diff options
Diffstat (limited to 'fpdfsdk/fpdfview_embeddertest.cpp')
| -rw-r--r-- | fpdfsdk/fpdfview_embeddertest.cpp | 113 |
1 files changed, 79 insertions, 34 deletions
diff --git a/fpdfsdk/fpdfview_embeddertest.cpp b/fpdfsdk/fpdfview_embeddertest.cpp index 8576104c2e..97ba9d7c4c 100644 --- a/fpdfsdk/fpdfview_embeddertest.cpp +++ b/fpdfsdk/fpdfview_embeddertest.cpp @@ -5,6 +5,7 @@ #include <limits> #include <string> +#include "core/fxcrt/fx_coordinates.h" #include "fpdfsdk/fpdfview_c_api_test.h" #include "public/fpdfview.h" #include "testing/embedder_test.h" @@ -350,75 +351,119 @@ TEST_F(FPDFViewEmbeddertest, Hang_360) { } TEST_F(FPDFViewEmbeddertest, FPDF_RenderPageBitmapWithMatrix) { - const char kOriginalMD5[] = "210157942bcce97b057a1107a1fd62f8"; - const char kTopLeftQuarterMD5[] = "c54d58dda13e3cd04eb63e1d0db0feda"; - const char kTrimmedMD5[] = "88225d7951a21d0eef191cfed06c36ce"; - const char kRotatedMD5[] = "7d38bc58aa50ad271bc432e77256d3de"; + const char* const kRotatedMD5[4] = { + "0a90de37f52127619c3dfb642b5fa2fe", "d599429574ff0dcad3bc898ea8b874ca", + "0113386bb0bd45125bacc6dee78bfe78", "051fcfa4c1f9de28765705633a8ef3a9"}; + const char kTopLeftQuarterMD5[] = "4982be08db3f6d2e6409186ebbced9eb"; + const char kHoriStretchedMD5[] = "004bf38f3c5c76a644e6fca204747f21"; + const char kRotateandStretchMD5[] = "0ea95cacc716d003cf063a2c5ed6c8d7"; EXPECT_TRUE(OpenDocument("rectangles.pdf")); FPDF_PAGE page = LoadPage(0); EXPECT_NE(nullptr, page); - const int width = static_cast<int>(FPDF_GetPageWidth(page)); - const int height = static_cast<int>(FPDF_GetPageHeight(page)); - EXPECT_EQ(200, width); - EXPECT_EQ(200, height); + const int initial_width = static_cast<int>(FPDF_GetPageWidth(page)); + const int initial_height = static_cast<int>(FPDF_GetPageHeight(page)); + EXPECT_EQ(200, initial_width); + EXPECT_EQ(300, initial_height); FPDF_BITMAP bitmap = RenderPage(page); - CompareBitmap(bitmap, width, height, kOriginalMD5); + CompareBitmap(bitmap, initial_width, initial_height, kRotatedMD5[0]); FPDFBitmap_Destroy(bitmap); - // Try rendering with an identity matrix. The output should be the same as - // the RenderPage() output. - FS_MATRIX matrix; - matrix.a = 1; - matrix.b = 0; - matrix.c = 0; - matrix.d = 1; - matrix.e = 0; - matrix.f = 0; - + int width; + int height; FS_RECTF rect; rect.left = 0; rect.top = 0; - rect.right = width; - rect.bottom = height; + FS_MATRIX matrix; - bitmap = FPDFBitmap_Create(width, height, 0); - FPDFBitmap_FillRect(bitmap, 0, 0, width, height, 0xFFFFFFFF); - FPDF_RenderPageBitmapWithMatrix(bitmap, page, &matrix, &rect, 0); - CompareBitmap(bitmap, width, height, kOriginalMD5); - FPDFBitmap_Destroy(bitmap); + // Try the easy rotations: 0, 90, 180, 270 clockwise. The output should be the + // same as FPDF_RenderPageBitmap with the appropriate rotation flag. Per PDF + // spec section 4.2.2, a t degree rotation is represented by [cos(t) sin(t) + // -sin(t) cos(t) 0 0] (matrix goes on the right in the multiplication). + rect.right = initial_width; + rect.bottom = initial_height; + CFX_Matrix