diff --git a/draw.h b/draw.h index 699252a..76e323a 100644 --- a/draw.h +++ b/draw.h @@ -178,31 +178,40 @@ static INLINE void draw_quadstrip_colored(const ps1bsp_vertex_t *vertices, const } } -static INLINE void draw_triangle_textured(STVECTOR *verts, u_short tpage, u_long *ot) +static INLINE void draw_triangle_textured(const ps1bsp_vertex_t *vertices, const ps1bsp_polyvertex_t *polyVerts, u_short tpage, u_long *ot) { - // Draw a single textured triangle - const STVECTOR *v0 = &verts[0]; - const STVECTOR *v1 = &verts[1]; - const STVECTOR *v2 = &verts[2]; + const ps1bsp_polyvertex_t *v0, *v1, *v2; - // Naively draw the triangle with GTE, nothing special or optimized about this - gte_ldv3(v0, v1, v2); + v0 = &polyVerts[0]; + v1 = &polyVerts[1]; + v2 = &polyVerts[2]; + + // Transform the three vertices + gte_ldv3(&vertices[v0->index], &vertices[v1->index], &vertices[v2->index]); gte_rtpt(); // Rotation, translation, perspective projection // Draw a gouraud shaded textured triangle POLY_GT3 *poly = (POLY_GT3*)mem_prim(sizeof(POLY_GT3)); - setPolyGT3(poly); - gte_stsxy3_gt3(poly); - // Texture UVs - setUV3(poly, v0->u, v0->v, v1->u, v1->v, v2->u, v2->v); + // Fill out the quad's data fields in struct order, to optimize data access + // First vertex and texture CLUT + setColorFast(&poly->r0, &v0->r); + setUVFast(&poly->u0, &v0->u); + gte_stsxy0(&poly->x0); poly->clut = quake_clut; + + // Second vertex and texture page + setColorFast(&poly->r1, &v1->r); + gte_stsxy1(&poly->x1); + setUVFast(&poly->u1, &v1->u); poly->tpage = tpage; - poly->r0 = poly->g0 = poly->b0 = (uint8_t)v0->pad; - poly->r1 = poly->g1 = poly->b1 = (uint8_t)v1->pad; - poly->r2 = poly->g2 = poly->b2 = (uint8_t)v2->pad; + // Third vertex + setColorFast(&poly->r2, &v2->r); + gte_stsxy2(&poly->x2); + setUVFast(&poly->u2, &v2->u); + setPolyGT3(poly); addPrim(ot, poly); ++polyCount; } diff --git a/world.c b/world.c index e3a4fc4..29b6e3b 100644 --- a/world.c +++ b/world.c @@ -147,7 +147,15 @@ static void world_drawface_textured(const world_t *world, const ps1bsp_face_t *f for (u_char polyIdx = 0; polyIdx < face->numPolygons; ++polyIdx, ++poly) { const ps1bsp_polyvertex_t *polyVertices = &world->polyVertices[poly->firstPolyVertex]; - draw_quadstrip_textured(world->vertices, polyVertices, poly->numPolyVertices, texture->tpage, ot); + switch (poly->numPolyVertices) + { + case 3: + draw_triangle_textured(world->vertices, polyVertices, texture->tpage, ot); + break; + default: + draw_quadstrip_textured(world->vertices, polyVertices, poly->numPolyVertices, texture->tpage, ot); + break; + } } } }