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[041/906] * sys/glsink/glextensions.c: * sys/glsink/glextensions.h: * sys/glsink/glvideo.c: * sys/glsink/glvideo.h: * sys/glsink/gstglbuffer.c: * sys/glsink/gstgldownload.c: * sys/glsink/gstglupload.c: A careful read of the documentation reveals that I can't use renderbuffers as textures. Duh. Checkpoint because I'm about to rewrite a bunch of code.

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This commit is contained in:
David Schleef 2007-12-22 05:01:57 +00:00 committed by Matthew Waters
parent 21437bba7d
commit 07780031bc
7 changed files with 206 additions and 20 deletions
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2
gst-libs/gst/gl/glextensions.c
View file

@ -179,3 +179,5 @@ DEFINE_FUNC (glFramebufferRenderbufferEXT, (GLenum target, GLenum attachment,
DEFINE_FUNC (glGetFramebufferAttachmentParameterivEXT, (GLenum target,
GLenum pname, GLint * params), (target, pname, params));
DEFINE_FUNC (glGenerateMipmapEXT, (GLenum target), (target));
DEFINE_FUNC (glWindowPos2iARB, (GLint x, GLint y), (x, y));

2
gst-libs/gst/gl/glextensions.h
View file

@ -54,5 +54,7 @@ void glGetFramebufferAttachmentParameterivEXT (GLenum target, GLenum pname,
GLint *params);
void glGenerateMipmapEXT (GLenum target);
void glWindowPos2iARB (GLint x, GLint y);
#endif

