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ddnet/src/engine/client/graphics_threaded.cpp

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/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
/* If you are missing that file, acquire a complete release at teeworlds.com. */
#include <base/detect.h>
#include <base/math.h>
#include "SDL.h"
#include "SDL_opengl.h"
#include <base/system.h>
#include <engine/external/pnglite/pnglite.h>
#include <engine/shared/config.h>
#include <engine/graphics.h>
#include <engine/storage.h>
#include <engine/keys.h>
#include <engine/console.h>
#include <math.h> // cosf, sinf
#include "graphics_threaded.h"
static CVideoMode g_aFakeModes[] = {
{320,240,8,8,8}, {400,300,8,8,8}, {640,480,8,8,8},
{720,400,8,8,8}, {768,576,8,8,8}, {800,600,8,8,8},
{1024,600,8,8,8}, {1024,768,8,8,8}, {1152,864,8,8,8},
{1280,768,8,8,8}, {1280,800,8,8,8}, {1280,960,8,8,8},
{1280,1024,8,8,8}, {1368,768,8,8,8}, {1400,1050,8,8,8},
{1440,900,8,8,8}, {1440,1050,8,8,8}, {1600,1000,8,8,8},
{1600,1200,8,8,8}, {1680,1050,8,8,8}, {1792,1344,8,8,8},
{1800,1440,8,8,8}, {1856,1392,8,8,8}, {1920,1080,8,8,8},
{1920,1200,8,8,8}, {1920,1440,8,8,8}, {1920,2400,8,8,8},
{2048,1536,8,8,8},
{320,240,5,6,5}, {400,300,5,6,5}, {640,480,5,6,5},
{720,400,5,6,5}, {768,576,5,6,5}, {800,600,5,6,5},
{1024,600,5,6,5}, {1024,768,5,6,5}, {1152,864,5,6,5},
{1280,768,5,6,5}, {1280,800,5,6,5}, {1280,960,5,6,5},
{1280,1024,5,6,5}, {1368,768,5,6,5}, {1400,1050,5,6,5},
{1440,900,5,6,5}, {1440,1050,5,6,5}, {1600,1000,5,6,5},
{1600,1200,5,6,5}, {1680,1050,5,6,5}, {1792,1344,5,6,5},
{1800,1440,5,6,5}, {1856,1392,5,6,5}, {1920,1080,5,6,5},
{1920,1200,5,6,5}, {1920,1440,5,6,5}, {1920,2400,5,6,5},
{2048,1536,5,6,5}
};
class CCommandProcessorFragment_General
{
public:
bool RunCommand(const CCommandBuffer::SCommand * pBaseCommand)
{
switch(pBaseCommand->m_Cmd)
{
case CCommandBuffer::CMD_SIGNAL:
{
const CCommandBuffer::SCommand_Signal *pCommand = static_cast<const CCommandBuffer::SCommand_Signal *>(pBaseCommand);
pCommand->m_pSemaphore->signal();
} break;
default:
return false;
break;
}
return true;
}
};
class CCommandProcessorFragment_OpenGL
{
GLuint m_aTextures[CCommandBuffer::MAX_TEXTURES];
public:
CCommandProcessorFragment_OpenGL()
{
mem_zero(m_aTextures, sizeof(m_aTextures));
}
void SetState(const CCommandBuffer::SState &State)
{
// blend
switch(State.m_BlendMode)
{
case CCommandBuffer::BLEND_NONE:
glDisable(GL_BLEND);
break;
case CCommandBuffer::BLEND_ALPHA:
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
break;
case CCommandBuffer::BLEND_ADDITIVE:
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
break;
default:
dbg_msg("render", "unknown blendmode %d\n", State.m_BlendMode);
};
// clip
if(State.m_ClipEnable)
{
glScissor(State.m_ClipX, State.m_ClipY, State.m_ClipW, State.m_ClipH);
glEnable(GL_SCISSOR_TEST);
}
else
glDisable(GL_SCISSOR_TEST);
// texture
if(State.m_Texture >= 0 && State.m_Texture < CCommandBuffer::MAX_TEXTURES)
{
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, m_aTextures[State.m_Texture]);
}
else
glDisable(GL_TEXTURE_2D);
// screen mapping
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(State.m_ScreenTL.x, State.m_ScreenBR.x, State.m_ScreenBR.y, State.m_ScreenTL.y, 1.0f, 10.f);
}
int TexFormatToOpenGLFormat(int TexFormat)
{
if(TexFormat == CCommandBuffer::TEXFORMAT_RGB) return GL_RGB;
if(TexFormat == CCommandBuffer::TEXFORMAT_ALPHA) return GL_ALPHA;
if(TexFormat == CCommandBuffer::TEXFORMAT_RGBA) return GL_RGBA;
return GL_RGBA;
}
void Cmd_Texture_Update(const CCommandBuffer::SCommand_Texture_Update *pCommand)
{
glBindTexture(GL_TEXTURE_2D, m_aTextures[pCommand->m_Slot]);
glTexSubImage2D(GL_TEXTURE_2D, 0, pCommand->m_X, pCommand->m_Y, pCommand->m_Width, pCommand->m_Height,
TexFormatToOpenGLFormat(pCommand->m_Format), GL_UNSIGNED_BYTE, pCommand->m_pData);
mem_free(pCommand->m_pData);
}
void Cmd_Texture_Destroy(const CCommandBuffer::SCommand_Texture_Destroy *pCommand)
{
glDeleteTextures(1, &m_aTextures[pCommand->m_Slot]);
}
void Cmd_Texture_Create(const CCommandBuffer::SCommand_Texture_Create *pCommand)
