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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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gltestsrc: port to gles2/gl3
This makes gltestsrc work everywhere \o/ - workaround RPi returning invalid values for positive coords in the checker shader - reduce the number of iterations in the mandelbrot shader for gles2 https://bugzilla.gnome.org/show_bug.cgi?id=751540
This commit is contained in:
Matthew Waters
Tim-Philipp Müller
parent
55eaa869ea
commit
cdcd234613
4 changed files with 310 additions and 179 deletions
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@ -40,7 +40,9 @@ libgstopengl_la_SOURCES = \
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gstglfilterapp.c \
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gstglviewconvert.c \
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gstglstereosplit.c \
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gstglstereomix.c
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gstglstereomix.c \
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gltestsrc.c \
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gstgltestsrc.c
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noinst_HEADERS = \
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gstglbasemixer.h \
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@ -63,22 +65,20 @@ noinst_HEADERS = \
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gstglfilterapp.h \
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gstglstereosplit.h \
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gstglstereomix.h \
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gstglviewconvert.h
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gstglviewconvert.h \
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gltestsrc.h
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gstgltestsrc.h
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# full opengl required
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if USE_OPENGL
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libgstopengl_la_SOURCES += \
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gstglfilterglass.c \
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gstgldeinterlace.c \
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gltestsrc.c \
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gstgltestsrc.c \
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gstglmosaic.c
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noinst_HEADERS += \
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gstglfilterglass.h \
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gstgldeinterlace.h \
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gltestsrc.h \
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gstgltestsrc.h \
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gstglmosaic.h \
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effects/gstgleffectscurves.h \
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effects/gstgleffectlumatocurve.h
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@ -1,5 +1,6 @@
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/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2016> Matthew Waters <matthew@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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@ -23,14 +24,16 @@
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#include "gltestsrc.h"
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#define MAX_ATTRIBUTES 4
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struct vts_color_struct
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{
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gfloat R, G, B;
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};
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struct XYZW
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struct XYZWRGB
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{
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gfloat X, Y, Z, W;
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gfloat X, Y, Z, W, R, G, B;
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};
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enum
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@ -87,21 +90,115 @@ static const GLfloat positions[] = {
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static const GLushort indices_quad[] = { 0, 1, 2, 0, 2, 3 };
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/* *INDENT-ON* */
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struct attribute
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{
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const gchar *name;
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gint location;
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guint n_elements;
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GLenum element_type;
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guint offset; /* in bytes */
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guint stride; /* in bytes */
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};
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struct SrcShader
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{
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struct BaseSrcImpl base;
