mirror of
https://github.com/w23/xash3d-fwgs
synced 2024-12-15 13:41:33 +01:00
ref_soft: Implement rendermodes, colors, alpha textures/blending
This commit is contained in:
parent
ae6b460f35
commit
f23ecc6895
@ -376,6 +376,7 @@ void R_AllowFog(qboolean allowed)
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void GL_SetRenderMode(int mode)
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{
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vid.rendermode = mode;
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/// TODO: table shading/blending???
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/// maybe, setup block drawing function pointers here
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}
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40
r_draw.c
40
r_draw.c
@ -108,12 +108,12 @@ void R_DrawStretchPicImplementation (int x, int y, int w, int h, int s1, int t1,
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{
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sv = (skip + v)*(t2-t1)/h + t1;
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source = pic->pixels[0] + sv*pic->width + s1;
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if (w == s2 - s1)
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memcpy (dest, source, w * 2);
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else
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{
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f = 0;
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fstep = s2*0x10000/w;
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if( w == s2 - s1 )
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fstep = 0x10000;
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#if 0
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for (u=0 ; u<w ; u+=4)
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{
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dest[u] = source[f>>16];
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@ -125,6 +125,37 @@ void R_DrawStretchPicImplementation (int x, int y, int w, int h, int s1, int t1,
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dest[u+3] = source[f>>16];
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f += fstep;
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}
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#else
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for (u=0 ; u<w ; u++)
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{
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pixel_t src = source[f>>16];
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int alpha = vid.alpha;
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if( pic->transparent )
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{
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alpha &= src >> 16 - 3;
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src = src << 3;
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}
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if( vid.color != COLOR_WHITE )
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src = vid.modmap[src & 0xff00|(vid.color>>8)] << 8 | (src & vid.color & 0xff) | ((src & 0xff) >> 1);
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if( vid.rendermode == kRenderTransAdd)
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{
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pixel_t screen = dest[u];
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dest[u] = vid.addmap[src & 0xff00|(screen>>8)] << 8 | (screen & 0xff) | ((src & 0xff) >> 0);
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}
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else if( alpha < 7) // && (vid.rendermode == kRenderTransAlpha || vid.rendermode == kRenderTransTexture ) )
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{
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pixel_t screen = dest[u];
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dest[u] = vid.alphamap[(vid.alpha << 16)|(src & 0xff00)|(screen>>8)] << 8 | (screen & 0xff) | ((src & 0xff) >> 1);
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}
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else
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dest[u] = src;
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f += fstep;
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}
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#endif
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}
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}
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}
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@ -160,7 +191,7 @@ void R_DrawTileClear( int texnum, int x, int y, int w, int h )
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image_t *pic;
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pixel_t *psrc, *pdest;
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//GL_SetRenderMode( kRenderNormal );
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GL_SetRenderMode( kRenderNormal );
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_TriColor4f( 1.0f, 1.0f, 1.0f, 1.0f );
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GL_Bind( XASH_TEXTURE0, texnum );
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@ -239,6 +270,7 @@ R_Set2DMode
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*/
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void R_Set2DMode( qboolean enable )
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{
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vid.color = COLOR_WHITE;
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if( enable )
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{
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// if( glState.in2DMode )
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130
r_glblit.c
130
r_glblit.c
@ -38,9 +38,103 @@ int tex;
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unsigned short *buffer;
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#define LOAD(x) p##x = gEngfuncs.GL_GetProcAddress(#x)
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void R_InitBlit()
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void R_BuildScreenMap()
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{
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int i;
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#ifdef SEPARATE_BLIT
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for( i = 0; i < 256; i++ )
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{
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unsigned int r,g,b;
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// 332 to 565
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r = ((i >> (8 - 3) )<< 2 ) & MASK(5);