{
int Oglformat = TexFormatToOpenGLFormat(pCommand->m_Format);
// upload texture
int StoreOglformat = Oglformat;
if(g_Config.m_GfxTextureCompression)
{
StoreOglformat = GL_COMPRESSED_RGBA_ARB;
if(pCommand->m_StoreFormat == CCommandBuffer::TEXFORMAT_RGB)
StoreOglformat = GL_COMPRESSED_RGB_ARB;
else if(Oglformat == CCommandBuffer::TEXFORMAT_ALPHA)
StoreOglformat = GL_COMPRESSED_ALPHA_ARB;
}
else
{
StoreOglformat = TexFormatToOpenGLFormat(pCommand->m_StoreFormat);
}
glGenTextures(1, &m_aTextures[pCommand->m_Slot]);
glBindTexture(GL_TEXTURE_2D, m_aTextures[pCommand->m_Slot]);
if(pCommand->m_Flags&CCommandBuffer::TEXFLAG_NOMIPMAPS)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_2D, 0, StoreOglformat, pCommand->m_Width, pCommand->m_Height, 0, Oglformat, GL_UNSIGNED_BYTE, pCommand->m_pData);
}
else
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
gluBuild2DMipmaps(GL_TEXTURE_2D, StoreOglformat, pCommand->m_Width, pCommand->m_Height, Oglformat, GL_UNSIGNED_BYTE, pCommand->m_pData);
}
mem_free(pCommand->m_pData);
}
bool RunCommand(const CCommandBuffer::SCommand * pBaseCommand)
{
switch(pBaseCommand->m_Cmd)
{
case CCommandBuffer::CMD_TEXTURE_CREATE:
{
Cmd_Texture_Create(static_cast<const CCommandBuffer::SCommand_Texture_Create *>(pBaseCommand));
} break;
case CCommandBuffer::CMD_TEXTURE_DESTROY:
{
Cmd_Texture_Destroy(static_cast<const CCommandBuffer::SCommand_Texture_Destroy *>(pBaseCommand));
} break;
case CCommandBuffer::CMD_TEXTURE_UPDATE:
{
Cmd_Texture_Update(static_cast<const CCommandBuffer::SCommand_Texture_Update *>(pBaseCommand));
} break;
case CCommandBuffer::CMD_CLEAR:
{
const CCommandBuffer::SCommand_Clear *pCommand = (CCommandBuffer::SCommand_Clear *)pBaseCommand;
glClearColor(pCommand->m_Color.r, pCommand->m_Color.g, pCommand->m_Color.b, 0.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
} break;
case CCommandBuffer::CMD_RENDER:
{
const CCommandBuffer::SCommand_Render *pCommand = static_cast<const CCommandBuffer::SCommand_Render *>(pBaseCommand);
SetState(pCommand->m_State);
glVertexPointer(3, GL_FLOAT, sizeof(CCommandBuffer::SVertex), (char*)pCommand->m_pVertices);
glTexCoordPointer(2, GL_FLOAT, sizeof(CCommandBuffer::SVertex), (char*)pCommand->m_pVertices + sizeof(float)*3);
glColorPointer(4, GL_FLOAT, sizeof(CCommandBuffer::SVertex), (char*)pCommand->m_pVertices + sizeof(float)*5);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
switch(pCommand->m_PrimType)
{
case CCommandBuffer::PRIMTYPE_QUADS:
glDrawArrays(GL_QUADS, 0, pCommand->m_PrimCount*4);
break;
case CCommandBuffer::PRIMTYPE_LINES:
glDrawArrays(GL_LINES, 0, pCommand->m_PrimCount*2);
break;
default:
dbg_msg("render", "unknown primtype %d\n", pCommand->m_Cmd);
};
} break;
default:
return false;
break;
}
return true;
}
};
class CCommandProcessorFragment_SDL
{
// SDL stuff
SDL_Surface *m_pScreenSurface;
int TryInit()
{
const SDL_VideoInfo *pInfo = SDL_GetVideoInfo();
SDL_EventState(SDL_MOUSEMOTION, SDL_IGNORE);
// set flags
int Flags = SDL_OPENGL;
if(g_Config.m_DbgResizable)
Flags |= SDL_RESIZABLE;
if(pInfo->hw_available) // ignore_convention
Flags |= SDL_HWSURFACE;
else
Flags |= SDL_SWSURFACE;
if(pInfo->blit_hw) // ignore_convention
Flags |= SDL_HWACCEL;
if(g_Config.m_GfxFullscreen)
Flags |= SDL_FULLSCREEN;
// set gl attributes
if(g_Config.m_GfxFsaaSamples)
{
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, g_Config.m_GfxFsaaSamples);
}
else
{
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 0);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 0);
}
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, g_Config.m_GfxVsync);
// set caption
SDL_WM_SetCaption("Teeworlds", "Teeworlds");
// create window
m_pScreenSurface = SDL_SetVideoMode(g_Config.m_GfxScreenWidth, g_Config.m_GfxScreenHeight, 0, Flags);
if(m_pScreenSurface == NULL)
{
dbg_msg("gfx", "unable to set video mode: %s", SDL_GetError());
return -1;
}
return 0;
}
int InitWindow()
{
if(TryInit() == 0)
return 0;
// try disabling fsaa
while(g_Config.m_GfxFsaaSamples)
{
g_Config.m_GfxFsaaSamples--;
if(g_Config.m_GfxFsaaSamples)
