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[049/906] * configure.ac: * sys/glsink/glextensions.c: * sys/glsink/glextensions.h: * sys/glsink/glimagesink.c: * sys/glsink/glimagesink.h: * sys/glsink/gstglbuffer.c: * sys/glsink/gstglbuffer.h: * sys/glsink/gstglconvert.c: * sys/glsink/gstgldisplay.c: * sys/glsink/gstgldisplay.h: * sys/glsink/gstgldownload.c: * sys/glsink/gstglfilter.c: * sys/glsink/gstglfilter.h: * sys/glsink/gstglfilterexample.c: * sys/glsink/gstgltestsrc.c: * sys/glsink/gstglupload.c: Major cleanup of code. Convert glupload to BaseTransform. Handle caps negotiation mostly correctly. Reenable in build.

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This commit is contained in:
David Schleef 2007-12-29 00:37:40 +00:00 committed by Tim-Philipp Müller
parent 2a6bf50ba7
commit 6fd801ba2a
6 changed files with 334 additions and 96 deletions
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6
gst-libs/gst/gl/glextensions.c
View file

@ -49,6 +49,7 @@ DEFINE_FUNC_RET (glCreateShaderObjectARB, GLhandleARB,
(GLenum shaderType), (shaderType));
#if 0
typedef GLhandleARB type_glCreateShaderObjectARB (GLenum shaderType);
GLhandleARB
glCreateShaderObjectARB (GLenum shaderType)
{
@ -181,3 +182,8 @@ DEFINE_FUNC (glGetFramebufferAttachmentParameterivEXT, (GLenum target,
DEFINE_FUNC (glGenerateMipmapEXT, (GLenum target), (target));
DEFINE_FUNC (glWindowPos2iARB, (GLint x, GLint y), (x, y));
DEFINE_FUNC (glGenProgramsARB, (GLsizei a, GLuint * b), (a, b));
DEFINE_FUNC (glBindProgramARB, (GLenum a, GLuint b), (a, b));
DEFINE_FUNC (glProgramStringARB,
(GLenum a, GLenum b, GLsizei c, const GLvoid * d), (a, b, c, d));

4
gst-libs/gst/gl/glextensions.h
View file

@ -56,5 +56,9 @@ void glGenerateMipmapEXT (GLenum target);
void glWindowPos2iARB (GLint x, GLint y);
void glGenProgramsARB (GLsizei, GLuint *);
void glBindProgramARB (GLenum, GLuint);
void glProgramStringARB (GLenum, GLenum, GLsizei, const GLvoid *);
#endif

