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gl/memory: implement GL_EXT_texture_rg support

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Which is used by default over the Luminance formats due to it
being color renderable with fbos (and deprecation/removal with
GL 3.x).

https://bugzilla.gnome.org/show_bug.cgi?id=729750
https://bugzilla.gnome.org/show_bug.cgi?id=704222
https://bugzilla.gnome.org/show_bug.cgi?id=728890
This commit is contained in:
Matthew Waters 2014-05-21 21:47:45 +10:00
parent 9cdafffe7f
commit 001b92ba12
4 changed files with 68 additions and 23 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

33
gst-libs/gst/gl/gstglcolorconvert.c
View file

@ -694,6 +694,9 @@ _YUV_to_RGB (GstGLColorConvert * convert)
GstVideoFormat out_format = GST_VIDEO_INFO_FORMAT (&convert->out_info);
const gchar *out_format_str = gst_video_format_to_string (out_format);
gchar *pixel_order = _RGB_pixel_order ("rgba", out_format_str);
gboolean texture_rg =
gst_gl_context_check_feature (convert->context, "GL_EXT_texture_rg")
|| gst_gl_context_check_feature (convert->context, "GL_ARB_texture_rg");
info->out_n_textures = 1;
@ -737,21 +740,29 @@ _YUV_to_RGB (GstGLColorConvert * convert)
GST_VIDEO_INFO_PLANE_STRIDE (&convert->in_info, 0));
break;
case GST_VIDEO_FORMAT_NV12:
info->frag_prog = g_strdup_printf (frag_NV12_NV21_to_RGB, 'r', 'a',
{
char val2 = texture_rg ? 'g' : 'a';
info->frag_prog = g_strdup_printf (frag_NV12_NV21_to_RGB, 'r', val2,
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]);
info->in_n_textures = 2;
info->shader_tex_names[0] = "Ytex";
info->shader_tex_names[1] = "UVtex";
break;
}
case GST_VIDEO_FORMAT_NV21:
info->frag_prog = g_strdup_printf (frag_NV12_NV21_to_RGB, 'a', 'r',
{
char val2 = texture_rg ? 'g' : 'a';
info->frag_prog = g_strdup_printf (frag_NV12_NV21_to_RGB, val2, 'r',
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]);
info->in_n_textures = 2;
info->shader_tex_names[0] = "Ytex";
info->shader_tex_names[1] = "UVtex";
break;
}
case GST_VIDEO_FORMAT_UYVY:
info->frag_prog = g_strdup_printf (frag_YUY2_UYVY_to_RGB, 'a', 'r', 'b',
{
char y_val = texture_rg ? 'g' : 'a';
info->frag_prog = g_strdup_printf (frag_YUY2_UYVY_to_RGB, y_val, 'r', 'b',
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]);
info->in_n_textures = 1;
info->shader_tex_names[0] = "Ytex";
@ -763,6 +774,7 @@ _YUV_to_RGB (GstGLColorConvert * convert)
GST_VIDEO_INFO_HEIGHT (&convert->in_info),
GST_VIDEO_INFO_PLANE_STRIDE (&convert->in_info, 0));
break;
}
default:
break;
}
@ -885,6 +897,9 @@ _GRAY_to_RGB (GstGLColorConvert * convert)
GstVideoFormat out_format = GST_VIDEO_INFO_FORMAT (&convert->out_info);
const gchar *out_format_str = gst_video_format_to_string (out_format);
gchar *pixel_order = _RGB_pixel_order ("rgba", out_format_str);
gboolean texture_rg =
gst_gl_context_check_feature (convert->context, "GL_EXT_texture_rg")
|| gst_gl_context_check_feature (convert->context, "GL_ARB_texture_rg");
info->in_n_textures = 1;
info->out_n_textures = 1;
@ -893,16 +908,22 @@ _GRAY_to_RGB (GstGLColorConvert * convert)
switch (GST_VIDEO_INFO_FORMAT (&convert->in_info)) {
case GST_VIDEO_FORMAT_GRAY8:
info->frag_prog = g_strdup_printf (frag_REORDER, "", pixel_order[0],
pixel_order[1], pixel_order[2], pixel_order[3]);
pixel_order[0], pixel_order[0], pixel_order[3]);
break;
case GST_VIDEO_FORMAT_GRAY16_LE:
info->frag_prog = g_strdup_printf (frag_COMPOSE, 'a', 'r',
{
char val2 = texture_rg ? 'g' : 'a';
info->frag_prog = g_strdup_printf (frag_COMPOSE, val2, 'r',
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]);
break;
}
case GST_VIDEO_FORMAT_GRAY16_BE:
info->frag_prog = g_strdup_printf (frag_COMPOSE, 'r', 'a',
{
char val2 = texture_rg ? 'g' : 'a';
info->frag_prog = g_strdup_printf (frag_COMPOSE, 'r', val2,
pixel_order[0], pixel_order[1], pixel_order[2], pixel_order[3]);
break;
}
default:
break;
}