dbg_msg("gfx", "lowering FSAA to %d and trying again", g_Config.m_GfxFsaaSamples);
else
dbg_msg("gfx", "disabling FSAA and trying again");
if(TryInit() == 0)
return 0;
}
// try lowering the resolution
if(g_Config.m_GfxScreenWidth != 640 || g_Config.m_GfxScreenHeight != 480)
{
dbg_msg("gfx", "setting resolution to 640x480 and trying again");
g_Config.m_GfxScreenWidth = 640;
g_Config.m_GfxScreenHeight = 480;
if(TryInit() == 0)
return 0;
}
dbg_msg("gfx", "out of ideas. failed to init graphics");
return -1;
}
int Init()
{
{
int Systems = SDL_INIT_VIDEO;
if(g_Config.m_SndEnable)
Systems |= SDL_INIT_AUDIO;
if(g_Config.m_ClEventthread)
Systems |= SDL_INIT_EVENTTHREAD;
if(SDL_Init(Systems) < 0)
{
dbg_msg("gfx", "unable to init SDL: %s", SDL_GetError());
return -1;
}
}
atexit(SDL_Quit); // ignore_convention
#ifdef CONF_FAMILY_WINDOWS
if(!getenv("SDL_VIDEO_WINDOW_POS") && !getenv("SDL_VIDEO_CENTERED")) // ignore_convention
putenv("SDL_VIDEO_WINDOW_POS=8,27"); // ignore_convention
#endif
if(InitWindow() != 0)
return -1;
SDL_ShowCursor(0);
// set some default settings
glEnable(GL_BLEND);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glAlphaFunc(GL_GREATER, 0);
glEnable(GL_ALPHA_TEST);
glDepthMask(0);
return 0;
}
public:
CCommandProcessorFragment_SDL()
{
m_pScreenSurface = 0x0;
}
bool RunCommand(const CCommandBuffer::SCommand *pBaseCommand)
{
switch(pBaseCommand->m_Cmd)
{
case CCommandBuffer::CMD_NOP:
break;
case CCommandBuffer::CMD_INIT:
{
const CCommandBuffer::SCommand_Init *pCommand = static_cast<const CCommandBuffer::SCommand_Init *>(pBaseCommand);
*pCommand->m_pResult = Init();
} break;
case CCommandBuffer::CMD_SHUTDOWN:
break;
case CCommandBuffer::CMD_SWAP:
{
SDL_GL_SwapBuffers();
} break;
default:
return false;
break;
}
return true;
}
};
class CCommandProcessor_SDL_OpenGL : public ICommandProcessor
{
CCommandProcessorFragment_OpenGL m_OpenGL;
CCommandProcessorFragment_SDL m_SDL;
CCommandProcessorFragment_General m_General;
public:
virtual void RunBuffer(CCommandBuffer *pBuffer)
{
unsigned CmdIndex = 0;
while(1)
{
const CCommandBuffer::SCommand *pBaseCommand = pBuffer->GetCommand(&CmdIndex);
if(pBaseCommand == 0x0)
break;
if(m_OpenGL.RunCommand(pBaseCommand))
continue;
if(m_SDL.RunCommand(pBaseCommand))
continue;
if(m_General.RunCommand(pBaseCommand))
continue;
dbg_msg("graphics", "unknown command %d", pBaseCommand->m_Cmd);
}
}
};
void CCommandProcessorHandler::ThreadFunc(void *pUser)
{
CCommandProcessorHandler *pThis = (CCommandProcessorHandler *)pUser;
while(!pThis->m_Shutdown)
{
pThis->m_Activity.wait();
if(pThis->m_pBuffer)
{
pThis->m_pProcessor->RunBuffer(pThis->m_pBuffer);
sync_barrier();
pThis->m_pBuffer = 0x0;
pThis->m_BufferDone.signal();
}
}
}
CCommandProcessorHandler::CCommandProcessorHandler()
{
m_pBuffer = 0x0;
m_pProcessor = 0x0;
m_pThread = 0x0;
}
void CCommandProcessorHandler::Start(ICommandProcessor *pProcessor)
{
m_Shutdown = false;
m_pProcessor = pProcessor;
m_pThread = thread_create(ThreadFunc, this);
m_BufferDone.signal();
}
void CCommandProcessorHandler::RunBuffer(CCommandBuffer *pBuffer)
{
WaitForIdle();
m_pBuffer = pBuffer;
m_Activity.signal();
}
void CCommandProcessorHandler::WaitForIdle()
{
while(m_pBuffer != 0x0)
m_BufferDone.wait();
}
void CGraphics_Threaded::Flush()
{
if(m_NumVertices == 0)
return;
int NumVerts = m_NumVertices;
m_NumVertices = 0;
CCommandBuffer::SCommand_Render Cmd;
Cmd.m_State = m_State;
if(m_Drawing == DRAWING_QUADS)
{
Cmd.m_PrimType = CCommandBuffer::PRIMTYPE_QUADS;
Cmd.m_PrimCount = NumVerts/4;
}
else if(m_Drawing == DRAWING_LINES)
{
Cmd.m_PrimType = CCommandBuffer::PRIMTYPE_LINES;
Cmd.m_PrimCount = NumVerts/2;
}
else
return;
Cmd.m_pVertices = (CCommandBuffer::SVertex *)m_pCommandBuffer->AllocData(sizeof(CCommandBuffer::SVertex)*NumVerts);
if(Cmd.m_pVertices == 0x0)
return;
mem_copy(Cmd.m_pVertices, m_aVertices, sizeof(CCommandBuffer::SVertex)*NumVerts);
m_pCommandBuffer->AddCommand(Cmd);
}
void CGraphics_Threaded::AddVertices(int Count)
{
m_NumVertices += Count;
if((m_NumVertices + Count) >= MAX_VERTICES)
Flush();
}