309
gst-libs/gst/gl/gstglbuffer.c
View file

@ -77,11 +77,24 @@ gst_gl_buffer_get_type (void)
GstGLBuffer *
gst_gl_buffer_new (GstGLDisplay * display, GstGLBufferFormat format,
int width, int height)
gst_gl_buffer_new (GstGLDisplay * display, int width, int height)
{
g_return_val_if_fail (display != NULL, NULL);
g_return_val_if_fail (width > 0, NULL);
g_return_val_if_fail (height > 0, NULL);
return gst_gl_buffer_new_with_format (display, GST_GL_BUFFER_FORMAT_RGBA,
width, height);
}
GstGLBuffer *
gst_gl_buffer_new_with_format (GstGLDisplay * display,
GstGLBufferFormat format, int width, int height)
{
GstGLBuffer *buffer;
g_return_val_if_fail (format != GST_GL_BUFFER_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);
@ -90,9 +103,9 @@ gst_gl_buffer_new (GstGLDisplay * display, GstGLBufferFormat format,
buffer->display = g_object_ref (display);
buffer->width = width;
buffer->height = height;
/* this is not strictly true, but it's used for compatibility with
* queue and BaseTransform */
GST_BUFFER_SIZE (buffer) = width * height * 4;
buffer->format = format;
GST_BUFFER_SIZE (buffer) = gst_gl_buffer_format_get_size (format, width,
height);
gst_gl_display_lock (buffer->display);
glGenTextures (1, &buffer->texture);
@ -100,11 +113,69 @@ gst_gl_buffer_new (GstGLDisplay * display, GstGLBufferFormat format,
switch (format) {
case GST_GL_BUFFER_FORMAT_RGBA:
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA,
buffer->width, buffer->height, 0, GL_RGBA, GL_FLOAT, NULL);
buffer->width, buffer->height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
break;
case GST_GL_BUFFER_FORMAT_RGB:
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGB,
buffer->width, buffer->height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
buffer->width, buffer->height, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
break;
case GST_GL_BUFFER_FORMAT_YUYV:
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_YCBCR_MESA,
buffer->width, buffer->height,
0, GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_REV_MESA, NULL);
break;
case GST_GL_BUFFER_FORMAT_PLANAR444:
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE,
buffer->width, buffer->height,
0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL);
glGenTextures (1, &buffer->texture_u);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, buffer->texture_u);
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE,
buffer->width, buffer->height,
0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL);
glGenTextures (1, &buffer->texture_v);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, buffer->texture_v);
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE,
buffer->width, buffer->height,
0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL);
break;
case GST_GL_BUFFER_FORMAT_PLANAR422:
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE,
buffer->width, buffer->height,
0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL);
glGenTextures (1, &buffer->texture_u);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, buffer->texture_u);
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE,
GST_ROUND_UP_2 (buffer->width) / 2, buffer->height,
0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL);
glGenTextures (1, &buffer->texture_v);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, buffer->texture_v);
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE,
GST_ROUND_UP_2 (buffer->width) / 2, buffer->height,
0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL);
break;
case GST_GL_BUFFER_FORMAT_PLANAR420:
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE,
buffer->width, buffer->height,
0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL);
glGenTextures (1, &buffer->texture_u);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, buffer->texture_u);
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE,
GST_ROUND_UP_2 (buffer->width) / 2,
GST_ROUND_UP_2 (buffer->height) / 2,
0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL);
glGenTextures (1, &buffer->texture_v);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, buffer->texture_v);
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE,
GST_ROUND_UP_2 (buffer->width) / 2,
GST_ROUND_UP_2 (buffer->height) / 2,
0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL);
break;
default:
g_warning ("GL buffer format not handled");
@ -116,138 +187,135 @@ gst_gl_buffer_new (GstGLDisplay * display, GstGLBufferFormat format,
}
GstGLBuffer *
gst_gl_buffer_new_from_data (GstGLDisplay * display, GstVideoFormat format,
int width, int height, void *data)
gst_gl_buffer_new_from_video_format (GstGLDisplay * display,
