diff options
Diffstat (limited to 'smelt/glfw_m/gfx_glfw.cpp')
| -rw-r--r-- | smelt/glfw_m/gfx_glfw.cpp | 1045 |
1 files changed, 1045 insertions, 0 deletions
diff --git a/smelt/glfw_m/gfx_glfw.cpp b/smelt/glfw_m/gfx_glfw.cpp new file mode 100644 index 0000000..ebd24bf --- /dev/null +++ b/smelt/glfw_m/gfx_glfw.cpp @@ -0,0 +1,1045 @@ +// -*- C++ -*- +/* + * Simple MultimEdia LiTerator(SMELT) + * by Chris Xiong 2015 + * GFX implementation based on GLFW/OpenGL 3.2+ + * + * WARNING: This library is in development and interfaces would be very + * unstable. + * + */ +#include "smelt_internal.hpp" +#include "CxImage/ximage.h" +#include "smmath_priv.hpp" +#define dbg printf("%d: 0x%X\n",__LINE__,glGetError()) +static const char* GFX_GLFW_SRCFN="smelt/glfw_m/gfx_glfw.cpp"; +static const char* fixedfunc_pipeline_vsh= + "#version 330 core\n" + "layout (location=0) in vec3 vp;" + "layout (location=1) in vec4 vc;" + "layout (location=2) in vec2 vtc;" + "out vec4 fc;" + "out vec2 ftc;" + "uniform mat4 mmodv;" + "uniform mat4 mproj;" + "void main(){" + "gl_Position=mproj*mmodv*vec4(vp,1.0f);" + "ftc=vec2(vtc.x,1.0f-vtc.y);"//do flipping at a lower level + "fc=vc;" + "}" +; +static const char* fixedfunc_pipeline_fsh= + "#version 330 core\n" + "in vec4 fc;" + "in vec2 ftc;" + "out vec4 color;" + "uniform sampler2D tex;" + "void main(){" + "color=fc*texture(tex,ftc);" + "if(color.a<1./256.)discard;"//alpha testing + "}" +; +struct glTexture +{ + GLuint name,rw,rh,dw,dh; + const char *fn; + DWORD *px,*locpx; + bool isTarget,lost,roloc; + GLint locx,locy,locw,loch; +}; +bool SMELT_IMPL::smRenderBegin2D(bool ztest,SMTRG trg) +{ + TRenderTargetList *targ=(TRenderTargetList*)trg; + if(vertexArray) + {smLog("%s:" SLINE ": Last frame not closed.\n",GFX_GLFW_SRCFN);return false;} + glBindFramebuffer(GL_FRAMEBUFFER,(targ)?targ->frame:0); + glDepthFunc(GL_GEQUAL); + ztest?glEnable(GL_DEPTH_TEST):glDisable(GL_DEPTH_TEST); + zbufenabled=ztest; + if(targ) + { + glScissor(0,0,targ->w,targ->h); + glViewport(0,0,targ->w,targ->h); + configProjectionMatrix2D(targ->w,targ->h); + } + else + { + glScissor(0,0,scrw,scrh); + glViewport(0,0,scrw,scrh); + configProjectionMatrix2D(scrw,scrh); + } + sm2DCamera5f3v(NULL,NULL,NULL); + curTarget=targ;tdmode=0; + vertexArray=vertexBuf; + return true; +} +bool SMELT_IMPL::smRenderBegin3D(float fov,bool ztest,SMTRG trg) +{ + TRenderTargetList *targ=(TRenderTargetList*)trg; + if(vertexArray) + {smLog("%s:" SLINE ": Last frame not closed.\n",GFX_GLFW_SRCFN);return false;} + glBindFramebuffer(GL_FRAMEBUFFER,(targ)?targ->frame:0); + glDepthFunc(GL_LESS); + ztest?glEnable(GL_DEPTH_TEST):glDisable(GL_DEPTH_TEST); + zbufenabled=ztest; + if(targ) + { + glScissor(0,0,targ->w,targ->h); + glViewport(0,0,targ->w,targ->h); + configProjectionMatrix3D(targ->w,targ->h,fov); + } + else + { + glScissor(0,0,scrw,scrh); + glViewport(0,0,scrw,scrh); + configProjectionMatrix3D(scrw,scrh,fov); + } + sm3DCamera6f2v(NULL,NULL); + curTarget=targ;tdmode=1; + vertexArray=vertexBuf; + return true; +} +bool SMELT_IMPL::smRenderEnd() +{ + batchOGL(true); + if(curTarget&&curTarget->ms) + { + glTexture *pTex=(glTexture*)curTarget->tex; + if(pTex&&pTex->lost) + configTexture(pTex,pTex->rw,pTex->rh,pTex->px); + int w=curTarget->w,h=curTarget->h; + glFinish(); + DWORD *px=new DWORD[w*h]; + glBindFramebuffer(GL_READ_FRAMEBUFFER,curTarget->frame); + glBindFramebuffer(GL_DRAW_FRAMEBUFFER,curTarget->sframe); + glBlitFramebuffer(0,0,w,h,0,0,w,h,GL_COLOR_BUFFER_BIT,GL_NEAREST); + glBindFramebuffer(GL_FRAMEBUFFER,curTarget->sframe); + glReadPixels(0,0,w,h,GL_RGBA,GL_UNSIGNED_BYTE,px); + glBindTexture(GL_TEXTURE_2D,pTex->name); + glTexSubImage2D(GL_TEXTURE_2D,0,0,0,w,h,GL_RGBA,GL_UNSIGNED_BYTE,px); + glBindTexture(GL_TEXTURE_2D,primTex?