Module: wine Branch: master Commit: d43d17e24857fafcb7964c91d8a7a05520964df3 URL: http://source.winehq.org/git/wine.git/?a=commit;h=d43d17e24857fafcb7964c91d8...
Author: Huw Davies huw@codeweavers.com Date: Mon Nov 14 12:49:08 2011 +0000
gdi32/tests: Add tests for text rendering.
---
dlls/gdi32/tests/dib.c | 195 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 195 insertions(+), 0 deletions(-)
diff --git a/dlls/gdi32/tests/dib.c b/dlls/gdi32/tests/dib.c index c358196..bd33df7 100644 --- a/dlls/gdi32/tests/dib.c +++ b/dlls/gdi32/tests/dib.c @@ -2021,6 +2021,187 @@ static void draw_graphics(HDC hdc, BITMAPINFO *bmi, BYTE *bits, const char ***sh DeleteObject(solid_pen); }
+static const BYTE ramp[17] = +{ + 0, 0x4d, 0x68, 0x7c, + 0x8c, 0x9a, 0xa7, 0xb2, + 0xbd, 0xc7, 0xd0, 0xd9, + 0xe1, 0xe9, 0xf0, 0xf8, + 0xff +}; + +static inline void get_range(BYTE alpha, DWORD text_comp, BYTE *min_comp, BYTE *max_comp) +{ + *min_comp = (ramp[alpha] * text_comp) / 0xff; + *max_comp = ramp[16 - alpha] + ((0xff - ramp[16 - alpha]) * text_comp) / 0xff; +} + +static inline BYTE aa_comp(BYTE dst, BYTE text, BYTE alpha) +{ + BYTE min_comp, max_comp; + + if (alpha == 16) return text; + if (alpha <= 1) return dst; + if (text == dst) return dst; + + get_range( alpha, text, &min_comp, &max_comp ); + + if (dst > text) + { + DWORD diff = dst - text; + DWORD range = max_comp - text; + dst = text + (diff * range ) / (0xff - text); + return dst; + } + else + { + DWORD diff = text - dst; + DWORD range = text - min_comp ; + dst = text - (diff * range) / text; + return dst; + } +} + +static inline COLORREF aa_colorref( COLORREF dst, COLORREF text, BYTE glyph ) +{ + COLORREF ret; + + ret = RGB( aa_comp( GetRValue(dst), GetRValue(text), glyph ), + aa_comp( GetGValue(dst), GetGValue(text), glyph ), + aa_comp( GetBValue(dst), GetBValue(text), glyph ) ); + return ret; +} + +static const BYTE masks[8] = {0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01}; + +static void draw_text_2( HDC hdc, BITMAPINFO *bmi, BYTE *bits, BOOL aa ) +{ + DWORD dib_size = get_dib_size(bmi), ret; + LOGFONT lf; + HFONT font; + GLYPHMETRICS gm; + BYTE g_buf[10000]; + int i, stride, x, y; + static const MAT2 identity = { {0,1}, {0,0}, {0,0}, {0,1} }; + char *eto_hash = NULL, *diy_hash = NULL; + static const char *str = "Hello Wine"; + POINT origin, g_org; + static const BYTE vals[4] = { 0x00, 0x00, 0x00, 0x00 }; + TEXTMETRIC tm; + COLORREF text_color; + + for(i = 0; i < dib_size; i++) + bits[i] = vals[i % 4]; + + memset( &lf, 0, sizeof(lf) ); + strcpy( lf.lfFaceName, "Tahoma" ); + lf.lfHeight = 24; + lf.lfQuality = aa ? ANTIALIASED_QUALITY : NONANTIALIASED_QUALITY; + + font = CreateFontIndirect( &lf ); + font = SelectObject( hdc, font ); + + GetTextMetrics( hdc, &tm ); + if (!(tm.tmPitchAndFamily & TMPF_VECTOR)) + { + skip( "skipping as a bitmap font has been selected for Tahoma.