GstVideoFormat video_format, int width, int height)
{
GstGLBuffer *buffer;
int comp;
g_return_val_if_fail (width > 0, NULL);
g_return_val_if_fail (height > 0, NULL);
g_return_val_if_fail (data != NULL, NULL);
buffer = gst_gl_buffer_new_with_format (display,
gst_gl_buffer_format_from_video_format (video_format), width, height);
switch (video_format) {
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:
buffer->is_yuv = FALSE;
break;
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
/* counterintuitive: when you use a GL_YCBCR_MESA texture, the
* colorspace is automatically converted, so it's referred to
* as RGB */
buffer->is_yuv = FALSE;
break;
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
buffer->is_yuv = TRUE;
break;
default:
g_assert_not_reached ();
}
return buffer;
}
void
gst_gl_buffer_upload (GstGLBuffer * buffer, GstVideoFormat video_format,
void *data)
{
int width = buffer->width;
int height = buffer->height;
GST_DEBUG ("uploading %p %dx%d", data, width, height);
buffer = (GstGLBuffer *) gst_mini_object_new (GST_TYPE_GL_BUFFER);
buffer->display = g_object_ref (display);
buffer->width = width;
buffer->height = height;
/* this is not strictly true, but it's used for compatibility with
* queue and BaseTransform */
GST_BUFFER_SIZE (buffer) = width * height * 4;
g_return_if_fail (buffer->format ==
gst_gl_buffer_format_from_video_format (video_format));
gst_gl_display_lock (buffer->display);
glGenTextures (1, &buffer->texture);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, buffer->texture);
switch (format) {
switch (video_format) {
case GST_VIDEO_FORMAT_RGBx:
buffer->format = GST_GL_BUFFER_FORMAT_RGB;
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA,
buffer->width, buffer->height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_RGBA, GL_UNSIGNED_BYTE, data);
break;
case GST_VIDEO_FORMAT_BGRx:
buffer->format = GST_GL_BUFFER_FORMAT_RGB;
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA,
buffer->width, buffer->height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_BGRA, GL_UNSIGNED_BYTE, data);
break;
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_xRGB:
buffer->format = GST_GL_BUFFER_FORMAT_RGB;
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA,
buffer->width, buffer->height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, data);
break;
case GST_VIDEO_FORMAT_xBGR:
buffer->format = GST_GL_BUFFER_FORMAT_RGB;
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA,
buffer->width, buffer->height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, data);
break;
case GST_VIDEO_FORMAT_YUY2:
buffer->format = GST_GL_BUFFER_FORMAT_YUYV;
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_YCBCR_MESA, width, height,
0, GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_REV_MESA, NULL);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_REV_MESA, data);
break;
case GST_VIDEO_FORMAT_UYVY:
buffer->format = GST_GL_BUFFER_FORMAT_YUYV;
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_YCBCR_MESA, width, height,
0, GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_REV_MESA, NULL);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_YCBCR_MESA, GL_UNSIGNED_SHORT_8_8_MESA, data);
break;
case GST_VIDEO_FORMAT_AYUV:
buffer->format = GST_GL_BUFFER_FORMAT_RGB;
buffer->is_yuv = TRUE;
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA,
buffer->width, buffer->height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, data);
break;
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
buffer->format = GST_GL_BUFFER_FORMAT_PLANAR420;
buffer->is_yuv = TRUE;
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE,
buffer->width, buffer->height,
0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL);
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height,
GL_LUMINANCE, GL_UNSIGNED_BYTE, data);
glGenTextures (1, &buffer->texture_u);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, buffer->texture_u);
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE,
GST_ROUND_UP_2 (buffer->width) / 2,
GST_ROUND_UP_2 (buffer->height) / 2,
0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL);
comp = (format == GST_VIDEO_FORMAT_I420) ? 1 : 2;
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0,
GST_ROUND_UP_2 (buffer->width) / 2,
GST_ROUND_UP_2 (buffer->height) / 2,
GL_LUMINANCE, GL_UNSIGNED_BYTE,
(guint8 *) data +
gst_video_format_get_component_offset (format, comp, width, height));
gst_video_format_get_component_offset (video_format, 1, width,
height));
glGenTextures (1, &buffer->texture_v);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, buffer->texture_v);
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_LUMINANCE,