void CGraphics_Threaded::Rotate4(const CCommandBuffer::SPoint &rCenter, CCommandBuffer::SVertex *pPoints)
{
float c = cosf(m_Rotation);
float s = sinf(m_Rotation);
float x, y;
int i;
for(i = 0; i < 4; i++)
{
x = pPoints[i].m_Pos.x - rCenter.x;
y = pPoints[i].m_Pos.y - rCenter.y;
pPoints[i].m_Pos.x = x * c - y * s + rCenter.x;
pPoints[i].m_Pos.y = x * s + y * c + rCenter.y;
}
}
unsigned char CGraphics_Threaded::Sample(int w, int h, const unsigned char *pData, int u, int v, int Offset, int ScaleW, int ScaleH, int Bpp)
{
int Value = 0;
for(int x = 0; x < ScaleW; x++)
for(int y = 0; y < ScaleH; y++)
Value += pData[((v+y)*w+(u+x))*Bpp+Offset];
return Value/(ScaleW*ScaleH);
}
unsigned char *CGraphics_Threaded::Rescale(int Width, int Height, int NewWidth, int NewHeight, int Format, const unsigned char *pData)
{
unsigned char *pTmpData;
int ScaleW = Width/NewWidth;
int ScaleH = Height/NewHeight;
int Bpp = 3;
if(Format == CImageInfo::FORMAT_RGBA)
Bpp = 4;
pTmpData = (unsigned char *)mem_alloc(NewWidth*NewHeight*Bpp, 1);
int c = 0;
for(int y = 0; y < NewHeight; y++)
for(int x = 0; x < NewWidth; x++, c++)
{
pTmpData[c*Bpp] = Sample(Width, Height, pData, x*ScaleW, y*ScaleH, 0, ScaleW, ScaleH, Bpp);
pTmpData[c*Bpp+1] = Sample(Width, Height, pData, x*ScaleW, y*ScaleH, 1, ScaleW, ScaleH, Bpp);
pTmpData[c*Bpp+2] = Sample(Width, Height, pData, x*ScaleW, y*ScaleH, 2, ScaleW, ScaleH, Bpp);
if(Bpp == 4)
pTmpData[c*Bpp+3] = Sample(Width, Height, pData, x*ScaleW, y*ScaleH, 3, ScaleW, ScaleH, Bpp);
}
return pTmpData;
}
CGraphics_Threaded::CGraphics_Threaded()
{
m_State.m_ScreenTL.x = 0;
m_State.m_ScreenTL.y = 0;
m_State.m_ScreenBR.x = 0;
m_State.m_ScreenBR.y = 0;
m_State.m_ClipEnable = false;
m_State.m_ClipX = 0;
m_State.m_ClipY = 0;
m_State.m_ClipW = 0;
m_State.m_ClipH = 0;
m_State.m_Texture = -1;
m_State.m_BlendMode = CCommandBuffer::BLEND_NONE;
m_CurrentCommandBuffer = 0;
m_pCommandBuffer = 0x0;
m_apCommandBuffers[0] = 0x0;
m_apCommandBuffers[1] = 0x0;
m_NumVertices = 0;
m_ScreenWidth = -1;
m_ScreenHeight = -1;
m_Rotation = 0;
m_Drawing = 0;
m_InvalidTexture = 0;
m_TextureMemoryUsage = 0;
m_RenderEnable = true;
m_DoScreenshot = false;
}
void CGraphics_Threaded::ClipEnable(int x, int y, int w, int h)
{
if(x < 0)
w += x;
if(y < 0)
h += y;
x = clamp(x, 0, ScreenWidth());
y = clamp(y, 0, ScreenHeight());
w = clamp(w, 0, ScreenWidth()-x);
h = clamp(h, 0, ScreenHeight()-y);
m_State.m_ClipEnable = true;
m_State.m_ClipX = x;
m_State.m_ClipY = ScreenHeight()-(y+h);
m_State.m_ClipW = w;
m_State.m_ClipH = h;
}
void CGraphics_Threaded::ClipDisable()
{
m_State.m_ClipEnable = false;
}
void CGraphics_Threaded::BlendNone()
{
m_State.m_BlendMode = CCommandBuffer::BLEND_NONE;
}
void CGraphics_Threaded::BlendNormal()
{
m_State.m_BlendMode = CCommandBuffer::BLEND_ALPHA;
}
void CGraphics_Threaded::BlendAdditive()
{
m_State.m_BlendMode = CCommandBuffer::BLEND_ADDITIVE;
}
int CGraphics_Threaded::MemoryUsage() const
{
return m_TextureMemoryUsage;
}
void CGraphics_Threaded::MapScreen(float TopLeftX, float TopLeftY, float BottomRightX, float BottomRightY)
{
m_State.m_ScreenTL.x = TopLeftX;
m_State.m_ScreenTL.y = TopLeftY;
m_State.m_ScreenBR.x = BottomRightX;
m_State.m_ScreenBR.y = BottomRightY;
}
void CGraphics_Threaded::GetScreen(float *pTopLeftX, float *pTopLeftY, float *pBottomRightX, float *pBottomRightY)
{
*pTopLeftX = m_State.m_ScreenTL.x;
*pTopLeftY = m_State.m_ScreenTL.y;
*pBottomRightX = m_State.m_ScreenBR.x;
*pBottomRightY = m_State.m_ScreenBR.y;
}
void CGraphics_Threaded::LinesBegin()
{
dbg_assert(m_Drawing == 0, "called Graphics()->LinesBegin twice");
m_Drawing = DRAWING_LINES;
SetColor(1,1,1,1);
}
void CGraphics_Threaded::LinesEnd()
{
dbg_assert(m_Drawing == DRAWING_LINES, "called Graphics()->LinesEnd without begin");
Flush();
m_Drawing = 0;
}
void CGraphics_Threaded::LinesDraw(const CLineItem *pArray, int Num)
{
dbg_assert(m_Drawing == DRAWING_LINES, "called Graphics()->LinesDraw without begin");
for(int i = 0; i < Num; ++i)
{
m_aVertices[m_NumVertices + 2*i].m_Pos.x = pArray[i].m_X0;
m_aVertices[m_NumVertices + 2*i].m_Pos.y = pArray[i].m_Y0;
