add renderer

isp_tsp_parameter.py

@@ -0,0 +1,170 @@
+from dataclasses import dataclass
+from functools import partial
+import struct
+
+@dataclass
+class IspTspInstructionWordMV:
+    volume_instruction: int
+    culling_mode: int
+
+    def __init__(self, value):
+        assert (value & 0x7ffffff) == 0
+        self.volume_instruction = (value >> 29) & 0b111
+        self.culling_mode = (value >> 27) & 0b11
+
+@dataclass
+class IspTspInstructionWord:
+    depth_compare_mode: int
+    culling_mode: int
+    z_write_disable: int
+    texture: int
+    offset: int
+    gouraud_shading: int
+    _16bit_uv: int
+    cache_bypass: int
+    dcalc_ctrl: int
+
+    def __init__(self, value):
+        assert (value & 0xfffff) == 0
+        self.depth_compare_mode = (value >> 29) & 0b111
+        self.culling_mode = (value >> 27) & 0b11
+        self.z_write_disable = (value >> 26) & 1
+        self.texture = (value >> 25) & 1
+        self.offset = (value >> 24) & 1
+        self.gouraud_shading = (value >> 23) & 1
+        self._16bit_uv = (value >> 22) & 1
+        self.cache_bypass = (value >> 21) & 1
+        self.dcalc_ctrl = (value >> 20) & 1
+
+@dataclass
+class TspInstructionWord:
+    src_alpha_instr: int
+    dst_alpha_instr: int
+    src_select: int
+    dst_select: int
+    fog_control: int
+    color_clamp: int
+    use_alpha: int
+    ignore_texture_alpha: int
+    flip_uv: int
+    clamp_uv: int
+    filter_mode: int
+    super_sample_texture: int
+    mip_map_d_adjust: int
+    texture_shading_instruction: int
+    texture_u_size: int
+    texture_v_size: int
+
+    def __init__(self, value):
+        self.src_alpha_instr = (value >> 29) & 0b111
+        self.dst_alpha_instr = (value >> 26) & 0b111
+        self.src_select = (value >> 25) & 1
+        self.dst_select = (value >> 24) & 1
+        self.fog_control = (value >> 22) & 0b11
+        self.color_clamp = (value >> 21) & 1
+        self.use_alpha = (value >> 20) & 1
+        self.ignore_texture_alpha = (value >> 19) & 1
+        self.flip_uv = (value >> 17) & 0b11
+        self.clamp_uv = (value >> 15) & 0b11
+        self.filter_mode = (value >> 13) & 0b11
+        self.super_sample_texture = (value >> 12) & 1
+        self.mip_map_d_adjust = (value >> 8) & 0b1111
+        self.texture_shading_instruction = (value >> 6) & 0b11
+        self.texture_u_size = (value >> 3) & 0b111
+        self.texture_v_size = (value >> 0) & 0b111
+
+@dataclass
+class TextureControlWord:
+    mip_mapped: int
+    vq_compressed: int
+    pixel_format: int
+    scan_order: int
+    stride_select: int
+    texture_address: int
+
+    def __init__(self, value):
+        assert (value >> 21) & 0b1111 == 0
+
+        self.mip_mapped = (value >> 31) & 1
+        self.vq_compressed = (value >> 30) & 1
+        self.pixel_format = (value >> 27) & 0b111
+        self.scan_order = (value >> 26) & 1
+        self.stride_select = (value >> 25) & 1
+        self.texture_address = ((value >> 0) & 0x1fffff) * 8
+
+@dataclass
+class Vertex:
+    x: float
+    y: float
+    z: float
+    attributes: list
+
+@dataclass
+class ISPTSPParameter:
+    isp_tsp_instruction_word: IspTspInstructionWord
+    tsp_instruction_word: TspInstructionWord
+    texture_control_word: TextureControlWord
+    vertices: list[Vertex]
+
+@dataclass
+class ISPTSPParameterMV:
+    isp_tsp_instruction_word: IspTspInstructionWord
+    vertices: list[Vertex]
+
+def expected_skip_size(isp_tsp):
+    pass
+
+def parse_parameter(mem, offset, skip, tag_offset, vertex_count, modifier_volume):
+    assert skip >= 0, skip
+    skip = (skip + 3) # size of one vertex
+
+    params = []
+
+    def unpack(i, t):
+        i_offset = offset + i * 4
+        value, = struct.unpack("<" + t, mem[i_offset:i_offset + 4])
+        return value
+
+    unpack_int = partial(unpack, t="I")
+    unpack_float = partial(unpack, t="f")
+
+    if modifier_volume:
+        assert skip == 3, skip
+        parameter = ISPTSPParameterMV(
+            IspTspInstructionWordMV(unpack_int(0)),
+            vertices=[]
+        )
+        value1 = unpack_int(1)
+        assert value1 == 0, value1
+        value2 = unpack_int(2)
+        assert value2 == 0, value2
+    else:
+        parameter = ISPTSPParameter(
+            IspTspInstructionWord(unpack_int(0)),
+            TspInstructionWord(unpack_int(1)),
+            TextureControlWord(unpack_int(2)),
+            vertices=[]
+        )
+
+
+    assert tag_offset == 0, tag_offset # FIXME
+
+    i = 3
+    for _ in range(vertex_count):
+        vertex = Vertex(
+            x = unpack_float(i + 0),
+            y = unpack_float(i + 1),
+            z = unpack_float(i + 2),
+            attributes=[]
+        )
+
+        j = 3
+        while j < skip:
+            vertex.attributes.append(unpack_int(i + j))
+            j += 1
+
+        parameter.vertices.append(vertex)
+
+        i += skip
+
+    return offset + i * 4, parameter