GST_ROUND_UP_2 (buffer->width) / 2,
GST_ROUND_UP_2 (buffer->height) / 2,
0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL);
comp = (format == GST_VIDEO_FORMAT_I420) ? 2 : 1;
glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0,
GST_ROUND_UP_2 (buffer->width) / 2,
GST_ROUND_UP_2 (buffer->height) / 2,
GL_LUMINANCE, GL_UNSIGNED_BYTE,
(guint8 *) data +
gst_video_format_get_component_offset (format, comp, width, height));
gst_video_format_get_component_offset (video_format, 2, width,
height));
break;
default:
g_assert_not_reached ();
}
gst_gl_display_unlock (buffer->display);
return buffer;
}
void
gst_gl_buffer_download (GstGLBuffer * buffer, GstVideoFormat format, void *data)
gst_gl_buffer_download (GstGLBuffer * buffer, GstVideoFormat video_format,
void *data)
{
GLuint fbo;
g_return_if_fail (buffer->format ==
gst_gl_buffer_format_from_video_format (video_format));
GST_DEBUG ("downloading");
gst_gl_display_lock (buffer->display);
/* we need a reset function */
glMatrixMode (GL_COLOR);
glLoadIdentity ();
glPixelTransferf (GL_POST_COLOR_MATRIX_RED_BIAS, 0);
glPixelTransferf (GL_POST_COLOR_MATRIX_GREEN_BIAS, 0);
glPixelTransferf (GL_POST_COLOR_MATRIX_BLUE_BIAS, 0);
glGenFramebuffersEXT (1, &fbo);
glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, fbo);
@ -260,14 +328,7 @@ gst_gl_buffer_download (GstGLBuffer * buffer, GstVideoFormat format, void *data)
g_assert (glCheckFramebufferStatusEXT (GL_FRAMEBUFFER_EXT) ==
GL_FRAMEBUFFER_COMPLETE_EXT);
/* we need a reset function */
glMatrixMode (GL_COLOR);
glLoadIdentity ();
glPixelTransferf (GL_POST_COLOR_MATRIX_RED_BIAS, 0);
glPixelTransferf (GL_POST_COLOR_MATRIX_GREEN_BIAS, 0);
glPixelTransferf (GL_POST_COLOR_MATRIX_BLUE_BIAS, 0);
switch (format) {
switch (video_format) {
case GST_VIDEO_FORMAT_RGBx:
glReadPixels (0, 0, buffer->width, buffer->height, GL_RGBA,
GL_UNSIGNED_BYTE, data);
@ -280,10 +341,42 @@ gst_gl_buffer_download (GstGLBuffer * buffer, GstVideoFormat format, void *data)
glReadPixels (0, 0, buffer->width, buffer->height, GL_RGBA,
GL_UNSIGNED_INT_8_8_8_8, data);
break;
case GST_VIDEO_FORMAT_AYUV:
case GST_VIDEO_FORMAT_xRGB:
glReadPixels (0, 0, buffer->width, buffer->height, GL_BGRA,
GL_UNSIGNED_INT_8_8_8_8, data);
break;
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
g_warning ("video format not supported for download from GL texture");
break;
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
glReadPixels (0, 0, buffer->width, buffer->height,
GL_LUMINANCE, GL_UNSIGNED_BYTE, data);
glFramebufferTexture2DEXT (GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT1_EXT, GL_TEXTURE_RECTANGLE_ARB,
buffer->texture_u, 0);
glReadPixels (0, 0,
GST_ROUND_UP_2 (buffer->width) / 2,
GST_ROUND_UP_2 (buffer->height) / 2,
GL_LUMINANCE, GL_UNSIGNED_BYTE,
(guint8 *) data +
gst_video_format_get_component_offset (video_format, 1, buffer->width,
buffer->height));
glFramebufferTexture2DEXT (GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT1_EXT, GL_TEXTURE_RECTANGLE_ARB,
buffer->texture_v, 0);
glReadPixels (0, 0,
GST_ROUND_UP_2 (buffer->width) / 2,
GST_ROUND_UP_2 (buffer->height) / 2,
GL_LUMINANCE, GL_UNSIGNED_BYTE,
(guint8 *) data +
gst_video_format_get_component_offset (video_format, 2, buffer->width,
buffer->height));
break;
default:
g_assert_not_reached ();
}
@ -292,3 +385,67 @@ gst_gl_buffer_download (GstGLBuffer * buffer, GstVideoFormat format, void *data)
gst_gl_display_unlock (buffer->display);
}
/* buffer format */
GstGLBufferFormat
gst_gl_buffer_format_from_video_format (GstVideoFormat format)
{
switch (format) {
case GST_VIDEO_FORMAT_RGBx:
case GST_VIDEO_FORMAT_BGRx:
case GST_VIDEO_FORMAT_xRGB:
case GST_VIDEO_FORMAT_xBGR:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_ARGB:
case GST_VIDEO_FORMAT_ABGR:
case GST_VIDEO_FORMAT_AYUV:
return GST_GL_BUFFER_FORMAT_RGBA;
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_BGR:
return GST_GL_BUFFER_FORMAT_RGB;
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
return GST_GL_BUFFER_FORMAT_YUYV;
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
return GST_GL_BUFFER_FORMAT_PLANAR420;
case GST_VIDEO_FORMAT_UNKNOWN:
return GST_GL_BUFFER_FORMAT_UNKNOWN;
}
g_return_val_if_reached (GST_GL_BUFFER_FORMAT_UNKNOWN);
}
int
gst_gl_buffer_format_get_size (GstGLBufferFormat 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, GstGLBufferFormat * format,
int *width, int *height)
{
GstStructure *structure;
int format_as_int;
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, "format", &format_as_int);
*format = format_as_int;
ret &= gst_structure_get_int (structure, "width", width);
ret &= gst_structure_get_int (structure, "height", height);
return ret;
}

