Mercurial > touhou
annotate pytouhou/ui/texture.pyx @ 426:5d7bb2fd74f7
Never keep texture on the host when it has been uploaded, and prevent them from being decoded again.
author | Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> |
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date | Tue, 16 Jul 2013 21:11:35 +0200 |
parents | d8630c086926 |
children | 40d5f3083ebc |
rev | line source |
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52
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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, |
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19 glGenTextures, glBindTexture, glTexImage2D, GL_TEXTURE_2D, GLuint, |
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20 glDeleteTextures) |
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21 |
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22 from pytouhou.lib.sdl import load_png, create_rgb_surface |
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23 from pytouhou.formats.thtx import Texture #TODO: perhaps define that elsewhere? |
14 | 24 |
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25 import os |
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26 |
14 | 27 |
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28 class TextureId(int): |
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29 def __del__(self): |
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30 cdef GLuint texture = self |
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31 glDeleteTextures(1, &texture) |
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32 |
158 | 33 |
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34 class TextureManager(object): |
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35 def __init__(self, loader=None): |
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36 self.loader = loader |
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38 |
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39 def load(self, anm_list): |
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40 for anm in anm_list: |
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41 if not hasattr(anm, 'texture'): |
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42 texture = decode_png(self.loader, anm.first_name, anm.secondary_name) |
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43 anm.texture = load_texture(texture) |
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44 |
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45 |
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46 cdef decode_png(loader, first_name, secondary_name): |
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47 image_file = load_png(loader.get_file(os.path.basename(first_name))) |
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48 width, height = image_file.width, image_file.height |
368 | 49 |
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50 # Support only 32 bits RGBA. Paletted surfaces are awful to work with. |
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51 #TODO: verify it doesn’t blow up on big-endian systems. |
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52 new_image = create_rgb_surface(width, height, 32, 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000) |
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53 new_image.blit(image_file) |
14 | 54 |
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55 if secondary_name: |
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56 alpha_file = load_png(loader.get_file(os.path.basename(secondary_name))) |
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57 assert (width == alpha_file.width and height == alpha_file.height) |
14 | 58 |
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59 new_alpha_file = create_rgb_surface(width, height, 24) |
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60 new_alpha_file.blit(alpha_file) |
14 | 61 |
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62 new_image.set_alpha(new_alpha_file) |
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63 |
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64 return Texture(width, height, -4, new_image.pixels) |
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65 |
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66 |
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67 cdef load_texture(thtx): |
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68 cdef GLuint texture |
15 | 69 |
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70 if thtx.fmt == 1: |
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71 format_ = GL_BGRA |
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72 type_ = GL_UNSIGNED_BYTE |
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73 composants = GL_RGBA |
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74 elif thtx.fmt == 3: |
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75 format_ = GL_RGB |
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76 type_ = GL_UNSIGNED_SHORT_5_6_5 |
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77 composants = GL_RGB |
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78 elif thtx.fmt == 5: |
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79 format_ = GL_BGRA |
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80 type_ = GL_UNSIGNED_SHORT_4_4_4_4_REV |
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81 composants = GL_RGBA |
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82 elif thtx.fmt == 7: |
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83 format_ = GL_LUMINANCE |
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84 type_ = GL_UNSIGNED_BYTE |
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85 composants = GL_LUMINANCE |
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86 elif thtx.fmt == -4: #XXX: non-standard |
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87 format_ = GL_RGBA |
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88 type_ = GL_UNSIGNED_BYTE |
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89 composants = GL_RGBA |
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90 else: |
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91 raise Exception('Unknown texture type') |
14 | 92 |
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93 glGenTextures(1, &texture) |
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94 glBindTexture(GL_TEXTURE_2D, texture) |
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95 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR) |
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96 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR) |
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97 |
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98 glTexImage2D(GL_TEXTURE_2D, 0, |
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99 composants, |
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100 thtx.width, thtx.height, |
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101 0, |
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102 format_, type_, |
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103 <char*>thtx.data) |
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104 |
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105 return TextureId(texture) |