029b64c30a
This just adds a bunch of support code to construct shaders from
'facets', which bundle attributes needed for each layer of the
rendering system. At this point, that includes only the primitive and
the fill stuff.
v2: Correct comment in glamor transform about 1/2 pixel correction needed
for GL_POINT. (Eric Anholt)
v3: Rebase on Markus's cleanups (change by anholt)
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
95 lines
3.5 KiB
C
95 lines
3.5 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;
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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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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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