18
gst-libs/gst/gl/gstglbuffer.h
View file

@ -14,6 +14,7 @@ typedef struct _GstGLBuffer GstGLBuffer;
#define GST_GL_BUFFER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GL_BUFFER, GstGLBuffer))
typedef enum {
GST_GL_BUFFER_FORMAT_UNKNOWN,
GST_GL_BUFFER_FORMAT_RGBA,
GST_GL_BUFFER_FORMAT_RGB,
GST_GL_BUFFER_FORMAT_YUYV,
@ -41,21 +42,32 @@ struct _GstGLBuffer {
GType gst_gl_buffer_get_type (void);
GstGLBuffer * gst_gl_buffer_new (GstGLDisplay *display,
int width, int height);
GstGLBuffer * gst_gl_buffer_new_with_format (GstGLDisplay *display,
GstGLBufferFormat format, int width, int height);
GstGLBuffer * gst_gl_buffer_new_from_data (GstGLDisplay *display,
GstVideoFormat format, int width, int height, void *data);
GstGLBuffer * gst_gl_buffer_new_from_video_format (GstGLDisplay *display,
GstVideoFormat format, int width, int height);
void gst_gl_buffer_upload (GstGLBuffer *buffer,
GstVideoFormat format, void *data);
void gst_gl_buffer_download (GstGLBuffer *buffer, GstVideoFormat format,
void *data);
#define GST_GL_VIDEO_CAPS \
"video/x-raw-gl," \
"format=(int)[0,10]," \
"format=(int)1," \
"is_yuv=(boolean)FALSE," \
"width=(int)[1,2048]," \
"height=(int)[1,2048]," \
"pixel-aspect-ratio=(fraction)1/1," \
"framerate=(fraction)[0/1,100/1]"
GstGLBufferFormat gst_gl_buffer_format_from_video_format (GstVideoFormat format);
int gst_gl_buffer_format_get_size (GstGLBufferFormat format, int width,
int height);
gboolean gst_gl_buffer_format_parse_caps (GstCaps *caps, GstGLBufferFormat *format,
int *width, int *height);
#endif

