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gl: element buffers are part of vao state

Browse source 
Use them as such.  They are also required for GL3 core profile support
with glDrawElements on OS X.
This commit is contained in:
Matthew Waters 2015-05-01 12:04:28 +10:00 committed by Tim-Philipp Müller
parent cc587ce1f1
commit 65c57b77ff
13 changed files with 174 additions and 70 deletions
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49
ext/gl/gstglfiltercube.c
View file

@ -293,6 +293,11 @@ gst_gl_filter_cube_reset_gl (GstGLFilter * filter)
cube_filter->vertex_buffer = 0;
}
if (cube_filter->vbo_indices) {
gl->DeleteBuffers (1, &cube_filter->vbo_indices);
cube_filter->vbo_indices = 0;
}
if (cube_filter->shader) {
gst_gl_context_del_shader (GST_GL_BASE_FILTER (filter)->context,
cube_filter->shader);
@ -380,6 +385,21 @@ static const GLfloat vertices[] = {
-1.0, 1.0, -1.0, 0.0, 1.0,
-1.0, 1.0, 1.0, 0.0, 0.0
};
static const GLushort indices[] = {
0, 1, 2,
0, 2, 3,
4, 5, 6,
4, 6, 7,
8, 9, 10,
8, 10, 11,
12, 13, 14,
12, 14, 15,
16, 17, 18,
16, 18, 19,
20, 21, 22,
20, 22, 23
};
/* *INDENT-ON* */
static void
@ -387,6 +407,7 @@ _bind_buffer (GstGLFilterCube * cube_filter)
{
const GstGLFuncs *gl = GST_GL_BASE_FILTER (cube_filter)->context->gl_vtable;
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, cube_filter->vbo_indices);
gl->BindBuffer (GL_ARRAY_BUFFER, cube_filter->vertex_buffer);
cube_filter->attr_position =
@ -412,6 +433,7 @@ _unbind_buffer (GstGLFilterCube * cube_filter)
{
const GstGLFuncs *gl = GST_GL_BASE_FILTER (cube_filter)->context->gl_vtable;
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
gl->DisableVertexAttribArray (cube_filter->attr_position);
@ -429,21 +451,6 @@ _callback (gpointer stuff)
static GLfloat yrot = 0;
static GLfloat zrot = 0;
GLushort indices[] = {
0, 1, 2,
0, 2, 3,
4, 5, 6,
4, 6, 7,
8, 9, 10,
8, 10, 11,
12, 13, 14,
12, 14, 15,
16, 17, 18,
16, 18, 19,
20, 21, 22,
20, 22, 23
};
const GLfloat matrix[] = {
0.5f, 0.0f, 0.0f, 0.0f,
0.0f, 0.5f, 0.0f, 0.0f,
@ -478,10 +485,18 @@ _callback (gpointer stuff)
gl->BufferData (GL_ARRAY_BUFFER, 6 * 4 * 5 * sizeof (GLfloat), vertices,
GL_STATIC_DRAW);
gl->GenBuffers (1, &cube_filter->vbo_indices);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, cube_filter->vbo_indices);
gl->BufferData (GL_ELEMENT_ARRAY_BUFFER, sizeof (indices), indices,
GL_STATIC_DRAW);
if (gl->GenVertexArrays) {
_bind_buffer (cube_filter);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
gl->BindVertexArray (0);
}
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
}
if (gl->GenVertexArrays)
@ -489,7 +504,7 @@ _callback (gpointer stuff)
else
_bind_buffer (cube_filter);
gl->DrawElements (GL_TRIANGLES, 36, GL_UNSIGNED_SHORT, indices);
gl->DrawElements (GL_TRIANGLES, 36, GL_UNSIGNED_SHORT, 0);
if (gl->GenVertexArrays)
gl->BindVertexArray (0);

1
ext/gl/gstglfiltercube.h
View file

@ -54,6 +54,7 @@ struct _GstGLFilterCube
guint in_tex;
GLuint vao;
GLuint vbo_indices;
GLuint vertex_buffer;
GLint attr_position;
GLint attr_texture;

