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gradient.h
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef FLUTTER_IMPELLER_GEOMETRY_GRADIENT_H_
6 #define FLUTTER_IMPELLER_GEOMETRY_GRADIENT_H_
7
8 #include <cstdint>
9 #include <memory>
10 #include <vector>
11
12 #include "impeller/geometry/color.h"
13 #include "impeller/geometry/path.h"
14 #include "impeller/geometry/point.h"
15
16 namespace impeller {
17
18 // If texture_size is 0 then the gradient is invalid.
19 struct GradientData {
20 std::vector<uint8_t> color_bytes;
21 uint32_t texture_size;
22 };
23
24 /**
25 * @brief Populate a vector with the interpolated color bytes for the linear
26 * gradient described by colors and stops.
27 *
28 * @param colors
29 * @param stops
30 * @return GradientData
31 */
32 GradientData CreateGradientBuffer(const std::vector<Color>& colors,
33 const std::vector<Scalar>& stops);
34
35 } // namespace impeller
36
37 #endif // FLUTTER_IMPELLER_GEOMETRY_GRADIENT_H_
path.h
point.h
impeller::GradientData::texture_size
uint32_t texture_size
Definition: gradient.h:21
impeller::GradientData::color_bytes
std::vector< uint8_t > color_bytes
Definition: gradient.h:20
impeller::CreateGradientBuffer
GradientData CreateGradientBuffer(const std::vector< Color > &colors, const std::vector< Scalar > &stops)
Populate a vector with the interpolated color bytes for the linear gradient described by colors and s...
Definition: gradient.cc:20
impeller::GradientData
Definition: gradient.h:19
color.h
impeller
Definition: aiks_blur_unittests.cc:20