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@ -2778,6 +2778,12 @@ static const char vertex_shader[] = |
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" gl_FragColor.a = 1.0;\n" \
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" gl_FragColor = alpha * gl_FragColor;\n" |
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#define FRAGMENT_CONVERT_YUV \ |
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" gl_FragColor.r = y + 1.59602678 * v;\n" \
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" gl_FragColor.g = y - 0.39176229 * u - 0.81296764 * v;\n" \
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" gl_FragColor.b = y + 2.01723214 * u;\n" \
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" gl_FragColor.a = 1.0;\n" |
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static const char texture_fragment_shader_rgba[] = |
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"precision mediump float;\n" |
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"varying vec2 v_texcoord;\n" |
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@ -2790,6 +2796,52 @@ static const char texture_fragment_shader_rgba[] = |
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FRAGMENT_SHADER_EXIT |
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"}\n"; |
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static const char texture_fragment_shader_y_uv[] = |
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"precision mediump float;\n" |
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"uniform sampler2D tex;\n" |
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"uniform sampler2D tex1;\n" |
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"varying vec2 v_texcoord;\n" |
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FRAGMENT_SHADER_UNIFORMS |
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"void main() {\n" |
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FRAGMENT_SHADER_INIT |
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" float y = 1.16438356 * (texture2D(tex, v_texcoord).x - 0.0625);\n" |
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" float u = texture2D(tex1, v_texcoord).r - 0.5;\n" |
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" float v = texture2D(tex1, v_texcoord).g - 0.5;\n" |
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FRAGMENT_CONVERT_YUV |
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FRAGMENT_SHADER_EXIT |
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"}\n"; |
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static const char texture_fragment_shader_y_u_v[] = |
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"precision mediump float;\n" |
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"uniform sampler2D tex;\n" |
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"uniform sampler2D tex1;\n" |
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"uniform sampler2D tex2;\n" |
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"varying vec2 v_texcoord;\n" |
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FRAGMENT_SHADER_UNIFORMS |
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"void main() {\n" |
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FRAGMENT_SHADER_INIT |
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" float y = 1.16438356 * (texture2D(tex, v_texcoord).x - 0.0625);\n" |
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" float u = texture2D(tex1, v_texcoord).x - 0.5;\n" |
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" float v = texture2D(tex2, v_texcoord).x - 0.5;\n" |
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FRAGMENT_CONVERT_YUV |
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FRAGMENT_SHADER_EXIT |
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"}\n"; |
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static const char texture_fragment_shader_y_xuxv[] = |
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"precision mediump float;\n" |
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"uniform sampler2D tex;\n" |
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"uniform sampler2D tex1;\n" |
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"varying vec2 v_texcoord;\n" |
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FRAGMENT_SHADER_UNIFORMS |
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"void main() {\n" |
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FRAGMENT_SHADER_INIT |
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" float y = 1.16438356 * (texture2D(tex, v_texcoord).x - 0.0625);\n" |
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" float u = texture2D(tex1, v_texcoord).g - 0.5;\n" |
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" float v = texture2D(tex1, v_texcoord).a - 0.5;\n" |
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FRAGMENT_CONVERT_YUV |
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FRAGMENT_SHADER_EXIT |
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"}\n"; |
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static const char solid_fragment_shader[] = |
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"precision mediump float;\n" |
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"uniform vec4 color;\n" |
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@ -3149,6 +3201,15 @@ weston_compositor_init_gl(struct weston_compositor *ec) |
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if (weston_shader_init(&ec->texture_shader_rgba, |
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vertex_shader, texture_fragment_shader_rgba) < 0) |
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return -1; |
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if (weston_shader_init(&ec->texture_shader_y_uv, |
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vertex_shader, texture_fragment_shader_y_uv) < 0) |
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return -1; |
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if (weston_shader_init(&ec->texture_shader_y_u_v, |
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vertex_shader, texture_fragment_shader_y_u_v) < 0) |
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return -1; |
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if (weston_shader_init(&ec->texture_shader_y_xuxv, |
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vertex_shader, texture_fragment_shader_y_xuxv) < 0) |
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return -1; |
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if (weston_shader_init(&ec->solid_shader, |
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vertex_shader, solid_fragment_shader) < 0) |
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return -1; |
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