Mercurial > touhou

annotate pytouhou/ui/renderer.pyx @ 306:52d791bb7c32

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Rename a few attributes/methods to make a little more sense.
author Thibaut Girka <thib@sitedethib.com>
date Tue, 13 Mar 2012 19:18:14 +0100
parents f3099ebf4f61
children 74471afbac37
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
222
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
1 # -*- encoding: utf-8 -*-
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
2 ##
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
3 ## Copyright (C) 2011 Thibaut Girka <thib@sitedethib.com>
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
4 ##
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
5 ## This program is free software; you can redistribute it and/or modify
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
6 ## it under the terms of the GNU General Public License as published
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
7 ## by the Free Software Foundation; version 3 only.
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
8 ##
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
9 ## This program is distributed in the hope that it will be useful,
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
10 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
11 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
12 ## GNU General Public License for more details.
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
13 ##
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
14
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
15 from libc.stdlib cimport malloc, free
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
16
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
17 import ctypes
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
18
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
19 from struct import pack
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
20
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
21 from pyglet.gl import *
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
22
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
23 from .sprite cimport get_sprite_rendering_data
223
98c64ffcbdff Make pytouhou.ui.{background,texture} Cython modules as they are only used by Cython modules.
Thibaut Girka <thib@sitedethib.com>
parents: 222
diff changeset
24 from .texture cimport TextureManager
222
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
25
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
26
301
6f1ca1cb5238 Avoid segfaults in the unlikely case a huge number of sprites is rendered.
Thibaut Girka <thib@sitedethib.com>
parents: 245
diff changeset
27 MAX_ELEMENTS = 640*4*3
222
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
28
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
29
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
30 cdef class Renderer:
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
31 def __cinit__(self):
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
32 # Allocate buffers
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
33 self.vertex_buffer = <Vertex*> malloc(MAX_ELEMENTS * sizeof(Vertex))
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
34
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
35
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
36 def __dealloc__(self):
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
37 free(self.vertex_buffer)
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
38
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
39
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
40 def __init__(self, resource_loader):
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
41 self.texture_manager = TextureManager(resource_loader)
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
42
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
43
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
44 cpdef render_elements(self, elements):
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
45 cdef unsigned short nb_vertices = 0
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
46
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
47 indices_by_texture = {}
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
48
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
49 for element in elements:
301
6f1ca1cb5238 Avoid segfaults in the unlikely case a huge number of sprites is rendered.
Thibaut Girka <thib@sitedethib.com>
parents: 245
diff changeset
50 if nb_vertices >= MAX_ELEMENTS - 4:
6f1ca1cb5238 Avoid segfaults in the unlikely case a huge number of sprites is rendered.
Thibaut Girka <thib@sitedethib.com>
parents: 245
diff changeset
51 break
6f1ca1cb5238 Avoid segfaults in the unlikely case a huge number of sprites is rendered.
Thibaut Girka <thib@sitedethib.com>
parents: 245
diff changeset
52
304
f3099ebf4f61 Update attribute names to reflect the actual interface.
Thibaut Girka <thib@sitedethib.com>
parents: 301
diff changeset
53 sprite = element.sprite
245
d3ba32a9096e Implement ANM0 instruction 29 and fix 24
Thibaut Girka <thib@sitedethib.com>
parents: 223
diff changeset
54 if sprite and sprite.visible:
222
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
55 ox, oy = element.x, element.y
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
56 key, (vertices, uvs, colors) = get_sprite_rendering_data(sprite)
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
57 rec = indices_by_texture.setdefault(key, [])
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
58
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
59 # Pack data in buffer
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
60 (x1, y1, z1), (x2, y2, z2), (x3, y3, z3), (x4, y4, z4) = vertices
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
61 r1, g1, b1, a1, r2, g2, b2, a2, r3, g3, b3, a3, r4, g4, b4, a4 = colors
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
62 u1, v1, u2, v2, u3, v3, u4, v4 = uvs
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
63 self.vertex_buffer[nb_vertices] = Vertex(x1 + ox, y1 + oy, z1, u1, v1, r1, g1, b1, a1)
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
64 self.vertex_buffer[nb_vertices+1] = Vertex(x2 + ox, y2 + oy, z2, u2, v2, r2, g2, b2, a2)
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
65 self.vertex_buffer[nb_vertices+2] = Vertex(x3 + ox, y3 + oy, z3, u3, v3, r3, g3, b3, a3)
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
66 self.vertex_buffer[nb_vertices+3] = Vertex(x4 + ox, y4 + oy, z4, u4, v4, r4, g4, b4, a4)
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
67
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
68 # Add indices
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
69 index = nb_vertices
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
70 rec.extend((index, index + 1, index + 2, index + 3))
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
71
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
72 nb_vertices += 4
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
73
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
74 for (texture_key, blendfunc), indices in indices_by_texture.items():
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
75 glVertexPointer(3, GL_INT, 24, <long> &self.vertex_buffer[0].x)
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
76 glTexCoordPointer(2, GL_FLOAT, 24, <long> &self.vertex_buffer[0].u)
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
77 glColorPointer(4, GL_UNSIGNED_BYTE, 24, <long> &self.vertex_buffer[0].r)
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
78
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
79 nb_indices = len(indices)
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
80 indices = pack(str(nb_indices) + 'H', *indices)
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
81 glBlendFunc(GL_SRC_ALPHA, (GL_ONE_MINUS_SRC_ALPHA, GL_ONE)[blendfunc])
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
82 glBindTexture(GL_TEXTURE_2D, self.texture_manager[texture_key].id)
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
83 glDrawElements(GL_QUADS, nb_indices, GL_UNSIGNED_SHORT, indices)
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
84
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
85
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
86 cpdef setup_camera(self, dx, dy, dz):
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
87 glMatrixMode(GL_MODELVIEW)
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
88 glLoadIdentity()
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
89 # Some explanations on the magic constants:
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
90 # 192. = 384. / 2. = width / 2.
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
91 # 224. = 448. / 2. = height / 2.
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
92 # 835.979370 = 224./math.tan(math.radians(15)) = (height/2.)/math.tan(math.radians(fov/2))
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
93 # This is so that objects on the (O, x, y) plane use pixel coordinates
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
94 gluLookAt(192., 224., - 835.979370 * dz,
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
95 192. + dx, 224. - dy, 0., 0., -1., 0.)
5cac48b328ad Refactor rendering code a bit.
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
96