mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-03 15:06:34 +00:00
glviewconvert: Port more things to GLES/GL 3 compatibility
And move the shader mangling code into a single place instead of having a copy in glcolorconvert and glviewconvert. https://bugzilla.gnome.org/show_bug.cgi?id=765266
This commit is contained in:
Sebastian Dröge
Tim-Philipp Müller
parent
64c320ca3c
commit
1066b2a860
4 changed files with 246 additions and 416 deletions
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@ -27,6 +27,7 @@
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#include "gl.h"
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#include "gstglcolorconvert.h"
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#include "gstglsl_private.h"
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/**
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* SECTION:gstglcolorconvert
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@ -1710,209 +1711,6 @@ _unbind_buffer (GstGLColorConvert * convert)
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gl->DisableVertexAttribArray (convert->priv->attr_texture);
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}
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static gchar *
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_mangle_texture_access (const gchar * str, GstGLTextureTarget from,
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GstGLTextureTarget to, GstGLAPI gl_api, guint gl_major, guint gl_minor)
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{
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const gchar *from_str = NULL, *to_str = NULL;
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gchar *ret, *tmp;
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gchar *regex_find;
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GRegex *regex;
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if (from == GST_GL_TEXTURE_TARGET_2D)
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from_str = "texture2D";
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if (from == GST_GL_TEXTURE_TARGET_RECTANGLE)
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from_str = "texture2DRect";
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if (from == GST_GL_TEXTURE_TARGET_EXTERNAL_OES)
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from_str = "texture2D";
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if ((gl_api & GST_GL_API_OPENGL3) || (gl_api & GST_GL_API_GLES2
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&& gl_major >= 3)) {
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to_str = "texture";
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} else {
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if (to == GST_GL_TEXTURE_TARGET_2D)
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to_str = "texture2D";
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if (to == GST_GL_TEXTURE_TARGET_RECTANGLE)
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to_str = "texture2DRect";
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if (to == GST_GL_TEXTURE_TARGET_EXTERNAL_OES)
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to_str = "texture2D";
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}
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/* followed by any amount of whitespace then a bracket */
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regex_find = g_strdup_printf ("%s(?=\\s*\\()", from_str);
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regex = g_regex_new (regex_find, 0, 0, NULL);
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tmp = g_regex_replace_literal (regex, str, -1, 0, to_str, 0, NULL);
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g_free (regex_find);
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g_regex_unref (regex);
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if (tmp) {
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ret = tmp;
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} else {
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GST_FIXME ("Couldn't mangle texture access successfully from %s to %s",
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from_str, to_str);
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ret = g_strdup (str);
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}
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return ret;
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}
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static gchar *
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_mangle_sampler_type (const gchar * str, GstGLTextureTarget from,
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GstGLTextureTarget to)
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{
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const gchar *from_str = NULL, *to_str = NULL;
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gchar *ret, *tmp;
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gchar *regex_find;
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GRegex *regex;
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if (from == GST_GL_TEXTURE_TARGET_2D)
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from_str = "sampler2D";
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if (from == GST_GL_TEXTURE_TARGET_RECTANGLE)
