1 #include "../../StdAfx.h"
\r
3 #include "image_shader.h"
\r
5 #include "../gpu/shader.h"
\r
6 #include "../gpu/ogl_device.h"
\r
8 #include "blending_glsl.h"
\r
10 #include <common/gl/gl_check.h>
\r
11 #include <common/env.h>
\r
13 #include <tbb/mutex.h>
\r
15 namespace caspar { namespace core {
\r
17 std::shared_ptr<shader> g_shader;
\r
18 tbb::mutex g_shader_mutex;
\r
19 bool g_blend_modes = false;
\r
21 std::string get_blend_color_func()
\r
25 get_adjustement_glsl()
\r
33 "vec3 get_blend_color(vec3 back, vec3 fore) \n"
\r
35 " switch(blend_mode) \n"
\r
37 " case 0: return BlendNormal(back, fore); \n"
\r
38 " case 1: return BlendLighten(back, fore); \n"
\r
39 " case 2: return BlendDarken(back, fore); \n"
\r
40 " case 3: return BlendMultiply(back, fore); \n"
\r
41 " case 4: return BlendAverage(back, fore); \n"
\r
42 " case 5: return BlendAdd(back, fore); \n"
\r
43 " case 6: return BlendSubstract(back, fore); \n"
\r
44 " case 7: return BlendDifference(back, fore); \n"
\r
45 " case 8: return BlendNegation(back, fore); \n"
\r
46 " case 9: return BlendExclusion(back, fore); \n"
\r
47 " case 10: return BlendScreen(back, fore); \n"
\r
48 " case 11: return BlendOverlay(back, fore); \n"
\r
49 //" case 12: return BlendSoftLight(back, fore); \n"
\r
50 " case 13: return BlendHardLight(back, fore); \n"
\r
51 " case 14: return BlendColorDodge(back, fore); \n"
\r
52 " case 15: return BlendColorBurn(back, fore); \n"
\r
53 " case 16: return BlendLinearDodge(back, fore); \n"
\r
54 " case 17: return BlendLinearBurn(back, fore); \n"
\r
55 " case 18: return BlendLinearLight(back, fore); \n"
\r
56 " case 19: return BlendVividLight(back, fore); \n"
\r
57 " case 20: return BlendPinLight(back, fore); \n"
\r
58 " case 21: return BlendHardMix(back, fore); \n"
\r
59 " case 22: return BlendReflect(back, fore); \n"
\r
60 " case 23: return BlendGlow(back, fore); \n"
\r
61 " case 24: return BlendPhoenix(back, fore); \n"
\r
62 " case 25: return BlendHue(back, fore); \n"
\r
63 " case 26: return BlendSaturation(back, fore); \n"
\r
64 " case 27: return BlendColor(back, fore); \n"
\r
65 " case 28: return BlendLuminosity(back, fore); \n"
\r
67 " return BlendNormal(back, fore); \n"
\r
70 "vec4 blend(vec4 fore) \n"
\r
72 " vec4 back = texture2D(background, gl_TexCoord[1].st).bgra; \n"
\r
73 " if(blend_mode != 0) \n"
\r
74 " fore.rgb = get_blend_color(back.rgb/(back.a+0.0000001), fore.rgb/(fore.a+0.0000001))*fore.a;\n"
\r
75 " switch(keyer) \n"
\r
77 " case 1: return fore + back; // additive \n"
\r
78 " default: return fore + (1.0-fore.a)*back; // linear \n"
\r
83 std::string get_simple_blend_color_func()
\r
87 get_adjustement_glsl()
\r
91 "vec4 blend(vec4 fore) \n"
\r
97 std::string get_vertex()
\r
103 " gl_TexCoord[0] = gl_MultiTexCoord0; \n"
\r
104 " gl_TexCoord[1] = gl_MultiTexCoord1; \n"
\r
105 " gl_Position = ftransform(); \n"
\r
109 std::string get_fragment(bool blend_modes)
\r
114 "uniform sampler2D background; \n"
\r
115 "uniform sampler2D plane[4]; \n"
\r
116 "uniform sampler2D local_key; \n"
\r
117 "uniform sampler2D layer_key; \n"
\r
119 "uniform bool is_hd; \n"
\r
120 "uniform bool has_local_key; \n"
\r
121 "uniform bool has_layer_key; \n"
\r
122 "uniform int blend_mode; \n"
\r
123 "uniform int keyer; \n"
\r
124 "uniform int pixel_format; \n"
\r
126 "uniform float opacity; \n"
\r
127 "uniform bool levels; \n"
\r
128 "uniform float min_input; \n"
\r
129 "uniform float max_input; \n"
\r
130 "uniform float gamma; \n"
\r
131 "uniform float min_output; \n"
\r
132 "uniform float max_output; \n"
\r
134 "uniform bool csb; \n"
\r
135 "uniform float brt; \n"
\r
136 "uniform float sat; \n"
\r
137 "uniform float con; \n"
\r
142 (blend_modes ? get_blend_color_func() : get_simple_blend_color_func())
\r
147 "//http://slouken.blogspot.com/2011/02/mpeg-acceleration-with-glsl.html \n"
\r
148 "vec4 ycbcra_to_rgba_sd(float y, float cb, float cr, float a) \n"
\r
150 " // YUV offset \n"
\r
151 " const vec3 offset = vec3(-0.0625, -0.5, -0.5); \n"