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GstGLShader *shader;
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gint attr_position;
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gint attr_texcoord;
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/* x, y, z, w */
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const gfloat *vertices;
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guint n_vertices;
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guint vao;
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guint vbo;
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guint vbo_indices;
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guint n_attributes;
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struct attribute attributes[MAX_ATTRIBUTES];
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gconstpointer vertices;
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gsize vertices_size;
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const gushort *indices;
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guint index_offset;
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guint n_indices;
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};
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static void
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_bind_buffer (struct SrcShader *src)
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{
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GstGLContext *context = src->base.context;
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const GstGLFuncs *gl = context->gl_vtable;
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gint i;
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gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, src->vbo_indices);
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gl->BindBuffer (GL_ARRAY_BUFFER, src->vbo);
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/* Load the vertex position */
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for (i = 0; i < src->n_attributes; i++) {
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struct attribute *attr = &src->attributes[i];
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if (attr->location == -1)
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attr->location =
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gst_gl_shader_get_attribute_location (src->shader, attr->name);
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gl->VertexAttribPointer (attr->location, attr->n_elements,
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attr->element_type, GL_FALSE, attr->stride,
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(void *) (gintptr) attr->offset);
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gl->EnableVertexAttribArray (attr->location);
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}
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}
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static void
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_unbind_buffer (struct SrcShader *src)
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{
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GstGLContext *context = src->base.context;
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const GstGLFuncs *gl = context->gl_vtable;
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gint i;
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gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
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gl->BindBuffer (GL_ARRAY_BUFFER, 0);
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for (i = 0; i < src->n_attributes; i++) {
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struct attribute *attr = &src->attributes[i];
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gl->DisableVertexAttribArray (attr->location);
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}
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}
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static gboolean
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_src_shader_init (gpointer impl, GstGLContext * context, GstVideoInfo * v_info)
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{
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struct SrcShader *src = impl;
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const GstGLFuncs *gl = context->gl_vtable;
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src->base.context = context;
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if (!src->vbo) {
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if (gl->GenVertexArrays) {
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gl->GenVertexArrays (1, &src->vao);
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gl->BindVertexArray (src->vao);
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}
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gl->GenBuffers (1, &src->vbo);
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gl->BindBuffer (GL_ARRAY_BUFFER, src->vbo);
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gl->BufferData (GL_ARRAY_BUFFER, src->vertices_size,
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src->vertices, GL_STATIC_DRAW);
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gl->GenBuffers (1, &src->vbo_indices);