36
ext/gl/gstglimagesink.c
View file

@ -1348,6 +1348,8 @@ static const GLfloat vertices[] = {
-1.0f, -1.0f, 0.0f, 0.0f, 1.0f,
1.0f, -1.0f, 0.0f, 1.0f, 1.0f
};
static const GLushort indices[] = { 0, 1, 2, 0, 2, 3 };
/* *INDENT-ON* */
static void
@ -1355,9 +1357,8 @@ _bind_buffer (GstGLImageSink * gl_sink)
{
const GstGLFuncs *gl = gl_sink->context->gl_vtable;
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, gl_sink->vbo_indices);
gl->BindBuffer (GL_ARRAY_BUFFER, gl_sink->vertex_buffer);
gl->BufferData (GL_ARRAY_BUFFER, 4 * 5 * sizeof (GLfloat), vertices,
GL_STATIC_DRAW);
/* Load the vertex position */
gl->VertexAttribPointer (gl_sink->attr_position, 3, GL_FLOAT, GL_FALSE,
@ -1376,6 +1377,7 @@ _unbind_buffer (GstGLImageSink * gl_sink)
{
const GstGLFuncs *gl = gl_sink->context->gl_vtable;
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
gl->DisableVertexAttribArray (gl_sink->attr_position);
@ -1400,15 +1402,27 @@ gst_glimage_sink_thread_init_redisplay (GstGLImageSink * gl_sink)
gl->BindVertexArray (gl_sink->vao);
}
gl->GenBuffers (1, &gl_sink->vertex_buffer);
_bind_buffer (gl_sink);
if (!gl_sink->vertex_buffer) {
gl->GenBuffers (1, &gl_sink->vertex_buffer);
gl->BindBuffer (GL_ARRAY_BUFFER, gl_sink->vertex_buffer);
gl->BufferData (GL_ARRAY_BUFFER, 4 * 5 * sizeof (GLfloat), vertices,
GL_STATIC_DRAW);
}
if (!gl_sink->vbo_indices) {
gl->GenBuffers (1, &gl_sink->vbo_indices);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, gl_sink->vbo_indices);
gl->BufferData (GL_ELEMENT_ARRAY_BUFFER, sizeof (indices), indices,
GL_STATIC_DRAW);
}
if (gl->GenVertexArrays) {
_bind_buffer (gl_sink);
gl->BindVertexArray (0);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
} else {
_unbind_buffer (gl_sink);
}
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
}
static void
@ -1425,6 +1439,11 @@ gst_glimage_sink_cleanup_glthread (GstGLImageSink * gl_sink)
gl->DeleteVertexArrays (1, &gl_sink->vao);
gl_sink->vao = 0;
}
if (gl_sink->vbo_indices) {
gl->DeleteVertexArrays (1, &gl_sink->vbo_indices);
gl_sink->vbo_indices = 0;
}
}
static void
@ -1537,7 +1556,6 @@ gst_glimage_sink_on_draw (GstGLImageSink * gl_sink)
if (!do_redisplay) {
gfloat alpha = gl_sink->ignore_alpha ? 1.0f : 0.0f;
GLushort indices[] = { 0, 1, 2, 0, 2, 3 };
gl->ClearColor (0.0, 0.0, 0.0, alpha);
gl->Clear (GL_COLOR_BUFFER_BIT);
@ -1560,7 +1578,7 @@ gst_glimage_sink_on_draw (GstGLImageSink * gl_sink)
gl->BindTexture (GL_TEXTURE_2D, gl_sink->redisplay_texture);
gst_gl_shader_set_uniform_1i (gl_sink->redisplay_shader, "tex", 0);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
gst_gl_context_clear_shader (gl_sink->context);

1
ext/gl/gstglimagesink.h
View file

@ -89,6 +89,7 @@ struct _GstGLImageSink
GstGLShader *redisplay_shader;
GLuint vao;
GLuint vbo_indices;
GLuint vertex_buffer;
GLint attr_position;
GLint attr_texture;

