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<title>Graphics/Gloss/Internals/Render/State.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# OPTIONS_HADDOCK hide #-}</span>
<a name="line-2"></a>
<a name="line-3"></a><span class='hs-comment'>-- | Rendering options</span>
<a name="line-4"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Gloss</span><span class='hs-varop'>.</span><span class='hs-conid'>Internals</span><span class='hs-varop'>.</span><span class='hs-conid'>Render</span><span class='hs-varop'>.</span><span class='hs-conid'>State</span>
<a name="line-5"></a> <span class='hs-layout'>(</span> <span class='hs-conid'>State</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span>
<a name="line-6"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>stateInit</span>
<a name="line-7"></a> <span class='hs-layout'>,</span> <span class='hs-conid'>Texture</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-8"></a><span class='hs-keyword'>where</span>
<a name="line-9"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Rendering</span><span class='hs-varop'>.</span><span class='hs-conid'>OpenGL</span><span class='hs-varop'>.</span><span class='hs-conid'>GL</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>GL</span>
<a name="line-10"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Foreign</span><span class='hs-varop'>.</span><span class='hs-conid'>ForeignPtr</span>
<a name="line-11"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Mem</span><span class='hs-varop'>.</span><span class='hs-conid'>StableName</span>
<a name="line-12"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Word</span>
<a name="line-13"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>IORef</span>
<a name="line-14"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Gloss</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Picture</span>
<a name="line-15"></a>
<a name="line-16"></a><a name="State"></a><span class='hs-comment'>-- | Render options settings</span>
<a name="line-17"></a><a name="State"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>State</span>
<a name="line-18"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>State</span>
<a name="line-19"></a> <span class='hs-layout'>{</span> <span class='hs-comment'>-- | Whether to use color</span>
<a name="line-20"></a> <span class='hs-varid'>stateColor</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>Bool</span>
<a name="line-21"></a>
<a name="line-22"></a> <span class='hs-comment'>-- | Whether to force wireframe mode only</span>
<a name="line-23"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>stateWireframe</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>Bool</span>
<a name="line-24"></a>
<a name="line-25"></a> <span class='hs-comment'>-- | Whether to use alpha blending</span>
<a name="line-26"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>stateBlendAlpha</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>Bool</span>
<a name="line-27"></a>
<a name="line-28"></a> <span class='hs-comment'>-- | Whether to use line smoothing</span>
<a name="line-29"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>stateLineSmooth</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-conid'>Bool</span>
<a name="line-30"></a>
<a name="line-31"></a> <span class='hs-comment'>-- | Cache of Textures that we've sent to OpenGL.</span>
<a name="line-32"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>stateTextures</span> <span class='hs-keyglyph'>::</span> <span class='hs-varop'>!</span><span class='hs-layout'>(</span><span class='hs-conid'>IORef</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>Texture</span><span class='hs-keyglyph'>]</span><span class='hs-layout'>)</span>
<a name="line-33"></a> <span class='hs-layout'>}</span>
<a name="line-34"></a>
<a name="line-35"></a>
<a name="line-36"></a><a name="Texture"></a><span class='hs-comment'>-- | A texture that we've sent to OpenGL.</span>
<a name="line-37"></a><a name="Texture"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Texture</span>
<a name="line-38"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>Texture</span>
<a name="line-39"></a> <span class='hs-layout'>{</span> <span class='hs-comment'>-- | Stable name derived from the `BitmapData` that the user gives us.</span>
<a name="line-40"></a> <span class='hs-varid'>texName</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>StableName</span> <span class='hs-conid'>BitmapData</span>
<a name="line-41"></a>
<a name="line-42"></a> <span class='hs-comment'>-- | Width of the image, in pixels.</span>
<a name="line-43"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>texWidth</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-44"></a>
<a name="line-45"></a> <span class='hs-comment'>-- | Height of the image, in pixels.</span>
<a name="line-46"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>texHeight</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int</span>
<a name="line-47"></a>
<a name="line-48"></a> <span class='hs-comment'>-- | Pointer to the Raw texture data.</span>
<a name="line-49"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>texData</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>ForeignPtr</span> <span class='hs-conid'>Word8</span>
<a name="line-50"></a>
<a name="line-51"></a> <span class='hs-comment'>-- | The OpenGL texture object.</span>
<a name="line-52"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>texObject</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GL</span><span class='hs-varop'>.</span><span class='hs-conid'>TextureObject</span>
<a name="line-53"></a>
<a name="line-54"></a> <span class='hs-comment'>-- | Whether we want to leave this in OpenGL texture memory between frames.</span>
<a name="line-55"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>texCacheMe</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-layout'>}</span>
<a name="line-56"></a>
<a name="line-57"></a>
<a name="line-58"></a><a name="stateInit"></a><span class='hs-comment'>-- | Default render options</span>
<a name="line-59"></a><span class='hs-definition'>stateInit</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-conid'>State</span>
<a name="line-60"></a><span class='hs-definition'>stateInit</span>
<a name="line-61"></a> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span> <span class='hs-varid'>textures</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>newIORef</span> <span class='hs-conid'>[]</span>
<a name="line-62"></a> <span class='hs-varid'>return</span> <span class='hs-conid'>State</span>
<a name="line-63"></a> <span class='hs-layout'>{</span> <span class='hs-varid'>stateColor</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-64"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>stateWireframe</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-65"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>stateBlendAlpha</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-66"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>stateLineSmooth</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-67"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>stateTextures</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>textures</span> <span class='hs-layout'>}</span>
<a name="line-68"></a>
<a name="line-69"></a>
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