64
gst-libs/gst/gl/gstglbuffer.c
View file

@ -5,6 +5,8 @@
#include <gstglbuffer.h>
#include <glvideo.h>
#include <GL/glext.h>
#include <unistd.h>
#include "glextensions.h"
#include <string.h>
@ -86,7 +88,7 @@ gst_gl_buffer_new (GstGLDisplay * display, GstVideoFormat format,
GstGLBuffer *buffer;
XGCValues values = { 0 };
g_return_val_if_fail (format == GST_VIDEO_FORMAT_BGRx, NULL);
g_return_val_if_fail (format == GST_VIDEO_FORMAT_RGB, NULL);
g_return_val_if_fail (width > 0, NULL);
g_return_val_if_fail (height > 0, NULL);
@ -112,17 +114,35 @@ gst_gl_buffer_new (GstGLDisplay * display, GstVideoFormat format,
}
case GST_GL_BUFFER_RBO:
{
GLuint fbo;
gst_gl_display_lock (buffer->display);
glGenFramebuffersEXT (1, &fbo);
glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, fbo);
glGenRenderbuffersEXT (1, &buffer->rbo);
gst_gl_display_check_error (buffer->display, __LINE__);
glBindRenderbufferEXT (GL_RENDERBUFFER_EXT, buffer->rbo);
gst_gl_display_check_error (buffer->display, __LINE__);
glFramebufferRenderbufferEXT (GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT1_EXT, GL_RENDERBUFFER_EXT, buffer->rbo);
gst_gl_display_check_error (buffer->display, __LINE__);
glRenderbufferStorageEXT (GL_RENDERBUFFER_EXT, GL_RGB,
buffer->width, buffer->height);
gst_gl_display_check_error (buffer->display, __LINE__);
glDrawBuffer (GL_COLOR_ATTACHMENT1_EXT);
glReadBuffer (GL_COLOR_ATTACHMENT1_EXT);
{
GLint status;
status = glCheckFramebufferStatusEXT (GL_FRAMEBUFFER_EXT);
g_assert (status == GL_FRAMEBUFFER_COMPLETE_EXT);
}
glDeleteFramebuffersEXT (1, &fbo);
gst_gl_display_unlock (buffer->display);
break;
@ -170,6 +190,8 @@ gst_gl_buffer_upload (GstGLBuffer * buffer, void *data)
{
unsigned int fbo;
g_assert (glIsRenderbufferEXT (buffer->rbo));
glGenFramebuffersEXT (1, &fbo);
glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, fbo);
@ -177,11 +199,40 @@ gst_gl_buffer_upload (GstGLBuffer * buffer, void *data)
GL_COLOR_ATTACHMENT1_EXT, GL_RENDERBUFFER_EXT, buffer->rbo);
glDrawBuffer (GL_COLOR_ATTACHMENT1_EXT);
//glWindowPos2iARB(0, 0);
glDrawPixels (buffer->width, buffer->height, GL_RGBA,
glReadBuffer (GL_COLOR_ATTACHMENT1_EXT);
g_assert (glCheckFramebufferStatusEXT (GL_FRAMEBUFFER_EXT) ==
GL_FRAMEBUFFER_COMPLETE_EXT);
#if 0
{
void *newdata;
/* FIXME: Some timing issue causes this to work. Note that
* we're not actually using the copied buffer. */
gst_gl_display_check_error (buffer->display, __LINE__);
glWindowPos2iARB (0, 0);
glDrawPixels (buffer->width, buffer->height, GL_RGB,
GL_UNSIGNED_BYTE, data);
newdata = malloc (4 * buffer->width * buffer->height);
//memcpy (newdata, data, 1*buffer->width*buffer->height);
memset (newdata, 255, 3 * buffer->width * buffer->height);
free (newdata);
}
#else
gst_gl_display_check_error (buffer->display, __LINE__);
glWindowPos2iARB (0, 0);
glDrawPixels (buffer->width, buffer->height, GL_RGB,
GL_UNSIGNED_BYTE, data);
#endif
gst_gl_display_check_error (buffer->display, __LINE__);
glDeleteFramebuffersEXT (1, &fbo);
gst_gl_display_check_error (buffer->display, __LINE__);
g_assert (glIsRenderbufferEXT (buffer->rbo));
break;
}
@ -223,8 +274,13 @@ gst_gl_buffer_download (GstGLBuffer * buffer, void *data)
glFramebufferRenderbufferEXT (GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT1_EXT, GL_RENDERBUFFER_EXT, buffer->rbo);
glDrawBuffer (GL_COLOR_ATTACHMENT1_EXT);
glReadBuffer (GL_COLOR_ATTACHMENT1_EXT);
glReadPixels (0, 0, buffer->width, buffer->height, GL_RGBA,
g_assert (glCheckFramebufferStatusEXT (GL_FRAMEBUFFER_EXT) ==
GL_FRAMEBUFFER_COMPLETE_EXT);
glReadPixels (0, 0, buffer->width, buffer->height / 2, GL_RGBA,
GL_UNSIGNED_BYTE, data);
glDeleteFramebuffersEXT (1, &fbo);

