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annotate pytouhou/ui/opengl/texture.pyx @ 544:b895ed2de71f

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Implement text rendering for the SDL backend.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Thu, 15 May 2014 02:56:08 +0200
parents 43ecf0f98f4d
children 1be60813f7cb
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1 # -*- encoding: utf-8 -*-
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2 ##
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3 ## Copyright (C) 2011 Thibaut Girka <thib@sitedethib.com>
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4 ##
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5 ## This program is free software; you can redistribute it and/or modify
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6 ## it under the terms of the GNU General Public License as published
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7 ## by the Free Software Foundation; version 3 only.
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8 ##
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9 ## This program is distributed in the hope that it will be useful,
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10 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 ## GNU General Public License for more details.
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13 ##
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14
423
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15 from pytouhou.lib.opengl cimport \
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16 (glTexParameteri, GL_TEXTURE_MIN_FILTER, GL_TEXTURE_MAG_FILTER,
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17 GL_LINEAR, GL_BGRA, GL_RGBA, GL_RGB, GL_LUMINANCE, GL_UNSIGNED_BYTE,
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18 GL_UNSIGNED_SHORT_5_6_5, GL_UNSIGNED_SHORT_4_4_4_4_REV,
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19 glGenTextures, glBindTexture, glTexImage2D, GL_TEXTURE_2D, GLuint)
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21 from pytouhou.lib.sdl cimport load_png, create_rgb_surface
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22 from pytouhou.lib.sdl import SDLError
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23 from pytouhou.formats.thtx import Texture #TODO: perhaps define that elsewhere?
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24 from pytouhou.game.text cimport NativeText
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26 import os
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28 from pytouhou.utils.helpers import get_logger
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29 logger = get_logger(__name__)
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32 cdef class TextureManager:
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33 def __init__(self, loader=None, renderer=None, texture_class=None):
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34 self.loader = loader
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35 self.renderer = renderer
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36 self.texture_class = texture_class
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38
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39 cdef void load(self, dict anms):
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40 for anm in sorted(anms.values(), key=is_ascii):
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41 for entry in anm:
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42 if entry.texture is None:
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43 texture = decode_png(self.loader, entry.first_name, entry.secondary_name)
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44 elif not isinstance(entry.texture, self.texture_class):
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45 texture = entry.texture
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46 entry.texture = self.texture_class(load_texture(texture), self.renderer)
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47 anms.clear()
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50 def is_ascii(anm):
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51 return anm[0].first_name.endswith('ascii.png')
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54 cdef class FontManager:
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55 def __init__(self, fontname, fontsize=16, renderer=None, texture_class=None):
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56 self.font = Font(fontname, fontsize)
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57 self.renderer = renderer
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58 self.texture_class = texture_class
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61 cdef void load(self, dict labels):
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62 cdef NativeText label
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63
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64 for i, label in labels.items():
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65 if label.texture is None:
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66 try:
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67 surface = self.font.render(label.text)
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68 except SDLError as e:
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69 logger.error(u'Rendering of label “%s” failed: %s', label.text, e)
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70 del labels[i] # Prevents it from retrying to render.
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71 continue
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72
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73 label.width, label.height = surface.surface.w, surface.surface.h
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74
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75 if label.align == 'center':
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76 label.x -= label.width // 2
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77 elif label.align == 'right':
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78 label.x -= label.width
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79 else:
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80 assert label.align == 'left'
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81
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82 texture = Texture(label.width, label.height, -4, surface.pixels)
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83 label.texture = self.texture_class(load_texture(texture), self.renderer)
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84
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85
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86 cdef decode_png(loader, first_name, secondary_name):
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87 image_file = load_png(loader.get_file(os.path.basename(first_name)))
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88 width, height = image_file.surface.w, image_file.surface.h
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89
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90 # Support only 32 bits RGBA. Paletted surfaces are awful to work with.
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91 #TODO: verify it doesn’t blow up on big-endian systems.
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92 new_image = create_rgb_surface(width, height, 32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000)
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93 new_image.blit(image_file)
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95 if secondary_name:
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96 alpha_file = load_png(loader.get_file(os.path.basename(secondary_name)))
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97 assert (width == alpha_file.surface.w and height == alpha_file.surface.h)
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99 new_alpha_file = create_rgb_surface(width, height, 24)
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100 new_alpha_file.blit(alpha_file)
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101
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102 new_image.set_alpha(new_alpha_file)
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104 return Texture(width, height, -4, new_image.pixels)
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105
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106
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107 cdef GLuint load_texture(thtx) except? 65535:
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108 cdef GLuint texture
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109 cdef long fmt = thtx.fmt
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110
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111 if fmt == 1:
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112 format_ = GL_BGRA
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113 type_ = GL_UNSIGNED_BYTE
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114 composants = GL_RGBA
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115 elif fmt == 3:
426
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parents: 423
diff changeset
116 format_ = GL_RGB
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117 type_ = GL_UNSIGNED_SHORT_5_6_5
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parents: 423
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118 composants = GL_RGB
515
b3193b43a86c Add an indirection layer for textures, to cope with drivers assigning them random names.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 513
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119 elif fmt == 5:
426
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parents: 423
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120 format_ = GL_BGRA
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parents: 423
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121 type_ = GL_UNSIGNED_SHORT_4_4_4_4_REV
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parents: 423
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122 composants = GL_RGBA
515
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parents: 513
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123 elif fmt == 7:
426
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parents: 423
diff changeset
124 format_ = GL_LUMINANCE
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parents: 423
diff changeset
125 type_ = GL_UNSIGNED_BYTE
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parents: 423
diff changeset
126 composants = GL_LUMINANCE
515
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parents: 513
diff changeset
127 elif fmt == -4: #XXX: non-standard
426
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parents: 423
diff changeset
128 format_ = GL_RGBA
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parents: 423
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129 type_ = GL_UNSIGNED_BYTE
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130 composants = GL_RGBA
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parents: 423
diff changeset
131 else:
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diff changeset
132 raise Exception('Unknown texture type')
14
07a7f28c8aaa Minor refactoring
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
133
426
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diff changeset
134 glGenTextures(1, &texture)
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parents: 423
diff changeset
135 glBindTexture(GL_TEXTURE_2D, texture)
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parents: 423
diff changeset
136 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
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parents: 423
diff changeset
137 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
16
66ce9bb440ac Refactor in order to support multiple textures
Thibaut Girka <thib@sitedethib.com>
parents: 15
diff changeset
138
426
5d7bb2fd74f7 Never keep texture on the host when it has been uploaded, and prevent them from being decoded again.
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parents: 423
diff changeset
139 glTexImage2D(GL_TEXTURE_2D, 0,
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parents: 423
diff changeset
140 composants,
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parents: 423
diff changeset
141 thtx.width, thtx.height,
5d7bb2fd74f7 Never keep texture on the host when it has been uploaded, and prevent them from being decoded again.
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parents: 423
diff changeset
142 0,
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parents: 423
diff changeset
143 format_, type_,
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parents: 423
diff changeset
144 <char*>thtx.data)
393
9e2cbb2c2c64 Implement THTX, uncompressed textures stored inside ANM files, and use it instead of pyglet’s own wrapper.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 392
diff changeset
145
505
bfea9e9a6845 Manage the texture-specific indices in the Texture, and some more renderer optimisations.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 504
diff changeset
146 return texture