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gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, src->vbo_indices);
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gl->BufferData (GL_ELEMENT_ARRAY_BUFFER, src->n_indices * sizeof (gushort),
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src->indices, GL_STATIC_DRAW);
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if (gl->GenVertexArrays) {
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_bind_buffer (src);
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gl->BindVertexArray (0);
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}
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gl->BindBuffer (GL_ARRAY_BUFFER, 0);
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gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
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}
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return TRUE;
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}
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static gboolean
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_src_shader_fill_bound_fbo (gpointer impl)
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{
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@ -114,21 +211,47 @@ _src_shader_fill_bound_fbo (gpointer impl)
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gst_gl_shader_use (src->shader);
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if (src->attr_position != -1) {
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gl->VertexAttribPointer (src->attr_position, 4, GL_FLOAT, GL_FALSE, 0,
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src->vertices);
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gl->EnableVertexAttribArray (src->attr_position);
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}
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gl->DrawElements (GL_TRIANGLES, src->n_indices, GL_UNSIGNED_SHORT,
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src->indices);
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if (gl->GenVertexArrays)
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gl->BindVertexArray (src->vao);
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else
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_bind_buffer (src);
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gl->DrawElements (GL_TRIANGLES, src->n_indices, GL_UNSIGNED_SHORT,
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(gpointer) (gintptr) src->index_offset);
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if (gl->GenVertexArrays)
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gl->BindVertexArray (0);
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else
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_unbind_buffer (src);
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if (src->attr_position != -1)
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gl->DisableVertexAttribArray (src->attr_position);
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gst_gl_context_clear_shader (src->base.context);
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return TRUE;
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}
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static void
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_src_shader_deinit (gpointer impl)
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{
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struct SrcShader *src = impl;
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const GstGLFuncs *gl = src->base.context->gl_vtable;
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if (src->shader)
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gst_object_unref (src->shader);
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src->shader = NULL;
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if (src->vao)
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gl->DeleteVertexArrays (1, &src->vao);
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src->vao = 0;
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if (src->vbo)
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gl->DeleteBuffers (1, &src->vbo);
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src->vbo = 0;
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if (src->vbo_indices)
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gl->DeleteBuffers (1, &src->vbo_indices);
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src->vbo_indices = 0;
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}
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/* *INDENT-OFF* */
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static const gchar *smpte_vertex_src =
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"attribute vec4 position;\n"
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@ -182,11 +305,7 @@ struct SrcSMPTE
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GstGLShader *snow_shader;
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GstGLShader *color_shader;
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gint a_color_loc;
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gfloat *vertices;
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gushort *indices;
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struct vts_color_struct *colors;
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gint attr_snow_position;
