:
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return index_len;
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default:
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return 0;
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}
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}
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else
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{
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switch (primitive)
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{
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case GX_DRAW_QUADS:
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case GX_DRAW_QUADS_2:
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return index_len / 6 * 4;
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case GX_DRAW_TRIANGLES:
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return index_len;
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case GX_DRAW_TRIANGLE_STRIP:
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return index_len / 3 + 2;
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case GX_DRAW_TRIANGLE_FAN:
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return index_len / 3 + 2;
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case GX_DRAW_LINES:
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return index_len;
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case GX_DRAW_LINE_STRIP:
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return index_len / 2 + 1;
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case GX_DRAW_POINTS:
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return index_len;
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default:
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return 0;
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}
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}
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}
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void VertexManager::Flush()
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{
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if (s_is_flushed)
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return;
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// loading a state will invalidate BP, so check for it
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g_video_backend->CheckInvalidState();
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#if defined(_DEBUG) || defined(DEBUGFAST)
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PRIM_LOG("frame%d:\n texgen=%d, numchan=%d, dualtex=%d, ztex=%d, cole=%d, alpe=%d, ze=%d", g_ActiveConfig.iSaveTargetId, xfmem.numTexGen.numTexGens,
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xfmem.numChan.numColorChans, xfmem.dualTexTrans.enabled, bpmem.ztex2.op,
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(int)bpmem.blendmode.colorupdate, (int)bpmem.blendmode.alphaupdate, (int)bpmem.zmode.updateenable);
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for (unsigned int i = 0; i < xfmem.numChan.numColorChans; ++i)
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{
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LitChannel* ch = &xfmem.color[i];
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PRIM_LOG("colchan%d: matsrc=%d, light=0x%x, ambsrc=%d, diffunc=%d, attfunc=%d", i, ch->matsource, ch->GetFullLightMask(), ch->ambsource, ch->diffusefunc, ch->attnfunc);
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ch = &xfmem.alpha[i];
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PRIM_LOG("alpchan%d: matsrc=%d, light=0x%x, ambsrc=%d, diffunc=%d, attfunc=%d", i, ch->matsource, ch->GetFullLightMask(), ch->ambsource, ch->diffusefunc, ch->attnfunc);
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}
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for (unsigned int i = 0; i < xfmem.numTexGen.numTexGens; ++i)
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{
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TexMtxInfo tinfo = xfmem.texMtxInfo[i];
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if (tinfo.texgentype != XF_TEXGEN_EMBOSS_MAP) tinfo.hex &= 0x7ff;
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if (tinfo.texgentype != XF_TEXGEN_REGULAR) tinfo.projection = 0;
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PRIM_LOG("txgen%d: proj=%d, input=%d, gentype=%d, srcrow=%d, embsrc=%d, emblght=%d, postmtx=%d, postnorm=%d",
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i, tinfo.projection, tinfo.inputform, tinfo.texgentype, tinfo.sourcerow, tinfo.embosssourceshift, tinfo.embosslightshift,
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xfmem.postMtxInfo[i].index, xfmem.postMtxInfo[i].normalize);
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}
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PRIM_LOG("pixel: tev=%d, ind=%d, texgen=%d, dstalpha=%d, alphatest=0x%x", (int)bpmem.genMode.numtevstages+1, (int)bpmem.genMode.numindstages,
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(int)bpmem.genMode.numtexgens, (u32)bpmem.dstalpha.enable, (bpmem.alpha_test.hex>>16)&0xff);
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#endif
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// If the primitave is marked CullAll. All we need to do is update the vertex constants and calculate the zfreeze refrence slope
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if (!s_cull_all)
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{
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BitSet32 usedtextures;
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for (u32 i = 0; i < bpmem.genMode.numtevstages + 1u; ++i)
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if (bpmem.tevorders[i / 2].getEnable(i & 1))
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usedtextures[bpmem.tevorders[i/2].getTexMap(i & 1)] = true;
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if (bpmem.genMode.numindstages > 0)
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for (unsigned int i = 0; i < bpmem.genMode.numtevstages + 1u; ++i)
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if (bpmem.tevind[i].IsActive() && bpmem.tevind[i].bt < bpmem.genMode.numindstages)
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usedtextures[bpmem.tevindref.getTexMap(bpmem.tevind[i].bt)] = true;
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TextureCache::UnbindTextures();
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for (unsigned int i : usedtextures)
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{
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const TextureCache::TCacheEntryBase* tentry = TextureCache::Load(i);
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if (tentry)
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{
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g_renderer->SetSamplerState(i & 3, i >> 2, tentry->is_custom_tex);
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PixelShaderManager::SetTexDims(i, tentry->native_width, tentry->native_height);
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}
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else
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{
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ERROR_LOG(VIDEO, "error loading texture");
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}
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}
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TextureCache::BindTextures();
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}
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// set global vertex constants
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VertexShaderManager::SetConstants();