113
gst/gl/glvideo.c
View file

@ -247,11 +247,13 @@ gst_gl_display_lock (GstGLDisplay * display)
{
g_mutex_lock (display->lock);
glXMakeCurrent (display->display, display->window, display->context);
gst_gl_display_check_error (display, __LINE__);
}
void
gst_gl_display_unlock (GstGLDisplay * display)
{
gst_gl_display_check_error (display, __LINE__);
glXMakeCurrent (display->display, None, NULL);
g_mutex_unlock (display->lock);
}
@ -346,6 +348,17 @@ gst_gl_display_clear (GstGLDisplay * display)
gst_gl_display_unlock (display);
}
void
gst_gl_display_check_error (GstGLDisplay * display, int line)
{
GLenum err = glGetError ();
if (err) {
GST_ERROR ("GL Error 0x%x at line %d", (int) err, line);
g_assert (0);
}
}
static void
@ -629,3 +642,103 @@ gst_gl_display_draw_image (GstGLDisplay * display, GstGLImageType type,
gst_gl_display_unlock (display);
}
void
gst_gl_display_draw_rbo (GstGLDisplay * display, GLuint rbo,
int width, int height)
{
GLuint texture;
GLuint fbo;
g_return_if_fail (width > 0);
g_return_if_fail (height > 0);
g_return_if_fail (rbo != None);
gst_gl_display_lock (display);
g_assert (display->window != None);
g_assert (display->context != NULL);
gst_gl_display_update_attributes (display);
glViewport (0, 0, display->win_width, display->win_height);
glClearColor (0.3, 0.3, 0.3, 1.0);
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glMatrixMode (GL_PROJECTION);
glLoadIdentity ();
glMatrixMode (GL_MODELVIEW);
glLoadIdentity ();
glDisable (GL_CULL_FACE);
glEnableClientState (GL_TEXTURE_COORD_ARRAY);
glColor4f (1, 1, 1, 1);
glGenFramebuffersEXT (1, &fbo);
glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, fbo);
glFramebufferRenderbufferEXT (GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_EXT, rbo);
glDrawBuffer (GL_COLOR_ATTACHMENT0_EXT);
glReadBuffer (GL_COLOR_ATTACHMENT0_EXT);
g_assert (glCheckFramebufferStatusEXT (GL_FRAMEBUFFER_EXT) ==
GL_FRAMEBUFFER_COMPLETE_EXT);
#if 1
{
void *buffer;
buffer = malloc (320 * 240 * 4);
memset (buffer, random (), 320 * 240 * 4);
free (buffer);
}
#endif
glEnable (GL_TEXTURE_RECTANGLE_ARB);
glGenTextures (1, &texture);
glBindTexture (GL_TEXTURE_RECTANGLE_ARB, texture);
glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGB, width, height, 0,
GL_RGB, GL_UNSIGNED_BYTE, NULL);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri (GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glFramebufferTexture2DEXT (GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
GL_TEXTURE_RECTANGLE_ARB, texture, 0);
glDrawBuffer (0);
glReadBuffer (0);
glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, 0);
glColor4f (1, 0, 1, 1);
gst_gl_display_check_error (display, __LINE__);
//glBindTexture (GL_TEXTURE_RECTANGLE_ARB, 0);
glBegin (GL_QUADS);
glNormal3f (0, 0, -1);
glTexCoord2f (width, 0);
glVertex3f (0.9, 0.9, 0);
glTexCoord2f (0, 0);
glVertex3f (-0.9, 0.9, 0);
glTexCoord2f (0, height);
glVertex3f (-0.9, -0.9, 0);
glTexCoord2f (width, height);
glVertex3f (0.9, -0.9, 0);
glEnd ();
gst_gl_display_check_error (display, __LINE__);
glDeleteTextures (1, &texture);
glDeleteFramebuffersEXT (1, &fbo);
gst_gl_display_check_error (display, __LINE__);
glXSwapBuffers (display->display, display->window);
gst_gl_display_unlock (display);
}

4
gst/gl/glvideo.h
View file

@ -81,7 +81,9 @@ void gst_gl_display_update_attributes (GstGLDisplay *display);
void gst_gl_display_clear (GstGLDisplay *display);
void gst_gl_display_draw_image (GstGLDisplay * display, GstGLImageType type,
void *data, int width, int height);
void gst_gl_display_draw_rbo (GstGLDisplay * display, GLuint rbo,
int width, int height);
void gst_gl_display_check_error (GstGLDisplay *display, int line);
#endif

