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[062/906] git-svn-id: svn://svn.wobow.com/GStreamer_playground/gst-plugins-gl@421 93df14bb-0f41-7a43-8087-d3e2a2f0e464

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Julien Isorce 2008-05-18 11:12:46 +00:00 committed by Tim-Philipp Müller
parent 98e2942fed
commit f0e8c70845
4 changed files with 2282 additions and 0 deletions
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124
gst-libs/gst/gl/gstglbuffer.c Normal file
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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstglbuffer.h"
static GObjectClass* gst_gl_buffer_parent_class;
static void
gst_gl_buffer_finalize (GstGLBuffer* buffer)
{
//wait clear textures end, blocking call
gst_gl_display_clearTexture (buffer->display, buffer->texture,
buffer->texture_u, buffer->texture_v);
g_object_unref (buffer->display);
GST_MINI_OBJECT_CLASS (gst_gl_buffer_parent_class)->
finalize (GST_MINI_OBJECT (buffer));
}
static void
gst_gl_buffer_init (GstGLBuffer* buffer, gpointer g_class)
{
buffer->display = NULL;
buffer->video_format = 0;
buffer->texture = 0;
buffer->texture_u = 0;
buffer->texture_v = 0;
buffer->width = 0;
buffer->height = 0;
}
static void
gst_gl_buffer_class_init (gpointer g_class, gpointer class_data)
{
GstMiniObjectClass* mini_object_class = GST_MINI_OBJECT_CLASS (g_class);
gst_gl_buffer_parent_class = g_type_class_peek_parent (g_class);
mini_object_class->finalize = (GstMiniObjectFinalizeFunction)
gst_gl_buffer_finalize;
}
GType
gst_gl_buffer_get_type (void)
{
static GType _gst_gl_buffer_type;
if (G_UNLIKELY (_gst_gl_buffer_type == 0)) {
static const GTypeInfo info = {
sizeof (GstBufferClass),
NULL,
NULL,
gst_gl_buffer_class_init,
NULL,
NULL,
sizeof (GstGLBuffer),
0,
(GInstanceInitFunc) gst_gl_buffer_init,
NULL
};
_gst_gl_buffer_type = g_type_register_static (GST_TYPE_BUFFER,
"GstGLBuffer", &info, 0);
}
return _gst_gl_buffer_type;
}
GstGLBuffer*
gst_gl_buffer_new_from_video_format (GstGLDisplay* display,
GstVideoFormat video_format, gint context_width, gint context_height,
gint width, gint height)
{
GstGLBuffer *buffer;
g_return_val_if_fail (video_format != GST_VIDEO_FORMAT_UNKNOWN, NULL);
g_return_val_if_fail (display != NULL, NULL);
g_return_val_if_fail (width > 0, NULL);
g_return_val_if_fail (height > 0, NULL);
buffer = (GstGLBuffer *) gst_mini_object_new (GST_TYPE_GL_BUFFER);
buffer->display = g_object_ref (display);
buffer->width = width;
buffer->height = height;
buffer->video_format = video_format;
GST_BUFFER_SIZE (buffer) = gst_gl_buffer_format_get_size (video_format, context_width, context_height);
//blocking call, init texture
gst_gl_display_textureRequested (buffer->display, buffer->video_format,
buffer->width, buffer->height,
&buffer->texture, &buffer->texture_u, &buffer->texture_v) ;
return buffer;
}
int
gst_gl_buffer_format_get_size (GstVideoFormat format, int width, int height)
{
/* this is not strictly true, but it's used for compatibility with
* queue and BaseTransform */
return width * height * 4;
}
gboolean
gst_gl_buffer_format_parse_caps (GstCaps * caps, GstVideoFormat * format,
gint* width, gint* height)
{
GstStructure *structure;
gboolean ret;
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_has_name (structure, "video/x-raw-gl"))