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from_str = "sampler2DRect";
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if (from == GST_GL_TEXTURE_TARGET_EXTERNAL_OES)
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from_str = "samplerExternalOES";
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if (to == GST_GL_TEXTURE_TARGET_2D)
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to_str = "sampler2D";
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if (to == GST_GL_TEXTURE_TARGET_RECTANGLE)
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to_str = "sampler2DRect";
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if (to == GST_GL_TEXTURE_TARGET_EXTERNAL_OES)
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to_str = "samplerExternalOES";
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/* followed by some whitespace */
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regex_find = g_strdup_printf ("%s(?=\\s)", from_str);
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regex = g_regex_new (regex_find, 0, 0, NULL);
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tmp = g_regex_replace_literal (regex, str, -1, 0, to_str, 0, NULL);
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g_free (regex_find);
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g_regex_unref (regex);
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if (tmp) {
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ret = tmp;
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} else {
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GST_FIXME ("Couldn't mangle sampler type successfully from %s to %s",
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from_str, to_str);
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ret = g_strdup (str);
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}
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return ret;
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}
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static gchar *
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_mangle_varying_attribute (const gchar * str, guint shader_type,
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GstGLAPI gl_api, guint gl_major, guint gl_minor)
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{
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if (shader_type == GL_VERTEX_SHADER) {
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if ((gl_api & GST_GL_API_OPENGL3) || (gl_api & GST_GL_API_GLES2
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&& gl_major >= 3)) {
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gchar *tmp, *tmp2;
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GRegex *regex;
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/* followed by some whitespace */
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regex = g_regex_new ("varying(?=\\s)", 0, 0, NULL);
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tmp = g_regex_replace_literal (regex, str, -1, 0, "out", 0, NULL);
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g_regex_unref (regex);
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/* followed by some whitespace */
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regex = g_regex_new ("attribute(?=\\s)", 0, 0, NULL);
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tmp2 = g_regex_replace_literal (regex, tmp, -1, 0, "in", 0, NULL);
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g_regex_unref (regex);
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g_free (tmp);
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return tmp2;
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}
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} else if (shader_type == GL_FRAGMENT_SHADER) {
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if ((gl_api & GST_GL_API_OPENGL3) || (gl_api & GST_GL_API_GLES2
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&& gl_major > 3)) {
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gchar *tmp;
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GRegex *regex;
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/* followed by some whitespace */
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regex = g_regex_new ("varying(?=\\s)", 0, 0, NULL);
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tmp = g_regex_replace_literal (regex, str, -1, 0, "in", 0, NULL);
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g_regex_unref (regex);
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return tmp;
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}
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}
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return g_strdup (str);
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}
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static gchar *
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_mangle_frag_color_data (const gchar * str)
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{
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GRegex *regex;
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gchar *ret, *tmp;
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regex = g_regex_new ("gl_FragColor", 0, 0, NULL);
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ret = g_regex_replace_literal (regex, str, -1, 0, "fragColor", 0, NULL);