(((glTexture*)primTex)->name):0); + delete[] px; + } + if(!curTarget)glfwSwapBuffers((GLFWwindow*)hwnd); + return true; +} +void SMELT_IMPL::smClrscr(DWORD color,bool clearcol,bool cleardep) +{ + GLfloat a=(GLfloat)(GETA(color))/255.f; + GLfloat r=(GLfloat)(GETR(color))/255.f; + GLfloat g=(GLfloat)(GETG(color))/255.f; + GLfloat b=(GLfloat)(GETB(color))/255.f; + if(clearcol) + glClearColor(r,g,b,a); + if(tdmode)glClearDepth(1); + else if(zbufenabled)glClearDepth(0); + glClear((clearcol?GL_COLOR_BUFFER_BIT:0)|(((zbufenabled||tdmode)&&cleardep)?GL_DEPTH_BUFFER_BIT:0)); +} +void SMELT_IMPL::sm3DCamera6f2v(float *pos,float *rot) +{ + batchOGL(); + smMatrix Mmodv; + Mmodv.loadIdentity(); + if(pos&&rot) + { + Mmodv.rotate(smMath::deg2rad(-rot[0]),1,0,0); + Mmodv.rotate(smMath::deg2rad(-rot[1]),0,1,0); + Mmodv.rotate(smMath::deg2rad(-rot[2]),0,0,1); + Mmodv.translate(-pos[0],-pos[1],-pos[2]); + } + memcpy(mmodv,Mmodv.m,sizeof(mmodv)); + glUniformMatrix4fv(loc_mmodv,1,0,mmodv); +} +void SMELT_IMPL::smMultViewMatrix(float *mat) +{ + smMatrix Mmodv(mmodv); + Mmodv=Mmodv*smMatrix(mat); + memcpy(mmodv,Mmodv.m,sizeof(mmodv)); +} +void SMELT_IMPL::sm2DCamera5f3v(float *pos,float *dpos,float *rot) +{ + batchOGL(); + smMatrix Mmodv; + Mmodv.loadIdentity(); + if(pos&&dpos&&rot) + { + Mmodv.translate(-pos[0],-pos[1],.0f); + Mmodv.rotate(*rot,.0f,.0f,1.0f); + Mmodv.translate(pos[0]+dpos[0],pos[1]+dpos[1],.0f); + } + memcpy(mmodv,Mmodv.m,sizeof(mmodv)); + glUniformMatrix4fv(loc_mmodv,1,0,mmodv); +} +void SMELT_IMPL::smRenderLinefd(float x1,float y1,float z1,float x2,float y2,float z2,DWORD color) +{ + if(vertexArray) + { + if(primType!=PRIM_LINES||primcnt>=VERTEX_BUFFER_SIZE/PRIM_LINES||primTex||primBlend!=BLEND_ALPHABLEND) + { + batchOGL(); + primType=PRIM_LINES; + if(primBlend!=BLEND_ALPHAADD)setBlend(BLEND_ALPHAADD); + bindTexture(NULL); + } + int i=(primcnt++)*PRIM_LINES; + vertexArray[i].x=x1,vertexArray[i+1].x=x2; + vertexArray[i].y=y1,vertexArray[i+1].y=y2; + vertexArray[i].x=z1,vertexArray[i+1].x=z2; + vertexArray[i].col=vertexArray[i+1].col=color; + vertexArray[i].tx=vertexArray[i+1].tx=.0; + vertexArray[i].ty=vertexArray[i+1].ty=.0; + } +} +void SMELT_IMPL::smRenderLinefvd(float *p1,float *p2,DWORD color) +{ + if(vertexArray&&p1&&p2) + { + if(primType!=PRIM_LINES||primcnt>=VERTEX_BUFFER_SIZE/PRIM_LINES||primTex||primBlend!=BLEND_ALPHABLEND) + { + batchOGL(); + primType=PRIM_LINES; + if(primBlend!=BLEND_ALPHAADD)setBlend(BLEND_ALPHAADD); + bindTexture(NULL); + } + int i=(primcnt++)*PRIM_LINES; + vertexArray[i].x=p1[0],vertexArray[i+1].x=p2[0]; + vertexArray[i].y=p1[1],vertexArray[i+1].y=p2[1]; + vertexArray[i].x=p2[2],vertexArray[i+1].x=p2[2]; + vertexArray[i].col=vertexArray[i+1].col=color; + vertexArray[i].tx=vertexArray[i+1].tx=.0; + vertexArray[i].ty=vertexArray[i+1].ty=.0; + } +} +void SMELT_IMPL::smRenderTriangle(smTriangle *t) +{ + if(vertexArray) + { + if(primType!=PRIM_TRIANGLES||primcnt>=VERTEX_BUFFER_SIZE/PRIM_TRIANGLES|| + primTex!=t->tex||primBlend!=t->blend) + { + batchOGL(); + primType=PRIM_TRIANGLES; + if(primBlend!=t->blend)setBlend(t->blend); + bindTexture((glTexture*)t->tex); + } + memcpy(&vertexArray[(primcnt++)*PRIM_TRIANGLES],t->v,sizeof(smVertex)*PRIM_TRIANGLES); + } +} +void SMELT_IMPL::smRenderQuad(smQuad *q) +{ + if(vertexArray) + { + if(primType!=PRIM_QUADS||primcnt>=VERTEX_BUFFER_SIZE/PRIM_QUADS|| + primTex!=q->tex||primBlend!=q->blend) + { + batchOGL(); + primType=PRIM_QUADS; + if(primBlend!=q->blend)setBlend(q->blend); + bindTexture((glTexture*)q->tex); + } + memcpy(&vertexArray[(primcnt++)*PRIM_QUADS],q->v,sizeof(smVertex)*PRIM_QUADS); + } +} +smVertex* SMELT_IMPL::smGetVertArray() +{ + if(vertexArray) + { + batchOGL(); + return vertexArray; + } + else return NULL; +} +void SMELT_IMPL::smDrawVertArray(int prim,SMTEX texture,int blend,int _primcnt) +{ + primType=prim; + bindTexture((glTexture*)texture); + if(primBlend!