main.py

@@ -1,9 +1,17 @@
-from pprint import pprint
+import os
+os.environ['PYGAME_HIDE_SUPPORT_PROMPT'] = "hide"
+import textwrap
+from pprint import pprint, pformat
 import sys
+import pygame
+from functools import partial
+from itertools import starmap
+import time
 
 from holly import decode_holly
 from region_array import decode_region_array_entries
 from object_list import *
+from isp_tsp_parameter import parse_parameter
 
 texture_memory_filename = sys.argv[1]
 holly_registers_filename = sys.argv[2]
@@ -20,28 +28,165 @@ assert (holly.REGION_BASE & 0b11) == 0, holly.REGION_BASE
 
 region_array_entries = decode_region_array_entries(texture_memory, holly.REGION_BASE)
 
-for entry in region_array_entries:
-    lists = [
-        ("opaque_list_pointer", entry.opaque_list_pointer),
-        ("opaque_modifier_volume_list_pointer", entry.opaque_modifier_volume_list_pointer),
-        ("translucent_list_pointer", entry.translucent_list_pointer),
-        ("translucent_modifier_volume_list_pointer", entry.translucent_modifier_volume_list_pointer),
-        ("punch_through_list_pointer", entry.punch_through_list_pointer),
+DEBUG = False
+
+def walk_region_array(*, tile_callback=None, parameter_callback=None, flush_callback=None):
+    for entry in region_array_entries:
+        lists = [
+            ("opaque_list_pointer", entry.opaque_list_pointer),
+            ("opaque_modifier_volume_list_pointer", entry.opaque_modifier_volume_list_pointer),
+            ("translucent_list_pointer", entry.translucent_list_pointer),
+            ("translucent_modifier_volume_list_pointer", entry.translucent_modifier_volume_list_pointer),
+            ("punch_through_list_pointer", entry.punch_through_list_pointer),
+        ]
+        if tile_callback is not None:
+            tile_callback(entry.tile)
+
+        for list_type_name, list_pointer in lists:
+            if DEBUG:
+                print(" " * 4, end='')
+                print(list_type_name, list_pointer)
+            if list_pointer.empty_ptr:
+                continue
+            offset = list_pointer.pointer_to_object_list
+            while True:
+                ol_entry = decode_ol_entry(texture_memory, offset)
+                if DEBUG:
+                    print(" " * 8, end='')
+                    print(ol_entry)
+                offset += 4
+                if type(ol_entry) == triangle_array:
+                    param_offset = ol_entry.triangle_array_start
+                    for i in range(ol_entry.number_of_triangles + 1):
+                        modifier_volume = list_type_name in {"opaque_modifier_volume_list_pointer", "translucent_modifier_volume_list_pointer"}
+                        param_offset, parameter = parse_parameter(texture_memory, param_offset,
+                                                                  skip=ol_entry.skip,
+                                                                  tag_offset=0,
+                                                                  vertex_count=3,
+                                                                  modifier_volume=modifier_volume)
+
+                        if parameter_callback is not None:
+                            parameter_callback(entry.tile, list_type_name, list_pointer, ol_entry, parameter)
+
+                        if DEBUG:
+                            print(textwrap.indent(
+                                pformat(parameter),
+                                " " * 12
+                            ))
+
+                if type(ol_entry) == object_pointer_block_link:
+                    if ol_entry.end_of_list:
+                        break
+                    else:
+                        offset = ol_entry.next_pointer_block
+
+        if entry.tile.flush_accumulate == 0:
+            if flush_callback is not None:
+                flush_callback(entry.tile)
+
+def new_tile_surface():
+    surface = pygame.Surface((32, 32), pygame.SRCALPHA)
+    surface.fill((0, 0, 0, 0))