m_aVertices[m_NumVertices + 2*i].m_Tex = m_aTexture[0];
m_aVertices[m_NumVertices + 2*i].m_Color = m_aColor[0];
m_aVertices[m_NumVertices + 2*i + 1].m_Pos.x = pArray[i].m_X1;
m_aVertices[m_NumVertices + 2*i + 1].m_Pos.y = pArray[i].m_Y1;
m_aVertices[m_NumVertices + 2*i + 1].m_Tex = m_aTexture[1];
m_aVertices[m_NumVertices + 2*i + 1].m_Color = m_aColor[1];
}
AddVertices(2*Num);
}
int CGraphics_Threaded::UnloadTexture(int Index)
{
if(Index == m_InvalidTexture)
return 0;
if(Index < 0)
return 0;
CCommandBuffer::SCommand_Texture_Destroy Cmd;
Cmd.m_Slot = Index;
m_pCommandBuffer->AddCommand(Cmd);
m_aTextures[Index].m_Next = m_FirstFreeTexture;
m_TextureMemoryUsage -= m_aTextures[Index].m_MemSize;
m_FirstFreeTexture = Index;
return 0;
}
static int ImageFormatToTexFormat(int Format)
{
if(Format == CImageInfo::FORMAT_RGB) return CCommandBuffer::TEXFORMAT_RGB;
if(Format == CImageInfo::FORMAT_RGBA) return CCommandBuffer::TEXFORMAT_RGBA;
if(Format == CImageInfo::FORMAT_ALPHA) return CCommandBuffer::TEXFORMAT_ALPHA;
return CCommandBuffer::TEXFORMAT_RGBA;
}
int CGraphics_Threaded::LoadTextureRawSub(int TextureID, int x, int y, int Width, int Height, int Format, const void *pData)
{
CCommandBuffer::SCommand_Texture_Update Cmd;
Cmd.m_Slot = TextureID;
Cmd.m_X = x;
Cmd.m_Y = y;
Cmd.m_Width = Width;
Cmd.m_Height = Height;
Cmd.m_Format = ImageFormatToTexFormat(Format);
// calculate memory usage
int PixelSize = 4;
if(Format == CImageInfo::FORMAT_RGB)
PixelSize = 3;
else if(Format == CImageInfo::FORMAT_ALPHA)
PixelSize = 1;
int MemSize = Width*Height*PixelSize;
// copy texture data
void *pTmpData = mem_alloc(MemSize, sizeof(void*));
mem_copy(pTmpData, pData, MemSize);
Cmd.m_pData = pTmpData;
//
m_pCommandBuffer->AddCommand(Cmd);
return 0;
}
int CGraphics_Threaded::LoadTextureRaw(int Width, int Height, int Format, const void *pData, int StoreFormat, int Flags)
{
// don't waste memory on texture if we are stress testing
if(g_Config.m_DbgStress)
return m_InvalidTexture;
// grab texture
int Tex = m_FirstFreeTexture;
m_FirstFreeTexture = m_aTextures[Tex].m_Next;
m_aTextures[Tex].m_Next = -1;
CCommandBuffer::SCommand_Texture_Create Cmd;
Cmd.m_Slot = Tex;
Cmd.m_Width = Width;
Cmd.m_Height = Height;
Cmd.m_Format = ImageFormatToTexFormat(Format);
Cmd.m_StoreFormat = ImageFormatToTexFormat(StoreFormat);
// flags
Cmd.m_Flags = 0;
if(Flags&IGraphics::TEXLOAD_NOMIPMAPS)
Cmd.m_Flags |= CCommandBuffer::TEXFLAG_NOMIPMAPS;
// calculate memory usage
int PixelSize = 4;
if(Format == CImageInfo::FORMAT_RGB)
PixelSize = 3;
else if(Format == CImageInfo::FORMAT_ALPHA)
PixelSize = 1;
int MemSize = Width*Height*PixelSize;
// copy texture data
void *pTmpData = mem_alloc(MemSize, sizeof(void*));
mem_copy(pTmpData, pData, MemSize);
Cmd.m_pData = pTmpData;
//
m_pCommandBuffer->AddCommand(Cmd);
// calculate memory usage
int MemUsage = MemSize;
while(Width > 2 && Height > 2)
{
Width>>=1;
Height>>=1;
MemUsage += Width*Height*PixelSize;
}
m_TextureMemoryUsage += MemUsage;
//mem_free(pTmpData);
return Tex;
}
// simple uncompressed RGBA loaders
int CGraphics_Threaded::LoadTexture(const char *pFilename, int StorageType, int StoreFormat, int Flags)
{
int l = str_length(pFilename);
int ID;
CImageInfo Img;
if(l < 3)
return -1;
if(LoadPNG(&Img, pFilename, StorageType))
{
if (StoreFormat == CImageInfo::FORMAT_AUTO)
StoreFormat = Img.m_Format;
ID = LoadTextureRaw(Img.m_Width, Img.m_Height, Img.m_Format, Img.m_pData, StoreFormat, Flags);
mem_free(Img.m_pData);
if(ID != m_InvalidTexture && g_Config.m_Debug)
dbg_msg("graphics/texture", "loaded %s", pFilename);
return ID;
}
return m_InvalidTexture;
}
int CGraphics_Threaded::LoadPNG(CImageInfo *pImg, const char *pFilename, int StorageType)
{
char aCompleteFilename[512];
unsigned char *pBuffer;
png_t Png; // ignore_convention
// open file for reading
png_init(0,0); // ignore_convention
IOHANDLE File = m_pStorage->OpenFile(pFilename, IOFLAG_READ, StorageType, aCompleteFilename, sizeof(aCompleteFilename));
if(File)
io_close(File);
else
{
dbg_msg("game/png", "failed to open file. filename='%s'", pFilename);