=blend)setBlend(blend); + primcnt=primcnt; +} +void SMELT_IMPL::smDrawCustomIndexedVertices(smVertex* vb,WORD* ib,int vbc,int ibc,int blend,SMTEX texture) +{ + if(vertexArray) + { + batchOGL(); + + float twm=1.,thm=1.; + if(texture) + { + glTexture *ptex=(glTexture*)texture; + if(ptex->dw&&ptex->dh) + { + twm=(ptex->rw)/(float)(ptex->dw); + thm=(ptex->rh)/(float)(ptex->dh); + } + } + if(!tdmode) + { + float h=curTarget?curTarget->h:scrh; + for(int i=0;i<vbc;++i) + { + vertexArray[i].y=h-vertexArray[i].y; + vertexArray[i].z=-vertexArray[i].z; + } + } + for(int i=0;i<vbc;++i) + { + vb[i].tx*=twm; + vb[i].ty=(1.-vb[i].ty)*thm; + DWORD color=vb[i].col; + BYTE *col=(BYTE*)&vb[i].col; + BYTE a=((color>>24)&0xFF); + BYTE r=((color>>16)&0xFF); + BYTE g=((color>> 8)&0xFF); + BYTE b=((color>> 0)&0xFF); + col[0]=r;col[1]=g; + col[2]=b;col[3]=a; + } + if(texture!=primTex)bindTexture((glTexture*)texture); + if(blend!=primBlend)setBlend(blend); + glBindVertexArray(VertexArrayObject); + glBindBuffer(GL_ARRAY_BUFFER,VertexBufferObject); + glBufferData(GL_ARRAY_BUFFER,sizeof(smVertex)*vbc,vb,GL_STATIC_DRAW); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER,IndexBufferObject); + glBufferData(GL_ELEMENT_ARRAY_BUFFER,sizeof(GLushort)*ibc,ib,GL_STATIC_DRAW); + glDrawElements(GL_TRIANGLES,ibc,GL_UNSIGNED_SHORT,0); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER,IndexBufferObject); + glBufferData(GL_ELEMENT_ARRAY_BUFFER,sizeof(GLushort)*((VERTEX_BUFFER_SIZE*6)/4),indexBuf,GL_STATIC_DRAW); + glBindVertexArray(0); + if(texture!=primTex)bindTexture((glTexture*)primTex); + + } +} +SMTRG SMELT_IMPL::smTargetCreate(int w,int h,int ms) +{ + bool ok=false; + TRenderTargetList *pTarget=new TRenderTargetList; + memset(pTarget,0,sizeof(TRenderTargetList)); + pTarget->tex=buildTexture(w,h,NULL); + glTexture *gltex=(glTexture*)pTarget->tex; + gltex->isTarget=true;gltex->lost=false; + configTexture(gltex,w,h,NULL,false); + pTarget->w=w;pTarget->h=h; + ok=buildTarget(pTarget,gltex->name,w,h,ms); + if(!ok) + { + smLog("%s:" SLINE ": Failed to create render target.\n",GFX_GLFW_SRCFN); + smTextureFree(pTarget->tex); + delete pTarget; + return 0; + } + pTarget->next=targets; + targets=pTarget; + return (SMTRG)pTarget; +} +SMTEX SMELT_IMPL::smTargetTexture(SMTRG targ) +{ + TRenderTargetList *pTarg=(TRenderTargetList*)targ; + return targ?pTarg->tex:0; +} +void SMELT_IMPL::smTargetFree(SMTRG targ) +{ + TRenderTargetList *pTarget=targets,*pLastTarg=NULL; + while(pTarget) + { + if((TRenderTargetList*)targ==pTarget) + { + if(pLastTarg)pLastTarg->next=pTarget->next; + else targets=pTarget->next; + if(curTarget==(TRenderTargetList*)targ) + glBindFramebuffer(GL_FRAMEBUFFER_EXT,0); + if(pTarget->depth) + glDeleteRenderbuffers(1,&pTarget->depth); + glDeleteFramebuffers(1,&pTarget->frame); + if(pTarget->ms) + { + glDeleteRenderbuffers(1,&pTarget->colorms); + glDeleteRenderbuffers(1,&pTarget->scolor); + glDeleteRenderbuffers(1,&pTarget->sdepth); + glDeleteFramebuffers(1,&pTarget->sframe); + } + if(curTarget==(TRenderTargetList*)targ)curTarget=0; + smTextureFree(pTarget->tex); + delete pTarget; + return; + } + pLastTarg=pTarget; + pTarget=pTarget->next; + } +} +SMTEX SMELT_IMPL::smTextureCreate(int w,int h) +{ + DWORD *px=new DWORD[w*h]; + memset(px,0,sizeof(DWORD)*w*h); + SMTEX ret=buildTexture(w,h,px); + if(ret) + { + TTextureList *tex=new TTextureList; + tex->tex=ret; + tex->w=w; + tex->h=h; + tex->next=textures; + textures=tex; + } + return ret; +} +SMTEX SMELT_IMPL::smTextureLoad(const char *path) +{ + FILE *pFile;DWORD size,rsize;char *buff; + SMTEX ret=0; + pFile=fopen(path,"rb"); + if(!pFile)return 0; + fseek(pFile,0,SEEK_END);size=ftell(pFile);rewind(pFile); + buff=(char*)malloc(sizeof(char)*size); + if(!buff)return 0; + rsize=fread(buff,1,size,pFile); + if(rsize!=size)return 0; + ret=smTextureLoadFromMemory(buff,size);if(!ret)return 0; + glTexture *t=(glTexture*)ret; + configTexture(t,t->rw,t->rh,t->px); + delete[] t->px;t->px=NULL; + t->fn=strcpy(new char[strlen(path)+1],path); + free(buff); + fclose(pFile); + return ret; +} +SMTEX SMELT_IMPL::smTextureLoadFromMemory(const char *ptr,DWORD size) +{ + int w=0,h=0;SMTEX ret=0; + DWORD *px=decodeImage((BYTE*)ptr,NULL,size,w,h); + if(px)ret=buildTexture(w,h,px); + if(ret) + { + TTextureList *tex=new TTextureList; + tex->tex=ret;tex->w=w;tex->h=h; + tex->next=textures;textures=tex; + }else smLog("%s:" SLINE ": Unsupported texture format.