rot_matrices[4] = { + CFX_Matrix(1, 0, 0, 1, 0, 0), CFX_Matrix(0, -1, 1, 0, 0, 0), + CFX_Matrix(-1, 0, 0, -1, 0, 0), CFX_Matrix(0, 1, -1, 0, 0, 0)}; + for (int rot = 0; rot < 4; ++rot) { + matrix.a = rot_matrices[rot].a; + matrix.b = rot_matrices[rot].b; + matrix.c = rot_matrices[rot].c; + matrix.d = rot_matrices[rot].d; + matrix.e = rot_matrices[rot].e; + matrix.f = rot_matrices[rot].f; + if (rot % 2 == 0) { + width = initial_width; + height = initial_height; + } else { + width = initial_height; + height = initial_width; + } + rect.right = width; + rect.bottom = height; + + bitmap = FPDFBitmap_Create(width, height, 0); + FPDFBitmap_FillRect(bitmap, 0, 0, width, height, 0xFFFFFFFF); + FPDF_RenderPageBitmap(bitmap, page, 0, 0, width, height, rot, 0); + CompareBitmap(bitmap, width, height, kRotatedMD5[rot]); + FPDFBitmap_Destroy(bitmap); + + bitmap = FPDFBitmap_Create(width, height, 0); + FPDFBitmap_FillRect(bitmap, 0, 0, width, height, 0xFFFFFFFF); + FPDF_RenderPageBitmapWithMatrix(bitmap, page, &matrix, &rect, 0); + CompareBitmap(bitmap, width, height, kRotatedMD5[rot]); + FPDFBitmap_Destroy(bitmap); + } + // TODO(npm): what to do with transformations that do not align the page with + // the axis, like a 45 degree rotation (currently, part of the page gets cut + // out). pdfium:849 // Now render again with the image scaled smaller. + width = initial_width / 2; + height = initial_height / 2; matrix.a = 0.5; + matrix.b = 0; + matrix.c = 0; matrix.d = 0.5; + rect.right = width; + rect.bottom = height; + bitmap = FPDFBitmap_Create(width, height, 0); FPDFBitmap_FillRect(bitmap, 0, 0, width, height, 0xFFFFFFFF); FPDF_RenderPageBitmapWithMatrix(bitmap, page, &matrix, &rect, 0); CompareBitmap(bitmap, width, height, kTopLeftQuarterMD5); FPDFBitmap_Destroy(bitmap); - // Now render again with the image scaled larger horizontally (will be - // trimmed). + // Now render again with the image scaled larger horizontally. + width = initial_width * 2; + height = initial_height; matrix.a = 2; matrix.d = 1; + rect.right = width; + rect.bottom = height; bitmap = FPDFBitmap_Create(width, height, 0); FPDFBitmap_FillRect(bitmap, 0, 0, width, height, 0xFFFFFFFF); FPDF_RenderPageBitmapWithMatrix(bitmap, page, &matrix, &rect, 0); - CompareBitmap(bitmap, width, height, kTrimmedMD5); + CompareBitmap(bitmap, width, height, kHoriStretchedMD5); FPDFBitmap_Destroy(bitmap); - // Now try a 90 degree rotation + // Test a rotation followed by a stretch. + width = initial_height * 2; + height = initial_width; matrix.a = 0; - matrix.b = 1; - matrix.c = -1; + matrix.b = -1; + matrix.c = 2; matrix.d = 0; - matrix.e = width; + matrix.e = 0; + matrix.f = 0; + rect.right = width; + rect.bottom = height; bitmap = FPDFBitmap_Create(width, height, 0); FPDFBitmap_FillRect(bitmap, 0, 0, width, height, 0xFFFFFFFF); FPDF_RenderPageBitmapWithMatrix(bitmap, page, &matrix, &rect, 0); - CompareBitmap(bitmap, width, height, kRotatedMD5); + CompareBitmap(bitmap, width, height, kRotateandStretchMD5); FPDFBitmap_Destroy(bitmap); UnloadPage(page); |