diff options
Diffstat (limited to 'gst-libs/gst/gl/gstglbuffer.c')
| -rw-r--r-- | gst-libs/gst/gl/gstglbuffer.c | 454 |
1 files changed, 0 insertions, 454 deletions
diff --git a/gst-libs/gst/gl/gstglbuffer.c b/gst-libs/gst/gl/gstglbuffer.c deleted file mode 100644 index b046823..0000000 --- a/gst-libs/gst/gl/gstglbuffer.c +++ /dev/null @@ -1,454 +0,0 @@ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <gstglbuffer.h> -#include <gstgldisplay.h> -#include <GL/glext.h> -#include <unistd.h> -#include "glextensions.h" - -#include <string.h> - -static GObjectClass *gst_gl_buffer_parent_class; - -static void -gst_gl_buffer_finalize (GstGLBuffer * buffer) -{ - gst_gl_display_lock (buffer->display); - - glDeleteTextures (1, &buffer->texture); - if (buffer->texture_u) { - glDeleteTextures (1, &buffer->texture_u); - } - if (buffer->texture_v) { - glDeleteTextures (1, &buffer->texture_v); - } - - gst_gl_display_unlock (buffer->display); - 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) -{ - -} - -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 (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); - - buffer = (GstGLBuffer *) gst_mini_object_new (GST_TYPE_GL_BUFFER); - - buffer->display = g_object_ref (display); - buffer->width = width; - buffer->height = height; - 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); - glBindTexture (GL_TEXTURE_RECTANGLE_ARB, buffer->texture); - switch (format) { - case GST_GL_BUFFER_FORMAT_RGBA: - glTexImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, - 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_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"); - } - - gst_gl_display_unlock (buffer->display); - - return buffer; -} - -GstGLBuffer * -gst_gl_buffer_new_from_video_format (GstGLDisplay * display, - GstVideoFormat video_format, int width, int height) -{ - GstGLBuffer *buffer; - - g_return_val_if_fail (width > 0, NULL); - g_return_val_if_fail (height > 0, 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); - - g_return_if_fail (buffer->format == - gst_gl_buffer_format_from_video_format (video_format)); - - gst_gl_display_lock (buffer->display); - glBindTexture (GL_TEXTURE_RECTANGLE_ARB, buffer->texture); - - switch (video_format) { - case GST_VIDEO_FORMAT_RGBx: - glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height, - GL_RGBA, GL_UNSIGNED_BYTE, data); - break; - case GST_VIDEO_FORMAT_BGRx: - 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: - 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: - 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: - 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: - 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_I420: - case GST_VIDEO_FORMAT_YV12: - glTexSubImage2D (GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, width, height, - GL_LUMINANCE, GL_UNSIGNED_BYTE, data); - - glBindTexture (GL_TEXTURE_RECTANGLE_ARB, buffer->texture_u); - 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 (video_format, 1, width, - height)); - - glBindTexture (GL_TEXTURE_RECTANGLE_ARB, buffer->texture_v); - 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 (video_format, 2, width, - height)); - break; - default: - g_assert_not_reached (); - } - - gst_gl_display_unlock (buffer->display); -} - - -void -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); - - 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); - - switch (video_format) { - case GST_VIDEO_FORMAT_RGBx: - glReadPixels (0, 0, buffer->width, buffer->height, GL_RGBA, - GL_UNSIGNED_BYTE, data); - break; - case GST_VIDEO_FORMAT_BGRx: - glReadPixels (0, 0, buffer->width, buffer->height, GL_BGRA, - GL_UNSIGNED_BYTE, data); - break; - case GST_VIDEO_FORMAT_xBGR: - 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 (); - } - - glDeleteFramebuffersEXT (1, &fbo); - - 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; - default: - GST_WARNING ("GstVideoFormat %d not implemented", format); - /* fall through */ - 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; -} |