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};
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static gpointer
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@ -203,68 +322,66 @@ static gboolean
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_src_smpte_init (gpointer impl, GstGLContext * context, GstVideoInfo * v_info)
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{
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struct SrcSMPTE *src = impl;
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struct XYZW *plane_positions;
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struct XYZWRGB *coord;
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gushort *plane_indices;
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struct vts_color_struct *colors;
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GError *error = NULL;
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int color_idx = 0;
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int i;
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src->base.base.context = context;
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colors = g_new0 (struct vts_color_struct, N_QUADS * 4);
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plane_positions = g_new0 (struct XYZW, N_QUADS * 4);
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coord = g_new0 (struct XYZWRGB, N_QUADS * 4);
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plane_indices = g_new0 (gushort, N_QUADS * 6);
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/* top row */
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for (int i = 0; i < 7; i++) {
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plane_positions[color_idx * 4 + 0].X = -1.0f + i * (2.0f / 7.0f);
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plane_positions[color_idx * 4 + 0].Y = 1.0f / 3.0f;
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plane_positions[color_idx * 4 + 1].X = -1.0f + (i + 1) * (2.0f / 7.0f);
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plane_positions[color_idx * 4 + 1].Y = 1.0f / 3.0f;
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plane_positions[color_idx * 4 + 2].X = -1.0f + (i + 1) * (2.0f / 7.0f),
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plane_positions[color_idx * 4 + 2].Y = -1.0f;
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plane_positions[color_idx * 4 + 3].X = -1.0f + i * (2.0f / 7.0f);
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plane_positions[color_idx * 4 + 3].Y = -1.0f;
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coord[color_idx * 4 + 0].X = -1.0f + i * (2.0f / 7.0f);
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coord[color_idx * 4 + 0].Y = 1.0f / 3.0f;
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coord[color_idx * 4 + 1].X = -1.0f + (i + 1) * (2.0f / 7.0f);
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coord[color_idx * 4 + 1].Y = 1.0f / 3.0f;
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coord[color_idx * 4 + 2].X = -1.0f + (i + 1) * (2.0f / 7.0f);
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coord[color_idx * 4 + 2].Y = -1.0f;
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coord[color_idx * 4 + 3].X = -1.0f + i * (2.0f / 7.0f);
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coord[color_idx * 4 + 3].Y = -1.0f;
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color_idx++;
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}
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/* middle row */
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for (int i = 0; i < 7; i++) {
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plane_positions[color_idx * 4 + 0].X = -1.0f + i * (2.0f / 7.0f);
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plane_positions[color_idx * 4 + 0].Y = 0.5f;
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plane_positions[color_idx * 4 + 1].X = -1.0f + (i + 1) * (2.0f / 7.0f);
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plane_positions[color_idx * 4 + 1].Y = 0.5f;
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plane_positions[color_idx * 4 + 2].X = -1.0f + (i + 1) * (2.0f / 7.0f);
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plane_positions[color_idx * 4 + 2].Y = 1.0f / 3.0f;
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plane_positions[color_idx * 4 + 3].X = -1.0f + i * (2.0f / 7.0f);
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plane_positions[color_idx * 4 + 3].Y = 1.0f / 3.0f;
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coord[color_idx * 4 + 0].X = -1.0f + i * (2.0f / 7.0f);
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coord[color_idx * 4 + 0].Y = 0.5f;
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coord[color_idx * 4 + 1].X = -1.0f + (i + 1) * (2.0f / 7.0f);
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coord[color_idx * 4 + 1].Y = 0.5f;
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coord[color_idx * 4 + 2].X = -1.0f + (i + 1) * (2.0f / 7.0f);
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coord[color_idx * 4 + 2].Y = 1.0f / 3.0f;
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coord[color_idx * 4 + 3].X = -1.0f + i * (2.0f / 7.0f);
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coord[color_idx * 4 + 3].Y = 1.0f / 3.0f;
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color_idx++;