\n",GFX_GLFW_SRCFN); + return ret; +} +void SMELT_IMPL::smTextureFree(SMTEX tex) +{ + if(!pOpenGLDevice)return; + TTextureList *ctex=textures,*lasttex=NULL; + while(ctex) + { + if(ctex->tex==tex) + { + if(lasttex)lasttex->next=ctex->next; + else textures=ctex->next; + delete ctex; + break; + } + lasttex=ctex; + ctex=ctex->next; + } + if(tex) + { + glTexture *ptex=(glTexture*)tex; + delete[] ptex->fn; + delete[] ptex->locpx; + delete[] ptex->px; + glDeleteTextures(1,&ptex->name); + delete ptex; + } +} +void SMELT_IMPL::smTextureOpt(int potopt,int filter) +{ + batchOGL(); + if(potopt==TPOT_NONPOT) + { + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_R,GL_CLAMP_TO_EDGE); + } + if(potopt==TPOT_POT) + { + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_REPEAT); + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_REPEAT); + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_R,GL_REPEAT); + } + filtermode=filter; + if(filter==TFLT_NEAREST) + { + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST); + } + if(filter==TFLT_LINEAR) + { + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR); + } +} +int SMELT_IMPL::smTextureGetWidth(SMTEX tex,bool original) +{ + if(original) + { + TTextureList *ctex=textures; + while(ctex){if(ctex->tex==tex)return ctex->w;ctex=ctex->next;} + } + else return ((glTexture*)tex)->rw; + return 0; +} +int SMELT_IMPL::smTextureGetHeight(SMTEX tex,bool original) +{ + if(original) + { + TTextureList *ctex=textures; + while(ctex){if(ctex->tex==tex)return ctex->h;ctex=ctex->next;} + } + else return ((glTexture*)tex)->rh; + return 0; +} +DWORD* SMELT_IMPL::smTextureLock(SMTEX tex,int l,int t,int w,int h,bool ro) +{ + glTexture *ptex=(glTexture*)tex; + if(ptex->locpx)return NULL; + bool fromfile=(ptex->px==NULL&&ptex->fn); + if(fromfile) + { + FILE *pFile;DWORD size,rsize;char *buff; + pFile=fopen(ptex->fn,"rb"); + if(!pFile)return 0; + fseek(pFile,0,SEEK_END);size=ftell(pFile);rewind(pFile); + buff=(char*)malloc(sizeof(char)*size); + if(!buff)return 0; + rsize=fread(buff,1,size,pFile); + if(rsize!=size)return 0; + int _w,_h; + ptex->px=decodeImage((BYTE*)buff,ptex->fn,size,_w,_h); + if(_w!=(int)ptex->rw||_h!=(int)ptex->rh) + {delete[] ptex->px;ptex->px=NULL;} + free(buff); + fclose(pFile); + if(ptex->px&&!ro){delete[] ptex->fn;ptex->fn=NULL;} + } + if(!ptex->px&&!ptex->isTarget)return 0; + if(!w)w=ptex->rw;if(!h)h=ptex->rh; + //asserts... + ptex->roloc=ro;ptex->locx=l;ptex->locy=t;ptex->locw=w;ptex->loch=h; + ptex->locpx=new DWORD[w*h]; + if(!ptex->isTarget) + { + DWORD *dst=ptex->locpx,*src=ptex->px+((t*ptex->rw)+l); + for(int i=0;i<h;++i)//TODO: flip it... + { + memcpy(dst,src,w*sizeof(DWORD)); + dst+=w;src+=ptex->rw; + } + } + else return 0; + return ptex->locpx; +} +void SMELT_IMPL::smTexutreUnlock(SMTEX tex) +{ + glTexture *ptex=(glTexture*)tex; + if(!ptex->locpx)return; + if(!ptex->roloc) + { + DWORD *src=ptex->locpx+ptex->locw*ptex->loch, + *dst=ptex->px+(((ptex->rh-ptex->locy-1)*ptex->rw)+ptex->locx); + for(int i=0;i<ptex->loch;++i) + { + memcpy(dst,src,ptex->locw*sizeof(DWORD)); + dst-=ptex->rw;src-=ptex->locw; + } + if(ptex->lost)configTexture(ptex,ptex->rw,ptex->rh,ptex->px); + else + { + glBindTexture(GL_TEXTURE_2D,ptex->name); + glTexSubImage2D(GL_TEXTURE_2D,0,ptex->locx, + (ptex->rh-ptex->locy)-ptex->loch,ptex->locw,ptex->loch,GL_RGBA, + GL_UNSIGNED_BYTE,ptex->locpx); + glBindTexture(GL_TEXTURE_2D,primTex?