+    return surface
+
+x_tiles = (640 // 32)
+y_tiles = (480 // 32)
+
+color_buffer_list = [
+    new_tile_surface()
+    for _ in range(x_tiles * y_tiles)
+]
+
+depth_buffer_list = [
+    new_tile_surface()
+    for _ in range(x_tiles * y_tiles)
+]
+
+color_test_surface = new_tile_surface()
+depth_test_surface = new_tile_surface()
+
+def draw_background(tile):
+    t = holly.ISP_BACKGND_T
+    skip = (t >> 24) & 0b111
+    tag_address = ((t >> 3) & 0x1fffff) * 4
+
+    param_offset, parameter = parse_parameter(texture_memory, tag_address,
+                                              skip=skip,
+                                              tag_offset=0,
+                                              vertex_count=3,
+                                              modifier_volume=False)
+    assert len(parameter.vertices) == 3, parameter.vertices
+    assert len(parameter.vertices[0].attributes) >= 1, parameter
+    argb_color = parameter.vertices[0].attributes[0]
+    alpha = (argb_color >> 24) & 0xff
+    red = (argb_color >> 16) & 0xff
+    green = (argb_color >> 8) & 0xff
+    blue = (argb_color >> 0) & 0xff
+    color = (red, green, blue, alpha)
+
+    points = [(0, 0), (640, 0), (640, 480), (0, 480)]
+
+    tile_ix = tile.tile_y_position * x_tiles + tile.tile_x_position
+    color_buffer = color_buffer_list[tile_ix]
+    pygame.draw.polygon(color_buffer, color, points)
+
+def tile_callback(tile):
+    draw_background(tile)
+
+def flush_callback(tile, *, screen):
+    tile_ix = tile.tile_y_position * x_tiles + tile.tile_x_position
+    color_buffer = color_buffer_list[tile_ix]
+    screen.blit(color_buffer, (tile.tile_x_position * 32, tile.tile_y_position * 32))
+    pygame.display.flip()
+
+    time.sleep(0.1)
+
+def parameter_callback(tile, list_type_name, list_pointer, ol_entry, parameter):
+    # tile=RegionArrayTile(last_region=1, z_clear=0, flush_accumulate=0, tile_y_position=14, tile_x_position=19)
+    if list_type_name != "opaque_list_pointer":
+        return
+
+    left = tile.tile_x_position * 32
+    top = tile.tile_y_position * 32
+
+    tile_ix = tile.tile_y_position * x_tiles + tile.tile_x_position
+    color_buffer = color_buffer_list[tile_ix]
+
+    assert type(ol_entry) == triangle_array, ol_entry
+    assert len(parameter.vertices) == 3, parameter.vertices
+    assert len(parameter.vertices[0].attributes) >= 1, parameter
+
+    points = [
+        (vertex.x - left, vertex.y - top)
+        for vertex in parameter.vertices
     ]
-    print(entry.tile)
-    for list_type_name, list_pointer in lists:
-        print(" " * 4, end='')
-        print(list_type_name, list_pointer)
-        if list_pointer.empty_ptr:
-            continue
-        offset = list_pointer.pointer_to_object_list
-        while True:
-            ol_entry = decode_ol_entry(texture_memory, offset)
-            print(" " * 8, end='')
-            print(ol_entry)
-            offset += 4
-            if type(ol_entry) == object_pointer_block_link:
-                if ol_entry.end_of_list:
-                    break
-                else:
-                    offset = ol_entry.next_pointer_block
+
+    argb_color = parameter.vertices[0].attributes[0]
+    alpha = (argb_color >> 24) & 0xff
+    red = (argb_color >> 16) & 0xff
+    green = (argb_color >> 8) & 0xff
+    blue = (argb_color >> 0) & 0xff
+    color = (red, green, blue, alpha)
+
+    assert red > 10 or blue > 10 or green > 10, argb_color
+
+    pygame.draw.polygon(color_buffer, color, points)
+
+def draw():
+    pygame.init()
+    screen = pygame.display.set_mode((640, 480))
+
+    sys.stdin.readline()
+
+    walk_region_array(tile_callback=tile_callback,
+                      parameter_callback=parameter_callback,
+                      flush_callback=partial(flush_callback, screen=screen))
+
+    while True:
+        for event in pygame.event.get():
+            if event.type == pygame.QUIT:
+                break
+
+    pygame.quit()
+
+draw()