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[egl] implemented YUV420 decode support in hardware

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This commit is contained in:
Geoffrey McRae
2018-09-23 20:45:20 +10:00
parent 1f1c9dfa59
commit b5a47cae25
7 changed files with 208 additions and 45 deletions
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43
client/renderers/egl_shader_progs.h
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@@ -38,16 +38,16 @@ void main()\
";
static const char egl_fragment_shader_rgba[] = "\
#version 300 es\
#version 300 es\n\
\
in highp vec2 uv;\
out highp vec3 color;\
\
uniform sampler2D sampler;\
uniform sampler2D sampler1;\
\
void main()\
{\
color = texture(sampler, uv).rgb;\
color = texture(sampler1, uv).rgb;\
}\
";
@@ -57,15 +57,48 @@ static const char egl_fragment_shader_bgra[] = "\
in highp vec2 uv;\
out highp vec3 color;\
\
uniform sampler2D sampler;\
uniform sampler2D sampler1;\
\
void main()\
{\
highp vec3 tmp = texture(sampler, uv).rgb;\
highp vec3 tmp = texture(sampler1, uv).rgb;\
color.r = tmp.b;\
color.g = tmp.g;\
color.b = tmp.r;\
}\
";
static const char egl_fragment_shader_yuv[] = "\
#version 300 es\n\
\
in highp vec2 uv;\
out highp vec3 color;\
\
uniform sampler2D sampler1;\
uniform sampler2D sampler2;\
uniform sampler2D sampler3;\
\
void main()\
{\
highp vec4 yuv = vec4(\
texture(sampler1, uv).r,\
texture(sampler2, uv).r,\
texture(sampler3, uv).r,\
1.0\
);\
\
highp mat4 yuv_to_rgb = mat4(\
1.0, 0.0 , 1.402, -0.701,\
1.0, -0.344, -0.714, 0.529,\
1.0, 1.772, 0.0 , -0.886,\
1.0, 1.0 , 1.0 , 1.0\
);\
yuv = yuv * yuv_to_rgb;\
\
color.r = yuv.r;\
color.g = yuv.g;\
color.b = yuv.b;\
}\
";
#endif