(((glTexture*)primTex)->name):0); + } + } + if(ptex->fn&&ptex->roloc){delete[] ptex->px;ptex->px=NULL;} + delete[] ptex->locpx;ptex->locpx=NULL; + ptex->roloc=false; + ptex->locx=ptex->locy=ptex->locw=ptex->loch=-1; +} + +inline bool ispot(GLuint x){return((x&(x-1))==0);} +inline GLuint npot(GLuint x) +{ + --x; + for(unsigned i=1;i<sizeof(GLuint)*8;i<<=1)x|=x>>i; + return x+1; +} +DWORD* SMELT_IMPL::decodeImage(BYTE *data,const char *fn,DWORD size,int &w,int &h) +{ + w=h=0; + DWORD *px=NULL; + int fnlen=fn?strlen(fn):0; + if((fnlen>5)&&(strcasecmp((fn+fnlen)-5,".rgba"))==0)//raw image... pending remove + { + DWORD *ptr=(DWORD*)data; + DWORD _w=ptr[0],_h=ptr[1]; + if(((_w*_h*4)+8)==size) + { + w=_w;h=_h; + px=new DWORD[w*h]; + memcpy(px,ptr+2,w*h*4); + } + return px; + } + CxImage img; + img.Decode(data,size,CXIMAGE_FORMAT_UNKNOWN); + if(img.IsValid()) + { + w=img.GetWidth();h=img.GetHeight(); + px=new DWORD[w*h]; + BYTE *sptr=(BYTE*)px; + bool atunnel=img.AlphaIsValid(); + for(int i=0;i<h;++i) + for(int j=0;j<w;++j) + { + RGBQUAD rgb=img.GetPixelColor(j,i,true); + *(sptr++)=rgb.rgbRed; + *(sptr++)=rgb.rgbGreen; + *(sptr++)=rgb.rgbBlue; + *(sptr++)=atunnel?rgb.rgbReserved:0xFF; + } + } + return px; +} +void SMELT_IMPL::bindTexture(glTexture *t) +{ + if(t&&t->lost) + configTexture(t,t->rw,t->rh,t->px); + if(((SMTEX)t)!=primTex) + { + glBindTexture(GL_TEXTURE_2D,t?t->name:((glTexture*)emptyTex)->name); + glUniform1i(loc_tex,0); + primTex=(SMTEX)t; + } +} +bool SMELT_IMPL::buildTarget(TRenderTargetList *pTarget,GLuint texid,int w,int h,int ms=0) +{ + bool ok=true; + if(ms) + { + glGenFramebuffers(1,&pTarget->sframe); + glBindFramebuffer(GL_FRAMEBUFFER,pTarget->sframe); + glGenRenderbuffers(1,&pTarget->scolor); + glBindRenderbuffer(GL_RENDERBUFFER,pTarget->scolor); + glRenderbufferStorage(GL_RENDERBUFFER,GL_RGBA,w,h); + glGenRenderbuffers(1,&pTarget->sdepth); + glBindRenderbuffer(GL_RENDERBUFFER,pTarget->sdepth); + glRenderbufferStorage(GL_RENDERBUFFER,GL_DEPTH_COMPONENT24,w,h); + glFramebufferRenderbuffer(GL_FRAMEBUFFER,GL_COLOR_ATTACHMENT0,GL_RENDERBUFFER,pTarget->scolor); + glFramebufferRenderbuffer(GL_FRAMEBUFFER,GL_DEPTH_ATTACHMENT,GL_RENDERBUFFER,pTarget->sdepth); + + glGenFramebuffers(1,&pTarget->frame); + glBindFramebuffer(GL_FRAMEBUFFER,pTarget->frame); + glGenRenderbuffers(1,&pTarget->colorms); + glBindRenderbuffer(GL_RENDERBUFFER,pTarget->colorms); + glRenderbufferStorageMultisample(GL_RENDERBUFFER,ms,GL_RGBA,w,h); + glGenRenderbuffers(1,&pTarget->depth); + glBindRenderbuffer(GL_RENDERBUFFER,pTarget->depth); + glRenderbufferStorageMultisample(GL_RENDERBUFFER,ms,GL_DEPTH_COMPONENT24,w,h); + glFramebufferRenderbuffer(GL_FRAMEBUFFER,GL_COLOR_ATTACHMENT0,GL_RENDERBUFFER,pTarget->colorms); + glFramebufferRenderbuffer(GL_FRAMEBUFFER,GL_DEPTH_ATTACHMENT,GL_RENDERBUFFER,pTarget->depth); + GLenum rc=glCheckFramebufferStatus(GL_FRAMEBUFFER); + if((rc==GL_FRAMEBUFFER_COMPLETE)&&(glGetError()==GL_NO_ERROR)) + { + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); + ok=true;pTarget->ms=ms; + } + else + { + glBindFramebuffer(GL_FRAMEBUFFER,0); + glDeleteRenderbuffers(1,&pTarget->colorms); + glDeleteRenderbuffers(1,&pTarget->depth); + glDeleteFramebuffers(1,&pTarget->frame); + glDeleteFramebuffers(1,&pTarget->sframe); + ok=false;ms=0; + } + glBindFramebuffer(GL_FRAMEBUFFER,curTarget?curTarget->frame:0); + } + if(!ms) + { + glGenFramebuffers(1,&pTarget->frame); + glGenRenderbuffers(1,&pTarget->depth); + glBindFramebuffer(GL_FRAMEBUFFER,pTarget->frame); + glFramebufferTexture2D(GL_FRAMEBUFFER,GL_COLOR_ATTACHMENT0,GL_TEXTURE_2D,texid,0); + glBindRenderbuffer(GL_RENDERBUFFER,pTarget->depth); + glRenderbufferStorage(GL_RENDERBUFFER,GL_DEPTH_COMPONENT24,w,h); + glFramebufferRenderbuffer(GL_FRAMEBUFFER,GL_DEPTH_ATTACHMENT,GL_RENDERBUFFER,pTarget->depth); + GLenum rc=glCheckFramebufferStatus(GL_FRAMEBUFFER); + if((rc==GL_FRAMEBUFFER_COMPLETE)&&(glGetError()==GL_NO_ERROR)) + { + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); + ok=true;pTarget->ms=0; + } + else + { + glBindFramebuffer(GL_FRAMEBUFFER,0); + glDeleteRenderbuffers(1,&pTarget->depth); + glDeleteFramebuffers(1,&pTarget->frame); + ok=false; + } + glBindFramebuffer(GL_FRAMEBUFFER,curTarget?curTarget->frame:0); + } + return ok; +} +void SMELT_IMPL::configTexture(glTexture *t,int w,int h,DWORD *px,bool compressed) +{ + GLuint tex=0; + glGenTextures(1,&tex); + t->lost=false;t->name=tex;t->rw=w;t->rh=h;t->px=px; + t->dw=t->dh=0; + bool fromfile=(!px&&(t->fn)); + if(fromfile) + { + FILE *pFile;DWORD size,rsize;char *buff; + pFile=fopen(t->fn,"rb"); + if(!pFile)return; + fseek(pFile,0,SEEK_END);size=ftell(pFile);rewind(pFile); + buff=(char*)malloc(sizeof(char)*size); + if(!buff)return; + rsize=fread(buff,1,size,pFile); + if(rsize!