return FALSE;
ret = gst_structure_get_int (structure, "width", width);
ret &= gst_structure_get_int (structure, "height", height);
return ret;
}

54
gst-libs/gst/gl/gstglbuffer.h Normal file
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#ifndef _GST_GL_BUFFER_H_
#define _GST_GL_BUFFER_H_
#include <gst/gst.h>
#include <gst/video/video.h>
#include "gstgldisplay.h"
typedef struct _GstGLBuffer GstGLBuffer;
#define GST_TYPE_GL_BUFFER (gst_gl_buffer_get_type())
#define GST_IS_GL_BUFFER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_GL_BUFFER))
#define GST_GL_BUFFER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GL_BUFFER, GstGLBuffer))
struct _GstGLBuffer {
GstBuffer buffer;
GstGLDisplay *display;
GstVideoFormat video_format;
GLuint texture;
GLuint texture_u;
GLuint texture_v;
gint width;
gint height;
};
GType gst_gl_buffer_get_type (void);
#define gst_gl_buffer_ref(x) ((GstGLBuffer *)(gst_buffer_ref((GstBuffer *)(x))))
#define gst_gl_buffer_unref(x) (gst_buffer_unref((GstBuffer *)(x)))
GstGLBuffer* gst_gl_buffer_new_from_video_format (GstGLDisplay* display, GstVideoFormat format,
gint context_width, gint context_height,
gint width, gint height);
gint gst_gl_buffer_format_get_size (GstVideoFormat format, gint width, gint height);
gboolean gst_gl_buffer_format_parse_caps (GstCaps* caps, GstVideoFormat* format,
gint* width, gint* height);
#define GST_GL_VIDEO_CAPS \
"video/x-raw-gl," \
"width=(int)[1,1920]," \
"height=(int)[1,1080]," \
"pixel-aspect-ratio=(fraction)1/1," \
"framerate=(fraction)[0/1,100/1]"
#endif

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gst-libs/gst/gl/gstgldisplay.c Normal file
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#ifndef __GST_GL_H__
#define __GST_GL_H__
#include <gl/glew.h>
#include <GL/freeglut.h>
#include <gst/gst.h>
#include <gst/video/video.h>
#define GST_TYPE_GL_DISPLAY \
(gst_gl_display_get_type())
#define GST_GL_DISPLAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_DISPLAY,GstGLDisplay))
#define GST_GL_DISPLAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_DISPLAY,GstGLDisplayClass))
#define GST_IS_GL_DISPLAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_DISPLAY))
#define GST_IS_GL_DISPLAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_DISPLAY))
typedef struct _GstGLDisplay GstGLDisplay;
typedef struct _GstGLDisplayClass GstGLDisplayClass;
//Message type
typedef enum {
GST_GL_DISPLAY_ACTION_CREATE,
GST_GL_DISPLAY_ACTION_DESTROY,
GST_GL_DISPLAY_ACTION_VISIBLE,
GST_GL_DISPLAY_ACTION_PREPARE,
GST_GL_DISPLAY_ACTION_CHANGE,
GST_GL_DISPLAY_ACTION_CLEAR,
GST_GL_DISPLAY_ACTION_VIDEO,
GST_GL_DISPLAY_ACTION_REDISPLAY
} GstGLDisplayAction;
//Message to communicate with the glut thread
typedef struct _GstGLDisplayMsg {
GstGLDisplayAction action;
gint glutWinId;
GstGLDisplay* display;
} GstGLDisplayMsg;
//Texture pool elements
typedef struct _GstGLDisplayTex {
GLuint texture;
GLuint texture_u;
GLuint texture_v;
} GstGLDisplayTex;
//Client callbacks
typedef void (* CRCB) ( GLuint, GLuint );
typedef gboolean (* CDCB) ( GLuint, GLuint, GLuint);
struct _GstGLDisplay {
GObject object;
GMutex *mutex;
GQueue* texturePool;
GCond *cond_make;
GCond *cond_fill;
GCond *cond_clear;
GCond *cond_video;
GCond *cond_create;
GCond *cond_destroy;
gint glutWinId;