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g = ((i >> (8 - 3 - 3)) << 3) & MASK(6);
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b = ((i >> (8 - 3 - 3 - 2)) << 3) & MASK(5);
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vid.screen_major[i] = r << (6 + 5) | (g << 5) | b;
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// restore minor GBRGBRGB
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r = MOVE_BIT(i, 5, 1) | MOVE_BIT(i, 2, 0);
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g = MOVE_BIT(i, 7, 2) | MOVE_BIT(i, 4, 1) | MOVE_BIT(i, 1, 0);
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b = MOVE_BIT(i, 6, 2) | MOVE_BIT(i, 3, 1) | MOVE_BIT(i, 0, 0);
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vid.screen_minor[i] = r << (6 + 5) | (g << 5) | b;
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}
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#else
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for( i = 0; i < 256; i++ )
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{
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unsigned int r,g,b , major, j;
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// 332 to 565
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r = ((i >> (8 - 3) )<< 2 ) & MASK(5);
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g = ((i >> (8 - 3 - 3)) << 3) & MASK(6);
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b = ((i >> (8 - 3 - 3 - 2)) << 3) & MASK(5);
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major = r << (6 + 5) | (g << 5) | b;
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for( j = 0; j < 256; j++ )
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{
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// restore minor GBRGBRGB
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r = MOVE_BIT(i, 5, 1) | MOVE_BIT(i, 2, 0);
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g = MOVE_BIT(i, 7, 2) | MOVE_BIT(i, 4, 1) | MOVE_BIT(i, 1, 0);
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b = MOVE_BIT(i, 6, 2) | MOVE_BIT(i, 3, 1) | MOVE_BIT(i, 0, 0);
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vid.screen[(i<<8)|j] = r << (6 + 5) | (g << 5) | b | major;
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}
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}
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#endif
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}
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void R_BuildBlendMaps()
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{
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unsigned int r1, g1, b1;
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unsigned int r2, g2, b2;
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for( r1 = 0; r1 < BIT(3); r1++ )
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for( g1 = 0; g1 < BIT(3); g1++ )
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for( b1 = 0; b1 < BIT(2); b1++ )
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for( r2 = 0; r2 < BIT(3); r2++ )
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for( g2 = 0; g2 < BIT(3); g2++ )
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for( b2 = 0; b2 < BIT(2); b2++ )
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{
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unsigned int r, g, b;
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unsigned short index1 = r1 << (2 + 3) | g1 << 2 | b1;
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unsigned short index2 = (r2 << (2 + 3) | g2 << 2 | b2) << 8;
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unsigned int a;
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r = r1 + r2;
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g = g1 + g2;
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b = b1 + b2;
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if( r > MASK(2) )
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r = MASK(2);
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if( g > MASK(2) )
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g = MASK(2);
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if( b > MASK(1) )
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b = MASK(1);
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ASSERT(!vid.addmap[index2|index1]);
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vid.addmap[index2|index1] = r << (2 + 3) | g << 2 | b;
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r = r1 * r2 / MASK(2);
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g = g1 * g2 / MASK(2);
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b = b1 * b2 / MASK(1);
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vid.modmap[index2|index1] = r << (2 + 3) | g << 2 | b;
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for( a = 0; a < 8; a++ )
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{
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r = r1 * a / 7 + r2 * (7 - a) / 7;
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g = g1 * a / 7 + g2 * (7 - a) / 7;
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b = b1 * a / 7 + b2 * (7 - a) / 7;
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vid.alphamap[a << 16|index2|index1] = r << (2 + 3) | g << 2 | b;
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}
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}
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}
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void R_InitBlit()
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{
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LOAD(glBegin);
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LOAD(glEnd);
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LOAD(glTexCoord2f);
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@ -58,7 +152,7 @@ void R_InitBlit()
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LOAD(glGetError);
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LOAD(glGenTextures);
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LOAD(glTexParameteri);
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#ifdef GLDEBUG
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if( gpGlobals->developer )
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{
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gEngfuncs.Con_Reportf( "Installing GL_DebugOutput...\n");
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@ -70,25 +164,14 @@ void R_InitBlit()
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// enable all the low priority messages
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pglDebugMessageControlARB( GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_LOW_ARB, 0, NULL, true );