=size)return; + int _w,_h; + px=decodeImage((BYTE*)buff,t->fn,size,_w,_h); + if(_w!=w||_h!=h){delete[] px;px=NULL;} + free(buff); + fclose(pFile); + } + glBindTexture(GL_TEXTURE_2D,tex); + glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MIN_LOD,0.0f); + glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_MAX_LOD,0.0f); + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_BASE_LEVEL,0); + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAX_LEVEL,0); + compressed=false;//compression is unusable at this moment + const GLenum fmt=compressed?/*GL_COMPRESSED_RGBA_S3TC_DXT5_EXT*/GL_COMPRESSED_RGBA_ARB:GL_RGBA8; + glTexImage2D(GL_TEXTURE_2D,0,fmt,w,h,0,GL_RGBA,GL_UNSIGNED_BYTE,px); + glBindTexture(GL_TEXTURE_2D,primTex?(((glTexture*)primTex)->name):0); + if(fromfile)delete[] px; +} +SMTEX SMELT_IMPL::buildTexture(int w,int h,DWORD *px) +{ + glTexture *ret=new glTexture; + memset(ret,0,sizeof(glTexture)); + ret->lost=true; + ret->rw=w;ret->rh=h;ret->px=px; + return (SMTEX)ret; +} +void SMELT_IMPL::configProjectionMatrix2D(int w,int h) +{ + memset(mproj,0,sizeof(mproj)); + mproj[0]=2./w; + mproj[5]=2./h; + mproj[10]=-2.; + mproj[15]=1.; + mproj[12]=mproj[13]=mproj[14]=-1.; + glUniformMatrix4fv(loc_mproj,1,0,mproj); +} +void SMELT_IMPL::configProjectionMatrix3D(int w,int h,float fov) +{ + memset(mproj,0,sizeof(mproj)); + float f=1./tanf(M_PI*fov/360.); + float ar=(float)w/(float)h; + float Near=0.1,Far=1000.; + mproj[0]=f/ar;mproj[5]=f; + mproj[10]=(Far+Near)/(Near-Far);mproj[11]=-1.0f; + mproj[14]=(2*Far*Near)/(Near-Far); + glUniformMatrix4fv(loc_mproj,1,0,mproj); +} +void SMELT_IMPL::batchOGL(bool endScene) +{ + if(vertexArray&&primcnt) + { + float twm=1.,thm=1.; + if(primTex) + { + glTexture *ptex=(glTexture*)primTex; + if(ptex->dw&&ptex->dh) + { + twm=(ptex->rw)/(float)(ptex->dw); + thm=(ptex->rh)/(float)(ptex->dh); + } + } + if(!tdmode) + { + float h=curTarget?curTarget->h:scrh; + for(int i=0;i<primcnt*primType;++i) + { + vertexArray[i].y=h-vertexArray[i].y; + vertexArray[i].z=-vertexArray[i].z; + } + } + for(int i=0;i<primcnt*primType;++i) + { + vertexArray[i].tx*=twm; + vertexArray[i].ty*=thm; + DWORD color=vertexArray[i].col; + BYTE *col=(BYTE*)&vertexArray[i].col; + BYTE a=((color>>24)&0xFF); + BYTE r=((color>>16)&0xFF); + BYTE g=((color>> 8)&0xFF); + BYTE b=((color>> 0)&0xFF); + col[0]=r;col[1]=g; + col[2]=b;col[3]=a; + } + glBindVertexArray(VertexArrayObject); + glBindBuffer(GL_ARRAY_BUFFER,VertexBufferObject); + glBufferData(GL_ARRAY_BUFFER,sizeof(smVertex)*primcnt*primType,vertexBuf,GL_STATIC_DRAW); + switch(primType) + { + case PRIM_LINES: + glDrawArrays(GL_LINES,0,2*primcnt); + break; + case PRIM_TRIANGLES: + glDrawArrays(GL_TRIANGLES,0,3*primcnt); + break; + case PRIM_QUADS: + glDrawElements(GL_TRIANGLES,6*primcnt,GL_UNSIGNED_SHORT,0); +#if 0 + for (int i=0;i<primcnt*6;i+=3) + { + printf("idxbuf:%d\n",indexBuf[i]); + printf("QUAD'S TRIANGLE:\n"); +#define printVertex(a) printf("(%.2f,%.2f,%.2f),0x%X,(%.2f,%.2f)\n",a.x,a.y,a.z,a.col,a.tx,a.ty); + printf("#%d: ",indexBuf[i+0]);printVertex(vertexBuf[indexBuf[i+0]]); + printf("#%d: ",indexBuf[i+1]);printVertex(vertexBuf[indexBuf[i+1]]); + printf("#%d: ",indexBuf[i+2]);printVertex(vertexBuf[indexBuf[i+2]]); +#undef printVertex + } +#endif + break; + } + glBindVertexArray(0); + primcnt=0; + } + if(vertexArray)vertexArray=endScene?0:vertexBuf; +} +void SMELT_IMPL::setBlend(int blend) +{ + if((blend&BLEND_ALPHABLEND)!=(primBlend&BLEND_ALPHABLEND)) + { + if(blend&BLEND_ALPHABLEND)glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA); + else glBlendFunc(blend&BLEND_COLORINV?GL_ONE_MINUS_DST_COLOR:GL_SRC_ALPHA,blend&BLEND_COLORINV?GL_ZERO:GL_ONE); + } + if((blend&BLEND_ZWRITE)!