gulong winId;
GString *title;
gint win_xpos;
gint win_ypos;
gint glcontext_width;
gint glcontext_height;
gboolean visible;
//intput frame buffer object (video -> GL)
GLuint fbo;
GLuint depthBuffer;
GLuint textureFBO;
GLuint textureFBOWidth;
GLuint textureFBOHeight;
//graphic frame buffer object (GL texture -> GL scene)
GLuint graphicFBO;
GLuint graphicDepthBuffer;
GLuint graphicTexture;
GLuint requestedTexture;
GLuint requestedTexture_u;
GLuint requestedTexture_v;
GstVideoFormat requestedVideo_format;
GLuint requestedTextureWidth;
GLuint requestedTextureHeight;
GLuint candidateTexture;
GLuint candidateTexture_u;
GLuint candidateTexture_v;
GstVideoFormat candidateVideo_format;
GLuint candidateTextureWidth;
GLuint candidateTextureHeight;
gpointer candidateData;
GLuint currentTexture;
GLuint currentTexture_u;
GLuint currentTexture_v;
GstVideoFormat currentVideo_format;
GLuint currentTextureWidth;
GLuint currentTextureHeight;
GLuint textureTrash;
GLuint textureTrash_u;
GLuint textureTrash_v;
//output frame buffer object (GL -> video)
GLuint videoFBO;
GLuint videoDepthBuffer;
GLuint videoTexture;
GLuint videoTexture_u;
GLuint videoTexture_v;
gint outputWidth;
gint outputHeight;
GstVideoFormat outputVideo_format;
gpointer outputData;
GLenum multipleRT[3];
//from video to texture
gchar* textFProgram_YUY2_UYVY;
GLhandleARB GLSLProgram_YUY2;
GLhandleARB GLSLProgram_UYVY;
gchar* textFProgram_I420_YV12;
GLhandleARB GLSLProgram_I420_YV12;
gchar* textFProgram_AYUV;
GLhandleARB GLSLProgram_AYUV;
//from texture to video
gchar* textFProgram_to_YUY2_UYVY;
GLhandleARB GLSLProgram_to_YUY2;
GLhandleARB GLSLProgram_to_UYVY;
gchar* textFProgram_to_I420_YV12;
GLhandleARB GLSLProgram_to_I420_YV12;
gchar* textFProgram_to_AYUV;
GLhandleARB GLSLProgram_to_AYUV;
//client callbacks
CRCB clientReshapeCallback;
CDCB clientDrawCallback;
};
struct _GstGLDisplayClass {
GObjectClass object_class;
};
GType gst_gl_display_get_type (void);
//------------------------------------------------------------
//-------------------- Public déclarations ------------------
//------------------------------------------------------------
GstGLDisplay *gst_gl_display_new (void);
void gst_gl_display_initGLContext (GstGLDisplay* display,
GLint x, GLint y,
GLint graphic_width, GLint graphic_height,
GLint video_width, GLint video_height,
gulong winId,
gboolean visible);
void gst_gl_display_setClientReshapeCallback (GstGLDisplay* display, CRCB cb);
void gst_gl_display_setClientDrawCallback (GstGLDisplay* display, CDCB cb);
void gst_gl_display_setVisibleWindow (GstGLDisplay* display, gboolean visible);
void gst_gl_display_textureRequested (GstGLDisplay* display, GstVideoFormat format,
gint width, gint height, guint* texture,
guint* texture_u, guint* texture_v);
void gst_gl_display_textureChanged (GstGLDisplay* display, GstVideoFormat video_format,
GLuint texture, GLuint texture_u, GLuint texture_v,
gint width, gint height, gpointer data);
void gst_gl_display_clearTexture (GstGLDisplay* display, guint texture,
guint texture_u, guint texture_v);
void gst_gl_display_videoChanged (GstGLDisplay* display, GstVideoFormat video_format,
gpointer data);
void gst_gl_display_postRedisplay (GstGLDisplay* display);
void gst_gl_display_set_windowId (GstGLDisplay* display, gulong winId);
#endif