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g_regex_unref (regex);
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tmp = ret;
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/* search and replace 'gl_FragData[NUM]' into fragColor_NUM */
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regex = g_regex_new ("gl_FragData\\[(\\d+)\\]", 0, 0, NULL);
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ret = g_regex_replace (regex, tmp, -1, 0, "fragColor_\\1", 0, NULL);
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g_regex_unref (regex);
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g_free (tmp);
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return ret;
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}
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static void
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_mangle_version_profile_from_gl_api (GstGLAPI gl_api, gint gl_major,
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gint gl_minor, GstGLSLVersion * version, GstGLSLProfile * profile)
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{
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*version = GST_GLSL_VERSION_NONE;
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*profile = GST_GLSL_PROFILE_NONE;
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if (gl_api & GST_GL_API_OPENGL3) {
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if (gl_major > 3 || gl_minor >= 3) {
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*version = GST_GLSL_VERSION_330;
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*profile = GST_GLSL_PROFILE_CORE;
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} else {
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*version = GST_GLSL_VERSION_150;
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*profile = GST_GLSL_PROFILE_NONE;
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}
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} else if (gl_api & GST_GL_API_GLES2) {
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if (gl_major >= 3) {
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*version = GST_GLSL_VERSION_300;
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*profile = GST_GLSL_PROFILE_ES;
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} else if (gl_major >= 2) {
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*version = GST_GLSL_VERSION_100;
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*profile = GST_GLSL_PROFILE_ES;
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}
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} else if (gl_api & GST_GL_API_OPENGL) {
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*version = GST_GLSL_VERSION_110;
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*profile = GST_GLSL_PROFILE_COMPATIBILITY;
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}
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}
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static gchar *
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_mangle_shader (const gchar * str, guint shader_type, GstGLTextureTarget from,
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GstGLTextureTarget to, GstGLAPI gl_api, gint gl_major, gint gl_minor,
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GstGLSLVersion * version, GstGLSLProfile * profile)
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{
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gchar *tmp, *tmp2;
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_mangle_version_profile_from_gl_api (gl_api, gl_major, gl_minor, version,
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profile);
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tmp = _mangle_texture_access (str, from, to, gl_api, gl_major, gl_minor);
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tmp2 = _mangle_sampler_type (tmp, from, to);
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g_free (tmp);
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tmp =
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_mangle_varying_attribute (tmp2, shader_type, gl_api, gl_major, gl_minor);
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g_free (tmp2);
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if (shader_type == GL_FRAGMENT_SHADER) {
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if ((*profile == GST_GLSL_PROFILE_ES && *version >= GST_GLSL_VERSION_300)
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|| (*profile == GST_GLSL_PROFILE_CORE
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&& *version >= GST_GLSL_VERSION_150)) {
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tmp2 = _mangle_frag_color_data (tmp);
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g_free (tmp);
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tmp = tmp2;
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}
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}
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return tmp;
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}
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static GstGLShader *
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_create_shader (GstGLColorConvert * convert)
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{
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@ -1935,9 +1733,9 @@ _create_shader (GstGLColorConvert * convert)
