45ebc4e3fa
Paints with textures, using a temporary buffer for overlapping copies
Performs CPU to GPU transfers for pixmaps in memory. Accelerates copy
plane when both objects are in the GPU. Includes copy_window
acceleration too.
v2: Use NV_texture_barrier for non-overlapping copies within the same
drawable
v3: Switch to glamor_make_current
v4: Do overlap check on the bounding box of the region rather than
on individual boxes
v5: Use Eric Anholt's re-written comments which provide a more accurate
description of the code
v6: Use floating point uniform for copy plane bit multiplier. This
avoids an int to float conversion in the copy plane fragment shader.
Use round() instead of adding 0.5 in copy plane. round() and +0.5
end up generating equivalent code, and performance measurements
confirm that they are the same speed. Round() is a bit clearer
though, so we'll use it.
Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Markus Wick <markus@selfnet.de>
98 lines
3.6 KiB
C
98 lines
3.6 KiB
C
/*
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* Copyright © 2014 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#ifndef _GLAMOR_PROGRAM_H_
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#define _GLAMOR_PROGRAM_H_
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typedef enum {
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glamor_program_location_none = 0,
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glamor_program_location_fg = 1,
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glamor_program_location_bg = 2,
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glamor_program_location_fill = 4,
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glamor_program_location_font = 8,
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glamor_program_location_bitplane = 16,
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} glamor_program_location;
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typedef enum {
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glamor_program_flag_none = 0,
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} glamor_program_flag;
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typedef struct _glamor_program glamor_program;
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typedef Bool (*glamor_use) (PixmapPtr pixmap, GCPtr gc, glamor_program *prog, void *arg);
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typedef struct {
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const char *name;
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const int version;
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const char *vs_vars;
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const char *vs_exec;
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const char *fs_vars;
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const char *fs_exec;
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const glamor_program_location locations;
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const glamor_program_flag flags;
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const char *source_name;
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glamor_use use;
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} glamor_facet;
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struct _glamor_program {
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GLint prog;
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GLint failed;
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GLint matrix_uniform;
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GLint fg_uniform;
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GLint bg_uniform;
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GLint fill_size_uniform;
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GLint fill_offset_uniform;
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GLint font_uniform;
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GLint bitplane_uniform;
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GLint bitmul_uniform;
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glamor_program_location locations;
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glamor_program_flag flags;
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glamor_use prim_use;
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glamor_use fill_use;
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};
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typedef struct {
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glamor_program progs[4];
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} glamor_program_fill;
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extern const glamor_facet glamor_fill_solid;
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Bool
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glamor_build_program(ScreenPtr screen,
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glamor_program *prog,
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const glamor_facet *prim,
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const glamor_facet *fill);
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Bool
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glamor_use_program(PixmapPtr pixmap,
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GCPtr gc,
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glamor_program *prog,
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void *arg);
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glamor_program *
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glamor_use_program_fill(PixmapPtr pixmap,
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GCPtr gc,
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glamor_program_fill *program_fill,
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const glamor_facet *prim);
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#endif /* _GLAMOR_PROGRAM_H_ */
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