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gstreamer/gst/gl/effects/gstgleffectssources.h

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[494/906] cmake build: use config.h from win32/common and add some guidelines
2012-04-17 16:25:55 +00:00
/*
[158/906] still working on mergin gstgleffects, add mirror effect. reorganize source tree.
2008-08-13 18:58:49 +00:00
* GStreamer
* Copyright (C) 2008 Filippo Argiolas <filippo.argiolas@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_GL_EFFECTS_SOURCES_H__
#define __GST_GL_EFFECTS_SOURCES_H__
[408/906] gleffects: start to make it compatible with OpenGL ES 2.0 For now only identity, mirror and squeeze effects are available. Maybe some factorization is needed about compilation shader before to put the other effects since only a copy/past is needed, at least until effect number 9: heat. The effects from 10:sepia to 15:glow require more work.
2009-11-21 20:40:14 +00:00
extern const gchar *vertex_shader_source;
extern const gchar *identity_fragment_source;
[292/906] Add 'extern' for data symbols in headers
2009-01-10 01:46:01 +00:00
extern const gchar *mirror_fragment_source;
extern const gchar *squeeze_fragment_source;
extern const gchar *stretch_fragment_source;
extern const gchar *tunnel_fragment_source;
extern const gchar *fisheye_fragment_source;
extern const gchar *twirl_fragment_source;
extern const gchar *bulge_fragment_source;
extern const gchar *square_fragment_source;
extern const gchar *luma_threshold_fragment_source;
[441/906] sobel: convolve only luma Rework Sobel a little bit again making it work as the old one: 1. desaturate input texture 2. calculate horizontal convolution for x gradient and vertical convolution for y gradient at the same time (halves the number of needed texture lookups) 3. store results in a single texture (red and green channel) 4. calculate remaining convolution (same as above switching vertical and horizontal) 5. calculate length of gradient using red and green as x and y components. Optimize wherever possible, store kernels as constants in the shaders, remove unneeded uniforms. Restore invert property carefully avoiding using IF. Still not sure if "full color" convolution will be needed, glfiltersobel is to be intended as a demo filter and xray, the only effect which uses sobel only needs edge intensity. Dropping it for now.
2010-04-27 17:38:33 +00:00
extern const gchar *sep_sobel_length_fragment_source;
extern const gchar *desaturate_fragment_source;
extern const gchar *sep_sobel_hconv3_fragment_source;
extern const gchar *sep_sobel_vconv3_fragment_source;
[453/906] blur: give up some accuracy for speed Settle with 7x7 gaussian convolution kernels, maybe slightly less accurate than previous 9x9 but fast enough to be able to use it on i915. About a 20% percent speed gain (again, roughly measured with videotestsrc and glimagesink sync=false). No noticeable rendering difference with current effects.
2010-04-29 18:49:02 +00:00
extern const gchar *hconv7_fragment_source;
extern const gchar *vconv7_fragment_source;
[292/906] Add 'extern' for data symbols in headers
2009-01-10 01:46:01 +00:00
extern const gchar *sum_fragment_source;
extern const gchar *luma_to_curve_fragment_source;
extern const gchar *rgb_to_curve_fragment_source;
extern const gchar *sin_fragment_source;
extern const gchar *interpolate_fragment_source;
extern const gchar *texture_interp_fragment_source;
extern const gchar *difference_fragment_source;
extern const gchar *multiply_fragment_source;
[158/906] still working on mergin gstgleffects, add mirror effect. reorganize source tree.
2008-08-13 18:58:49 +00:00
[423/906] convolution: generate gaussian kernel on the fly Generate a normalized gaussian kernel with given size and standard deviation on the fly. Remove "norm_const" uniform from convolution shaders and provide a normalized kernel instead. Remove norm_offset uniform as it was always zero, will reintroduce it if really needed in the future. Thanks to Eric Anholt for suggesting it. Save some ALU instruction calculating directly the coordinate for texture lookup instead of summing an offset. Still exceed maximum indirect texture lookups on i915, the only solution I see is using a 3x3 kernel.
2010-04-23 18:06:48 +00:00
void fill_gaussian_kernel (float *kernel, int size, float sigma);
[158/906] still working on mergin gstgleffects, add mirror effect. reorganize source tree.
2008-08-13 18:58:49 +00:00
#endif /* __GST_GL_EFFECTS_SOURCES_H__ */
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