90
gst-libs/gst/gl/gstgldisplay.c
View file

@ -57,15 +57,17 @@ gst_gl_display_finalize (GObject * object)
{
GstGLDisplay *display = GST_GL_DISPLAY (object);
if (display->assigned_window == None) {
GST_DEBUG ("finalize %p", object);
if (display->window != None) {
XDestroyWindow (display->display, display->window);
}
if (display->context) {
glXDestroyContext (display->display, display->context);
}
if (display->visinfo) {
XFree (display->visinfo);
}
//if (display->visinfo) {
// XFree (display->visinfo);
//}
if (display->display) {
XCloseDisplay (display->display);
}
@ -165,11 +167,28 @@ gst_gl_display_check_features (GstGLDisplay * display)
GST_DEBUG ("No GLX extension");
return FALSE;
}
#if 0
{
int i;
int n;
visinfo = glXChooseVisual (display->display, scrnum, attrib);
if (visinfo == NULL) {
GST_DEBUG ("No usable visual");
return FALSE;
visinfo = XGetVisualInfo (display->display, 0, NULL, &n);
for (i = 0; i < n; i++) {
GST_ERROR ("%d: %d %ld", i, visinfo[i].depth, visinfo[i].visualid);
if (visinfo[i].depth == 32)
break;
}
visinfo += i;
}
#endif
if (1) {
visinfo = glXChooseVisual (display->display, scrnum, attrib);
if (visinfo == NULL) {
GST_DEBUG ("No usable visual");
return FALSE;
}
}
display->visinfo = visinfo;
@ -185,6 +204,8 @@ gst_gl_display_check_features (GstGLDisplay * display)
mask = CWBackPixel | CWBorderPixel | CWColormap | CWOverrideRedirect;
GST_ERROR ("creating window with visual %ld", visinfo->visualid);
window = XCreateWindow (display->display, root, 0, 0,
100, 100, 0, visinfo->depth, InputOutput, visinfo->visual, mask, &attr);
@ -245,8 +266,16 @@ gst_gl_display_can_handle_type (GstGLDisplay * display, GstVideoFormat type)
void
gst_gl_display_lock (GstGLDisplay * display)
{
gboolean ret;
g_assert (display->window != None);
g_assert (display->context != NULL);
g_mutex_lock (display->lock);
glXMakeCurrent (display->display, display->window, display->context);
ret = glXMakeCurrent (display->display, display->window, display->context);
if (!ret) {
g_warning ("glxMakeCurrent failed");
}
gst_gl_display_check_error (display, __LINE__);
}
@ -265,7 +294,10 @@ gst_gl_display_init_tmp_window (GstGLDisplay * display)
int scrnum;
int mask;
Window root;
Window parent_window;
Screen *screen;
int width;
int height;
GST_DEBUG ("creating temp window");
@ -277,20 +309,29 @@ gst_gl_display_init_tmp_window (GstGLDisplay * display)
attr.border_pixel = 0;
attr.colormap = XCreateColormap (display->display, root,
display->visinfo->visual, AllocNone);
attr.override_redirect = False;
#if 0
if (display->parent_window) {
if (display->parent_window != None) {
XWindowAttributes parent_attr;
attr.override_redirect = True;
parent_window = display->parent_window;
XGetWindowAttributes (display->display, parent_window, &parent_attr);
width = parent_attr.width;
height = parent_attr.height;
} else {
attr.override_redirect = False;
parent_window = root;
width = 100;
height = 100;
}
#endif
mask = CWBackPixel | CWBorderPixel | CWColormap | CWOverrideRedirect;
display->window = XCreateWindow (display->display,
root, 0, 0, 100, 100,
parent_window, 0, 0, width, height,
0, display->visinfo->depth, InputOutput,
display->visinfo->visual, mask, &attr);
//XMapWindow (display->display, display->window);
XMapWindow (display->display, display->window);
XSync (display->display, FALSE);
}
@ -305,6 +346,7 @@ gst_gl_display_set_window (GstGLDisplay * display, Window window)
{
g_mutex_lock (display->lock);
#if 0
if (window != display->assigned_window) {
if (display->assigned_window == None) {
gst_gl_display_destroy_tmp_window (display);
@ -316,6 +358,18 @@ gst_gl_display_set_window (GstGLDisplay * display, Window window)
display->window = window;
}
}
#else
if (window != display->parent_window) {
gst_gl_display_destroy_tmp_window (display);
display->parent_window = window;
gst_gl_display_init_tmp_window (display);
//XReparentWindow (display->display, display->window,
// display->assigned_window, 0, 0);
}
#endif
g_mutex_unlock (display->lock);
}
@ -327,6 +381,10 @@ gst_gl_display_update_attributes (GstGLDisplay * display)
if (display->window != None) {
XGetWindowAttributes (display->display, display->window, &attr);
GST_DEBUG ("window visual %ld display visual %ld",
attr.visual->visualid, display->visinfo->visual->visualid);
display->win_width = attr.width;
display->win_height = attr.height;
} else {
@ -670,7 +728,7 @@ gst_gl_display_draw_image (GstGLDisplay * display, GstVideoFormat type,
gst_gl_display_update_attributes (display);
//glXSwapIntervalSGI (1);
glXSwapIntervalSGI (1);
glViewport (0, 0, display->win_width, display->win_height);
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

3
gst-libs/gst/gl/gstgldisplay.h
View file

@ -46,7 +46,8 @@ struct _GstGLDisplay {
gboolean have_color_matrix;
Window window;
Window assigned_window;
//Window assigned_window;
Window parent_window;
int win_width;
int win_height;