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}
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/* bottom row, left three */
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for (int i = 0; i < 3; i++) {
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plane_positions[color_idx * 4 + 0].X = -1.0f + i / 3.0f;
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plane_positions[color_idx * 4 + 0].Y = 1.0f;
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plane_positions[color_idx * 4 + 1].X = -1.0f + (i + 1) / 3.0f;
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plane_positions[color_idx * 4 + 1].Y = 1.0f;
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plane_positions[color_idx * 4 + 2].X = -1.0f + (i + 1) / 3.0f;
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plane_positions[color_idx * 4 + 2].Y = 0.5f;
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plane_positions[color_idx * 4 + 3].X = -1.0f + i / 3.0f;
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plane_positions[color_idx * 4 + 3].Y = 0.5f;
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coord[color_idx * 4 + 0].X = -1.0f + i / 3.0f;
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coord[color_idx * 4 + 0].Y = 1.0f;
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coord[color_idx * 4 + 1].X = -1.0f + (i + 1) / 3.0f;
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coord[color_idx * 4 + 1].Y = 1.0f;
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coord[color_idx * 4 + 2].X = -1.0f + (i + 1) / 3.0f;
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coord[color_idx * 4 + 2].Y = 0.5f;
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coord[color_idx * 4 + 3].X = -1.0f + i / 3.0f;
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coord[color_idx * 4 + 3].Y = 0.5f;
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color_idx++;
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}
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/* bottom row, middle three (the blacks) */
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for (int i = 0; i < 3; i++) {
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plane_positions[color_idx * 4 + 0].X = i / 6.0f;
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plane_positions[color_idx * 4 + 0].Y = 1.0f;
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plane_positions[color_idx * 4 + 1].X = (i + 1) / 6.0f;
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plane_positions[color_idx * 4 + 1].Y = 1.0f;
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plane_positions[color_idx * 4 + 2].X = (i + 1) / 6.0f;
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plane_positions[color_idx * 4 + 2].Y = 0.5f;
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plane_positions[color_idx * 4 + 3].X = i / 6.0f;
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plane_positions[color_idx * 4 + 3].Y = 0.5f;
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coord[color_idx * 4 + 0].X = i / 6.0f;
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coord[color_idx * 4 + 0].Y = 1.0f;
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coord[color_idx * 4 + 1].X = (i + 1) / 6.0f;
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coord[color_idx * 4 + 1].Y = 1.0f;
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coord[color_idx * 4 + 2].X = (i + 1) / 6.0f;
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coord[color_idx * 4 + 2].Y = 0.5f;
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coord[color_idx * 4 + 3].X = i / 6.0f;
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coord[color_idx * 4 + 3].Y = 0.5f;
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color_idx++;
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}
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@ -295,9 +412,11 @@ _src_smpte_init (gpointer impl, GstGLContext * context, GstVideoInfo * v_info)
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}
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for (j = 0; j < 4; j++) {
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plane_positions[i * 4 + j].Z = 0.0f;
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plane_positions[i * 4 + j].W = 1.0f;
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colors[i * 4 + j] = vts_colors[k];
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coord[i * 4 + j].Z = 0.0f;
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coord[i * 4 + j].W = 1.0f;
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coord[i * 4 + j].R = vts_colors[k].R;
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coord[i * 4 + j].G = vts_colors[k].G;
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coord[i * 4 + j].B = vts_colors[k].B;
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}
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for (j = 0; j < 6; j++)
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@ -305,22 +424,24 @@ _src_smpte_init (gpointer impl, GstGLContext * context, GstVideoInfo * v_info)
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}
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/* snow */
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plane_positions[color_idx * 4 + 0].X = 0.5f;
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plane_positions[color_idx * 4 + 0].Y = 1.0f;