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ret = gst_gl_shader_new (convert->context);
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tmp =
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_mangle_shader (text_vertex_shader, GL_VERTEX_SHADER, info->templ->target,
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convert->priv->from_texture_target, gl_api, gl_major, gl_minor, &version,
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&profile);
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_gst_glsl_mangle_shader (text_vertex_shader, GL_VERTEX_SHADER,
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info->templ->target, convert->priv->from_texture_target, gl_api, gl_major,
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gl_minor, &version, &profile);
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tmp1 = gst_glsl_version_profile_to_string (version, profile);
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version_str = g_strdup_printf ("#version %s\n", tmp1);
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@ -2043,7 +1841,7 @@ _create_shader (GstGLColorConvert * convert)
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}
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g_string_append (str, "\n}");
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tmp = g_string_free (str, FALSE);
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info->frag_prog = _mangle_shader (tmp, GL_FRAGMENT_SHADER,
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info->frag_prog = _gst_glsl_mangle_shader (tmp, GL_FRAGMENT_SHADER,
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info->templ->target, convert->priv->from_texture_target, gl_api,
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gl_major, gl_minor, &version, &profile);
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g_free (tmp);
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@ -551,3 +551,208 @@ _gst_glsl_funcs_fill (GstGLSLFuncs * vtable, GstGLContext * context)
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vtable->initialized = TRUE;
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return TRUE;
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}
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static gchar *
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_mangle_texture_access (const gchar * str, GstGLTextureTarget from,
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GstGLTextureTarget to, GstGLAPI gl_api, guint gl_major, guint gl_minor)
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{
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const gchar *from_str = NULL, *to_str = NULL;
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gchar *ret, *tmp;
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gchar *regex_find;
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GRegex *regex;
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if (from == GST_GL_TEXTURE_TARGET_2D)
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from_str = "texture2D";
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if (from == GST_GL_TEXTURE_TARGET_RECTANGLE)
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from_str = "texture2DRect";
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if (from == GST_GL_TEXTURE_TARGET_EXTERNAL_OES)
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from_str = "texture2D";
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if ((gl_api & GST_GL_API_OPENGL3) || (gl_api & GST_GL_API_GLES2
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&& gl_major >= 3)) {
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to_str = "texture";
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} else {
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if (to == GST_GL_TEXTURE_TARGET_2D)
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to_str = "texture2D";
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if (to == GST_GL_TEXTURE_TARGET_RECTANGLE)
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to_str = "texture2DRect";
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if (to == GST_GL_TEXTURE_TARGET_EXTERNAL_OES)
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to_str = "texture2D";
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}
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/* followed by any amount of whitespace then a bracket */
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regex_find = g_strdup_printf ("%s(?=\\s*\\()", from_str);
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regex = g_regex_new (regex_find, 0, 0, NULL);
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tmp = g_regex_replace_literal (regex, str, -1, 0, to_str, 0, NULL);
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g_free (regex_find);
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g_regex_unref (regex);
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if (tmp) {
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ret = tmp;
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} else {
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GST_FIXME ("Couldn't mangle texture access successfully from %s to %s",
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from_str, to_str);
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ret = g_strdup (str);
