From: Bartosz Kosiorek gang65@poczta.onet.pl
--- dlls/gdiplus/graphics.c | 3 +- dlls/gdiplus/tests/image.c | 91 ++++++++++++++++++++++++-------------- 2 files changed, 59 insertions(+), 35 deletions(-)
diff --git a/dlls/gdiplus/graphics.c b/dlls/gdiplus/graphics.c index bbbf598f0e1..ec57199bd96 100644 --- a/dlls/gdiplus/graphics.c +++ b/dlls/gdiplus/graphics.c @@ -3252,10 +3252,11 @@ GpStatus WINGDIPAPI GdipDrawImagePointsRect(GpGraphics *graphics, GpImage *image (offset_mode == PixelOffsetModeHighQuality)) { // We are checking color in the middle of destination pixel, - // that's why we are adding 0.5 to destination area. + // The pixel center is at (0.5, 0.5). dst_pixel_offset = 0.5; } else + // The pixel center is at (0.0, 0.0). dst_pixel_offset = 0.0;
/* Calculate top left point of transformed image. diff --git a/dlls/gdiplus/tests/image.c b/dlls/gdiplus/tests/image.c index b9b3466ea4f..7a6b6efa1dd 100644 --- a/dlls/gdiplus/tests/image.c +++ b/dlls/gdiplus/tests/image.c @@ -4832,46 +4832,68 @@ static void test_DrawImage_scale(void) 0x80,0x80,0x80, 0xcc,0xcc,0xcc, 0xcc,0xcc,0xcc, 0x40,0x40,0x40 }; static const BYTE image_251_half[24] = { 0x40,0x40,0x40, 0x40,0x40,0x40, 0x40,0x40,0x40, 0x80,0x80,0x80, 0x80,0x80,0x80, 0xcc,0xcc,0xcc, 0xcc,0xcc,0xcc, 0xcc,0xcc,0xcc }; + + static const BYTE image_bil_080[24] = { 0x40,0x40,0x40, 0x93,0x93,0x93, 0x86,0x86,0x86, 0x40,0x40,0x40, + 0x40,0x40,0x40, 0x40,0x40,0x40, 0x40,0x40,0x40, 0x40,0x40,0x40 }; + static const BYTE image_bil_120[24] = { 0x40,0x40,0x40, 0x40,0x40,0x40, 0xb2,0xb2,0xb2, 0x87,0x87,0x87, + 0x40,0x40,0x40, 0x40,0x40,0x40, 0x40,0x40,0x40, 0x40,0x40,0x40 }; + static const BYTE image_bil_150[24] = { 0x40,0x40,0x40, 0x40,0x40,0x40, 0x99,0x99,0x99, 0xcc,0xcc,0xcc, + 0x6f,0x6f,0x6f, 0x40,0x40,0x40, 0x40,0x40,0x40, 0x40,0x40,0x40 }; + static const BYTE image_bil_180[24] = { 0x40,0x40,0x40, 0x40,0x40,0x40, 0x88,0x88,0x88, 0xb2,0xb2,0xb2, + 0xad,0xad,0xad, 0x5f,0x5f,0x5f, 0x40,0x40,0x40, 0x40,0x40,0x40 }; + static const BYTE image_bil_200[24] = { 0x40,0x40,0x40, 0x40,0x40,0x40, 0x80,0x80,0x80, 0xa6,0xa6,0xa6, + 0xcc,0xcc,0xcc, 0x86,0x86,0x86, 0x40,0x40,0x40, 0x40,0x40,0x40 }; + static const BYTE image_bil_250[24] = { 0x40,0x40,0x40, 0x40,0x40,0x40, 0x40,0x40,0x40, 0x8f,0x8f,0x8f, + 0xad,0xad,0xad, 0xcc,0xcc,0xcc, 0x95,0x95,0x95, 0x5c,0x5c,0x5c }; static const struct test_data { REAL scale_x; + InterpolationMode interpolation_mode; PixelOffsetMode pixel_offset_mode; const BYTE *image; BOOL todo; } td[] = { - { 0.8, PixelOffsetModeNone, image_080 }, /* 0 */ - { 1.0, PixelOffsetModeNone, image_100 }, - { 1.2, PixelOffsetModeNone, image_120 }, - { 1.5, PixelOffsetModeNone, image_150 }, - { 1.8, PixelOffsetModeNone, image_180 }, - { 2.0, PixelOffsetModeNone, image_200 }, - { 2.5, PixelOffsetModeNone, image_250 }, - - { 0.8, PixelOffsetModeHighSpeed, image_080 }, /* 7 */ - { 1.0, PixelOffsetModeHighSpeed, image_100 }, - { 1.2, PixelOffsetModeHighSpeed, image_120 }, - { 1.5, PixelOffsetModeHighSpeed, image_150 }, - { 1.8, PixelOffsetModeHighSpeed, image_180 }, - { 2.0, PixelOffsetModeHighSpeed, image_200 }, - { 2.5, PixelOffsetModeHighSpeed, image_250 }, - - { 0.8, PixelOffsetModeHalf, image_080 }, /* 14 */ - { 1.0, PixelOffsetModeHalf, image_100 }, - { 1.2, PixelOffsetModeHalf, image_120_half }, - { 1.5, PixelOffsetModeHalf, image_150_half, TRUE }, - { 1.8, PixelOffsetModeHalf, image_180_half }, - { 2.0, PixelOffsetModeHalf, image_200_half }, - { 2.5, PixelOffsetModeHalf, image_250_half, TRUE }, - - { 0.8, PixelOffsetModeHighQuality, image_080 }, /* 21 */ - { 1.0, PixelOffsetModeHighQuality, image_100 }, - { 1.2, PixelOffsetModeHighQuality, image_120_half }, - { 1.5, PixelOffsetModeHighQuality, image_150_half, TRUE }, - { 1.8, PixelOffsetModeHighQuality, image_180_half }, - { 2.0, PixelOffsetModeHighQuality, image_200_half }, - { 2.5, PixelOffsetModeHighQuality, image_250_half, TRUE }, - { 2.51, PixelOffsetModeHighQuality, image_251_half }, + { 0.8, InterpolationModeNearestNeighbor, PixelOffsetModeNone, image_080 }, /* 0 */ + { 1.0, InterpolationModeNearestNeighbor, PixelOffsetModeNone, image_100 }, + { 1.2, InterpolationModeNearestNeighbor, PixelOffsetModeNone, image_120 }, + { 1.5, InterpolationModeNearestNeighbor, PixelOffsetModeNone, image_150 }, + { 1.8, InterpolationModeNearestNeighbor, PixelOffsetModeNone, image_180 }, + { 2.0, InterpolationModeNearestNeighbor, PixelOffsetModeNone, image_200 }, + { 2.5, InterpolationModeNearestNeighbor, PixelOffsetModeNone, image_250 }, + + { 0.8, InterpolationModeNearestNeighbor, PixelOffsetModeHighSpeed, image_080 }, /* 7 */ + { 1.0, InterpolationModeNearestNeighbor, PixelOffsetModeHighSpeed, image_100 }, + { 1.2, InterpolationModeNearestNeighbor, PixelOffsetModeHighSpeed, image_120 }, + { 1.5, InterpolationModeNearestNeighbor, PixelOffsetModeHighSpeed, image_150 }, + { 1.8, InterpolationModeNearestNeighbor, PixelOffsetModeHighSpeed, image_180 }, + { 2.0, InterpolationModeNearestNeighbor, PixelOffsetModeHighSpeed, image_200 }, + { 2.5, InterpolationModeNearestNeighbor, PixelOffsetModeHighSpeed, image_250 }, + + { 0.8, InterpolationModeNearestNeighbor, PixelOffsetModeHalf, image_080 }, /* 14 */ + { 1.0, InterpolationModeNearestNeighbor, PixelOffsetModeHalf, image_100 }, + { 1.2, InterpolationModeNearestNeighbor, PixelOffsetModeHalf, image_120_half }, + { 1.5, InterpolationModeNearestNeighbor, PixelOffsetModeHalf, image_150_half, TRUE }, + { 1.8, InterpolationModeNearestNeighbor, PixelOffsetModeHalf, image_180_half }, + { 2.0, InterpolationModeNearestNeighbor, PixelOffsetModeHalf, image_200_half }, + { 2.5, InterpolationModeNearestNeighbor, PixelOffsetModeHalf, image_250_half, TRUE }, + + { 0.8, InterpolationModeNearestNeighbor, PixelOffsetModeHighQuality, image_080 }, /* 21 */ + { 1.0, InterpolationModeNearestNeighbor, PixelOffsetModeHighQuality, image_100 }, + { 1.2, InterpolationModeNearestNeighbor, PixelOffsetModeHighQuality, image_120_half }, + { 1.5, InterpolationModeNearestNeighbor, PixelOffsetModeHighQuality, image_150_half, TRUE }, + { 1.8, InterpolationModeNearestNeighbor, PixelOffsetModeHighQuality, image_180_half }, + { 2.0, InterpolationModeNearestNeighbor, PixelOffsetModeHighQuality, image_200_half }, + { 2.5, InterpolationModeNearestNeighbor, PixelOffsetModeHighQuality, image_250_half, TRUE }, + { 2.51, InterpolationModeNearestNeighbor, PixelOffsetModeHighQuality, image_251_half }, + + { 0.8, InterpolationModeBilinear, PixelOffsetModeNone, image_bil_080, TRUE }, /* 29 */ + { 1.0, InterpolationModeBilinear, PixelOffsetModeNone, image_100 }, + { 1.2, InterpolationModeBilinear, PixelOffsetModeNone, image_bil_120, TRUE }, + { 1.5, InterpolationModeBilinear, PixelOffsetModeNone, image_bil_150, TRUE }, + { 1.8, InterpolationModeBilinear, PixelOffsetModeNone, image_bil_180, TRUE }, + { 2.0, InterpolationModeBilinear, PixelOffsetModeNone, image_bil_200, TRUE }, + { 2.5, InterpolationModeBilinear, PixelOffsetModeNone, image_bil_250, TRUE }, }; BYTE src_2x1[6] = { 0x80,0x80,0x80, 0xcc,0xcc,0xcc }; BYTE dst_8x1[24]; @@ -4896,11 +4918,12 @@ static void test_DrawImage_scale(void) expect(Ok, status); status = GdipGetImageGraphicsContext(u2.image, &graphics); expect(Ok, status); - status = GdipSetInterpolationMode(graphics, InterpolationModeNearestNeighbor); - expect(Ok, status);
for (i = 0; i < ARRAY_SIZE(td); i++) { + status = GdipSetInterpolationMode(graphics, td[i].interpolation_mode); + expect(Ok, status); + status = GdipSetPixelOffsetMode(graphics, td[i].pixel_offset_mode); expect(Ok, status);