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annotate pytouhou/ui/opengl/texture.pyx @ 581:cb8a443bc046

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Fix a compilation issue on Cython 0.20.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Sun, 07 Sep 2014 13:26:41 +0200
parents b8df946d394d
children 6e79756b7f42
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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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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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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 cimport load_png, create_rgb_surface
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23 from pytouhou.lib.sdl import SDLError
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24 from pytouhou.formats.thtx import Texture #TODO: perhaps define that elsewhere?
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25 from pytouhou.game.text cimport NativeText
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27 import os
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29 from pytouhou.utils.helpers import get_logger
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30 logger = get_logger(__name__)
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33 cdef class TextureManager:
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34 def __init__(self, loader=None, renderer=None, texture_class=None):
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35 self.loader = loader
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36 self.renderer = renderer
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37 self.texture_class = texture_class
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40 cdef void load(self, dict anms):
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41 glPushDebugGroup(GL_DEBUG_SOURCE_APPLICATION, 0, -1, "Texture loading")
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42 for anm in sorted(anms.values(), key=is_ascii):
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43 glPushDebugGroup(GL_DEBUG_SOURCE_APPLICATION, 0, -1, "Loading textures from ANM")
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44 for entry in anm:
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45 if entry.texture is None:
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46 texture = decode_png(self.loader, entry.first_name, entry.secondary_name)
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47 elif not isinstance(entry.texture, self.texture_class):
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48 texture = entry.texture
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49 entry.texture = self.texture_class(load_texture(texture), self.renderer)
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50 glPopDebugGroup()
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51 glPopDebugGroup()
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52 anms.clear()
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55 def is_ascii(anm):
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56 return anm[0].first_name.endswith('ascii.png')
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58
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59 cdef class FontManager:
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60 def __init__(self, fontname, fontsize=16, renderer=None, texture_class=None):
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61 self.font = Font(fontname, fontsize)
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62 self.renderer = renderer
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63 self.texture_class = texture_class
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65
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66 cdef void load(self, dict labels):
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67 cdef NativeText label
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68
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69 glPushDebugGroup(GL_DEBUG_SOURCE_APPLICATION, 0, -1, "Text rendering")
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70 for i, label in labels.items():
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71 if label.texture is None:
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72 try:
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73 surface = self.font.render(label.text)
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74 except SDLError as e:
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75 logger.error(u'Rendering of label “%s” failed: %s', label.text, e)
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76 del labels[i] # Prevents it from retrying to render.
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77 continue
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79 label.width, label.height = surface.surface.w, surface.surface.h
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80
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81 if label.align == 'center':
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82 label.x -= label.width // 2
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83 elif label.align == 'right':
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84 label.x -= label.width
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85 else:
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86 assert label.align == 'left'
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87
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88 texture = Texture(label.width, label.height, -4, surface.pixels)
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89 label.texture = self.texture_class(load_texture(texture), self.renderer)
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90 glPopDebugGroup()
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92
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93 cdef decode_png(loader, first_name, secondary_name):
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94 image_file = load_png(loader.get_file(os.path.basename(first_name)))
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95 width, height = image_file.surface.w, image_file.surface.h
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96
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97 # Support only 32 bits RGBA. Paletted surfaces are awful to work with.
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98 #TODO: verify it doesn’t blow up on big-endian systems.
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99 new_image = create_rgb_surface(width, height, 32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000)
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100 new_image.blit(image_file)
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102 if secondary_name:
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103 alpha_file = load_png(loader.get_file(os.path.basename(secondary_name)))
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104 assert (width == alpha_file.surface.w and height == alpha_file.surface.h)
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106 new_alpha_file = create_rgb_surface(width, height, 24)
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107 new_alpha_file.blit(alpha_file)
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108
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109 new_image.set_alpha(new_alpha_file)
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111 return Texture(width, height, -4, new_image.pixels)
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113
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114 cdef GLuint load_texture(thtx) except? 65535:
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115 cdef GLuint texture
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116 cdef long fmt = thtx.fmt
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117
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118 if fmt == 1:
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119 #format_ = GL_BGRA
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120 format_ = GL_RGBA #XXX: should be GL_BGRA
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121 type_ = GL_UNSIGNED_BYTE
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122 composants = GL_RGBA
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123 elif fmt == 3:
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124 format_ = GL_RGB
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125 type_ = GL_UNSIGNED_SHORT_5_6_5
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126 composants = GL_RGB
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127 elif fmt == 5:
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parents: 525
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128 #format_ = GL_BGRA
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Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 525
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129 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
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130 #type_ = GL_UNSIGNED_SHORT_4_4_4_4_REV
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Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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131 type_ = GL_UNSIGNED_SHORT_4_4_4_4 #XXX: should be GL_UNSIGNED_SHORT_4_4_4_4_REV
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132 composants = GL_RGBA
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133 elif fmt == 7:
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134 format_ = GL_LUMINANCE
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135 type_ = GL_UNSIGNED_BYTE
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136 composants = GL_LUMINANCE
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137 elif fmt == -4: #XXX: non-standard
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138 format_ = GL_RGBA
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139 type_ = GL_UNSIGNED_BYTE
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140 composants = GL_RGBA
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141 else:
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142 raise Exception('Unknown texture type')
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143
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144 glGenTextures(1, &texture)
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145 glBindTexture(GL_TEXTURE_2D, texture)
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146 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
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147 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
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148
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149 glTexImage2D(GL_TEXTURE_2D, 0,
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150 composants,
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151 thtx.width, thtx.height,
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152 0,
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153 format_, type_,
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154 <char*>thtx.data)
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155
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156 return texture