48
ext/gl/gstgloverlay.c
View file

@ -158,6 +158,11 @@ gst_gl_overlay_reset_gl_resources (GstGLFilter * filter)
overlay->vbo = 0;
}
if (overlay->vbo_indices) {
gl->DeleteBuffers (1, &overlay->vbo_indices);
overlay->vbo_indices = 0;
}
if (overlay->overlay_vao) {
gl->DeleteVertexArrays (1, &overlay->overlay_vao);
overlay->overlay_vao = 0;
@ -369,6 +374,7 @@ _unbind_buffer (GstGLOverlay * overlay)
{
const GstGLFuncs *gl = GST_GL_BASE_FILTER (overlay)->context->gl_vtable;
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
gl->DisableVertexAttribArray (overlay->attr_position);
@ -380,6 +386,7 @@ _bind_buffer (GstGLOverlay * overlay, GLuint vbo)
{
const GstGLFuncs *gl = GST_GL_BASE_FILTER (overlay)->context->gl_vtable;
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, overlay->vbo_indices);
gl->BindBuffer (GL_ARRAY_BUFFER, vbo);
gl->EnableVertexAttribArray (overlay->attr_position);
@ -399,6 +406,8 @@ float v_vertices[] = {
1.0f, 1.0f, 0.0f, 1.0f, 1.0f,
-1.0f, 1.0f, 0.0f, 0.0f, 1.0f,
};
static const GLushort indices[] = { 0, 1, 2, 0, 2, 3, };
/* *INDENT-ON* */
static void
@ -411,11 +420,6 @@ gst_gl_overlay_callback (gint width, gint height, guint texture, gpointer stuff)
gboolean memory_mapped = FALSE;
const GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
GLushort indices[] = {
0, 1, 2,
0, 2, 3,
};
#if GST_GL_HAVE_OPENGL
if (gst_gl_context_get_gl_api (GST_GL_BASE_FILTER (filter)->context) &
GST_GL_API_OPENGL) {
@ -453,8 +457,18 @@ gst_gl_overlay_callback (gint width, gint height, guint texture, gpointer stuff)
gl->BufferData (GL_ARRAY_BUFFER, 4 * 5 * sizeof (GLfloat), v_vertices,
GL_STATIC_DRAW);
if (gl->GenVertexArrays)
gl->GenBuffers (1, &overlay->vbo_indices);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, overlay->vbo_indices);
gl->BufferData (GL_ELEMENT_ARRAY_BUFFER, sizeof (indices), indices,
GL_STATIC_DRAW);
if (gl->GenVertexArrays) {
_bind_buffer (overlay, overlay->vbo);
gl->BindVertexArray (0);
}
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
}
if (gl->GenVertexArrays)
@ -462,7 +476,7 @@ gst_gl_overlay_callback (gint width, gint height, guint texture, gpointer stuff)
else
_bind_buffer (overlay, overlay->vbo);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
if (!overlay->image_memory)
goto out;
@ -482,9 +496,14 @@ gst_gl_overlay_callback (gint width, gint height, guint texture, gpointer stuff)
gl->GenBuffers (1, &overlay->overlay_vbo);
gl->BindBuffer (GL_ARRAY_BUFFER, overlay->overlay_vbo);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, overlay->vbo_indices);
overlay->geometry_change = TRUE;
}
if (gl->GenVertexArrays) {
gl->BindVertexArray (overlay->overlay_vao);
}
if (overlay->geometry_change) {
gint render_width, render_height;
gfloat x, y, image_width, image_height;
@ -524,19 +543,20 @@ gst_gl_overlay_callback (gint width, gint height, guint texture, gpointer stuff)
GL_STATIC_DRAW);
}
if (gl->GenVertexArrays) {
if (overlay->geometry_change)
_bind_buffer (overlay, overlay->overlay_vbo);
gl->BindVertexArray (overlay->overlay_vao);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
} else {
if (!gl->GenVertexArrays || overlay->geometry_change) {
_bind_buffer (overlay, overlay->overlay_vbo);
}
gl->BindTexture (GL_TEXTURE_2D, image_tex);
gst_gl_shader_set_uniform_1f (overlay->shader, "alpha", overlay->alpha);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
gl->Enable (GL_BLEND);
gl->BlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
gl->BlendEquation (GL_FUNC_ADD);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
gl->Disable (GL_BLEND);
out:
if (gl->GenVertexArrays) {

1
ext/gl/gstgloverlay.h
View file

@ -67,6 +67,7 @@ struct _GstGLOverlay
GLuint overlay_vao;
GLuint vbo;
GLuint overlay_vbo;
GLuint vbo_indices;
GLuint attr_position;
GLuint attr_texture;
};