return 0;
}
int Error = png_open_file(&Png, aCompleteFilename); // ignore_convention
if(Error != PNG_NO_ERROR)
{
dbg_msg("game/png", "failed to open file. filename='%s'", aCompleteFilename);
if(Error != PNG_FILE_ERROR)
png_close_file(&Png); // ignore_convention
return 0;
}
if(Png.depth != 8 || (Png.color_type != PNG_TRUECOLOR && Png.color_type != PNG_TRUECOLOR_ALPHA)) // ignore_convention
{
dbg_msg("game/png", "invalid format. filename='%s'", aCompleteFilename);
png_close_file(&Png); // ignore_convention
return 0;
}
pBuffer = (unsigned char *)mem_alloc(Png.width * Png.height * Png.bpp, 1); // ignore_convention
png_get_data(&Png, pBuffer); // ignore_convention
png_close_file(&Png); // ignore_convention
pImg->m_Width = Png.width; // ignore_convention
pImg->m_Height = Png.height; // ignore_convention
if(Png.color_type == PNG_TRUECOLOR) // ignore_convention
pImg->m_Format = CImageInfo::FORMAT_RGB;
else if(Png.color_type == PNG_TRUECOLOR_ALPHA) // ignore_convention
pImg->m_Format = CImageInfo::FORMAT_RGBA;
pImg->m_pData = pBuffer;
return 1;
}
void CGraphics_Threaded::ScreenshotDirect(const char *pFilename)
{
// TODO: screenshot support
return;
/*
// fetch image data
int y;
int w = m_ScreenWidth;
int h = m_ScreenHeight;
unsigned char *pPixelData = (unsigned char *)mem_alloc(w*(h+1)*3, 1);
unsigned char *pTempRow = pPixelData+w*h*3;
GLint Alignment;
glGetIntegerv(GL_PACK_ALIGNMENT, &Alignment);
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glReadPixels(0,0, w, h, GL_RGB, GL_UNSIGNED_BYTE, pPixelData);
glPixelStorei(GL_PACK_ALIGNMENT, Alignment);
// flip the pixel because opengl works from bottom left corner
for(y = 0; y < h/2; y++)
{
mem_copy(pTempRow, pPixelData+y*w*3, w*3);
mem_copy(pPixelData+y*w*3, pPixelData+(h-y-1)*w*3, w*3);
mem_copy(pPixelData+(h-y-1)*w*3, pTempRow,w*3);
}
// find filename
{
char aWholePath[1024];
png_t Png; // ignore_convention
IOHANDLE File = m_pStorage->OpenFile(pFilename, IOFLAG_WRITE, IStorage::TYPE_SAVE, aWholePath, sizeof(aWholePath));
if(File)
io_close(File);
// save png
char aBuf[256];
str_format(aBuf, sizeof(aBuf), "saved screenshot to '%s'", aWholePath);
m_pConsole->Print(IConsole::OUTPUT_LEVEL_STANDARD, "client", aBuf);
png_open_file_write(&Png, aWholePath); // ignore_convention
png_set_data(&Png, w, h, 8, PNG_TRUECOLOR, (unsigned char *)pPixelData); // ignore_convention
png_close_file(&Png); // ignore_convention
}
// clean up
mem_free(pPixelData);
*/
}
void CGraphics_Threaded::TextureSet(int TextureID)
{
dbg_assert(m_Drawing == 0, "called Graphics()->TextureSet within begin");
m_State.m_Texture = TextureID;
}
void CGraphics_Threaded::Clear(float r, float g, float b)
{
CCommandBuffer::SCommand_Clear Cmd;
Cmd.m_Color.r = r;
Cmd.m_Color.g = g;
Cmd.m_Color.b = b;
Cmd.m_Color.a = 0;
m_pCommandBuffer->AddCommand(Cmd);
}
void CGraphics_Threaded::QuadsBegin()
{
dbg_assert(m_Drawing == 0, "called Graphics()->QuadsBegin twice");
m_Drawing = DRAWING_QUADS;
QuadsSetSubset(0,0,1,1);
QuadsSetRotation(0);
SetColor(1,1,1,1);
}
void CGraphics_Threaded::QuadsEnd()
{
dbg_assert(m_Drawing == DRAWING_QUADS, "called Graphics()->QuadsEnd without begin");
Flush();
m_Drawing = 0;
}
void CGraphics_Threaded::QuadsSetRotation(float Angle)
{
dbg_assert(m_Drawing == DRAWING_QUADS, "called Graphics()->QuadsSetRotation without begin");
m_Rotation = Angle;
}
void CGraphics_Threaded::SetColorVertex(const CColorVertex *pArray, int Num)
{
dbg_assert(m_Drawing != 0, "called Graphics()->SetColorVertex without begin");
for(int i = 0; i < Num; ++i)
{
m_aColor[pArray[i].m_Index].r = pArray[i].m_R;
m_aColor[pArray[i].m_Index].g = pArray[i].m_G;
m_aColor[pArray[i].m_Index].b = pArray[i].m_B;
m_aColor[pArray[i].m_Index].a = pArray[i].m_A;
}
}
void CGraphics_Threaded::SetColor(float r, float g, float b, float a)
{
dbg_assert(m_Drawing != 0, "called Graphics()->SetColor without begin");
CColorVertex Array[4] = {
CColorVertex(0, r, g, b, a),
CColorVertex(1, r, g, b, a),
CColorVertex(2, r, g, b, a),
CColorVertex(3, r, g, b, a)};
SetColorVertex(Array, 4);
}
