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