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// Calculate ZSlope for zfreeze
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if (!bpmem.genMode.zfreeze)
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{
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// Must be done after VertexShaderManager::SetConstants()
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CalculateZSlope(VertexLoaderManager::GetCurrentVertexFormat());
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}
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else if (s_zslope.dirty && !s_cull_all) // or apply any dirty ZSlopes
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{
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PixelShaderManager::SetZSlope(s_zslope.dfdx, s_zslope.dfdy, s_zslope.f0);
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s_zslope.dirty = false;
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}
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if (!s_cull_all)
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{
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// set the rest of the global constants
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GeometryShaderManager::SetConstants();
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PixelShaderManager::SetConstants();
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bool useDstAlpha = !g_ActiveConfig.bDstAlphaPass &&
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bpmem.dstalpha.enable &&
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bpmem.blendmode.alphaupdate &&
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bpmem.zcontrol.pixel_format == PEControl::RGBA6_Z24;
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if (PerfQueryBase::ShouldEmulate())
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g_perf_query->EnableQuery(bpmem.zcontrol.early_ztest ? PQG_ZCOMP_ZCOMPLOC : PQG_ZCOMP);
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g_vertex_manager->vFlush(useDstAlpha);
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if (PerfQueryBase::ShouldEmulate())
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g_perf_query->DisableQuery(bpmem.zcontrol.early_ztest ? PQG_ZCOMP_ZCOMPLOC : PQG_ZCOMP);
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}
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GFX_DEBUGGER_PAUSE_AT(NEXT_FLUSH, true);
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if (xfmem.numTexGen.numTexGens != bpmem.genMode.numtexgens)
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ERROR_LOG(VIDEO, "xf.numtexgens (%d) does not match bp.numtexgens (%d). Error in command stream.", xfmem.numTexGen.numTexGens, bpmem.genMode.numtexgens.Value());
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s_is_flushed = true;
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s_cull_all = false;
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}
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void VertexManager::DoState(PointerWrap& p)
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{
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p.Do(s_zslope);
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g_vertex_manager->vDoState(p);
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}
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void VertexManager::CalculateZSlope(NativeVertexFormat* format)
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{
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float out[12];
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float viewOffset[2] = { xfmem.viewport.xOrig - bpmem.scissorOffset.x * 2,
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xfmem.viewport.yOrig - bpmem.scissorOffset.y * 2};
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if (current_primitive_type != PRIMITIVE_TRIANGLES)
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return;
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// Global matrix ID.
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u32 mtxIdx = g_main_cp_state.matrix_index_a.PosNormalMtxIdx;
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const PortableVertexDeclaration vert_decl = format->GetVertexDeclaration();
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// Make sure the buffer contains at least 3 vertices.
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if ((s_pCurBufferPointer - s_pBaseBufferPointer) < (vert_decl.stride * 3))
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return;
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// Lookup vertices of the last rendered triangle and software-transform them
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// This allows us to determine the depth slope, which will be used if z-freeze
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// is enabled in the following flush.
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for (unsigned int i = 0; i < 3; ++i)
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{
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// If this vertex format has per-vertex position matrix IDs, look it up.
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if (vert_decl.posmtx.enable)
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mtxIdx = VertexLoaderManager::position_matrix_index[2 - i];
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if (vert_decl.position.components == 2)
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VertexLoaderManager::position_cache[2 - i][2] = 0;
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VertexShaderManager::TransformToClipSpace(&VertexLoaderManager::position_cache[2 - i][0], &out[i * 4], mtxIdx);
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// Transform to Screenspace
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float inv_w = 1.0f / out[3 + i * 4];
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out[0 + i * 4] = out[0 + i * 4] * inv_w * xfmem.viewport.wd + viewOffset[0];
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out[1 + i * 4] = out[1 + i * 4] * inv_w * xfmem.viewport.ht + viewOffset[1];
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out[2 + i * 4] = out[2 + i * 4] * inv_w * xfmem.viewport.zRange + xfmem.viewport.farZ;
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}
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float dx31 = out[8] - out[0];
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float dx12 = out[0] - out[4];
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float dy12 = out[1] - out[5];
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float dy31 = out[9] - out[1];
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float DF31 = out[10] - out[2];
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float DF21 = out[6] - out[2];
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float a = DF31 * -dy12 - DF21 * dy31;
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float b = dx31 * DF21 + dx12 * DF31;
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float c = -dx12 * dy31 - dx31 * -dy12;
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// Sometimes we process de-generate triangles. Stop any divide by zeros
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if (c == 0)
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return;
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s_zslope.dfdx = -a / c;
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s_zslope.dfdy = -b / c;
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s_zslope.f0 = out[2] - (out[0] * s_zslope.dfdx + out[1] * s_zslope.dfdy);
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s_zslope.dirty = true;
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}
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