=(primBlend&BLEND_ZWRITE)) + { + if(blend&BLEND_ZWRITE||tdmode)glDepthMask(GL_TRUE); + else glDepthMask(GL_FALSE); + } + if((blend&BLEND_COLORADD)!=(primBlend&BLEND_COLORADD)) + { + if(blend&BLEND_COLORADD)glTexEnvi(GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE,GL_ADD); + else glTexEnvi(GL_TEXTURE_ENV,GL_TEXTURE_ENV_MODE,GL_MODULATE); + } + if((blend&BLEND_COLORINV)!=(primBlend&BLEND_COLORINV)) + { + if(blend&BLEND_COLORINV)glBlendFunc(GL_ONE_MINUS_DST_COLOR,GL_ZERO); + else glBlendFunc(GL_SRC_ALPHA,blend&BLEND_ALPHABLEND?GL_ONE_MINUS_SRC_ALPHA:GL_ONE); + } + primBlend=blend; +} +void SMELT_IMPL::unloadGLEntryPoints() +{ +} +bool SMELT_IMPL::checkGLExtension(const char *extlist,const char *ext) +{ + return true;/*shit* + const char *ptr=strstr(extlist,ext); + if(ptr==NULL)return false; + const char endchar=ptr[strlen(ext)]; + if((endchar=='\0')||(endchar==' '))return true; + return false;*/ +} +bool SMELT_IMPL::loadGLEntryPoints() +{ + smLog("%s:" SLINE ": Initializing with OpenGL core profile...\n",GFX_GLFW_SRCFN); + pOpenGLDevice->have_base_opengl=true; + /* + * All OpenGL features utilized by SMELT are in the core profile + * for OpenGL >= 3.2. So this function is essentially useless. + */ + glewExperimental=true; + GLenum glewret=glewInit(); + if(glewret) + { + smLog("%s:" SLINE ": glewInit() failed with error %s\n",GFX_GLFW_SRCFN,glewGetErrorString(glewret)); + pOpenGLDevice->have_base_opengl=false; + return false; + } + if (!pOpenGLDevice->have_base_opengl) + { + unloadGLEntryPoints(); + return false; + } + smLog("%s:" SLINE ": GL_RENDERER: %s\n",GFX_GLFW_SRCFN,(const char *)glGetString(GL_RENDERER)); + smLog("%s:" SLINE ": GL_VENDOR: %s\n",GFX_GLFW_SRCFN,(const char *)glGetString(GL_VENDOR)); + smLog("%s:" SLINE ": GL_VERSION: %s\n",GFX_GLFW_SRCFN,(const char *)glGetString(GL_VERSION)); + const char *verstr=(const char*)glGetString(GL_VERSION); + int maj=0,min=0; + sscanf(verstr,"%d.%d",&maj,&min); + if((maj<3)||((maj==3)&&(min<2))) + { + smLog("%s:" SLINE ": OpenGL implementation must be at least version 3.2.\n",GFX_GLFW_SRCFN); + unloadGLEntryPoints(); + return false; + } + return true; +} +bool SMELT_IMPL::initOGL() +{ + primTex=0;emptyTex=0; + if(pOpenGLDevice){smLog("%s:" SLINE ": Multiple initialization!\n",GFX_GLFW_SRCFN);return false;} + pOpenGLDevice=new TOpenGLDevice; + if(!loadGLEntryPoints())return false; + smLog("%s:" SLINE ": Mode: %d x %d\n",GFX_GLFW_SRCFN,scrw,scrh); + vertexArray=NULL;textures=NULL; + ShaderProgram=vertshader=fragshader=0; + VertexBufferObject=VertexArrayObject=IndexBufferObject=0; + if(!confOGL())return false; + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); + if(!curTarget)glfwSwapBuffers((GLFWwindow*)hwnd); + return true; +} +void SMELT_IMPL::finiOGL() +{ + while(textures)smTextureFree(textures->tex); + while(targets)smTargetFree((SMTRG)targets); + textures=NULL;targets=NULL;vertexArray=NULL; + delete[] vertexBuf;vertexBuf=NULL; + delete[] indexBuf;indexBuf=NULL; + if(pOpenGLDevice) + { + if(1) + { + if(VertexBufferObject!=0) + { + glBindVertexArray(VertexArrayObject); + glBindBuffer(GL_ARRAY_BUFFER,0); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER,0); + glDeleteBuffers(1,&VertexBufferObject); + glDeleteBuffers(1,&IndexBufferObject); + glBindVertexArray(0); + glDeleteVertexArrays(1,&VertexArrayObject); + VertexArrayObject=0; + VertexBufferObject=0; + IndexBufferObject=0; + } + } + glDeleteProgram(ShaderProgram); + delete pOpenGLDevice; + pOpenGLDevice=NULL; + } +} +bool SMELT_IMPL::restOGL() +{ + if(!pOpenGLDevice)return false; + delete[] vertexBuf;vertexBuf=NULL; + delete[] indexBuf;indexBuf=NULL; + unloadGLEntryPoints(); + if(!loadGLEntryPoints())return false; + if(!confOGL())return false; + //if()return();//TODO: rest func + return true; +} +bool SMELT_IMPL::confOGL() +{ + bindTexture(NULL); + DWORD