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#endif
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pglGenTextures( 1, &tex );
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buffer = Mem_Malloc( r_temppool, 1920*1080*2 );
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for( i = 0; i < 256; i++ )
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{
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unsigned int r,g,b;
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// 332 to 565
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r = ((i >> (8 - 3) )<< 2 ) & MASK(5);
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g = ((i >> (8 - 3 - 3)) << 3) & MASK(6);
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b = ((i >> (8 - 3 - 3 - 2)) << 3) & MASK(5);
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vid.screen_major[i] = r << (6 + 5) | (g << 5) | b;
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// restore minor GBRGBRGB
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r = MOVE_BIT(i, 5, 1) | MOVE_BIT(i, 2, 0);
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g = MOVE_BIT(i, 7, 2) | MOVE_BIT(i, 4, 1) | MOVE_BIT(i, 1, 0);
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b = MOVE_BIT(i, 6, 2) | MOVE_BIT(i, 3, 1) | MOVE_BIT(i, 0, 0);
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vid.screen_minor[i] = r << (6 + 5) | (g << 5) | b;
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}
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R_BuildScreenMap();
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R_BuildBlendMaps();
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}
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void R_BlitScreen()
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@ -99,11 +182,18 @@ void R_BlitScreen()
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for( i = 0; i < vid.width * vid.height;i++)
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{
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#ifdef SEPARATE_BLIT
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// need only 1024 bytes table, but slower
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// wtf?? maybe some prefetch???
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byte major = buf[(i<<1)+1];
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byte minor = buf[(i<<1)];
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buffer[i] = vid.screen_major[major]|vid.screen_minor[minor];
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buffer[i] = vid.screen_major[major] |vid.screen_minor[minor];
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#else
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buffer[i] = vid.screen[vid.buffer[i]];
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#endif
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}
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pglBindTexture(GL_TEXTURE_2D, tex);
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pglViewport( 0, 0, gpGlobals->width, gpGlobals->height );
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pglMatrixMode( GL_PROJECTION );
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@ -119,6 +209,7 @@ void R_BlitScreen()
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pglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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pglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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//gEngfuncs.Con_Printf("%d\n",pglGetError());
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pglTexImage2D( GL_TEXTURE_2D, 0, GL_RGB, vid.width, vid.height, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, buffer );
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//gEngfuncs.Con_Printf("%d\n",pglGetError());
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pglBegin( GL_QUADS );
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@ -136,4 +227,5 @@ void R_BlitScreen()
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pglEnd();
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pglDisable( GL_TEXTURE_2D );
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gEngfuncs.GL_SwapBuffers();
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memset( vid.buffer, 0, vid.width * vid.height * 2 );
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}
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23
r_image.c
23
r_image.c
@ -220,7 +220,7 @@ static void GL_SetTextureFormat( image_t *tex, pixformat_t format, int channelMa
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qboolean haveAlpha = ( channelMask & IMAGE_HAS_ALPHA );
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Assert( tex != NULL );
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tex->transparent = !!( channelMask & IMAGE_HAS_ALPHA );
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//tex->transparent = !!( channelMask & IMAGE_HAS_ALPHA );
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}
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/*
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@ -509,16 +509,26 @@ static qboolean GL_UploadTexture( image_t *tex, rgbdata_t *pic )
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if( !pic->buffer )
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return true;
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/// TODO: generate mipmaps
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if( tex->flags & TF_HAS_ALPHA )
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tex->transparent = true;
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tex->pixels[0] = Mem_Calloc( r_temppool, tex->width * tex->height * sizeof(pixel_t) + 64 );
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for( i = 0; i < tex->width * tex->height; i++ )
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{
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unsigned int r, g, b, major, minor;
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#if 0
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r = pic->buffer[i * 4 + 0] * MASK(5-1) / 255;
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g = pic->buffer[i * 4 + 1] * MASK(6-1) / 255;
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b = pic->buffer[i * 4 + 2] * MASK(5-1) / 255;
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#else
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// seems to look better
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r = pic->buffer[i * 4 + 0] * BIT(5) / 256;
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g = pic->buffer[i * 4 + 1] * BIT(6) / 256;
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b = pic->buffer[i * 4 + 2] * BIT(5) / 256;