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plane_positions[color_idx * 4 + 0].Z = 0.0f;
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plane_positions[color_idx * 4 + 0].W = 1.0f;
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plane_positions[color_idx * 4 + 1].X = 1.0f;
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plane_positions[color_idx * 4 + 1].Y = 1.0f;
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plane_positions[color_idx * 4 + 1].Z = 0.0f;
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plane_positions[color_idx * 4 + 1].W = 1.0f;
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plane_positions[color_idx * 4 + 2].X = 1.0f;
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plane_positions[color_idx * 4 + 2].Y = 0.5f;
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plane_positions[color_idx * 4 + 2].Z = 0.0f;
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plane_positions[color_idx * 4 + 2].W = 1.0f;
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plane_positions[color_idx * 4 + 3].X = 0.5f;
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plane_positions[color_idx * 4 + 3].Y = 0.5f;
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plane_positions[color_idx * 4 + 3].Z = 0.0f;
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plane_positions[color_idx * 4 + 3].W = 1.0f;
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coord[color_idx * 4 + 0].X = 0.5f;
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coord[color_idx * 4 + 0].Y = 1.0f;
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coord[color_idx * 4 + 0].Z = 0.0f;
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coord[color_idx * 4 + 0].W = 1.0f;
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coord[color_idx * 4 + 1].X = 1.0f;
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coord[color_idx * 4 + 1].Y = 1.0f;
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coord[color_idx * 4 + 1].Z = 0.0f;
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coord[color_idx * 4 + 1].W = 1.0f;
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coord[color_idx * 4 + 2].X = 1.0f;
|
||||
coord[color_idx * 4 + 2].Y = 0.5f;
|
||||
coord[color_idx * 4 + 2].Z = 0.0f;
|
||||
coord[color_idx * 4 + 2].W = 1.0f;
|
||||
coord[color_idx * 4 + 3].X = 0.5f;
|
||||
coord[color_idx * 4 + 3].Y = 0.5f;
|
||||
coord[color_idx * 4 + 3].Z = 0.0f;
|
||||
coord[color_idx * 4 + 3].W = 1.0f;
|
||||
for (i = 0; i < 6; i++)
|
||||
plane_indices[color_idx * 6 + i] = color_idx * 4 + indices_quad[i];
|
||||
color_idx++;
|
||||
|
||||
if (src->color_shader)
|
||||
|
|
@ -355,60 +476,59 @@ _src_smpte_init (gpointer impl, GstGLContext * context, GstVideoInfo * v_info)
|
|||
return FALSE;
|
||||
}
|
||||
|
||||
gst_gl_shader_use (src->color_shader);
|
||||
src->base.attr_position =
|
||||
gst_gl_shader_get_attribute_location (src->color_shader, "position");
|
||||
if (src->base.attr_position == -1) {
|
||||
GST_ERROR_OBJECT (src->base.base.src, "No position attribute");
|
||||
return FALSE;
|
||||
}
|
||||
src->attr_snow_position = -1;
|
||||
|
||||
src->a_color_loc =
|
||||
gst_gl_shader_get_attribute_location (src->color_shader, "a_color");
|
||||
/* if (src->a_color_loc == -1) {
|
||||
GST_ERROR_OBJECT (src->base.base.src, "No color attribute");
|
||||
return FALSE;
|
||||
}*/
|
||||
gst_gl_context_clear_shader (src->base.base.context);
|
||||
src->base.n_attributes = 2;
|
||||
|
||||
src->vertices = (gfloat *) plane_positions;
|
||||
src->indices = plane_indices;
|
||||
src->colors = colors;
|
||||
src->base.attributes[0].name = "position";
|
||||
src->base.attributes[0].location = -1;
|
||||
src->base.attributes[0].n_elements = 4;
|
||||
src->base.attributes[0].element_type = GL_FLOAT;
|
||||
src->base.attributes[0].offset = 0;
|
||||
src->base.attributes[0].stride = sizeof (struct XYZWRGB);
|
||||
|
||||
return TRUE;
|
||||
src->base.attributes[1].name = "a_color";
|
||||
src->base.attributes[1].location = -1;
|
||||
src->base.attributes[1].n_elements = 3;
|
||||
src->base.attributes[1].element_type = GL_FLOAT;
|
||||
src->base.attributes[1].offset = 4 * sizeof (gfloat);
|
||||
src->base.attributes[1].stride = sizeof (struct XYZWRGB);
|
||||
|
||||
src->base.shader = src->color_shader;
|
||||
src->base.vertices = (gfloat *) coord;
|
||||
src->base.vertices_size = sizeof (struct XYZWRGB) * N_QUADS * 4;
|
||||
src->base.indices = plane_indices;
|
||||
src->base.n_indices = N_QUADS * 6;
|
||||
|
||||
return _src_shader_init (impl, context, v_info);
|
||||
}
|
||||
|
||||
static gboolean
|
||||
_src_smpte_fill_bound_fbo (gpointer impl)
|
||||
{
|
||||
struct SrcSMPTE *src = impl;
|
||||
const GstGLFuncs *gl = src->base.base.context->gl_vtable;
|
||||
gint attr_color_position = -1;
|
||||
|
||||
if (src->a_color_loc != -1) {
|
||||
gl->VertexAttribPointer (src->a_color_loc, 3, GL_FLOAT, GL_FALSE, 0,
|
||||
src->colors);
|
||||
gl->EnableVertexAttribArray (src->a_color_loc);
|
||||
}
|
||||
src->base.n_attributes = 2;
|
||||
src->base.shader = src->color_shader;
|
||||
src->base.vertices = src->vertices;
|
||||
src->base.n_vertices = (N_QUADS - 1) * 4 * 4;
|
||||
src->base.indices = src->indices;
|
||||
src->base.n_indices = (N_QUADS - 1) * 6;
|
||||
src->base.index_offset = 0;
|
||||
if (!_src_shader_fill_bound_fbo (impl))
|
||||
return FALSE;
|
||||
if (src->a_color_loc != -1)
|
||||
gl->DisableVertexAttribArray (src->a_color_loc);
|
||||