26
gst/gl/gstgldownload.c
View file

@ -71,7 +71,7 @@ static GstStaticPadTemplate gst_gl_download_src_pad_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_BGRx)
GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB)
);
static GstStaticPadTemplate gst_gl_download_sink_pad_template =
@ -178,19 +178,15 @@ gst_gl_download_reset (GstGLDownload * download)
g_object_unref (download->display);
download->display = NULL;
}
download->format = GST_VIDEO_FORMAT_BGRx;
download->format = GST_VIDEO_FORMAT_RGB;
}
static gboolean
gst_gl_download_start (GstGLDownload * download)
{
gboolean ret;
download->format = GST_VIDEO_FORMAT_RGB;
download->format = GST_VIDEO_FORMAT_BGRx;
download->display = gst_gl_display_new ();
ret = gst_gl_display_connect (download->display, NULL);
return ret;
return TRUE;
}
static gboolean
@ -211,15 +207,20 @@ gst_gl_download_sink_setcaps (GstPad * pad, GstCaps * caps)
download = GST_GL_DOWNLOAD (gst_pad_get_parent (pad));
GST_ERROR ("called with %" GST_PTR_FORMAT, caps);
structure = gst_caps_get_structure (caps, 0);
ret = gst_structure_get_int (structure, "width", &download->width);
ret &= gst_structure_get_int (structure, "height", &download->height);
if (!ret)
if (!ret) {
GST_ERROR ("bad caps");
return FALSE;
}
srccaps = gst_video_format_new_caps (download->format,
download->width, download->height, 30, 1, 1, 1);
GST_ERROR ("srccaps %" GST_PTR_FORMAT, srccaps);
ret = gst_pad_set_caps (download->srcpad, srccaps);
gst_caps_unref (srccaps);
@ -233,16 +234,17 @@ gst_gl_download_chain (GstPad * pad, GstBuffer * buf)
GstGLBuffer *inbuf = GST_GL_BUFFER (buf);
GstBuffer *outbuf;
GST_ERROR ("got here");
download = GST_GL_DOWNLOAD (gst_pad_get_parent (pad));
outbuf = gst_buffer_new_and_alloc (inbuf->width * inbuf->height * 4);
outbuf =
gst_buffer_new_and_alloc (gst_video_format_get_size (download->format,
inbuf->width, inbuf->height));
gst_buffer_copy_metadata (GST_BUFFER (outbuf), buf,
GST_BUFFER_COPY_TIMESTAMPS | GST_BUFFER_COPY_FLAGS);
gst_buffer_set_caps (GST_BUFFER (outbuf), GST_PAD_CAPS (download->srcpad));
GST_ERROR ("downloading %p size %d",
GST_DEBUG ("downloading %p size %d",
GST_BUFFER_DATA (outbuf), GST_BUFFER_SIZE (outbuf));
gst_gl_buffer_download (inbuf, GST_BUFFER_DATA (outbuf));

15
gst/gl/gstglupload.c
View file

@ -53,6 +53,8 @@ struct _GstGLUpload
GstVideoFormat format;
int width;
int height;
gboolean peek;
};
struct _GstGLUploadClass
@ -78,7 +80,7 @@ static GstStaticPadTemplate gst_gl_upload_sink_pad_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_BGRx)
GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB)
);
enum
@ -176,7 +178,8 @@ gst_gl_upload_reset (GstGLUpload * upload)
g_object_unref (upload->display);
upload->display = NULL;
}
upload->format = GST_VIDEO_FORMAT_BGRx;
upload->format = GST_VIDEO_FORMAT_RGB;
upload->peek = TRUE;
}
static gboolean
@ -184,7 +187,7 @@ gst_gl_upload_start (GstGLUpload * upload)
{
gboolean ret;
upload->format = GST_VIDEO_FORMAT_BGRx;
upload->format = GST_VIDEO_FORMAT_RGB;
upload->display = gst_gl_display_new ();
ret = gst_gl_display_connect (upload->display, NULL);
@ -247,6 +250,12 @@ gst_gl_upload_chain (GstPad * pad, GstBuffer * buf)
GST_DEBUG ("uploading %p size %d", GST_BUFFER_DATA (buf),
GST_BUFFER_SIZE (buf));
gst_gl_buffer_upload (outbuf, GST_BUFFER_DATA (buf));
gst_buffer_unref (buf);
if (upload->peek) {
gst_gl_display_draw_rbo (outbuf->display, outbuf->rbo,
outbuf->width, outbuf->height);
}
gst_pad_push (upload->srcpad, GST_BUFFER (outbuf));