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gdi32: Add a helper function to look up color table entries, and default to 0 for missing entries.

This commit is contained in:
Alexandre Julliard 2011-10-12 20:14:13 +02:00
parent d1d8b4de0b
commit 8a41d75e29
1 changed files with 31 additions and 64 deletions
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95
dlls/gdi32/dibdrv/primitives.c
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@ -1105,6 +1105,13 @@ static DWORD colorref_to_pixel_null(const dib_info *dib, COLORREF color)
return 0;
}
static inline RGBQUAD colortable_entry(const dib_info *dib, DWORD index)
{
static const RGBQUAD default_rgb;
if (index < dib->color_table_size) return dib->color_table[index];
return default_rgb;
}
static inline BOOL bit_fields_match(const dib_info *d1, const dib_info *d2)
{
assert( d1->bit_count > 8 && d1->bit_count == d2->bit_count );
@ -1269,10 +1276,7 @@ static BOOL convert_to_8888(dib_info *dst, const dib_info *src, const RECT *src_
src_pixel = src_start;
for(x = src_rect->left; x < src_rect->right; x++)
{
RGBQUAD rgb;
src_val = *src_pixel++;
if(src_val >= src->color_table_size) src_val = src->color_table_size - 1;
rgb = src->color_table[src_val];
RGBQUAD rgb = colortable_entry( src, *src_pixel++ );
*dst_pixel++ = rgb.rgbRed << 16 | rgb.rgbGreen << 8 | rgb.rgbBlue;
}
if(pad_size) memset(dst_pixel, 0, pad_size);
@ -1293,11 +1297,9 @@ static BOOL convert_to_8888(dib_info *dst, const dib_info *src, const RECT *src_
{
RGBQUAD rgb;
if(x & 1)
src_val = *src_pixel++ & 0xf;
rgb = colortable_entry( src, *src_pixel++ & 0xf );
else
src_val = (*src_pixel >> 4) & 0xf;
if(src_val >= src->color_table_size) src_val = src->color_table_size - 1;
rgb = src->color_table[src_val];
rgb = colortable_entry( src, *src_pixel >> 4 );
*dst_pixel++ = rgb.rgbRed << 16 | rgb.rgbGreen << 8 | rgb.rgbBlue;
}
if(pad_size) memset(dst_pixel, 0, pad_size);
@ -1515,10 +1517,7 @@ static BOOL convert_to_32(dib_info *dst, const dib_info *src, const RECT *src_re
src_pixel = src_start;
for(x = src_rect->left; x < src_rect->right; x++)
{
RGBQUAD rgb;
src_val = *src_pixel++;
if(src_val >= src->color_table_size) src_val = src->color_table_size - 1;
rgb = src->color_table[src_val];
RGBQUAD rgb = colortable_entry( src, *src_pixel++ );
*dst_pixel++ = put_field(rgb.rgbRed, dst->red_shift, dst->red_len) |
put_field(rgb.rgbGreen, dst->green_shift, dst->green_len) |
put_field(rgb.rgbBlue, dst->blue_shift, dst->blue_len);
@ -1541,11 +1540,9 @@ static BOOL convert_to_32(dib_info *dst, const dib_info *src, const RECT *src_re
{
RGBQUAD rgb;
if(x & 1)
src_val = *src_pixel++ & 0xf;
rgb = colortable_entry( src, *src_pixel++ & 0xf );
else
src_val = (*src_pixel >> 4) & 0xf;
if(src_val >= src->color_table_size) src_val = src->color_table_size - 1;
rgb = src->color_table[src_val];
rgb = colortable_entry( src, *src_pixel >> 4 );
*dst_pixel++ = put_field(rgb.rgbRed, dst->red_shift, dst->red_len) |
put_field(rgb.rgbGreen, dst->green_shift, dst->green_len) |
put_field(rgb.rgbBlue, dst->blue_shift, dst->blue_len);
@ -1743,10 +1740,7 @@ static BOOL convert_to_24(dib_info *dst, const dib_info *src, const RECT *src_re
src_pixel = src_start;
for(x = src_rect->left; x < src_rect->right; x++)
{
RGBQUAD rgb;
src_val = *src_pixel++;