attr_color_position = src->base.attributes[0].location;
|
||||
|
||||
src->base.attributes[0].location = src->attr_snow_position;
|
||||
src->base.n_attributes = 1;
|
||||
src->base.shader = src->snow_shader;
|
||||
src->base.vertices = &src->vertices[src->base.n_vertices];
|
||||
src->base.n_vertices = 4;
|
||||
src->base.indices = src->indices;
|
||||
src->base.n_indices = 6;
|
||||
src->base.index_offset = (N_QUADS - 1) * 6 * sizeof (gushort);
|
||||
gst_gl_shader_use (src->snow_shader);
|
||||
gst_gl_shader_set_uniform_1f (src->snow_shader, "time",
|
||||
(gfloat) src->base.base.src->running_time / GST_SECOND);
|
||||
if (!_src_shader_fill_bound_fbo (impl))
|
||||
return FALSE;
|
||||
src->attr_snow_position = src->base.attributes[0].location;
|
||||
src->base.attributes[0].location = attr_color_position;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
|
@ -421,13 +541,10 @@ _src_smpte_free (gpointer impl)
|
|||
if (!impl)
|
||||
return;
|
||||
|
||||
if (src->base.shader)
|
||||
gst_object_unref (src->base.shader);
|
||||
src->base.shader = NULL;
|
||||
_src_shader_deinit (impl);
|
||||
|
||||
g_free (src->vertices);
|
||||
g_free (src->indices);
|
||||
g_free (src->colors);
|
||||
g_free ((gpointer) src->base.vertices);
|
||||
g_free ((gpointer) src->base.indices);
|
||||
|
||||
g_free (impl);
|
||||
}
|
||||
|
|
@ -545,9 +662,13 @@ static const struct SrcFuncs src_blink = {
|
|||
|
||||
/* *INDENT-OFF* */
|
||||
static const gchar *checkers_vertex_src = "attribute vec4 position;\n"
|
||||
"varying vec2 uv;\n"
|
||||
"void main()\n"
|
||||
"{\n"
|
||||
" gl_Position = position;\n"
|
||||
" gl_Position = position;\n"
|
||||
/* RPi gives incorrect results for positive uv (plus it makes us start on
|
||||
* the right pixel color i.e. red) */
|
||||
" uv = position.xy - 1.0;\n"
|
||||
"}";
|
||||
|
||||
static const gchar *checkers_fragment_src =
|
||||
|
|
@ -555,14 +676,16 @@ static const gchar *checkers_fragment_src =
|
|||
"precision mediump float;\n"
|
||||
"#endif\n"
|
||||
"uniform float checker_width;\n"
|
||||
"uniform float width;\n"
|
||||
"uniform float height;\n"
|
||||
"varying vec2 uv;\n"
|
||||
"void main()\n"
|
||||
"{\n"
|
||||
" vec2 xy_index= floor((gl_FragCoord.xy-vec2(0.5,0.5))/checker_width);\n"
|
||||
" vec2 xy_mod=mod(xy_index,vec2(2.0,2.0));\n"
|
||||
" float result=mod(xy_mod.x+xy_mod.y,2.0);\n"
|
||||
" gl_FragColor.r=step(result,0.5);\n"
|
||||
" gl_FragColor.g=1.0-gl_FragColor.r;\n"
|
||||
" gl_FragColor.ba=vec2(0,1);\n"
|
||||
" vec2 xy_mod = floor (0.5 * uv * vec2(width, height) / (checker_width));\n"
|
||||
" float result = mod (xy_mod.x + xy_mod.y, 2.0);\n"
|
||||
" gl_FragColor.r = step (result, 0.5);\n"
|
||||
" gl_FragColor.g = 1.0 - gl_FragColor.r;\n"
|
||||
" gl_FragColor.ba = vec2(0.0, 1.0);\n"
|
||||
"}";
|
||||
/* *INDENT-ON* */
|
||||
|
||||
|
|
@ -598,23 +721,30 @@ _src_checkers_init (gpointer impl, GstGLContext * context,
|
|||
return FALSE;
|
||||
}
|
||||
|
||||
src->base.attr_position =
|
||||
gst_gl_shader_get_attribute_location (src->base.shader, "position");
|
||||
if (src->base.attr_position == -1) {
|
||||
GST_ERROR_OBJECT (src->base.base.src, "No position attribute");
|
||||
return FALSE;
|
||||
}
|
||||
src->base.n_attributes = 1;
|
||||
|
||||
src->base.attributes[0].name = "position";
|
||||
src->base.attributes[0].location = -1;
|
||||
src->base.attributes[0].n_elements = 4;
|
||||
src->base.attributes[0].element_type = GL_FLOAT;
|
||||
src->base.attributes[0].offset = 0;
|
||||
src->base.attributes[0].stride = 4 * sizeof (gfloat);
|
||||
|
||||
src->base.vertices = positions;
|
||||
src->base.n_vertices = 4;
|
||||
src->base.vertices_size = sizeof (positions);
|
||||
src->base.indices = indices_quad;
|
||||
src->base.n_indices = 6;
|
||||
|
||||
gst_gl_shader_use (src->base.shader);
|
||||
gst_gl_shader_set_uniform_1f (src->base.shader, "checker_width",
|
||||
src->checker_width);
|
||||
gst_gl_shader_set_uniform_1f (src->base.shader, "width",
|
||||
(gfloat) GST_VIDEO_INFO_WIDTH (v_info));
|
||||
gst_gl_shader_set_uniform_1f (src->base.shader, "height",
|
||||
(gfloat) GST_VIDEO_INFO_HEIGHT (v_info));
|
||||
gst_gl_context_clear_shader (src->base.base.context);
|
||||
|
||||
return TRUE;
|
||||
return _src_shader_init (impl, context, v_info);
|
||||
}
|
||||
|
||||
static void
|
||||
|
|
@ -625,9 +755,7 @@ _src_checkers_free (gpointer impl)
|
|||
if (!src)
|
||||
return;
|
||||
|
||||
if (src->base.shader)
|
||||
gst_object_unref (src->base.shader);
|
||||
src->base.shader = NULL;
|
||||
_src_shader_deinit (impl);
|
||||
|
||||
g_free (impl);
|
||||
}
|
||||
|
|
@ -687,18 +815,21 @@ _src_snow_init (gpointer impl, GstGLContext * context, GstVideoInfo * v_info)
|
|||
return FALSE;
|
||||
}
|
||||
|
||||
src->attr_position =
|
||||
gst_gl_shader_get_attribute_location (src->shader, "position");
|
||||
if (src->attr_position == -1) {
|
||||
GST_ERROR_OBJECT (src->base.src, "No position attribute");
|
||||
return FALSE;
|
||||
}
|
||||
src->n_attributes = 1;
|
||||
|
||||
src->attributes[0].name = "position";
|
||||
src->attributes[0].location = -1;
|
||||
src->attributes[0].n_elements = 4;
|
||||
src->attributes[0].element_type = GL_FLOAT;
|
||||
src->attributes[0].offset = 0;
|
||||
src->attributes[0].stride = 4 * sizeof (gfloat);
|
||||
|
||||
src->vertices = positions;
|
||||
src->n_vertices = 4;
|
||||
src->vertices_size = sizeof (positions);
|
||||
src->indices = indices_quad;