ones=~0U; + if(!emptyTex) + {emptyTex=buildTexture(1,1,&ones);} + configTexture((glTexture*)emptyTex,1,1,&ones,false); + for(TTextureList *i=textures;i;i=i->next) + { + glTexture *t=(glTexture*)i->tex; + if(!t)continue;t->lost=true;t->name=0; + } + TRenderTargetList *target=targets; + while(target) + { + glTexture *tex=(glTexture*)target->tex; + bindTexture(tex);bindTexture(NULL); + buildTarget(target,tex?tex->name:0,target->w,target->h); + target=target->next; + } + int compret=0; + ShaderProgram=glCreateProgram(); + vertshader=glCreateShader(GL_VERTEX_SHADER); + fragshader=glCreateShader(GL_FRAGMENT_SHADER); + glShaderSource(vertshader,1,&fixedfunc_pipeline_vsh,NULL); + glShaderSource(fragshader,1,&fixedfunc_pipeline_fsh,NULL); + glCompileShader(vertshader); + glGetShaderiv(vertshader,GL_COMPILE_STATUS,&compret); + //char log[1024]; + //glGetShaderInfoLog(vertshader,1024,NULL,log); + //puts(log); + if(!compret) + smLog("%s:" SLINE ": Warning: Your shitty vertex shader failed to compile!\n",GFX_GLFW_SRCFN); + glCompileShader(fragshader); + glGetShaderiv(fragshader,GL_COMPILE_STATUS,&compret); + //glGetShaderInfoLog(fragshader,1024,NULL,log); + //puts(log); + if(!compret) + smLog("%s:" SLINE ": Warning: Your shitty fragment shader failed to compile!\n",GFX_GLFW_SRCFN); + glAttachShader(ShaderProgram,vertshader); + glAttachShader(ShaderProgram,fragshader); + glLinkProgram(ShaderProgram); + //glGetProgramInfoLog(ShaderProgram,1024,NULL,log); + //puts(log); + glGetProgramiv(ShaderProgram,GL_LINK_STATUS,&compret); + if(!compret) + smLog("%s:" SLINE ": Warning: Default shader linkage failure!\n",GFX_GLFW_SRCFN); + glDeleteShader(vertshader); + glDeleteShader(fragshader); + glUseProgram(ShaderProgram); + loc_tex=glGetUniformLocation(ShaderProgram,"tex"); + loc_mmodv=glGetUniformLocation(ShaderProgram,"mmodv"); + loc_mproj=glGetUniformLocation(ShaderProgram,"mproj"); + vertexBuf=new smVertex[VERTEX_BUFFER_SIZE]; + indexBuf=new GLushort[VERTEX_BUFFER_SIZE*6/4]; + GLushort* indices=indexBuf; + for(int i=0,n=0;i<VERTEX_BUFFER_SIZE/4;++i) + { + *indices++=n;*indices++=n+1; + *indices++=n+2;*indices++=n+2; + *indices++=n+3;*indices++=n; + n+=4; + } + glGenBuffers(1,&VertexBufferObject); + glGenVertexArrays(1,&VertexArrayObject); + glGenBuffers(1,&IndexBufferObject); + glBindVertexArray(VertexArrayObject); + glBindBuffer(GL_ARRAY_BUFFER,VertexBufferObject); + glBufferData(GL_ARRAY_BUFFER,sizeof(smVertex)*VERTEX_BUFFER_SIZE,vertexBuf,GL_STATIC_DRAW); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER,IndexBufferObject); + glBufferData(GL_ELEMENT_ARRAY_BUFFER,sizeof(GLushort)*((VERTEX_BUFFER_SIZE*6)/4),indexBuf,GL_STATIC_DRAW); + glVertexAttribPointer(0,3,GL_FLOAT,0,sizeof(smVertex),(void*)offsetof(smVertex,x));//vp + glVertexAttribPointer(1,4,GL_UNSIGNED_BYTE,1,sizeof(smVertex),(void*)offsetof(smVertex,col));//vc + glVertexAttribPointer(2,2,GL_FLOAT,0,sizeof(smVertex),(void*)offsetof(smVertex,tx));//vtc + glEnableVertexAttribArray(0); + glEnableVertexAttribArray(1); + glEnableVertexAttribArray(2); + glBindVertexArray(0); + glPixelStorei(GL_UNPACK_ALIGNMENT,1); + glPixelStorei(GL_PACK_ALIGNMENT,1); + glEnable(GL_SCISSOR_TEST); + glDisable(GL_CULL_FACE); + glActiveTexture(GL_TEXTURE0); + glDepthFunc(GL_GEQUAL); + glEnable(GL_DEPTH_TEST); + glEnable(GL_BLEND); + glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA); + filtermode=TFLT_LINEAR; + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR); + //GL_REPEAT doesn't work with non-pot textures... + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_CLAMP_TO_EDGE); + glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_R,GL_CLAMP_TO_EDGE); + primcnt=0;primType=PRIM_QUADS;primBlend=BLEND_ALPHABLEND;primTex=0; + glScissor(0,0,scrw,scrh); + glViewport(0,0,scrw,scrh); + glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); + configProjectionMatrix2D(scrw,scrh); + smMatrix Mmodv;Mmodv.loadIdentity(); + memcpy(mmodv,Mmodv.m,sizeof(mmodv)); + glUniformMatrix4fv(loc_mmodv,1,0,mmodv); + return true; +} |