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#endif
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// 565 to 332
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major = (((r >> 2) & MASK(3)) << 5) |( (( (g >> 3) & MASK(3)) << 2 ) )| (((b >> 3) & MASK(2)));
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@ -526,9 +536,14 @@ static qboolean GL_UploadTexture( image_t *tex, rgbdata_t *pic )
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minor = MOVE_BIT(r,1,5) | MOVE_BIT(r,0,2) | MOVE_BIT(g,2,7) | MOVE_BIT(g,1,4) | MOVE_BIT(g,0,1) | MOVE_BIT(b,2,6)| MOVE_BIT(b,1,3)|MOVE_BIT(b,0,0);
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tex->pixels[0][i] = major << 8 | (minor & 0xFF);
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if( tex->transparent )
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{
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unsigned int alpha = (pic->buffer[i * 4 + 3] * 8 / 256) << (16 - 3);
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tex->pixels[0][i] = (tex->pixels[0][i] >> 3) | alpha;
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}
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}
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/// TODO: generate mipmaps
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#if 0
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16
r_local.h
16
r_local.h
@ -124,13 +124,27 @@ typedef struct vrect_s
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struct vrect_s *pnext;
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} vrect_t;
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#define COLOR_WHITE 0xFFFF
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#define SEPARATE_BLIT
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typedef struct
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{
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pixel_t *buffer; // invisible buffer
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pixel_t *colormap; // 256 * VID_GRADES size
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pixel_t *alphamap; // 256 * 256 translucency map
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//pixel_t *alphamap; // 256 * 256 translucency map
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#ifdef SEPARATE_BLIT
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pixel_t screen_minor[256];
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pixel_t screen_major[256];
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#else
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pixel_t screen[256*256];
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#endif
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byte addmap[256*256];
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byte modmap[256*256];
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pixel_t alphamap[8*256*256];
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pixel_t color;
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byte alpha;
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// maybe compute colormask for minor byte?
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int rendermode;
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int rowbytes; // may be > width if displayed in a window
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// can be negative for stupid dibs
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int width;
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26
r_triapi.c
26
r_triapi.c
@ -39,7 +39,7 @@ set rendermode
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*/
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void TriRenderMode( int mode )
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{
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ds.renderMode = mode;
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ds.renderMode = vid.rendermode = mode;
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#if 0
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switch( mode )
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{
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@ -130,9 +130,29 @@ _TriColor4f
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=============
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*/
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void _TriColor4f( float r, float g, float b, float a )
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void _TriColor4f( float rr, float gg, float bb, float aa )
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{
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//pglColor4f( r, g, b, a );
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unsigned short r,g,b;
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if( rr == 1 && gg == 1 && bb == 1 )
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{
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vid.color = COLOR_WHITE;
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return;
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}
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r = rr * 31, g = gg * 63, b = bb * 31;
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vid.alpha = aa * 7;
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if( vid.alpha > 7 )
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vid.alpha = 7;
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unsigned int major = (((r >> 2) & MASK(3)) << 5) |( (( (g >> 3) & MASK(3)) << 2 ) )| (((b >> 3) & MASK(2)));
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// save minor GBRGBRGB
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unsigned int minor = MOVE_BIT(r,1,5) | MOVE_BIT(r,0,2) | MOVE_BIT(g,2,7) | MOVE_BIT(g,1,4) | MOVE_BIT(g,0,1) | MOVE_BIT(b,2,6)| MOVE_BIT(b,1,3)|MOVE_BIT(b,0,0);
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vid.color = major << 8 | (minor & 0xFF);
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}
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/*
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@ -148,7 +168,7 @@ void TriColor4ub( byte r, byte g, byte b, byte a )
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ds.triRGBA[2] = b * (1.0f / 255.0f);
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ds.triRGBA[3] = a * (1.0f / 255.0f);
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_TriColor4f( ds.triRGBA[0], ds.triRGBA[1], ds.triRGBA[2], 1.0f );
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_TriColor4f( ds.triRGBA[0], ds.triRGBA[1], ds.triRGBA[2], ds.triRGBA[3] ); //1.0f );
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}
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/*
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