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glcolorconvert: merge shaders for AYUV and VUYA formats

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The shaders can be used for AYUV and varieties.
This commit is contained in:
Haihao Xiang 2019-10-14 10:02:59 +08:00 committed by Matthew Waters
parent 289d8e53e2
commit 56de495f0e
1 changed files with 12 additions and 39 deletions
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51
gst-libs/gst/gl/gstglcolorconvert.c
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@ -200,11 +200,12 @@ static const struct shader_templ templ_COMPOSE =
GST_GL_TEXTURE_TARGET_2D GST_GL_TEXTURE_TARGET_2D
}; };
/* Shaders for AYUV and varieties */
static const gchar templ_AYUV_to_RGB_BODY[] = static const gchar templ_AYUV_to_RGB_BODY[] =
"vec4 texel, rgba;\n" "vec4 texel, rgba;\n"
"texel = texture2D(tex, texcoord * tex_scale0);\n" "texel = texture2D(tex, texcoord * tex_scale0);\n"
"rgba.rgb = yuv_to_rgb (texel.yzw, offset, coeff1, coeff2, coeff3);\n" "rgba.rgb = yuv_to_rgb (texel.%s, offset, coeff1, coeff2, coeff3);\n"
"rgba.a = texel.r;\n" "rgba.a = texel.%c;\n"
"gl_FragColor=vec4(rgba.%c,rgba.%c,rgba.%c,rgba.%c);\n"; "gl_FragColor=vec4(rgba.%c,rgba.%c,rgba.%c,rgba.%c);\n";
static const struct shader_templ templ_AYUV_to_RGB = static const struct shader_templ templ_AYUV_to_RGB =
@ -217,8 +218,8 @@ static const struct shader_templ templ_AYUV_to_RGB =
static const gchar templ_RGB_to_AYUV_BODY[] = static const gchar templ_RGB_to_AYUV_BODY[] =
"vec4 texel, ayuv;\n" "vec4 texel, ayuv;\n"
"texel = texture2D(tex, texcoord).%c%c%c%c;\n" "texel = texture2D(tex, texcoord).%c%c%c%c;\n"
"ayuv.yzw = rgb_to_yuv (texel.rgb, offset, coeff1, coeff2, coeff3);\n" "ayuv.%s = rgb_to_yuv (texel.rgb, offset, coeff1, coeff2, coeff3);\n"
"ayuv.x = %s;\n" "ayuv.%c = %s;\n"
"gl_FragColor = ayuv;\n"; "gl_FragColor = ayuv;\n";
static const struct shader_templ templ_RGB_to_AYUV = static const struct shader_templ templ_RGB_to_AYUV =
@ -228,34 +229,6 @@ static const struct shader_templ templ_RGB_to_AYUV =
GST_GL_TEXTURE_TARGET_2D GST_GL_TEXTURE_TARGET_2D
}; };
static const gchar templ_VUYA_to_RGB_BODY[] =
"vec4 texel, rgba;\n"
"texel = texture2D(tex, texcoord * tex_scale0);\n"
"rgba.rgb = yuv_to_rgb (texel.zyx, offset, coeff1, coeff2, coeff3);\n"
"rgba.a = texel.w;\n"
"gl_FragColor=vec4(rgba.%c,rgba.%c,rgba.%c,rgba.%c);\n";
static const struct shader_templ templ_VUYA_to_RGB =
{ NULL,
DEFAULT_UNIFORMS YUV_TO_RGB_COEFFICIENTS "uniform sampler2D tex;\n",
{ glsl_func_yuv_to_rgb, NULL, },
GST_GL_TEXTURE_TARGET_2D
};
static const gchar templ_RGB_to_VUYA_BODY[] =
"vec4 texel, ayuv;\n"
"texel = texture2D(tex, texcoord).%c%c%c%c;\n"
"ayuv.zyx = rgb_to_yuv (texel.rgb, offset, coeff1, coeff2, coeff3);\n"
"ayuv.w = %s;\n"
"gl_FragColor = ayuv;\n";
static const struct shader_templ templ_RGB_to_VUYA =
{ NULL,
DEFAULT_UNIFORMS RGB_TO_YUV_COEFFICIENTS "uniform sampler2D tex;\n",
{ glsl_func_rgb_to_yuv, NULL, },
GST_GL_TEXTURE_TARGET_2D
};
/* YUV to RGB conversion */ /* YUV to RGB conversion */
static const gchar templ_PLANAR_YUV_to_RGB_BODY[] = static const gchar templ_PLANAR_YUV_to_RGB_BODY[] =
"vec4 texel, rgba;\n" "vec4 texel, rgba;\n"
@ -1642,13 +1615,13 @@ _YUV_to_RGB (GstGLColorConvert * convert)
switch (GST_VIDEO_INFO_FORMAT (&convert->in_info)) { switch (GST_VIDEO_INFO_FORMAT (&convert->in_info)) {
case GST_VIDEO_FORMAT_AYUV: case GST_VIDEO_FORMAT_AYUV:
info->templ = &templ_AYUV_to_RGB; info->templ = &templ_AYUV_to_RGB;
info->frag_body = g_strdup_printf (templ_AYUV_to_RGB_BODY, info->frag_body = g_strdup_printf (templ_AYUV_to_RGB_BODY, "yzw", 'x',
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]); pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]);
info->shader_tex_names[0] = "tex"; info->shader_tex_names[0] = "tex";
break; break;
case GST_VIDEO_FORMAT_VUYA: case GST_VIDEO_FORMAT_VUYA:
info->templ = &templ_VUYA_to_RGB; info->templ = &templ_AYUV_to_RGB;
info->frag_body = g_strdup_printf (templ_VUYA_to_RGB_BODY, info->frag_body = g_strdup_printf (templ_AYUV_to_RGB_BODY, "zyx", 'w',
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]); pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]);
info->shader_tex_names[0] = "tex"; info->shader_tex_names[0] = "tex";
break; break;
@ -1771,14 +1744,14 @@ _RGB_to_YUV (GstGLColorConvert * convert)
alpha = _is_RGBx (in_format) ? "1.0" : "texel.a"; alpha = _is_RGBx (in_format) ? "1.0" : "texel.a";
info->templ = &templ_RGB_to_AYUV; info->templ = &templ_RGB_to_AYUV;
info->frag_body = g_strdup_printf (templ_RGB_to_AYUV_BODY, pixel_order[0], info->frag_body = g_strdup_printf (templ_RGB_to_AYUV_BODY, pixel_order[0],
pixel_order[1], pixel_order[2], pixel_order[3], alpha); pixel_order[1], pixel_order[2], pixel_order[3], "yzw", 'x', alpha);
info->out_n_textures = 1; info->out_n_textures = 1;
break; break;
case GST_VIDEO_FORMAT_VUYA: case GST_VIDEO_FORMAT_VUYA:
alpha = _is_RGBx (in_format) ? "1.0" : "texel.a"; alpha = _is_RGBx (in_format) ? "1.0" : "texel.a";
info->templ = &templ_RGB_to_VUYA; info->templ = &templ_RGB_to_AYUV;
info->frag_body = g_strdup_printf (templ_RGB_to_VUYA_BODY, pixel_order[0], info->frag_body = g_strdup_printf (templ_RGB_to_AYUV_BODY, pixel_order[0],
pixel_order[1], pixel_order[2], pixel_order[3], alpha); pixel_order[1], pixel_order[2], pixel_order[3], "zyx", 'w', alpha);
info->out_n_textures = 1; info->out_n_textures = 1;
break; break;
case GST_VIDEO_FORMAT_I420: case GST_VIDEO_FORMAT_I420: