Cross Reference: /external/skia/tests/BlendTest.cpp

Lines Matching refs:alpha
28                  uint8_t dst, uint8_t src, uint8_t alpha) {
29     const uint8_t golden = blend_double_round(dst, src, alpha);
30     const uint8_t  blend =          algorithm(dst, src, alpha);
32         SkDebugf("dst %02x, src %02x, alpha %02x, |%02x - %02x| > %d\n",
33                  dst, src, alpha, blend, golden, maxDiff);
38 // Exhaustively compare an algorithm against our golden, for a given alpha.
39 static void test_alpha(skiatest::Reporter* r, uint8_t alpha, int maxDiff, Blend algorithm) {
42     for (unsigned src = 0; src <= alpha; src++) {
44             test(r, maxDiff, algorithm, dst, src, alpha);
53     for (unsigned alpha = 0; alpha < 256; alpha++) {
54         for (unsigned src = 0; src <= alpha; src++) {
55             test(r, maxDiff, algorithm, dst, src, alpha);
124     const uint8_t alpha = 0x00;
127     test_alpha(r, alpha, 0, blend_256_round);
128     test_alpha(r, alpha, 0, blend_256_round_alt);
129     test_alpha(r, alpha, 0, blend_256_trunc);
130     test_alpha(r, alpha, 0, blend_double_trunc);
131     test_alpha(r, alpha, 0, blend_float_round);
132     test_alpha(r, alpha, 0, blend_float_trunc);
133     test_alpha(r, alpha, 0, blend_perfect);
136     test_alpha(r, alpha, 1, blend_255_round);
137     test_alpha(r, alpha, 1, blend_255_trunc);
138     test_alpha(r, alpha, 1, blend_256_plus1_round);
139     test_alpha(r, alpha, 1, blend_256_plus1_trunc);
164     const uint8_t alpha = 0xFF;
167     test_alpha(r, alpha, 0, blend_255_round);
168     test_alpha(r, alpha, 0, blend_255_trunc);
169     test_alpha(r, alpha, 0, blend_256_plus1_round);
170     test_alpha(r, alpha, 0, blend_256_plus1_trunc);
171     test_alpha(r, alpha, 0, blend_256_round);
172     test_alpha(r, alpha, 0, blend_256_round_alt);
173     test_alpha(r, alpha, 0, blend_256_trunc);
174     test_alpha(r, alpha, 0, blend_double_trunc);
175     test_alpha(r, alpha, 0, blend_float_round);
176     test_alpha(r, alpha, 0, blend_float_trunc);
177     test_alpha(r, alpha, 0, blend_perfect);
204     for (unsigned alpha = 0; alpha < 256; alpha++) {
206         test_alpha(r, alpha, 0, blend_float_round);
207         test_alpha(r, alpha, 0, blend_perfect);
210         test_alpha(r, alpha, 1, blend_255_round);
211         test_alpha(r, alpha, 1, blend_256_plus1_round);
212         test_alpha(r, alpha, 1, blend_256_round);
213         test_alpha(r, alpha, 1, blend_256_round_alt);
214         test_alpha(r, alpha, 1, blend_256_trunc);
215         test_alpha(r, alpha, 1, blend_double_trunc);
216         test_alpha(r, alpha, 1, blend_float_trunc);
219         test_alpha(r, alpha, 2, blend_255_trunc);
220         test_alpha(r, alpha, 2, blend_256_plus1_trunc);