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14 | |
14 | |
15 | package CFPlus::Texture; |
15 | package CFPlus::Texture; |
16 | |
16 | |
17 | use strict; |
17 | use strict; |
18 | |
18 | |
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19 | use List::Util qw(max min); |
19 | use CFPlus::OpenGL; |
20 | use CFPlus::OpenGL; |
20 | |
21 | |
21 | my %TEXTURES; |
22 | my %TEXTURES; |
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23 | my ($MAX_W, $MAX_H) = (4096, 4096); # maximum texture size attempted by this module |
22 | |
24 | |
23 | sub new { |
25 | sub new { |
24 | my ($class, %data) = @_; |
26 | my ($class, %data) = @_; |
25 | |
27 | |
26 | my $self = bless { |
28 | my $self = bless { |
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90 | sub upload { |
92 | sub upload { |
91 | my ($self) = @_; |
93 | my ($self) = @_; |
92 | |
94 | |
93 | return unless $GL_VERSION; |
95 | return unless $GL_VERSION; |
94 | |
96 | |
95 | my $data; |
97 | my ($tw, $th, $data); |
96 | |
98 | |
97 | if (exists $self->{data}) { |
99 | if (exists $self->{data}) { |
98 | $data = $self->{data}; |
100 | $data = $self->{data}; |
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101 | ($tw, $th) = @$self{qw(w h)}; |
99 | |
102 | |
100 | } elsif (exists $self->{render_cb}) { |
103 | } elsif (exists $self->{render_cb}) { |
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104 | ($tw, $th) = @$self{qw(w h)}; |
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105 | |
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106 | } else { |
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107 | ($self->{w}, $self->{h}, $data, my $internalformat, $self->{format}, $self->{type}) |
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108 | = CFPlus::load_image_inline $self->{image}; |
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109 | |
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110 | $self->{internalformat} ||= $internalformat; |
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111 | ($tw, $th) = @$self{qw(w h)}; |
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112 | } |
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113 | |
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114 | defined $data or $self->{render_cb} or die; # some sanity check |
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115 | |
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116 | $self->{minified} ||= [CFPlus::average $tw, $th, $data] |
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117 | if $self->{minify}; |
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118 | |
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119 | pad2pot $data, $tw, $th unless $GL_NPOT; |
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120 | $tw = min $MAX_W, $tw; |
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121 | $th = min $MAX_H, $th; |
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122 | |
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123 | # now further decrease texture size |
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124 | while (!texture_valid_2d $self->{internalformat}, $tw, $th, $self->{format}, $self->{type}) { |
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125 | # quarter the texture size |
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126 | $tw >>= 1; |
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127 | $th >>= 1; |
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128 | } |
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129 | |
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130 | my $render = $self->{render_cb} || $tw < $self->{w} || $th < $self->{h}; |
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131 | |
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132 | if ($render) { |
101 | glViewport 0, 0, $self->{w}, $self->{h}; |
133 | glViewport 0, 0, $tw, $th; |
102 | glMatrixMode GL_PROJECTION; |
134 | glMatrixMode GL_PROJECTION; |
103 | glLoadIdentity; |
135 | glLoadIdentity; |
104 | glOrtho 0, $self->{w}, 0, $self->{h}, -10000, 10000; |
136 | glOrtho 0, $self->{w}, 0, $self->{h}, -10000, 10000; |
105 | glMatrixMode GL_MODELVIEW; |
137 | glMatrixMode GL_MODELVIEW; |
106 | glLoadIdentity; |
138 | glLoadIdentity; |
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139 | |
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140 | if ($self->{render_cb}) { |
107 | $self->{render_cb}->($self, $self->{w}, $self->{h}); |
141 | $self->{render_cb}->($self, $self->{w}, $self->{h}); |
108 | |
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109 | } else { |
142 | } else { |
110 | ($self->{w}, $self->{h}, $data, my $internalformat, $self->{format}, $self->{type}) |
143 | glPixelZoom $tw / $self->{w}, $th / $self->{h}; |
111 | = CFPlus::load_image_inline $self->{image}; |
144 | glDrawPixels $self->{w}, $self->{h}, |
112 | |
145 | $self->{format}, |
113 | $self->{internalformat} ||= $internalformat; |
146 | $self->{type}, |
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147 | $data; |
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148 | glPixelZoom 1, 1; |
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149 | } |
114 | } |
150 | } |
115 | |
151 | |
116 | my ($tw, $th) = @$self{qw(w h)}; |
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117 | |
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118 | $self->{minified} ||= [CFPlus::average $tw, $th, $data] |
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119 | if $self->{minify}; |
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120 | |
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121 | pad2pot $data, $tw, $th unless $GL_NPOT; |
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122 | |
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123 | $self->{s} = $self->{w} / $tw; |
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124 | $self->{t} = $self->{h} / $th; |
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125 | |
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126 | $self->{name} ||= glGenTexture; |
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127 | |
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128 | glBindTexture GL_TEXTURE_2D, $self->{name}; |
152 | glBindTexture GL_TEXTURE_2D, $self->{name} ||= glGenTexture; |
129 | |
153 | |
130 | if ($self->{wrap}) { |
154 | if ($self->{wrap}) { |
131 | glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT; |
155 | glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT; |
132 | glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT; |
156 | glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT; |
133 | } else { |
157 | } else { |
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148 | glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR; |
172 | glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR; |
149 | } |
173 | } |
150 | |
174 | |
151 | glGetError; |
175 | glGetError; |
152 | |
176 | |
153 | if (defined $data) { |
177 | if ($render) { |
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178 | glCopyTexImage2D GL_TEXTURE_2D, 0, |
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179 | $self->{internalformat}, |
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180 | 0, 0, |
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181 | $tw, $th, |
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182 | 0; |
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183 | gl_check "copying to texture %dx%d if=%x", |
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184 | $tw, $th, $self->{internalformat}; |
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185 | } else { |
154 | glTexImage2D GL_TEXTURE_2D, 0, |
186 | glTexImage2D GL_TEXTURE_2D, 0, |
155 | $self->{internalformat}, |
187 | $self->{internalformat}, |
156 | $tw, $th, |
188 | $tw, $th, |
157 | 0, |
189 | 0, |
158 | $self->{format}, |
190 | $self->{format}, |
159 | $self->{type}, |
191 | $self->{type}, |
160 | $data; |
192 | $data; |
161 | gl_check "uploading texture %dx%d if=%x f=%x t=%x", |
193 | gl_check "uploading texture %dx%d if=%x f=%x t=%x", |
162 | $tw, $th, $self->{internalformat}, $self->{format}, $self->{type}; |
194 | $tw, $th, $self->{internalformat}, $self->{format}, $self->{type}; |
163 | } else { |
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164 | exists $self->{render_cb} or die; |
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165 | glCopyTexImage2D GL_TEXTURE_2D, 0, |
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166 | $self->{internalformat}, |
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167 | 0, 0, |
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168 | $tw, $th, |
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169 | 0; |
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170 | gl_check "copying to texture %dx%d if=%x", |
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171 | $tw, $th, $self->{internalformat}; |
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172 | } |
195 | } |
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196 | |
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197 | $self->{s} = min 1, $self->{w} / $tw; |
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198 | $self->{t} = min 1, $self->{h} / $th; |
173 | } |
199 | } |
174 | |
200 | |
175 | sub shutdown { |
201 | sub shutdown { |
176 | my ($self) = @_; |
202 | my ($self) = @_; |
177 | |
203 | |