21
ext/gl/gstgltransformation.c
View file

@ -407,6 +407,11 @@ gst_gl_transformation_reset_gl (GstGLFilter * filter)
transformation->vertex_buffer = 0;
}
if (transformation->vbo_indices) {
gl->DeleteBuffers (1, &transformation->vbo_indices);
transformation->vbo_indices = 0;
}
if (transformation->shader) {
gst_object_unref (transformation->shader);
transformation->shader = NULL;
@ -464,6 +469,7 @@ gst_gl_transformation_filter_texture (GstGLFilter * filter, guint in_tex,
return TRUE;
}
static const GLushort indices[] = { 0, 1, 2, 3, 0 };
static void
_upload_vertices (GstGLTransformation * transformation)
@ -492,6 +498,7 @@ _bind_buffer (GstGLTransformation * transformation)
const GstGLFuncs *gl =
GST_GL_BASE_FILTER (transformation)->context->gl_vtable;
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, transformation->vbo_indices);
gl->BindBuffer (GL_ARRAY_BUFFER, transformation->vertex_buffer);
/* Load the vertex position */
@ -512,6 +519,7 @@ _unbind_buffer (GstGLTransformation * transformation)
const GstGLFuncs *gl =
GST_GL_BASE_FILTER (transformation)->context->gl_vtable;
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
gl->DisableVertexAttribArray (transformation->attr_position);
@ -525,8 +533,6 @@ gst_gl_transformation_callback (gpointer stuff)
GstGLTransformation *transformation = GST_GL_TRANSFORMATION (filter);
GstGLFuncs *gl = GST_GL_BASE_FILTER (filter)->context->gl_vtable;
GLushort indices[] = { 0, 1, 2, 3, 0 };
GLfloat temp_matrix[16];
gst_gl_context_clear_shader (GST_GL_BASE_FILTER (filter)->context);
@ -559,6 +565,12 @@ gst_gl_transformation_callback (gpointer stuff)
}
gl->GenBuffers (1, &transformation->vertex_buffer);
gl->GenBuffers (1, &transformation->vbo_indices);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, transformation->vbo_indices);
gl->BufferData (GL_ELEMENT_ARRAY_BUFFER, sizeof (indices), indices,
GL_STATIC_DRAW);
transformation->caps_change = TRUE;
}
@ -569,8 +581,11 @@ gst_gl_transformation_callback (gpointer stuff)
_upload_vertices (transformation);
_bind_buffer (transformation);
if (gl->GenVertexArrays)
if (gl->GenVertexArrays) {
gl->BindVertexArray (0);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
}
} else if (!gl->GenVertexArrays) {
_bind_buffer (transformation);
}

1
ext/gl/gstgltransformation.h
View file

@ -42,6 +42,7 @@ struct _GstGLTransformation
GstGLShader *shader;
GLuint vao;
GLuint vbo_indices;
GLuint vertex_buffer;
GLint attr_position;
GLint attr_texture;