|
||||
src->n_indices = 6;
|
||||
|
||||
return TRUE;
|
||||
return _src_shader_init (impl, context, v_info);
|
||||
}
|
||||
|
||||
static gboolean
|
||||
|
|
@ -724,9 +855,7 @@ _src_snow_free (gpointer impl)
|
|||
if (!src)
|
||||
return;
|
||||
|
||||
if (src->shader)
|
||||
gst_object_unref (src->shader);
|
||||
src->shader = NULL;
|
||||
_src_shader_deinit (impl);
|
||||
|
||||
g_free (impl);
|
||||
}
|
||||
|
|
@ -783,7 +912,7 @@ static const gchar *mandelbrot_fragment_src =
|
|||
"}\n"
|
||||
"vec4 iterate_pixel(vec2 position) {\n"
|
||||
" vec2 c = vec2(0);\n"
|
||||
" for (int i=0; i < 100; i++) {\n"
|
||||
" for (int i=0; i < 20; i++) {\n"
|
||||
" if (c.x*c.x + c.y*c.y > 2.0*2.0)\n"
|
||||
" return i_to_rgb(i);\n"
|
||||
" c = mandelbrot(c, position);\n"
|
||||
|
|
@ -820,14 +949,17 @@ _src_mandelbrot_init (gpointer impl, GstGLContext * context,
|
|||
return FALSE;
|
||||
}
|
||||
|
||||
src->attr_position =
|
||||
gst_gl_shader_get_attribute_location (src->shader, "position");
|
||||
if (src->attr_position == -1) {
|
||||
GST_ERROR_OBJECT (src->base.src, "No position attribute");
|
||||
return FALSE;
|
||||
}
|
||||
src->n_attributes = 1;
|
||||
|
||||
src->attributes[0].name = "position";
|
||||
src->attributes[0].location = -1;
|
||||
src->attributes[0].n_elements = 4;
|
||||
src->attributes[0].element_type = GL_FLOAT;
|
||||
src->attributes[0].offset = 0;
|
||||
src->attributes[0].stride = 4 * sizeof (gfloat);
|
||||
|
||||
src->vertices = positions;
|
||||
src->n_vertices = 4;
|
||||
src->vertices_size = sizeof (positions);
|
||||
src->indices = indices_quad;
|
||||
src->n_indices = 6;
|
||||
|
||||
|
|
@ -837,7 +969,7 @@ _src_mandelbrot_init (gpointer impl, GstGLContext * context,
|
|||
(gfloat) GST_VIDEO_INFO_HEIGHT (v_info));
|
||||
gst_gl_context_clear_shader (src->base.context);
|
||||
|
||||
return TRUE;
|
||||
return _src_shader_init (impl, context, v_info);
|
||||
}
|
||||
|
||||
static gboolean
|
||||
|
|
@ -863,9 +995,7 @@ _src_mandelbrot_free (gpointer impl)
|
|||
if (!src)
|
||||
return;
|
||||
|
||||
if (src->shader)
|
||||
gst_object_unref (src->shader);
|
||||
src->shader = NULL;
|
||||
_src_shader_deinit (impl);
|
||||
|
||||
g_free (impl);
|
||||
}
|
||||
|
|
@ -942,14 +1072,17 @@ _src_circular_init (gpointer impl, GstGLContext * context,
|
|||
return FALSE;
|
||||
}
|
||||
|
||||
src->attr_position =
|
||||
gst_gl_shader_get_attribute_location (src->shader, "position");
|
||||
if (src->attr_position == -1) {
|
||||
GST_ERROR_OBJECT (src->base.src, "No position attribute");
|
||||
return FALSE;
|
||||
}
|
||||
src->n_attributes = 1;
|
||||
|
||||
src->attributes[0].name = "position";
|
||||
src->attributes[0].location = -1;
|
||||
src->attributes[0].n_elements = 4;
|
||||
src->attributes[0].element_type = GL_FLOAT;
|
||||
src->attributes[0].offset = 0;
|
||||
src->attributes[0].stride = 4 * sizeof (gfloat);
|
||||
|
||||
src->vertices = positions;
|
||||
src->n_vertices = 4;
|
||||
src->vertices_size = sizeof (positions);
|
||||
src->indices = indices_quad;
|
||||
src->n_indices = 6;
|
||||
|
||||
|
|
@ -959,7 +1092,7 @@ _src_circular_init (gpointer impl, GstGLContext * context,
|
|||
(gfloat) GST_VIDEO_INFO_HEIGHT (v_info));
|
||||
gst_gl_context_clear_shader (src->base.context);
|
||||
|
||||
return TRUE;
|
||||
return _src_shader_init (impl, context, v_info);
|
||||
}
|
||||
|
||||
static void
|
||||
|
|
@ -970,9 +1103,7 @@ _src_circular_free (gpointer impl)
|
|||
if (!src)
|
||||
return;
|
||||
|
||||
if (src->shader)
|
||||
gst_object_unref (src->shader);
|
||||
src->shader = NULL;
|
||||
_src_shader_deinit (impl);
|
||||
|
||||
g_free (impl);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -49,7 +49,7 @@
|
|||
#include <gst/gst-i18n-plugin.h>
|
||||
|
||||
#define USE_PEER_BUFFERALLOC
|
||||
#define SUPPORTED_GL_APIS GST_GL_API_OPENGL
|
||||
#define SUPPORTED_GL_APIS (GST_GL_API_OPENGL | GST_GL_API_OPENGL3 | GST_GL_API_GLES2)
|
||||
|
||||
GST_DEBUG_CATEGORY_STATIC (gl_test_src_debug);
|
||||
#define GST_CAT_DEFAULT gl_test_src_debug
|
||||
|
|
|
|||
|
|
@ -62,6 +62,7 @@
|
|||
#include "gstglstereosplit.h"
|
||||
#include "gstglstereomix.h"
|
||||
#include "gstglviewconvert.h"
|
||||
#include "gstgltestsrc.h"
|
||||
|
||||
#if HAVE_GRAPHENE
|
||||
#include "gstgltransformation.h"
|
||||
|
|
@ -74,7 +75,6 @@
|
|||
#endif /* HAVE_JPEG */
|
||||
|
||||
#if GST_GL_HAVE_OPENGL
|
||||
#include "gstgltestsrc.h"
|
||||
#include "gstglfilterglass.h"
|
||||
/* #include "gstglfilterreflectedscreen.h" */
|
||||
#include "gstgldeinterlace.h"
|
||||
|
|
@ -226,6 +226,11 @@ plugin_init (GstPlugin * plugin)
|
|||
GST_RANK_NONE, GST_TYPE_GL_STEREO_MIX)) {
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (!gst_element_register (plugin, "gltestsrc",
|
||||
GST_RANK_NONE, GST_TYPE_GL_TEST_SRC)) {
|
||||
return FALSE;
|
||||
}
|
||||
#if HAVE_JPEG
|
||||
#if HAVE_PNG
|
||||
if (!gst_element_register (plugin, "gloverlay",
|
||||
|
|
@ -235,11 +240,6 @@ plugin_init (GstPlugin * plugin)
|
|||
#endif /* HAVE_PNG */
|
||||
#endif /* HAVE_JPEG */
|
||||
#if GST_GL_HAVE_OPENGL
|
||||
if (!gst_element_register (plugin, "gltestsrc",
|
||||
GST_RANK_NONE, GST_TYPE_GL_TEST_SRC)) {
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (!gst_element_register (plugin, "glfilterglass",
|
||||
GST_RANK_NONE, GST_TYPE_GL_FILTER_GLASS)) {
|
||||
return FALSE;
|
||||
|
|
|
|||
Loading…
Reference in a new issue