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}
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return ret;
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}
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static gchar *
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_mangle_sampler_type (const gchar * str, GstGLTextureTarget from,
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GstGLTextureTarget to)
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{
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const gchar *from_str = NULL, *to_str = NULL;
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gchar *ret, *tmp;
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gchar *regex_find;
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GRegex *regex;
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if (from == GST_GL_TEXTURE_TARGET_2D)
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from_str = "sampler2D";
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if (from == GST_GL_TEXTURE_TARGET_RECTANGLE)
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from_str = "sampler2DRect";
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if (from == GST_GL_TEXTURE_TARGET_EXTERNAL_OES)
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from_str = "samplerExternalOES";
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if (to == GST_GL_TEXTURE_TARGET_2D)
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to_str = "sampler2D";
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if (to == GST_GL_TEXTURE_TARGET_RECTANGLE)
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to_str = "sampler2DRect";
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if (to == GST_GL_TEXTURE_TARGET_EXTERNAL_OES)
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to_str = "samplerExternalOES";
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/* followed by some whitespace */
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regex_find = g_strdup_printf ("%s(?=\\s)", from_str);
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regex = g_regex_new (regex_find, 0, 0, NULL);
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tmp = g_regex_replace_literal (regex, str, -1, 0, to_str, 0, NULL);
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g_free (regex_find);
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g_regex_unref (regex);
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if (tmp) {
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ret = tmp;
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} else {
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GST_FIXME ("Couldn't mangle sampler type successfully from %s to %s",
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from_str, to_str);
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ret = g_strdup (str);
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}
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return ret;
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}
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static gchar *
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_mangle_varying_attribute (const gchar * str, guint shader_type,
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GstGLAPI gl_api, guint gl_major, guint gl_minor)
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{
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if (shader_type == GL_VERTEX_SHADER) {
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if ((gl_api & GST_GL_API_OPENGL3) || (gl_api & GST_GL_API_GLES2
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&& gl_major >= 3)) {
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gchar *tmp, *tmp2;
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GRegex *regex;
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/* followed by some whitespace */
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regex = g_regex_new ("varying(?=\\s)", 0, 0, NULL);
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tmp = g_regex_replace_literal (regex, str, -1, 0, "out", 0, NULL);
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g_regex_unref (regex);
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/* followed by some whitespace */
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regex = g_regex_new ("attribute(?=\\s)", 0, 0, NULL);
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tmp2 = g_regex_replace_literal (regex, tmp, -1, 0, "in", 0, NULL);
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g_regex_unref (regex);
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g_free (tmp);
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return tmp2;
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}
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} else if (shader_type == GL_FRAGMENT_SHADER) {
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if ((gl_api & GST_GL_API_OPENGL3) || (gl_api & GST_GL_API_GLES2
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&& gl_major > 3)) {
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gchar *tmp;
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GRegex *regex;
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/* followed by some whitespace */
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regex = g_regex_new ("varying(?=\\s)", 0, 0, NULL);