void CGraphics_Threaded::QuadsSetSubset(float TlU, float TlV, float BrU, float BrV)
{
dbg_assert(m_Drawing == DRAWING_QUADS, "called Graphics()->QuadsSetSubset without begin");
m_aTexture[0].u = TlU; m_aTexture[1].u = BrU;
m_aTexture[0].v = TlV; m_aTexture[1].v = TlV;
m_aTexture[3].u = TlU; m_aTexture[2].u = BrU;
m_aTexture[3].v = BrV; m_aTexture[2].v = BrV;
}
void CGraphics_Threaded::QuadsSetSubsetFree(
float x0, float y0, float x1, float y1,
float x2, float y2, float x3, float y3)
{
m_aTexture[0].u = x0; m_aTexture[0].v = y0;
m_aTexture[1].u = x1; m_aTexture[1].v = y1;
m_aTexture[2].u = x2; m_aTexture[2].v = y2;
m_aTexture[3].u = x3; m_aTexture[3].v = y3;
}
void CGraphics_Threaded::QuadsDraw(CQuadItem *pArray, int Num)
{
for(int i = 0; i < Num; ++i)
{
pArray[i].m_X -= pArray[i].m_Width/2;
pArray[i].m_Y -= pArray[i].m_Height/2;
}
QuadsDrawTL(pArray, Num);
}
void CGraphics_Threaded::QuadsDrawTL(const CQuadItem *pArray, int Num)
{
CCommandBuffer::SPoint Center;
Center.z = 0;
dbg_assert(m_Drawing == DRAWING_QUADS, "called Graphics()->QuadsDrawTL without begin");
for(int i = 0; i < Num; ++i)
{
m_aVertices[m_NumVertices + 4*i].m_Pos.x = pArray[i].m_X;
m_aVertices[m_NumVertices + 4*i].m_Pos.y = pArray[i].m_Y;
m_aVertices[m_NumVertices + 4*i].m_Tex = m_aTexture[0];
m_aVertices[m_NumVertices + 4*i].m_Color = m_aColor[0];
m_aVertices[m_NumVertices + 4*i + 1].m_Pos.x = pArray[i].m_X + pArray[i].m_Width;
m_aVertices[m_NumVertices + 4*i + 1].m_Pos.y = pArray[i].m_Y;
m_aVertices[m_NumVertices + 4*i + 1].m_Tex = m_aTexture[1];
m_aVertices[m_NumVertices + 4*i + 1].m_Color = m_aColor[1];
m_aVertices[m_NumVertices + 4*i + 2].m_Pos.x = pArray[i].m_X + pArray[i].m_Width;
m_aVertices[m_NumVertices + 4*i + 2].m_Pos.y = pArray[i].m_Y + pArray[i].m_Height;
m_aVertices[m_NumVertices + 4*i + 2].m_Tex = m_aTexture[2];
m_aVertices[m_NumVertices + 4*i + 2].m_Color = m_aColor[2];
m_aVertices[m_NumVertices + 4*i + 3].m_Pos.x = pArray[i].m_X;
m_aVertices[m_NumVertices + 4*i + 3].m_Pos.y = pArray[i].m_Y + pArray[i].m_Height;
m_aVertices[m_NumVertices + 4*i + 3].m_Tex = m_aTexture[3];
m_aVertices[m_NumVertices + 4*i + 3].m_Color = m_aColor[3];
if(m_Rotation != 0)
{
Center.x = pArray[i].m_X + pArray[i].m_Width/2;
Center.y = pArray[i].m_Y + pArray[i].m_Height/2;
Rotate4(Center, &m_aVertices[m_NumVertices + 4*i]);
}
}
AddVertices(4*Num);
}
void CGraphics_Threaded::QuadsDrawFreeform(const CFreeformItem *pArray, int Num)
{
dbg_assert(m_Drawing == DRAWING_QUADS, "called Graphics()->QuadsDrawFreeform without begin");
for(int i = 0; i < Num; ++i)
{
m_aVertices[m_NumVertices + 4*i].m_Pos.x = pArray[i].m_X0;
m_aVertices[m_NumVertices + 4*i].m_Pos.y = pArray[i].m_Y0;
m_aVertices[m_NumVertices + 4*i].m_Tex = m_aTexture[0];
m_aVertices[m_NumVertices + 4*i].m_Color = m_aColor[0];
m_aVertices[m_NumVertices + 4*i + 1].m_Pos.x = pArray[i].m_X1;
m_aVertices[m_NumVertices + 4*i + 1].m_Pos.y = pArray[i].m_Y1;
m_aVertices[m_NumVertices + 4*i + 1].m_Tex = m_aTexture[1];
m_aVertices[m_NumVertices + 4*i + 1].m_Color = m_aColor[1];
m_aVertices[m_NumVertices + 4*i + 2].m_Pos.x = pArray[i].m_X3;
m_aVertices[m_NumVertices + 4*i + 2].m_Pos.y = pArray[i].m_Y3;
m_aVertices[m_NumVertices + 4*i + 2].m_Tex = m_aTexture[3];
m_aVertices[m_NumVertices + 4*i + 2].m_Color = m_aColor[3];
m_aVertices[m_NumVertices + 4*i + 3].m_Pos.x = pArray[i].m_X2;
m_aVertices[m_NumVertices + 4*i + 3].m_Pos.y = pArray[i].m_Y2;
m_aVertices[m_NumVertices + 4*i + 3].m_Tex = m_aTexture[2];
m_aVertices[m_NumVertices + 4*i + 3].m_Color = m_aColor[2];
}
AddVertices(4*Num);
}
void CGraphics_Threaded::QuadsText(float x, float y, float Size, float r, float g, float b, float a, const char *pText)
{
float StartX = x;
QuadsBegin();
SetColor(r,g,b,a);
while(*pText)
{
char c = *pText;
pText++;
if(c == '\n')
{
x = StartX;
y += Size;
}
else
{
QuadsSetSubset(
(c%16)/16.0f,
(c/16)/16.0f,
(c%16)/16.0f+1.0f/16.0f,
(c/16)/16.0f+1.0f/16.0f);
CQuadItem QuadItem(x, y, Size, Size);
QuadsDrawTL(&QuadItem, 1);
x += Size/2;
}
}
QuadsEnd();
}
bool CGraphics_Threaded::Init()
{
// fetch pointers
m_pStorage = Kernel()->RequestInterface<IStorage>();
