lxdream 0.9.1| filename | src/pvr2/scene.c |
| changeset | 1140:7dc1c71ece76 |
| prev | 1139:9af81878480b |
| next | 1142:fd82bfba61c4 |
| author | nkeynes |
| date | Tue Oct 26 08:39:02 2010 +1000 (13 years ago) |
| permissions | -rw-r--r-- |
| last change | Implement fragment shader to support palette textures 'directly', and therefore avoid having to reload all palette textures whenever the palette changes. |
| file | annotate | diff | log | raw |
1.1 --- a/src/pvr2/scene.c Sun Oct 24 15:22:59 2010 +10001.2 +++ b/src/pvr2/scene.c Tue Oct 26 08:39:02 2010 +10001.3 @@ -226,6 +226,18 @@1.4 return poly;1.5 }1.7 +static float scene_get_palette_offset( uint32_t tex )1.8 +{1.9 + uint32_t fmt = (tex & PVR2_TEX_FORMAT_MASK);1.10 + if( fmt == PVR2_TEX_FORMAT_IDX4 ) {1.11 + return ((float)((tex & 0x07E00000) >> 17))/1024.0 + 0.0002;1.12 + } else if( fmt == PVR2_TEX_FORMAT_IDX8 ) {1.13 + return ((float)((tex & 0x06000000) >> 17))/1024.0 + 0.0002;1.14 + } else {1.15 + return -1.0;1.16 + }1.17 +}1.18 +1.19 /**1.20 * Decode a single PVR2 renderable vertex (opaque/trans/punch-out, but not shadow1.21 * volume)1.22 @@ -237,7 +249,7 @@1.23 * the normal vertex, half the vertex length for the modified vertex.1.24 */1.25 static void pvr2_decode_render_vertex( struct vertex_struct *vert, uint32_t poly1,1.26 - uint32_t poly2, uint32_t *pvr2_data,1.27 + uint32_t poly2, uint32_t tex, uint32_t *pvr2_data,1.28 int modify_offset )1.29 {1.30 gboolean force_alpha = !POLY2_ALPHA_ENABLE(poly2);1.31 @@ -279,16 +291,25 @@1.32 switch( POLY2_TEX_BLEND(poly2) ) {1.33 case 0:/* Convert replace => modulate by setting colour values to 1.0 */1.34 vert->rgba[0] = vert->rgba[1] = vert->rgba[2] = vert->rgba[3] = 1.0;1.35 + vert->tex_mode = 0.0;1.36 data.ival++; /* Skip the colour word */1.37 break;1.38 + case 2: /* Decal */1.39 + vert->tex_mode = 1.0;1.40 + unpack_bgra(*data.ival++, vert->rgba);1.41 + break;1.42 case 1:1.43 force_alpha = TRUE;1.44 /* fall-through */1.45 - default: /* Can't handle decal this way */1.46 + default:1.47 + vert->tex_mode = 0.0;1.48 unpack_bgra(*data.ival++, vert->rgba);1.49 break;1.50 }1.51 + vert->r = scene_get_palette_offset(tex);1.52 } else {1.53 + vert->tex_mode = 2.0;1.54 + vert->r = -1.0;1.55 unpack_bgra(*data.ival++, vert->rgba);1.56 }1.58 @@ -357,6 +378,8 @@1.59 result[i].z = rz;1.60 result[i].u = input[1].u + (t*tu) + (s*su);1.61 result[i].v = input[1].v + (t*tv) + (s*sv);1.62 + result[i].r = input[1].r; /* Last two components are flat */1.63 + result[i].tex_mode = input[1].tex_mode;1.65 if( is_solid_shaded ) {1.66 memcpy( result->rgba, input[2].rgba, sizeof(result->rgba) );1.67 @@ -503,6 +526,8 @@1.68 dest->z = src->z;1.69 dest->u = src->u;1.70 dest->v = src->v;1.71 + dest->r = src->r;1.72 + dest->tex_mode = src->tex_mode;1.73 