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annotate pytouhou/ui/opengl/texture.pyx @ 792:11bc22bad1bf

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python: Replace the image crate with png We weren’t using any of its features anyway, so the png crate is exactly what we need, without the many heavy dependencies of image. https://github.com/image-rs/image-png/pull/670 will eventually make it even faster to build.
author Link Mauve <linkmauve@linkmauve.fr>
date Sat, 17 Jan 2026 22:22:25 +0100
parents 7e940ebeb5fd
children
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52
ab826bc29aa2 Add some documentation, GPLv3 headers, README and COPYING file.
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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
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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, GL_UNSIGNED_SHORT_4_4_4_4,
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19 glGenTextures, glBindTexture, glTexImage2D, GL_TEXTURE_2D, GLuint,
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20 glPushDebugGroup, GL_DEBUG_SOURCE_APPLICATION, glPopDebugGroup)
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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 from .backend cimport use_debug_group
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28 import os
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30 from pytouhou.utils.helpers import get_logger
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31 logger = get_logger(__name__)
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34 cdef class TextureManager:
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35 def __init__(self, loader=None, renderer=None, texture_class=None):
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36 self.loader = loader
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37 self.renderer = renderer
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38 self.texture_class = texture_class
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41 cdef bint load(self, dict anms) except True:
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42 if use_debug_group:
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43 glPushDebugGroup(GL_DEBUG_SOURCE_APPLICATION, 0, -1, "Texture loading")
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45 for anm in sorted(anms.values(), key=is_ascii):
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46 if use_debug_group:
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47 glPushDebugGroup(GL_DEBUG_SOURCE_APPLICATION, 0, -1, "Loading textures from ANM")
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48
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49 for entry in anm:
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50 if entry.texture is None:
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51 texture = decode_png(self.loader, entry.first_name, entry.secondary_name)
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52 elif not isinstance(entry.texture, self.texture_class):
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53 texture = entry.texture
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54 entry.texture = self.texture_class(load_texture(texture), self.renderer)
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55
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56 if use_debug_group:
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57 glPopDebugGroup()
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58 anms.clear()
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59
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60 if use_debug_group:
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61 glPopDebugGroup()
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64 def is_ascii(anm):
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65 return anm[0].first_name.endswith('ascii.png')
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66
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67
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68 cdef class FontManager:
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69 def __init__(self, fontname, fontsize=16, renderer=None, texture_class=None):
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70 self.font = Font(fontname, fontsize)
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71 self.renderer = renderer
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72 self.texture_class = texture_class
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73
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74
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75 cdef bint load(self, dict labels) except True:
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76 cdef NativeText label
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77
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78 if use_debug_group:
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79 glPushDebugGroup(GL_DEBUG_SOURCE_APPLICATION, 0, -1, "Text rendering")
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81 for i, label in labels.items():
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82 if label.texture is None:
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83 try:
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84 surface = self.font.render(label.text)
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85 except SDLError as e:
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86 logger.error(u'Rendering of label “%s” failed: %s', label.text, e)
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87 del labels[i] # Prevents it from retrying to render.
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88 continue
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89
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90 label.width, label.height = surface.surface.w, surface.surface.h
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91
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92 if label.align == 'center':
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93 label.x -= label.width // 2
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94 elif label.align == 'right':
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95 label.x -= label.width
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96 else:
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97 assert label.align == 'left'
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98
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99 texture = Texture(label.width, label.height, -4, surface.pixels)
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100 label.texture = self.texture_class(load_texture(texture), self.renderer)
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101
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102 if use_debug_group:
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103 glPopDebugGroup()
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105
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106 cdef decode_png(loader, first_name, secondary_name):
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107 if secondary_name is not None:
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108 image = loader.get_image_with_alpha(first_name, secondary_name)
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109 else:
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110 image = loader.get_image(first_name)
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111 width, height = image.dimensions
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112 return Texture(width, height, -4, image.pixels)
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114
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115 cdef GLuint load_texture(thtx) except? 65535:
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116 cdef GLuint texture
515
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117 cdef long fmt = thtx.fmt
15
07fba4e1da65 Refactor
Thibaut Girka <thib@sitedethib.com>
parents: 14
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118
515
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119 if fmt == 1:
559
1be60813f7cb Get OpenGL ES 2.0 to work thanks to libepoxy. PCB textures will need swizzle in the shaders since BGRA isn’t natively supported on GLES.
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120 #format_ = GL_BGRA
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parents: 525
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121 format_ = GL_RGBA #XXX: should be GL_BGRA
426
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122 type_ = GL_UNSIGNED_BYTE
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123 composants = GL_RGBA
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124 elif fmt == 3:
426
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125 format_ = GL_RGB
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126 type_ = GL_UNSIGNED_SHORT_5_6_5
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127 composants = GL_RGB
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128 elif fmt == 5:
559
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Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 525
diff changeset
129 #format_ = GL_BGRA
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Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 525
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130 format_ = GL_RGBA #XXX: should be GL_BGRA
1be60813f7cb Get OpenGL ES 2.0 to work thanks to libepoxy. PCB textures will need swizzle in the shaders since BGRA isn’t natively supported on GLES.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 525
diff changeset
131 #type_ = GL_UNSIGNED_SHORT_4_4_4_4_REV
1be60813f7cb Get OpenGL ES 2.0 to work thanks to libepoxy. PCB textures will need swizzle in the shaders since BGRA isn’t natively supported on GLES.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 525
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132 type_ = GL_UNSIGNED_SHORT_4_4_4_4 #XXX: should be GL_UNSIGNED_SHORT_4_4_4_4_REV
426
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133 composants = GL_RGBA
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134 elif fmt == 7:
426
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135 format_ = GL_LUMINANCE
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136 type_ = GL_UNSIGNED_BYTE
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137 composants = GL_LUMINANCE
515
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138 elif fmt == -4: #XXX: non-standard
426
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139 format_ = GL_RGBA
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140 type_ = GL_UNSIGNED_BYTE
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141 composants = GL_RGBA
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142 else:
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143 raise Exception('Unknown texture type')
14
07a7f28c8aaa Minor refactoring
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
144
426
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145 glGenTextures(1, &texture)
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146 glBindTexture(GL_TEXTURE_2D, texture)
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147 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
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148 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
149
426
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150 glTexImage2D(GL_TEXTURE_2D, 0,
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parents: 423
diff changeset
151 composants,
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diff changeset
152 thtx.width, thtx.height,
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diff changeset
153 0,
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diff changeset
154 format_, type_,
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parents: 423
diff changeset
155 <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
156
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
157 return texture