shithub: libgraphics

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load XRGB32 textures.

--- a/render.c

+++ b/render.c

@@ -190,9 +190,9 @@

 	if(!isvisible(t[0][0].p) && !isvisible(t[0][1].p) && !isvisible(t[0][2].p))

 		return 0;

-	memset(&V, 0, sizeof V);

-	memset(&D, 0, sizeof D);

-	/* initialize with the original triangle */

+//	memset(&V, 0, sizeof V);

+//	memset(&D, 0, sizeof D);

+//	/* initialize with the original triangle */

 //	for(i = 0; i < 3; i++)

 //		addvert(&V, t[0][i]);

 //

@@ -374,7 +374,7 @@

 			/* lerp z⁻¹ and get actual z */

 			z = t[0].p.w*bc.x + t[1].p.w*bc.y + t[2].p.w*bc.z;

-			z = 1.0/(z < 1e-6? 1e-6: z);

+			z = 1.0/(z < 1e-5? 1e-5: z);

 			/* lerp attribute and dissolve perspective */

 //			t[0].c = mulpt3(t[0].c, bc.x*z);

@@ -381,7 +381,6 @@

 //			t[1].c = mulpt3(t[1].c, bc.y*z);

 //			t[2].c = mulpt3(t[2].c, bc.z*z);

-			cbuf[0] = 0xFF;

 			if((t[0].uv.w + t[1].uv.w + t[2].uv.w) != 0){

 				tt₂.p0 = mulpt2(t[0].uv, bc.x*z);

 				tt₂.p1 = mulpt2(t[1].uv, bc.y*z);

@@ -393,13 +392,19 @@

 				switch(params->modeltex->chan){

 				case RGB24:

 					unloadmemimage(params->modeltex, rectaddpt(UR, tp), cbuf+1, sizeof cbuf - 1);

+					cbuf[0] = 0xFF;

 					break;

 				case RGBA32:

 					unloadmemimage(params->modeltex, rectaddpt(UR, tp), cbuf, sizeof cbuf);

 					break;

+				case XRGB32:

+					unloadmemimage(params->modeltex, rectaddpt(UR, tp), cbuf, sizeof cbuf);

+					memmove(cbuf+1, cbuf, 3);

+					cbuf[0] = 0xFF;

+					break;

 				}

 			}else

-				memset(cbuf+1, 0xFF, sizeof cbuf - 1);

+				memset(cbuf, 0xFF, sizeof cbuf);

 			fsp.p = p;

 			fsp.bc = bc;