\n" ); + DeleteObject( SelectObject( hdc, font ) ); + return; + } + + SetTextColor( hdc, RGB(0xff, 0x00, 0x00) ); + SetTextAlign( hdc, TA_BASELINE ); + SetBkMode( hdc, TRANSPARENT ); + origin.x = 10; + origin.y = 100; + + ExtTextOut( hdc, origin.x, origin.y, 0, NULL, str, strlen(str), NULL ); + eto_hash = hash_dib( bmi, bits ); + + for(i = 0; i < dib_size; i++) + bits[i] = vals[i % 4]; + + if (bmi->bmiHeader.biBitCount <= 8) aa = FALSE; + + text_color = GetTextColor( hdc ); + for (i = 0; i < strlen(str); i++) + { + DWORD ggo_flags = aa ? GGO_GRAY4_BITMAP : GGO_BITMAP; + + ret = GetGlyphOutline( hdc, str[i], ggo_flags, &gm, 0, NULL, &identity ); + + if (ret == GDI_ERROR) continue; + + if (ret) GetGlyphOutline( hdc, str[i], ggo_flags, &gm, sizeof(g_buf), g_buf, &identity ); + + g_org.x = origin.x + gm.gmptGlyphOrigin.x; + g_org.y = origin.y - gm.gmptGlyphOrigin.y; + + origin.x += gm.gmCellIncX; + origin.y += gm.gmCellIncY; + + if (!ret) continue; + + if (aa) + { + stride = (gm.gmBlackBoxX + 3) & ~3; + + for (y = 0; y < gm.gmBlackBoxY; y++) + { + BYTE *g_ptr = g_buf + y * stride; + COLORREF val; + + for (x = 0; x < gm.gmBlackBoxX; x++) + { + if (g_ptr[x] <= 1) continue; + if (g_ptr[x] >= 16) val = text_color; + else + { + val = GetPixel( hdc, g_org.x + x, g_org.y + y ); + val = aa_colorref( val, text_color, g_ptr[x] ); + } + SetPixel( hdc, g_org.x + x, g_org.y + y, val ); + } + } + } + else + { + stride = ((gm.gmBlackBoxX + 31) >> 3) & ~3; + + for (y = 0; y < gm.gmBlackBoxY; y++) + { + BYTE *g_ptr = g_buf + y * stride; + for (x = 0; x < gm.gmBlackBoxX; x++) + { + if (g_ptr[x / 8] & masks[x % 8]) + SetPixel( hdc, g_org.x + x, g_org.y + y, text_color ); + } + } + } + } + + diy_hash = hash_dib( bmi, bits ); + ok( !strcmp( eto_hash, diy_hash ), "hash mismatch - aa %d\n", aa ); + + HeapFree( GetProcessHeap(), 0, diy_hash ); + HeapFree( GetProcessHeap(), 0, eto_hash ); + + font = SelectObject( hdc, font ); + DeleteObject( font ); +} + +static void draw_text( HDC hdc, BITMAPINFO *bmi, BYTE *bits ) +{ + draw_text_2( hdc, bmi, bits, FALSE ); + + /* Rounding errors make these cases hard to test */ + if ((bmi->bmiHeader.biCompression == BI_BITFIELDS && ((DWORD*)bmi->bmiColors)[0] == 0x3f000) || + (bmi->bmiHeader.biBitCount == 16)) + return; + + draw_text_2( hdc, bmi, bits, TRUE ); +} + static void test_simple_graphics(void) { char bmibuf[sizeof(BITMAPINFO) + 256 * sizeof(RGBQUAD)]; @@ -2061,6 +2242,7 @@ static void test_simple_graphics(void) dst_format = "8888"; sha1 = sha1_graphics_a8r8g8b8; draw_graphics(mem_dc, bmi, bits, &sha1); + draw_text(mem_dc, bmi, bits);
SelectObject(mem_dc, orig_bm); DeleteObject(dib); @@ -2086,6 +2268,7 @@ static void test_simple_graphics(void) dst_format = "8888 - bitfields"; sha1 = sha1_graphics_a8r8g8b8; draw_graphics(mem_dc, bmi, bits, &sha1); + draw_text(mem_dc, bmi, bits);