\r
153 " // RGB coefficients \n"
\r
154 " const vec3 Rcoeff = vec3(1.164, 0.000, 1.596); \n"
\r
155 " const vec3 Gcoeff = vec3(1.164, -0.391, -0.813); \n"
\r
156 " const vec3 Bcoeff = vec3(1.164, 2.018, 0.000); \n"
\r
158 " vec3 yuv = vec3(y, cr, cb); \n"
\r
161 " yuv += offset; \n"
\r
162 " rgba.r = dot(yuv, Rcoeff); \n"
\r
163 " rgba.g = dot(yuv, Gcoeff); \n"
\r
164 " rgba.b = dot(yuv, Bcoeff); \n"
\r
170 "vec4 ycbcra_to_rgba_hd(float y, float cb, float cr, float a) \n"
\r
172 " // YUV offset \n"
\r
173 " const vec3 offset = vec3(-0.0625, -0.5, -0.5); \n"
\r
175 " // RGB coefficients \n"
\r
176 " const vec3 Rcoeff = vec3(1.164, 0.000, 1.793); \n"
\r
177 " const vec3 Gcoeff = vec3(1.164, -0.213, -0.534); \n"
\r
178 " const vec3 Bcoeff = vec3(1.164, 2.115, 0.000); \n"
\r
180 " vec3 yuv = vec3(y, cr, cb); \n"
\r
183 " yuv += offset; \n"
\r
184 " rgba.r = dot(yuv, Rcoeff); \n"
\r
185 " rgba.g = dot(yuv, Gcoeff); \n"
\r
186 " rgba.b = dot(yuv, Bcoeff); \n"
\r
192 "vec4 ycbcra_to_rgba(float y, float cb, float cr, float a) \n"
\r
195 " return ycbcra_to_rgba_hd(y, cb, cr, a); \n"
\r
197 " return ycbcra_to_rgba_sd(y, cb, cr, a); \n"
\r
200 "vec4 get_rgba_color() \n"
\r
202 " switch(pixel_format) \n"
\r
204 " case 0: //gray \n"
\r
205 " return vec4(texture2D(plane[0], gl_TexCoord[0].st).rrr, 1.0); \n"
\r
206 " case 1: //bgra, \n"
\r
207 " return texture2D(plane[0], gl_TexCoord[0].st).bgra; \n"
\r
208 " case 2: //rgba, \n"
\r
209 " return texture2D(plane[0], gl_TexCoord[0].st).rgba; \n"
\r
210 " case 3: //argb, \n"
\r
211 " return texture2D(plane[0], gl_TexCoord[0].st).argb; \n"
\r
212 " case 4: //abgr, \n"
\r
213 " return texture2D(plane[0], gl_TexCoord[0].st).gbar; \n"
\r
214 " case 5: //ycbcr, \n"
\r
216 " float y = texture2D(plane[0], gl_TexCoord[0].st).r; \n"
\r
217 " float cb = texture2D(plane[1], gl_TexCoord[0].st).r; \n"
\r
218 " float cr = texture2D(plane[2], gl_TexCoord[0].st).r; \n"
\r
219 " return ycbcra_to_rgba(y, cb, cr, 1.0); \n"
\r
221 " case 6: //ycbcra \n"
\r
223 " float y = texture2D(plane[0], gl_TexCoord[0].st).r; \n"
\r
224 " float cb = texture2D(plane[1], gl_TexCoord[0].st).r; \n"
\r
225 " float cr = texture2D(plane[2], gl_TexCoord[0].st).r; \n"
\r
226 " float a = texture2D(plane[3], gl_TexCoord[0].st).r; \n"
\r
227 " return ycbcra_to_rgba(y, cb, cr, a); \n"
\r
229 " case 7: //luma \n"
\r
231 " vec3 y3 = texture2D(plane[0], gl_TexCoord[0].st).rrr; \n"
\r
232 " return vec4((y3-0.065)/0.859, 1.0); \n"
\r
235 " return vec4(0.0, 0.0, 0.0, 0.0); \n"
\r
240 " vec4 color = get_rgba_color(); \n"
\r
242 " color.rgb = LevelsControl(color.rgb, min_input, max_input, gamma, min_output, max_output); \n"
\r
244 " color.rgb = ContrastSaturationBrightness(color.rgb, brt, sat, con); \n"
\r
245 " if(has_local_key) \n"
\r
246 " color *= texture2D(local_key, gl_TexCoord[1].st).r; \n"
\r
247 " if(has_layer_key) \n"
\r
248 " color *= texture2D(layer_key, gl_TexCoord[1].st).r; \n"
\r
249 " color *= opacity; \n"
\r
250 " color = blend(color); \n"
\r
251 " gl_FragColor = color.bgra; \n"
\r
255 safe_ptr<shader> get_image_shader(ogl_device& ogl, bool& blend_modes)
\r
257 tbb::mutex::scoped_lock lock(g_shader_mutex);
\r
261 blend_modes = g_blend_modes;
\r
262 return make_safe_ptr(g_shader);
\r
267 g_blend_modes = glTextureBarrierNV ? env::properties().get("configuration.mixers.blend-modes", false) : false;
\r
268 g_shader.reset(new shader(get_vertex(), get_fragment(g_blend_modes)));
\r
272 CASPAR_LOG_CURRENT_EXCEPTION();
\r
273 CASPAR_LOG(warning) << "Failed to compile shader. Trying to compile without blend-modes.";
\r
275 g_blend_modes = false;
\r
276 g_shader.reset(new shader(get_vertex(), get_fragment(g_blend_modes)));
\r
279 ogl.enable(GL_TEXTURE_2D);
\r
283 ogl.enable(GL_BLEND);
\r
284 glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE);
\r
285 CASPAR_LOG(info) << L"[shader] Blend-modes are disabled.";
\r
288 blend_modes = g_blend_modes;
\r
289 return make_safe_ptr(g_shader);
\r
projects / casparcg / blob