diff options
author | Christian König <[email protected]> | 2011-07-13 22:56:06 +0200 |
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committer | Christian König <[email protected]> | 2011-07-13 22:56:06 +0200 |
commit | ed24e19070b7dff12670151b2d184f31c845ccae (patch) | |
tree | 98b47585f9223ee95cbbf541e6434598d9439491 /src/gallium/auxiliary/vl/vl_idct.h | |
parent | 85e1fa55066783d2748993810708dee6db7a4993 (diff) | |
parent | a2a6799fbefc6900f2371efab778c5bc2bf5a6e9 (diff) |
Merge branch 'pipe-video'
Diffstat (limited to 'src/gallium/auxiliary/vl/vl_idct.h')
-rw-r--r-- | src/gallium/auxiliary/vl/vl_idct.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/vl/vl_idct.h b/src/gallium/auxiliary/vl/vl_idct.h new file mode 100644 index 00000000000..98e2c795564 --- /dev/null +++ b/src/gallium/auxiliary/vl/vl_idct.h @@ -0,0 +1,121 @@ +/************************************************************************** + * + * Copyright 2010 Christian König + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef vl_idct_h +#define vl_idct_h + +#include <pipe/p_state.h> + +#include <tgsi/tgsi_ureg.h> + +/* shader based inverse distinct cosinus transformation + * expect usage of vl_vertex_buffers as a todo list + */ +struct vl_idct +{ + struct pipe_context *pipe; + + unsigned buffer_width; + unsigned buffer_height; + unsigned nr_of_render_targets; + + void *rs_state; + void *blend; + + void *samplers[2]; + + void *vs_mismatch, *fs_mismatch; + void *vs, *fs; + + struct pipe_sampler_view *matrix; + struct pipe_sampler_view *transpose; +}; + +/* a set of buffers to work with */ +struct vl_idct_buffer +{ + struct vl_idct *idct; + + struct pipe_viewport_state viewport_mismatch; + struct pipe_viewport_state viewport; + + struct pipe_framebuffer_state fb_state_mismatch; + struct pipe_framebuffer_state fb_state; + + union + { + struct pipe_sampler_view *all[4]; + struct pipe_sampler_view *stage[2][2]; + struct { + struct pipe_sampler_view *source, *matrix; + struct pipe_sampler_view *intermediate, *transpose; + } individual; + } sampler_views; +}; + +/* upload the idct matrix, which can be shared by all idct instances of a pipe */ +struct pipe_sampler_view * +vl_idct_upload_matrix(struct pipe_context *pipe, float scale); + +void +vl_idct_stage2_vert_shader(struct vl_idct *idct, struct ureg_program *shader, + unsigned first_output, struct ureg_dst tex); + +void +vl_idct_stage2_frag_shader(struct vl_idct *idct, struct ureg_program *shader, + unsigned first_input, struct ureg_dst fragment); + +/* init an idct instance */ +bool +vl_idct_init(struct vl_idct *idct, struct pipe_context *pipe, + unsigned buffer_width, unsigned buffer_height, + unsigned nr_of_render_targets, + struct pipe_sampler_view *matrix, + struct pipe_sampler_view *transpose); + +/* destroy an idct instance */ +void +vl_idct_cleanup(struct vl_idct *idct); + +/* init a buffer assosiated with agiven idct instance */ +bool +vl_idct_init_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer, + struct pipe_sampler_view *source, + struct pipe_sampler_view *intermediate); + +/* cleanup a buffer of an idct instance */ +void +vl_idct_cleanup_buffer(struct vl_idct_buffer *buffer); + +/* flush the buffer and start rendering, vertex buffers needs to be setup before calling this */ +void +vl_idct_flush(struct vl_idct_buffer *buffer, unsigned num_verts); + +void +vl_idct_prepare_stage2(struct vl_idct_buffer *buffer); + +#endif |