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tmp = g_regex_replace_literal (regex, str, -1, 0, "in", 0, NULL);
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g_regex_unref (regex);
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return tmp;
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}
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}
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return g_strdup (str);
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}
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static gchar *
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_mangle_frag_color_data (const gchar * str)
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{
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GRegex *regex;
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gchar *ret, *tmp;
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regex = g_regex_new ("gl_FragColor", 0, 0, NULL);
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ret = g_regex_replace_literal (regex, str, -1, 0, "fragColor", 0, NULL);
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g_regex_unref (regex);
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tmp = ret;
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/* search and replace 'gl_FragData[NUM]' into fragColor_NUM */
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regex = g_regex_new ("gl_FragData\\[(\\d+)\\]", 0, 0, NULL);
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ret = g_regex_replace (regex, tmp, -1, 0, "fragColor_\\1", 0, NULL);
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g_regex_unref (regex);
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g_free (tmp);
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return ret;
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}
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static void
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_mangle_version_profile_from_gl_api (GstGLAPI gl_api, gint gl_major,
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gint gl_minor, GstGLSLVersion * version, GstGLSLProfile * profile)
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{
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*version = GST_GLSL_VERSION_NONE;
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*profile = GST_GLSL_PROFILE_NONE;
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if (gl_api & GST_GL_API_OPENGL3) {
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if (gl_major > 3 || gl_minor >= 3) {
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*version = GST_GLSL_VERSION_330;
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*profile = GST_GLSL_PROFILE_CORE;
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} else {
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*version = GST_GLSL_VERSION_150;
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*profile = GST_GLSL_PROFILE_NONE;
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}
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} else if (gl_api & GST_GL_API_GLES2) {
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if (gl_major >= 3) {
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*version = GST_GLSL_VERSION_300;
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*profile = GST_GLSL_PROFILE_ES;
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} else if (gl_major >= 2) {
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*version = GST_GLSL_VERSION_100;
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*profile = GST_GLSL_PROFILE_ES;
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}
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} else if (gl_api & GST_GL_API_OPENGL) {
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*version = GST_GLSL_VERSION_110;
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*profile = GST_GLSL_PROFILE_COMPATIBILITY;
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}
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}
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gchar *
|
||||
_gst_glsl_mangle_shader (const gchar * str, guint shader_type,
|
||||
GstGLTextureTarget from, GstGLTextureTarget to, GstGLAPI gl_api,
|
||||
gint gl_major, gint gl_minor, GstGLSLVersion * version,
|
||||
GstGLSLProfile * profile)
|
||||
{
|
||||
gchar *tmp, *tmp2;
|
||||
|
||||
_mangle_version_profile_from_gl_api (gl_api, gl_major, gl_minor, version,
|
||||
profile);
|
||||
tmp = _mangle_texture_access (str, from, to, gl_api, gl_major, gl_minor);
|
||||
tmp2 = _mangle_sampler_type (tmp, from, to);
|
||||
g_free (tmp);
|
||||
tmp =
|
||||
_mangle_varying_attribute (tmp2, shader_type, gl_api, gl_major, gl_minor);
|
||||
g_free (tmp2);
|
||||
if (shader_type == GL_FRAGMENT_SHADER) {
|
||||
if ((*profile == GST_GLSL_PROFILE_ES && *version >= GST_GLSL_VERSION_300)
|
||||
|| (*profile == GST_GLSL_PROFILE_CORE
|
||||
&& *version >= GST_GLSL_VERSION_150)) {
|
||||
tmp2 = _mangle_frag_color_data (tmp);
|
||||
g_free (tmp);
|
||||
tmp = tmp2;
|
||||
}
|
||||
}
|
||||
return tmp;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -58,6 +58,11 @@ typedef struct _GstGLSLFuncs
|
|||
G_GNUC_INTERNAL gboolean _gst_glsl_funcs_fill (GstGLSLFuncs * vtable, GstGLContext * context);
|
||||
G_GNUC_INTERNAL const gchar * _gst_glsl_shader_string_find_version (const gchar * str);
|
||||
|
||||
G_GNUC_INTERNAL gchar *
|
||||