54
gst-libs/gst/gl/gstglmemory.c
View file

@ -181,8 +181,14 @@ _gl_texture_type_n_bytes (GstVideoGLTextureType tex_format)
}
GstVideoGLTextureType
gst_gl_texture_type_from_format (GstVideoFormat v_format, guint plane)
gst_gl_texture_type_from_format (GstGLContext * context,
GstVideoFormat v_format, guint plane)
{
gboolean texture_rg =
gst_gl_context_check_feature (context, "GL_EXT_texture_rg")
|| gst_gl_context_check_feature (context, "GL_ARB_texture_rg");
guint n_plane_components;
switch (v_format) {
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
@ -193,40 +199,56 @@ gst_gl_texture_type_from_format (GstVideoFormat v_format, guint plane)
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_AYUV:
return GST_VIDEO_GL_TEXTURE_TYPE_RGBA;
n_plane_components = 4;
break;
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
return GST_VIDEO_GL_TEXTURE_TYPE_RGB;
break;
case GST_VIDEO_FORMAT_GRAY8:
return GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE;
n_plane_components = 3;
break;
case GST_VIDEO_FORMAT_GRAY16_BE:
case GST_VIDEO_FORMAT_GRAY16_LE:
return GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE_ALPHA;
break;
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
return GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE_ALPHA;
n_plane_components = 2;
break;
case GST_VIDEO_FORMAT_NV12:
case GST_VIDEO_FORMAT_NV21:
if (plane == 0)
return GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE;
return GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE_ALPHA;
n_plane_components = plane == 0 ? 1 : 2;
break;
case GST_VIDEO_FORMAT_GRAY8:
case GST_VIDEO_FORMAT_Y444:
case GST_VIDEO_FORMAT_Y42B:
case GST_VIDEO_FORMAT_Y41B:
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
return GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE;
n_plane_components = 1;
break;
default:
n_plane_components = 4;
g_assert_not_reached ();
break;
}
switch (n_plane_components) {
case 4:
return GST_VIDEO_GL_TEXTURE_TYPE_RGBA;
break;
case 3:
return GST_VIDEO_GL_TEXTURE_TYPE_RGB;
break;
case 2:
return texture_rg ? GST_VIDEO_GL_TEXTURE_TYPE_RG :
GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE_ALPHA;
break;
case 1:
return texture_rg ? GST_VIDEO_GL_TEXTURE_TYPE_R :
GST_VIDEO_GL_TEXTURE_TYPE_LUMINANCE;
break;
default:
g_assert_not_reached ();
break;
}
return GST_VIDEO_GL_TEXTURE_TYPE_RGBA;
}
@ -1041,7 +1063,8 @@ gst_gl_memory_setup_buffer (GstGLContext * context, GstVideoInfo * info,
for (i = 0; i < n_mem; i++) {
tex_type =
gst_gl_texture_type_from_format (GST_VIDEO_INFO_FORMAT (info), i);
gst_gl_texture_type_from_format (context, GST_VIDEO_INFO_FORMAT (info),
i);
gl_mem[i] =
(GstGLMemory *) gst_gl_memory_alloc (context, tex_type,
_get_plane_width (info, i), _get_plane_height (info, i),
@ -1079,7 +1102,8 @@ gst_gl_memory_setup_wrapped (GstGLContext * context, GstVideoInfo * info,
for (i = 0; i < GST_VIDEO_INFO_N_PLANES (info); i++) {
tex_type =
gst_gl_texture_type_from_format (GST_VIDEO_INFO_FORMAT (info), i);
gst_gl_texture_type_from_format (context, GST_VIDEO_INFO_FORMAT (info),
i);
textures[i] = (GstGLMemory *) gst_gl_memory_wrapped (context, tex_type,
_get_plane_width (info, i), _get_plane_height (info, i),

2
gst-libs/gst/gl/gstglmemory.h
View file

@ -173,7 +173,7 @@ gboolean gst_gl_memory_setup_wrapped (GstGLContext * context, GstVideoInfo
gpointer data[GST_VIDEO_MAX_PLANES],
GstGLMemory *textures[GST_VIDEO_MAX_PLANES]);
GstVideoGLTextureType gst_gl_texture_type_from_format (GstVideoFormat v_format, guint plane);
GstVideoGLTextureType gst_gl_texture_type_from_format (GstGLContext *context, GstVideoFormat v_format, guint plane);
/**
* GstGLAllocator

2
gst-libs/gst/gl/gstglupload.c
View file

@ -568,7 +568,7 @@ gst_gl_upload_add_video_gl_texture_upload_meta (GstGLUpload * upload,
upload->priv->buffer = buffer;
for (i = 0; i < GST_VIDEO_MAX_PLANES; i++) {
texture_types[i] = gst_gl_texture_type_from_format (v_meta->format, i);
texture_types[i] = gst_gl_texture_type_from_format (upload->context, v_meta->format, i);
}
gst_buffer_add_video_gl_texture_upload_meta (buffer,