m_pConsole = Kernel()->RequestInterface<IConsole>();
// Set all z to -5.0f
for(int i = 0; i < MAX_VERTICES; i++)
m_aVertices[i].m_Pos.z = -5.0f;
// init textures
m_FirstFreeTexture = 0;
for(int i = 0; i < MAX_TEXTURES; i++)
m_aTextures[i].m_Next = i+1;
m_aTextures[MAX_TEXTURES-1].m_Next = -1;
// start the command processor
ICommandProcessor *pProcessor = new CCommandProcessor_SDL_OpenGL;
m_Handler.Start(pProcessor);
// create command buffers
m_apCommandBuffers[0] = new CCommandBuffer(1024*512, 1024*1024);
m_apCommandBuffers[1] = new CCommandBuffer(1024*512, 1024*1024);
m_pCommandBuffer = m_apCommandBuffers[0];
// issue init command
m_pCommandBuffer->Reset();
volatile int Result;
CCommandBuffer::SCommand_Init Cmd;
Cmd.m_pResult = &Result;
m_pCommandBuffer->AddCommand(Cmd);
m_Handler.RunBuffer(m_pCommandBuffer);
m_Handler.WaitForIdle();
if(Result == 0)
{
// fetch final resolusion
m_ScreenWidth = g_Config.m_GfxScreenWidth;
m_ScreenHeight = g_Config.m_GfxScreenHeight;
// create null texture, will get id=0
static const unsigned char aNullTextureData[] = {
0xff,0x00,0x00,0xff, 0xff,0x00,0x00,0xff, 0x00,0xff,0x00,0xff, 0x00,0xff,0x00,0xff,
0xff,0x00,0x00,0xff, 0xff,0x00,0x00,0xff, 0x00,0xff,0x00,0xff, 0x00,0xff,0x00,0xff,
0x00,0x00,0xff,0xff, 0x00,0x00,0xff,0xff, 0xff,0xff,0x00,0xff, 0xff,0xff,0x00,0xff,
0x00,0x00,0xff,0xff, 0x00,0x00,0xff,0xff, 0xff,0xff,0x00,0xff, 0xff,0xff,0x00,0xff,
};
m_InvalidTexture = LoadTextureRaw(4,4,CImageInfo::FORMAT_RGBA,aNullTextureData,CImageInfo::FORMAT_RGBA,TEXLOAD_NORESAMPLE);
}
return Result;
}
void CGraphics_Threaded::Shutdown()
{
// TODO: SDL, is this correct?
SDL_Quit();
}
void CGraphics_Threaded::Minimize()
{
SDL_WM_IconifyWindow();
}
void CGraphics_Threaded::Maximize()
{
// TODO: SDL
}
int CGraphics_Threaded::WindowActive()
{
return SDL_GetAppState()&SDL_APPINPUTFOCUS;
}
int CGraphics_Threaded::WindowOpen()
{
return SDL_GetAppState()&SDL_APPACTIVE;
}
void CGraphics_Threaded::TakeScreenshot(const char *pFilename)
{
// TODO: screenshot support
return;
/*
char aDate[20];
str_timestamp(aDate, sizeof(aDate));
str_format(m_aScreenshotName, sizeof(m_aScreenshotName), "screenshots/%s_%s.png", pFilename?pFilename:"screenshot", aDate);
m_DoScreenshot = true;
*/
}
void CGraphics_Threaded::Swap()
{
// TODO: screenshot support
/*
if(m_DoScreenshot)
{
ScreenshotDirect(m_aScreenshotName);
m_DoScreenshot = false;
}*/
// add swap command
CCommandBuffer::SCommand_Swap Cmd;
m_pCommandBuffer->AddCommand(Cmd);
m_Handler.RunBuffer(m_pCommandBuffer);
// swap buffer
m_CurrentCommandBuffer ^= 1;
m_pCommandBuffer = m_apCommandBuffers[m_CurrentCommandBuffer];
m_pCommandBuffer->Reset();
}
// syncronization
void CGraphics_Threaded::InsertSignal(semaphore *pSemaphore)
{
CCommandBuffer::SCommand_Signal Cmd;
Cmd.m_pSemaphore = pSemaphore;
m_pCommandBuffer->AddCommand(Cmd);
}
bool CGraphics_Threaded::IsIdle()
{
return m_Handler.IsIdle();
}
void CGraphics_Threaded::WaitForIdle()
{
m_Handler.WaitForIdle();
}
int CGraphics_Threaded::GetVideoModes(CVideoMode *pModes, int MaxModes)
{
// TODO: fix support for video modes, using fake modes for now
//int NumModes = sizeof(g_aFakeModes)/sizeof(CVideoMode);
//SDL_Rect **ppModes;
//if(g_Config.m_GfxDisplayAllModes)
{
int Count = sizeof(g_aFakeModes)/sizeof(CVideoMode);
mem_copy(pModes, g_aFakeModes, sizeof(g_aFakeModes));
if(MaxModes < Count)
Count = MaxModes;
return Count;
}
// TODO: fix this code on osx or windows
/*
ppModes = SDL_ListModes(NULL, SDL_OPENGL|SDL_GL_DOUBLEBUFFER|SDL_FULLSCREEN);
if(ppModes == NULL)
{
// no modes
NumModes = 0;
}
else if(ppModes == (SDL_Rect**)-1)
{
// all modes
}
else
{
NumModes = 0;
for(int i = 0; ppModes[i]; ++i)
{
if(NumModes == MaxModes)
break;
pModes[NumModes].m_Width = ppModes[i]->w;
pModes[NumModes].m_Height = ppModes[i]->h;
pModes[NumModes].m_Red = 8;
pModes[NumModes].m_Green = 8;
pModes[NumModes].m_Blue = 8;
NumModes++;
}
}
return NumModes;*/
}
extern IEngineGraphics *CreateEngineGraphicsThreaded() { return new CGraphics_Threaded(); }
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