_gst_glsl_mangle_shader (const gchar * str, guint shader_type, GstGLTextureTarget from,
|
||||
GstGLTextureTarget to, GstGLAPI gl_api, gint gl_major, gint gl_minor,
|
||||
GstGLSLVersion * version, GstGLSLProfile * profile);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_GLSL_PRIVATE_H__ */
|
||||
|
|
|
|||
|
|
@ -31,6 +31,7 @@
|
|||
#endif
|
||||
|
||||
#include "gstglviewconvert.h"
|
||||
#include "gstglsl_private.h"
|
||||
#include <gst/video/gstvideoaffinetransformationmeta.h>
|
||||
|
||||
#define USING_OPENGL(context) (gst_gl_context_check_gl_version (context, GST_GL_API_OPENGL, 1, 0))
|
||||
|
|
@ -159,7 +160,6 @@ static const gchar *fragment_header =
|
|||
"#ifdef GL_ES\n"
|
||||
"precision mediump float;\n"
|
||||
"#endif\n"
|
||||
"varying vec2 v_texcoord;\n"
|
||||
"uniform sampler2D tex_l;\n"
|
||||
"uniform sampler2D tex_r;\n"
|
||||
"uniform float width;\n"
|
||||
|
|
@ -1453,205 +1453,11 @@ _init_view_convert_fbo (GstGLViewConvert * viewconvert)
|
|||
return ret;
|
||||
}
|
||||
|
||||
static gchar *
|
||||
_mangle_texture_access (const gchar * str, GstGLTextureTarget from,
|
||||
GstGLTextureTarget to)
|
||||
{
|
||||
const gchar *from_str = NULL, *to_str = NULL;
|
||||
gchar *ret, *tmp;
|
||||
gchar *regex_find;
|
||||
GRegex *regex;
|
||||
|
||||
if (from == GST_GL_TEXTURE_TARGET_2D)
|
||||
from_str = "texture2D";
|
||||
if (from == GST_GL_TEXTURE_TARGET_RECTANGLE)
|
||||
from_str = "texture2DRect";
|
||||
if (from == GST_GL_TEXTURE_TARGET_EXTERNAL_OES)
|
||||
from_str = "texture2D";
|
||||
|
||||
if (to == GST_GL_TEXTURE_TARGET_2D)
|
||||
to_str = "texture2D";
|
||||
if (to == GST_GL_TEXTURE_TARGET_RECTANGLE)
|
||||
to_str = "texture2DRect";
|
||||
if (to == GST_GL_TEXTURE_TARGET_EXTERNAL_OES)
|
||||
to_str = "texture2D";
|
||||
|
||||
/* followed by any amount of whitespace then a bracket */
|
||||
regex_find = g_strdup_printf ("%s(?=\\s*\\()", from_str);
|
||||
regex = g_regex_new (regex_find, 0, 0, NULL);
|
||||
tmp = g_regex_replace_literal (regex, str, -1, 0, to_str, 0, NULL);
|
||||
g_free (regex_find);
|
||||
g_regex_unref (regex);
|
||||
|
||||
if (tmp) {
|
||||
ret = tmp;
|
||||
} else {
|
||||
GST_FIXME ("Couldn't mangle texture access successfully from %s to %s",
|
||||
from_str, to_str);
|
||||
ret = g_strdup (str);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static gchar *
|
||||
_mangle_sampler_type (const gchar * str, GstGLTextureTarget from,
|
||||
GstGLTextureTarget to)
|
||||
{
|
||||
const gchar *from_str = NULL, *to_str = NULL;
|
||||
gchar *ret, *tmp;
|
||||
gchar *regex_find;
|
||||
GRegex *regex;
|
||||
|
||||
if (from == GST_GL_TEXTURE_TARGET_2D)
|
||||
from_str = "sampler2D";
|
||||
if (from == GST_GL_TEXTURE_TARGET_RECTANGLE)
|
||||
from_str = "sampler2DRect";
|
||||
if (from == GST_GL_TEXTURE_TARGET_EXTERNAL_OES)
|
||||
from_str = "samplerExternalOES";
|
||||
|
||||
if (to == GST_GL_TEXTURE_TARGET_2D)
|
||||
to_str = "sampler2D";
|
||||
if (to == GST_GL_TEXTURE_TARGET_RECTANGLE)
|
||||
to_str = "sampler2DRect";
|
||||
if (to == GST_GL_TEXTURE_TARGET_EXTERNAL_OES)
|
||||
to_str = "samplerExternalOES";
|
||||
|
||||
/* followed by some whitespace */
|
||||
regex_find = g_strdup_printf ("%s(?=\\s)", from_str);
|
||||
regex = g_regex_new (regex_find, 0, 0, NULL);
|
||||
tmp = g_regex_replace_literal (regex, str, -1, 0, to_str, 0, NULL);
|
||||
g_free (regex_find);
|
||||
g_regex_unref (regex);
|
||||
|
||||
if (tmp) {
|
||||
ret = tmp;
|
||||
} else {
|
||||
GST_FIXME ("Couldn't mangle sampler type successfully from %s to %s",
|
||||
from_str, to_str);
|
||||
ret = g_strdup (str);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static gchar *
|
||||
_mangle_varying_attribute (const gchar * str, guint shader_type,
|
||||
GstGLSLVersion version, GstGLSLProfile profile)
|
||||
{
|
||||
if (shader_type == GL_VERTEX_SHADER) {
|
||||
if (profile == GST_GLSL_PROFILE_CORE || (profile == GST_GLSL_PROFILE_ES
|
||||
&& version >= GST_GLSL_VERSION_300)) {
|
||||
gchar *tmp, *tmp2;
|
||||
GRegex *regex;
|
||||
|
||||
/* followed by some whitespace */
|
||||
regex = g_regex_new ("varying(?=\\s)", 0, 0, NULL);
|
||||
tmp = g_regex_replace_literal (regex, str, -1, 0, "out", 0, NULL);
|
||||
g_regex_unref (regex);
|
||||
|
||||
/* followed by some whitespace */
|
||||
regex = g_regex_new ("attribute(?=\\s)", 0, 0, NULL);
|
||||
tmp2 = g_regex_replace_literal (regex, tmp, -1, 0, "in", 0, NULL);
|
||||
g_regex_unref (regex);
|
||||
|
||||
g_free (tmp);
|
||||
return tmp2;
|
||||
}
|
||||
} else if (shader_type == GL_FRAGMENT_SHADER) {
|
||||
if (profile == GST_GLSL_PROFILE_CORE || (profile == GST_GLSL_PROFILE_ES
|
||||
&& version >= GST_GLSL_VERSION_300)) {
|
||||
gchar *tmp;
|
||||
GRegex *regex;
|
||||
|
||||
/* followed by some whitespace */
|
||||
regex = g_regex_new ("varying(?=\\s)", 0, 0, NULL);
|
||||
tmp = g_regex_replace_literal (regex, str, -1, 0, "in", 0, NULL);
|
||||
g_regex_unref (regex);
|
||||
|
||||
return tmp;
|
||||
}
|
||||
}
|
||||
return g_strdup (str);
|
||||
}
|
||||
|
||||
static gchar *
|
||||
_mangle_frag_color_data (const gchar * str)
|
||||
{
|
||||
GRegex *regex;
|
||||
gchar *ret, *tmp;
|
||||
|
||||
regex = g_regex_new ("gl_FragColor", 0, 0, NULL);
|
||||
ret = g_regex_replace_literal (regex, str, -1, 0, "fragColor", 0, NULL);
|
||||
g_regex_unref (regex);
|
||||
|
||||
tmp = ret;
|
||||
/* search and replace 'gl_FragData[NUM]' into fragColor_NUM */