SelectObject(mem_dc, orig_bm); DeleteObject(dib); @@ -2111,6 +2294,7 @@ static void test_simple_graphics(void) dst_format = "a8b8g8r8"; sha1 = sha1_graphics_a8b8g8r8; draw_graphics(mem_dc, bmi, bits, &sha1); + draw_text(mem_dc, bmi, bits);
SelectObject(mem_dc, orig_bm); DeleteObject(dib); @@ -2136,6 +2320,7 @@ static void test_simple_graphics(void) dst_format = "r10g10b10"; sha1 = sha1_graphics_r10g10b10; draw_graphics(mem_dc, bmi, bits, &sha1); + draw_text(mem_dc, bmi, bits);
SelectObject(mem_dc, orig_bm); DeleteObject(dib); @@ -2161,6 +2346,7 @@ static void test_simple_graphics(void) dst_format = "r6g6b6"; sha1 = sha1_graphics_r6g6b6; draw_graphics(mem_dc, bmi, bits, &sha1); + draw_text(mem_dc, bmi, bits);
SelectObject(mem_dc, orig_bm); DeleteObject(dib); @@ -2177,6 +2363,7 @@ static void test_simple_graphics(void) dst_format = "24"; sha1 = sha1_graphics_24; draw_graphics(mem_dc, bmi, bits, &sha1); + draw_text(mem_dc, bmi, bits);
SelectObject(mem_dc, orig_bm); DeleteObject(dib); @@ -2199,6 +2386,7 @@ static void test_simple_graphics(void) dst_format = "r5g5b5"; sha1 = sha1_graphics_r5g5b5; draw_graphics(mem_dc, bmi, bits, &sha1); + draw_text(mem_dc, bmi, bits);
SelectObject(mem_dc, orig_bm); DeleteObject(dib); @@ -2223,6 +2411,7 @@ static void test_simple_graphics(void) dst_format = "r4g4b4"; sha1 = sha1_graphics_r4g4b4; draw_graphics(mem_dc, bmi, bits, &sha1); + draw_text(mem_dc, bmi, bits);
SelectObject(mem_dc, orig_bm); DeleteObject(dib); @@ -2246,6 +2435,7 @@ static void test_simple_graphics(void) dst_format = "8 color"; sha1 = sha1_graphics_8_color; draw_graphics(mem_dc, bmi, bits, &sha1); + draw_text(mem_dc, bmi, bits);
SelectObject(mem_dc, orig_bm); DeleteObject(dib); @@ -2265,6 +2455,7 @@ static void test_simple_graphics(void) dst_format = "8 grayscale"; sha1 = sha1_graphics_8_grayscale; draw_graphics(mem_dc, bmi, bits, &sha1); + draw_text(mem_dc, bmi, bits);
SelectObject(mem_dc, orig_bm); DeleteObject(dib); @@ -2298,6 +2489,7 @@ static void test_simple_graphics(void) dst_format = "8"; sha1 = sha1_graphics_8; draw_graphics(mem_dc, bmi, bits, &sha1); + draw_text(mem_dc, bmi, bits);
SelectObject(mem_dc, orig_bm); DeleteObject(dib); @@ -2314,6 +2506,7 @@ static void test_simple_graphics(void) dst_format = "4"; sha1 = sha1_graphics_4; draw_graphics(mem_dc, bmi, bits, &sha1); + draw_text(mem_dc, bmi, bits);
SelectObject(mem_dc, orig_bm); DeleteObject(dib); @@ -2331,6 +2524,7 @@ static void test_simple_graphics(void) dst_format = "4 grayscale"; sha1 = sha1_graphics_4_grayscale; draw_graphics(mem_dc, bmi, bits, &sha1); + draw_text(mem_dc, bmi, bits);
SelectObject(mem_dc, orig_bm); DeleteObject(dib); @@ -2355,6 +2549,7 @@ static void test_simple_graphics(void) dst_format = "1"; sha1 = sha1_graphics_1; draw_graphics(mem_dc, bmi, bits, &sha1); + draw_text(mem_dc, bmi, bits);
SelectObject(mem_dc, orig_bm); DeleteObject(dib);
-
Alexandre Julliard