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[042/906] * sys/glsink/glimagesink.c: * sys/glsink/glimagesink.h: * sys/glsink/glvideo.c: * sys/glsink/glvideo.h: * sys/glsink/gstglbuffer.c: * sys/glsink/gstglbuffer.h: * sys/glsink/gstgldownload.c: * sys/glsink/gstglfilter.c: * sys/glsink/gstglupload.c: Rewrite a bunch of code to use textures as the intermediate instead of renderbuffers. upload, download, filtering all work.

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This commit is contained in:
David Schleef 2007-12-24 20:53:55 +00:00 committed by Tim-Philipp Müller
parent c4a58e40e1
commit 7e42503811
2 changed files with 38 additions and 3 deletions
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37
gst-libs/gst/gl/gstglbuffer.c
View file

@ -27,6 +27,9 @@ gst_gl_buffer_finalize (GstGLBuffer * buffer)
case GST_GL_BUFFER_RBO: case GST_GL_BUFFER_RBO:
glDeleteRenderbuffersEXT (1, &buffer->rbo); glDeleteRenderbuffersEXT (1, &buffer->rbo);
break; break;
case GST_GL_BUFFER_TEXTURE:
glDeleteTextures (1, &buffer->texture);
break;
default: default:
g_assert_not_reached (); g_assert_not_reached ();
break; break;
@ -88,14 +91,14 @@ gst_gl_buffer_new (GstGLDisplay * display, GstVideoFormat format,
GstGLBuffer *buffer; GstGLBuffer *buffer;
XGCValues values = { 0 }; XGCValues values = { 0 };
g_return_val_if_fail (format == GST_VIDEO_FORMAT_RGB, NULL); g_return_val_if_fail (format == GST_VIDEO_FORMAT_RGBx, NULL);
g_return_val_if_fail (width > 0, NULL); g_return_val_if_fail (width > 0, NULL);
g_return_val_if_fail (height > 0, NULL); g_return_val_if_fail (height > 0, NULL);
buffer = (GstGLBuffer *) gst_mini_object_new (GST_TYPE_GL_BUFFER); buffer = (GstGLBuffer *) gst_mini_object_new (GST_TYPE_GL_BUFFER);
buffer->display = g_object_ref (display); buffer->display = g_object_ref (display);
buffer->type = GST_GL_BUFFER_RBO; buffer->type = GST_GL_BUFFER_TEXTURE;
buffer->width = width; buffer->width = width;
buffer->height = height; buffer->height = height;
@ -147,6 +150,8 @@ gst_gl_buffer_new (GstGLDisplay * display, GstVideoFormat format,
gst_gl_display_unlock (buffer->display); gst_gl_display_unlock (buffer->display);
break; break;
} }
case GST_GL_BUFFER_TEXTURE:
break;
default: default:
g_assert_not_reached (); g_assert_not_reached ();
} }
@ -236,6 +241,11 @@ gst_gl_buffer_upload (GstGLBuffer * buffer, void *data)
break; break;
} }
case GST_GL_BUFFER_TEXTURE:
buffer->texture =
gst_gl_display_upload_texture_rectangle (buffer->display,
GST_VIDEO_FORMAT_RGBx, data, buffer->width, buffer->height);
break;
default: default:
g_assert_not_reached (); g_assert_not_reached ();
} }
@ -287,6 +297,29 @@ gst_gl_buffer_download (GstGLBuffer * buffer, void *data)
break; break;
} }
case GST_GL_BUFFER_TEXTURE:
{
unsigned int fbo;
glGenFramebuffersEXT (1, &fbo);
glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, fbo);
glFramebufferTexture2DEXT (GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT1_EXT, GL_TEXTURE_RECTANGLE_ARB,
buffer->texture, 0);
glDrawBuffer (GL_COLOR_ATTACHMENT1_EXT);
glReadBuffer (GL_COLOR_ATTACHMENT1_EXT);
g_assert (glCheckFramebufferStatusEXT (GL_FRAMEBUFFER_EXT) ==
GL_FRAMEBUFFER_COMPLETE_EXT);
glReadPixels (0, 0, buffer->width, buffer->height, GL_RGBA,
GL_UNSIGNED_BYTE, data);
glDeleteFramebuffersEXT (1, &fbo);
}
break;
default: default:
g_assert_not_reached (); g_assert_not_reached ();
} }

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

@ -17,7 +17,8 @@ typedef struct _GstGLBuffer GstGLBuffer;
typedef enum { typedef enum {
GST_GL_BUFFER_UNKNOWN, GST_GL_BUFFER_UNKNOWN,
GST_GL_BUFFER_XIMAGE, GST_GL_BUFFER_XIMAGE,
GST_GL_BUFFER_RBO GST_GL_BUFFER_RBO,
GST_GL_BUFFER_TEXTURE
} GstGLBufferType; } GstGLBufferType;
struct _GstGLBuffer { struct _GstGLBuffer {
@ -31,6 +32,7 @@ struct _GstGLBuffer {
GC gc; GC gc;
GLuint rbo; GLuint rbo;
GLuint texture;
int width; int width;
int height; int height;