1 /*
2 * Copyright © 2014 Keith Packard
3 *
4 * Permission to use, copy, modify, distribute, and sell this software and its
5 * documentation for any purpose is hereby granted without fee, provided that
6 * the above copyright notice appear in all copies and that both that copyright
7 * notice and this permission notice appear in supporting documentation, and
8 * that the name of the copyright holders not be used in advertising or
9 * publicity pertaining to distribution of the software without specific,
10 * written prior permission. The copyright holders make no representations
11 * about the suitability of this software for any purpose. It is provided "as
12 * is" without express or implied warranty.
13 *
14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
20 * OF THIS SOFTWARE.
21 */
22
23 #ifndef _GLAMOR_TRANSFORM_H_
24 #define _GLAMOR_TRANSFORM_H_
25
26 Bool
27 glamor_set_destination_drawable(DrawablePtr drawable,
28 int box_index,
29 Bool do_drawable_translate,
30 Bool center_offset,
31 GLint matrix_uniform_location,
32 int *p_off_x,
33 int *p_off_y);
34
35 void
36 glamor_set_color_depth(ScreenPtr pScreen,
37 int depth,
38 CARD32 pixel,
39 GLint uniform);
40
41 static inline void
glamor_set_color(PixmapPtr pixmap,CARD32 pixel,GLint uniform)42 glamor_set_color(PixmapPtr pixmap,
43 CARD32 pixel,
44 GLint uniform)
45 {
46 glamor_set_color_depth(pixmap->drawable.pScreen,
47 pixmap->drawable.depth, pixel, uniform);
48 }
49
50 Bool
51 glamor_set_texture_pixmap(PixmapPtr texture,
52 Bool destination_red);
53
54 Bool
55 glamor_set_texture(PixmapPtr texture,
56 Bool destination_red,
57 int off_x,
58 int off_y,
59 GLint offset_uniform,
60 GLint size_uniform);
61
62 Bool
63 glamor_set_solid(PixmapPtr pixmap,
64 GCPtr gc,
65 Bool use_alu,
66 GLint uniform);
67
68 Bool
69 glamor_set_tiled(PixmapPtr pixmap,
70 GCPtr gc,
71 GLint offset_uniform,
72 GLint size_uniform);
73
74 Bool
75 glamor_set_stippled(PixmapPtr pixmap,
76 GCPtr gc,
77 GLint fg_uniform,
78 GLint offset_uniform,
79 GLint size_uniform);
80
81 /*
82 * Vertex shader bits that transform X coordinates to pixmap
83 * coordinates using the matrix computed above
84 */
85
86 #define GLAMOR_DECLARE_MATRIX "uniform vec4 v_matrix;\n"
87 #define GLAMOR_X_POS(x) #x " *v_matrix.x + v_matrix.y"
88 #define GLAMOR_Y_POS(y) #y " *v_matrix.z + v_matrix.w"
89 #if 0
90 #define GLAMOR_POS(dst,src) \
91 " " #dst ".x = " #src ".x * v_matrix.x + v_matrix.y;\n" \
92 " " #dst ".y = " #src ".y * v_matrix.z + v_matrix.w;\n" \
93 " " #dst ".z = 0.0;\n" \
94 " " #dst ".w = 1.0;\n"
95 #endif
96 #define GLAMOR_POS(dst,src) \
97 " " #dst ".xy = " #src ".xy * v_matrix.xz + v_matrix.yw;\n" \
98 " " #dst ".zw = vec2(0.0,1.0);\n"
99
100 #endif /* _GLAMOR_TRANSFORM_H_ */
101