|
||||
regex = g_regex_new ("gl_FragData\\[(\\d+)\\]", 0, 0, NULL);
|
||||
ret = g_regex_replace (regex, tmp, -1, 0, "fragColor_\\1", 0, NULL);
|
||||
g_regex_unref (regex);
|
||||
g_free (tmp);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void
|
||||
_mangle_version_profile_from_gl_api (GstGLAPI gl_api, gint gl_major,
|
||||
gint gl_minor, GstGLSLVersion * version, GstGLSLProfile * profile)
|
||||
{
|
||||
*version = GST_GLSL_VERSION_NONE;
|
||||
*profile = GST_GLSL_PROFILE_NONE;
|
||||
|
||||
if (gl_api & GST_GL_API_OPENGL3) {
|
||||
if (gl_major > 3 || gl_minor >= 3) {
|
||||
*version = GST_GLSL_VERSION_330;
|
||||
*profile = GST_GLSL_PROFILE_CORE;
|
||||
} else {
|
||||
*version = GST_GLSL_VERSION_150;
|
||||
*profile = GST_GLSL_PROFILE_NONE;
|
||||
}
|
||||
} else if (gl_api & GST_GL_API_GLES2) {
|
||||
if (gl_major >= 3) {
|
||||
*version = GST_GLSL_VERSION_300;
|
||||
*profile = GST_GLSL_PROFILE_ES;
|
||||
} else if (gl_major >= 2) {
|
||||
*version = GST_GLSL_VERSION_100;
|
||||
*profile = GST_GLSL_PROFILE_ES;
|
||||
}
|
||||
} else if (gl_api & GST_GL_API_OPENGL) {
|
||||
*version = GST_GLSL_VERSION_110;
|
||||
*profile = GST_GLSL_PROFILE_COMPATIBILITY;
|
||||
}
|
||||
}
|
||||
|
||||
static gchar *
|
||||
_mangle_shader (const gchar * str, guint shader_type, GstGLTextureTarget from,
|
||||
GstGLTextureTarget to, GstGLSLVersion version, GstGLSLProfile profile)
|
||||
{
|
||||
gchar *tmp, *tmp2;
|
||||
|
||||
tmp2 = _mangle_sampler_type (str, from, to);
|
||||
tmp = _mangle_texture_access (tmp2, from, to);
|
||||
g_free (tmp2);
|
||||
tmp2 = _mangle_varying_attribute (tmp, shader_type, version, profile);
|
||||
g_free (tmp);
|
||||
if (shader_type == GL_FRAGMENT_SHADER) {
|
||||
if ((profile == GST_GLSL_PROFILE_ES && version >= GST_GLSL_VERSION_300)
|
||||
|| (profile == GST_GLSL_PROFILE_CORE
|
||||
&& version >= GST_GLSL_VERSION_150)) {
|
||||
tmp = _mangle_frag_color_data (tmp2);
|
||||
g_free (tmp2);
|
||||
tmp2 = tmp;
|
||||
}
|
||||
}
|
||||
|
||||
return tmp2;
|
||||
}
|
||||
|
||||
/* free after use */
|
||||
static gchar *
|
||||
_get_shader_string (GstGLViewConvert * viewconvert, GstGLShader * shader,
|
||||
GstVideoMultiviewMode in_mode, GstVideoMultiviewMode out_mode,
|
||||
GstGLAPI gl_api, gint gl_major, gint gl_minor,
|
||||
GstGLSLVersion version, GstGLSLProfile profile)
|
||||
{
|
||||
const gchar *input_str, *output_str;
|
||||
|
|
@ -1747,14 +1553,29 @@ _get_shader_string (GstGLViewConvert * viewconvert, GstGLShader * shader,
|
|||
}
|
||||
}
|
||||
|
||||
g_string_append (str, "\nvoid main() {\nvec4 l, r;\n");
|
||||
{
|
||||
const gchar *varying = NULL;
|
||||
|
||||
if ((profile == GST_GLSL_PROFILE_ES && version >= GST_GLSL_VERSION_300)
|
||||
|| (profile == GST_GLSL_PROFILE_CORE
|
||||
&& version >= GST_GLSL_VERSION_150)) {
|
||||
varying = "in";
|
||||
} else {
|
||||
varying = "varying";
|
||||
}
|
||||
g_string_append_printf (str,
|
||||
"\n%s vec2 v_texcoord;\nvoid main() {\nvec4 l, r;\n", varying);
|
||||
}
|
||||
|
||||
g_string_append (str, input_str);
|
||||
g_string_append (str, output_str);
|
||||
g_string_append (str, "\n}");
|
||||
tmp = g_string_free (str, FALSE);
|
||||
|
||||
tmp2 = _mangle_shader (tmp, GL_FRAGMENT_SHADER, GST_GL_TEXTURE_TARGET_2D,
|
||||
viewconvert->from_texture_target, version, profile);
|
||||
tmp2 =
|
||||
_gst_glsl_mangle_shader (tmp, GL_FRAGMENT_SHADER,
|
||||
GST_GL_TEXTURE_TARGET_2D, viewconvert->from_texture_target, gl_api,
|
||||
gl_major, gl_minor, &version, &profile);
|
||||
|
||||
return tmp2;
|
||||
}
|
||||
|
|
@ -1912,23 +1733,24 @@ _init_view_convert (GstGLViewConvert * viewconvert)
|
|||
GstGLAPI gl_api;
|
||||
gint gl_major, gl_minor;
|
||||
GstGLSLStage *vert, *frag;
|
||||
gchar *tmp, *version_str;
|
||||
gchar *tmp, *tmp1, *version_str;
|
||||
const gchar *strings[2];
|
||||
GError *error = NULL;
|
||||
|
||||
gl_api = gst_gl_context_get_gl_api (viewconvert->context);
|
||||
gst_gl_context_get_gl_version (viewconvert->context, &gl_major, &gl_minor);
|
||||
_mangle_version_profile_from_gl_api (gl_api, gl_major, gl_minor, &version,
|
||||
&profile);
|
||||
|
||||
tmp = gst_glsl_version_profile_to_string (version, profile);
|
||||
version_str = g_strdup_printf ("#version %s\n", tmp);
|
||||
g_free (tmp);
|
||||
tmp =
|
||||
_gst_glsl_mangle_shader
|
||||
(gst_gl_shader_string_vertex_mat4_texture_transform, GL_VERTEX_SHADER,
|
||||
GST_GL_TEXTURE_TARGET_2D, viewconvert->from_texture_target, gl_api,
|
||||
gl_major, gl_minor, &version, &profile);
|
||||
|
||||
tmp1 = gst_glsl_version_profile_to_string (version, profile);
|
||||
version_str = g_strdup_printf ("#version %s\n", tmp1);
|
||||
g_free (tmp1);
|
||||
strings[0] = version_str;
|
||||
|
||||
tmp = _mangle_shader (gst_gl_shader_string_vertex_mat4_texture_transform,
|
||||
GL_VERTEX_SHADER, GST_GL_TEXTURE_TARGET_2D,
|
||||
viewconvert->from_texture_target, version, profile);
|
||||
strings[1] = tmp;
|
||||
vert =
|
||||
gst_glsl_stage_new_with_strings (viewconvert->context,
|
||||
|
|
@ -1945,7 +1767,7 @@ _init_view_convert (GstGLViewConvert * viewconvert)
|
|||
}
|
||||
|
||||
fragment_source_str = _get_shader_string (viewconvert, viewconvert->shader,
|
||||
in_mode, out_mode, version, profile);
|
||||
in_mode, out_mode, gl_api, gl_major, gl_minor, version, profile);
|
||||
strings[1] = fragment_source_str;
|
||||
|
||||
frag =
|
||||
|
|
|
|||
Loading…
Reference in a new issue