41
ext/gl/gstglvideomixer.c
View file

@ -733,6 +733,11 @@ _reset_gl (GstGLContext * context, GstGLVideoMixer * video_mixer)
video_mixer->vao = 0;
}
if (video_mixer->vbo_indices) {
gl->DeleteBuffers (1, &video_mixer->vbo_indices);
video_mixer->vbo_indices = 0;
}
gst_aggregator_iterate_sinkpads (GST_AGGREGATOR (video_mixer), _reset_pad_gl,
NULL);
}
@ -790,6 +795,21 @@ gst_gl_video_mixer_process_textures (GstGLMixer * mix, GPtrArray * frames,
return TRUE;
}
static const GLushort indices[] = { 0, 1, 2, 0, 2, 3 };
static void
_init_vbo_indices (GstGLVideoMixer * mixer)
{
const GstGLFuncs *gl = GST_GL_BASE_MIXER (mixer)->context->gl_vtable;
if (!mixer->vbo_indices) {
gl->GenBuffers (1, &mixer->vbo_indices);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, mixer->vbo_indices);
gl->BufferData (GL_ELEMENT_ARRAY_BUFFER, sizeof (indices), indices,
GL_STATIC_DRAW);
}
}
static gboolean
_draw_checker_background (GstGLVideoMixer * video_mixer)
{
@ -797,10 +817,6 @@ _draw_checker_background (GstGLVideoMixer * video_mixer)
const GstGLFuncs *gl = GST_GL_BASE_MIXER (mixer)->context->gl_vtable;
gint attr_position_loc = 0;
const GLushort indices[] = {
0, 1, 2,
0, 2, 3
};
/* *INDENT-OFF* */
gfloat v_vertices[] = {
-1.0,-1.0,-1.0f,
@ -820,12 +836,15 @@ _draw_checker_background (GstGLVideoMixer * video_mixer)
attr_position_loc =
gst_gl_shader_get_attribute_location (video_mixer->checker, "a_position");
_init_vbo_indices (video_mixer);
if (!video_mixer->checker_vbo) {
gl->GenBuffers (1, &video_mixer->checker_vbo);
gl->BindBuffer (GL_ARRAY_BUFFER, video_mixer->checker_vbo);
gl->BufferData (GL_ARRAY_BUFFER, 4 * 3 * sizeof (GLfloat), v_vertices,
GL_STATIC_DRAW);
} else {
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, video_mixer->vbo_indices);
gl->BindBuffer (GL_ARRAY_BUFFER, video_mixer->checker_vbo);
}
@ -834,9 +853,10 @@ _draw_checker_background (GstGLVideoMixer * video_mixer)
gl->EnableVertexAttribArray (attr_position_loc);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
gl->DisableVertexAttribArray (attr_position_loc);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
return TRUE;
@ -884,11 +904,6 @@ gst_gl_video_mixer_callback (gpointer stuff)
GLint attr_texture_loc = 0;
guint out_width, out_height;
const GLushort indices[] = {
0, 1, 2,
0, 2, 3
};
guint count = 0;
out_width = GST_VIDEO_INFO_WIDTH (&vagg->info);
@ -958,6 +973,8 @@ gst_gl_video_mixer_callback (gpointer stuff)
in_tex = frame->texture;
_init_vbo_indices (video_mixer);
if (pad->geometry_change || !pad->vertex_buffer) {
gint pad_width, pad_height;
gfloat w, h;
@ -993,6 +1010,7 @@ gst_gl_video_mixer_callback (gpointer stuff)
} else {
gl->BindBuffer (GL_ARRAY_BUFFER, pad->vertex_buffer);
}
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, video_mixer->vbo_indices);
gl->BlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
gl->BlendEquation (GL_FUNC_ADD);
@ -1011,7 +1029,7 @@ gst_gl_video_mixer_callback (gpointer stuff)
gl->VertexAttribPointer (attr_texture_loc, 2, GL_FLOAT,
GL_FALSE, 5 * sizeof (GLfloat), (void *) (3 * sizeof (GLfloat)));
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
++count;
}
@ -1022,6 +1040,7 @@ gst_gl_video_mixer_callback (gpointer stuff)
if (gl->GenVertexArrays)
gl->BindVertexArray (0);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
gl->BindTexture (GL_TEXTURE_2D, 0);

1
ext/gl/gstglvideomixer.h
View file

@ -64,6 +64,7 @@ struct _GstGLVideoMixer
GPtrArray *input_frames;
GLuint vao;
GLuint vbo_indices;
GLuint checker_vbo;
};

20
gst-libs/gst/gl/gstglcolorconvert.c
View file

@ -1219,6 +1219,7 @@ _bind_buffer (GstGLColorConvert * convert)
{
const GstGLFuncs *gl = convert->context->gl_vtable;
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, convert->priv->vbo_indices);
gl->BindBuffer (GL_ARRAY_BUFFER, convert->priv->vertex_buffer);
/* Load the vertex position */
@ -1238,6 +1239,7 @@ _unbind_buffer (GstGLColorConvert * convert)
{
const GstGLFuncs *gl = convert->context->gl_vtable;
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
gl->DisableVertexAttribArray (convert->priv->attr_position);
@ -1378,23 +1380,20 @@ _init_convert (GstGLColorConvert * convert)
gl->BufferData (GL_ARRAY_BUFFER, 4 * 5 * sizeof (GLfloat), vertices,
GL_STATIC_DRAW);
gl->GenBuffers (1, &convert->priv->vbo_indices);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, convert->priv->vbo_indices);
gl->BufferData (GL_ELEMENT_ARRAY_BUFFER, sizeof (indices), indices,
GL_STATIC_DRAW);
if (gl->GenVertexArrays) {
_bind_buffer (convert);
gl->BindVertexArray (0);
}
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
}
if (!convert->priv->vbo_indices) {
gl->GenBuffers (1, &convert->priv->vbo_indices);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, convert->priv->vbo_indices);
gl->BufferData (GL_ELEMENT_ARRAY_BUFFER, sizeof (indices), indices,
GL_STATIC_DRAW);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
}
gl->BindTexture (GL_TEXTURE_2D, 0);
convert->initted = TRUE;
@ -1737,7 +1736,6 @@ _do_convert_draw (GstGLContext * context, GstGLColorConvert * convert)
g_free (scale_name);
}
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, convert->priv->vbo_indices);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
if (gl->BindVertexArray)
@ -1748,8 +1746,6 @@ _do_convert_draw (GstGLContext * context, GstGLColorConvert * convert)
if (gl->DrawBuffer)
gl->DrawBuffer (GL_NONE);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
/* we are done with the shader */
gst_gl_context_clear_shader (context);