dest->rgba[0] = src->rgba[0] * scene_shadow_intensity;1.74 dest->rgba[1] = src->rgba[1] * scene_shadow_intensity;1.75 dest->rgba[2] = src->rgba[2] * scene_shadow_intensity;1.76 @@ -531,7 +556,7 @@1.77 assert( poly != NULL );1.78 assert( pvr2_scene.vertex_index + poly->vertex_count <= pvr2_scene.vertex_count );1.79 for( i=0; i<poly->vertex_count; i++ ) {1.80 - pvr2_decode_render_vertex( &pvr2_scene.vertex_array[pvr2_scene.vertex_index++], context[0], context[1], ptr, 0 );1.81 + pvr2_decode_render_vertex( &pvr2_scene.vertex_array[pvr2_scene.vertex_index++], context[0], context[1], context[2], ptr, 0 );1.82 ptr += vertex_length;1.83 }1.84 if( is_modified ) {1.85 @@ -541,7 +566,7 @@1.86 int mod_offset = (vertex_length - 3)>>1;1.87 ptr = &pvr2_scene.pvr2_pbuf[poly_idx] + 5;1.88 for( i=0; i<poly->vertex_count; i++ ) {1.89 - pvr2_decode_render_vertex( &pvr2_scene.vertex_array[pvr2_scene.vertex_index++], context[0], context[3], ptr, mod_offset );1.90 + pvr2_decode_render_vertex( &pvr2_scene.vertex_array[pvr2_scene.vertex_index++], context[0], context[3], context[4], ptr, mod_offset );1.91 ptr += vertex_length;1.92 }1.93 } else {1.94 @@ -572,7 +597,7 @@1.95 ptr += (is_modified == SHADOW_FULL ? 5 : 3 );1.96 poly->vertex_index = pvr2_scene.vertex_index;1.97 for( i=0; i<4; i++ ) {1.98 - pvr2_decode_render_vertex( &quad[i], context[0], context[1], ptr, 0 );1.99 + pvr2_decode_render_vertex( &quad[i], context[0], context[1], context[2], ptr, 0 );1.100 ptr += vertex_length;1.101 }1.102 scene_compute_vertexes( &quad[3], 1, &quad[0], !POLY1_GOURAUD_SHADED(context[0]) );1.103 @@ -589,7 +614,7 @@1.104 int mod_offset = (vertex_length - 3)>>1;1.105 ptr = &pvr2_scene.pvr2_pbuf[poly_idx] + 5;1.106 for( i=0; i<4; i++ ) {1.107 - pvr2_decode_render_vertex( &quad[4], context[0], context[3], ptr, mod_offset );1.108 + pvr2_decode_render_vertex( &quad[4], context[0], context[3], context[4], ptr, mod_offset );1.109 ptr += vertex_length;1.110 }1.111 scene_compute_vertexes( &quad[3], 1, &quad[0], !POLY1_GOURAUD_SHADED(context[0]) );1.112 @@ -759,7 +784,7 @@1.113 struct vertex_struct base_vertexes[3];1.114 uint32_t *ptr = context + context_length;1.115 for( i=0; i<3; i++ ) {1.116 - pvr2_decode_render_vertex( &base_vertexes[i], context[0], context[1],1.117 + pvr2_decode_render_vertex( &base_vertexes[i], context[0], context[1], context[2],1.118 ptr, 0 );1.119 ptr += vertex_length;1.120 }1.121 @@ -774,7 +799,7 @@1.122 int mod_offset = (vertex_length - 3)>>1;1.123 ptr = context + context_length;1.124 for( i=0; i<3; i++ ) {1.125 - pvr2_decode_render_vertex( &base_vertexes[i], context[0], context[3],1.126 + pvr2_decode_render_vertex( &base_vertexes[i], context[0], context[3], context[4],1.127 ptr, mod_offset );1.128 ptr += vertex_length;1.129 }
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