23
gst-libs/gst/gl/gstglfilter.c
View file

@ -239,6 +239,11 @@ gst_gl_filter_gl_stop (GstGLBaseFilter * base_filter)
filter->vertex_buffer = 0;
}
if (filter->vbo_indices) {
gl->DeleteBuffers (1, &filter->vbo_indices);
filter->vbo_indices = 0;
}
if (filter->fbo != 0) {
gst_gl_context_del_fbo (context, filter->fbo, filter->depthbuffer);
}
@ -1057,6 +1062,8 @@ static const GLfloat vertices[] = {
1.0f, 1.0f, 0.0f, 1.0f, 1.0f,
-1.0f, 1.0f, 0.0f, 0.0f, 1.0f
};
static const GLushort indices[] = { 0, 1, 2, 0, 2, 3 };
/* *INDENT-ON* */
static void
@ -1065,6 +1072,7 @@ _bind_buffer (GstGLFilter * filter)
GstGLContext *context = GST_GL_BASE_FILTER (filter)->context;
const GstGLFuncs *gl = context->gl_vtable;
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, filter->vbo_indices);
gl->BindBuffer (GL_ARRAY_BUFFER, filter->vertex_buffer);
_get_attributes (filter);
@ -1087,6 +1095,7 @@ _unbind_buffer (GstGLFilter * filter)
GstGLContext *context = GST_GL_BASE_FILTER (filter)->context;
const GstGLFuncs *gl = context->gl_vtable;
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
gl->DisableVertexAttribArray (filter->draw_attr_position_loc);
@ -1145,8 +1154,6 @@ gst_gl_filter_draw_texture (GstGLFilter * filter, GLuint texture,
#endif
if (gst_gl_context_get_gl_api (context) & (GST_GL_API_GLES2 |
GST_GL_API_OPENGL3)) {
GLushort indices[] = { 0, 1, 2, 0, 2, 3 };
if (!filter->vertex_buffer) {
if (gl->GenVertexArrays) {
gl->GenVertexArrays (1, &filter->vao);
@ -1158,10 +1165,18 @@ gst_gl_filter_draw_texture (GstGLFilter * filter, GLuint texture,
gl->BufferData (GL_ARRAY_BUFFER, 4 * 5 * sizeof (GLfloat), vertices,
GL_STATIC_DRAW);
gl->GenBuffers (1, &filter->vbo_indices);
gl->BindBuffer (GL_ARRAY_BUFFER, filter->vbo_indices);
gl->BufferData (GL_ARRAY_BUFFER, sizeof (indices), indices,
GL_STATIC_DRAW);
if (gl->GenVertexArrays) {
_bind_buffer (filter);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
gl->BindVertexArray (0);
}
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
gl->BindBuffer (GL_ELEMENT_ARRAY_BUFFER, 0);
}
if (gl->GenVertexArrays)
@ -1169,7 +1184,7 @@ gst_gl_filter_draw_texture (GstGLFilter * filter, GLuint texture,
else
_bind_buffer (filter);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
if (gl->GenVertexArrays)
gl->BindVertexArray (0);

1
gst-libs/gst/gl/gstglfilter.h
View file

@ -75,6 +75,7 @@ struct _GstGLFilter
GstGLShader *default_shader;
GLuint vao;
GLuint vbo_indices;
GLuint vertex_buffer;
GLint draw_attr_position_loc;
GLint draw_attr_texture_loc;