if(src_val >= src->color_table_size) src_val = src->color_table_size - 1;
rgb = src->color_table[src_val];
RGBQUAD rgb = colortable_entry( src, *src_pixel++ );
*dst_pixel++ = rgb.rgbBlue;
*dst_pixel++ = rgb.rgbGreen;
*dst_pixel++ = rgb.rgbRed;
@ -1769,11 +1763,9 @@ static BOOL convert_to_24(dib_info *dst, const dib_info *src, const RECT *src_re
{
RGBQUAD rgb;
if(x & 1)
src_val = *src_pixel++ & 0xf;
rgb = colortable_entry( src, *src_pixel++ & 0xf );
else
src_val = (*src_pixel >> 4) & 0xf;
if(src_val >= src->color_table_size) src_val = src->color_table_size - 1;
rgb = src->color_table[src_val];
rgb = colortable_entry( src, *src_pixel >> 4 );
*dst_pixel++ = rgb.rgbBlue;
*dst_pixel++ = rgb.rgbGreen;
*dst_pixel++ = rgb.rgbRed;
@ -1970,10 +1962,7 @@ static BOOL convert_to_555(dib_info *dst, const dib_info *src, const RECT *src_r
src_pixel = src_start;
for(x = src_rect->left; x < src_rect->right; x++)
{
RGBQUAD rgb;
src_val = *src_pixel++;
if(src_val >= src->color_table_size) src_val = src->color_table_size - 1;
rgb = src->color_table[src_val];
RGBQUAD rgb = colortable_entry( src, *src_pixel++ );
*dst_pixel++ = ((rgb.rgbRed << 7) & 0x7c00) |
((rgb.rgbGreen << 2) & 0x03e0) |
((rgb.rgbBlue >> 3) & 0x001f);
@ -1996,11 +1985,9 @@ static BOOL convert_to_555(dib_info *dst, const dib_info *src, const RECT *src_r
{
RGBQUAD rgb;
if(x & 1)
src_val = *src_pixel++ & 0xf;
rgb = colortable_entry( src, *src_pixel++ & 0xf );
else
src_val = (*src_pixel >> 4) & 0xf;
if(src_val >= src->color_table_size) src_val = src->color_table_size - 1;
rgb = src->color_table[src_val];
rgb = colortable_entry( src, *src_pixel >> 4 );
*dst_pixel++ = ((rgb.rgbRed << 7) & 0x7c00) |
((rgb.rgbGreen << 2) & 0x03e0) |
((rgb.rgbBlue >> 3) & 0x001f);
@ -2222,10 +2209,7 @@ static BOOL convert_to_16(dib_info *dst, const dib_info *src, const RECT *src_re
src_pixel = src_start;
for(x = src_rect->left; x < src_rect->right; x++)
{
RGBQUAD rgb;
src_val = *src_pixel++;
if(src_val >= src->color_table_size) src_val = src->color_table_size - 1;
rgb = src->color_table[src_val];
RGBQUAD rgb = colortable_entry( src, *src_pixel++ );
*dst_pixel++ = put_field(rgb.rgbRed, dst->red_shift, dst->red_len) |
put_field(rgb.rgbGreen, dst->green_shift, dst->green_len) |
put_field(rgb.rgbBlue, dst->blue_shift, dst->blue_len);
@ -2248,11 +2232,9 @@ static BOOL convert_to_16(dib_info *dst, const dib_info *src, const RECT *src_re
{
RGBQUAD rgb;
if(x & 1)
src_val = *src_pixel++ & 0xf;
rgb = colortable_entry( src, *src_pixel++ & 0xf );
else
src_val = (*src_pixel >> 4) & 0xf;
if(src_val >= src->color_table_size) src_val = src->color_table_size - 1;
rgb = src->color_table[src_val];
rgb = colortable_entry( src, *src_pixel >> 4 );
*dst_pixel++ = put_field(rgb.rgbRed, dst->red_shift, dst->red_len) |
put_field(rgb.rgbGreen, dst->green_shift, dst->green_len) |
put_field(rgb.rgbBlue, dst->blue_shift, dst->blue_len);
@ -2484,10 +2466,7 @@ static BOOL convert_to_8(dib_info *dst, const dib_info *src, const RECT *src_rec
src_pixel = src_start;
for(x = src_rect->left; x < src_rect->right; x++)
{
RGBQUAD rgb;
src_val = *src_pixel++;
if(src_val >= src->color_table_size) src_val = src->color_table_size - 1;
rgb = src->color_table[src_val];
RGBQUAD rgb = colortable_entry( src, *src_pixel++ );
*dst_pixel++ = colorref_to_pixel_colortable(dst, RGB(rgb.rgbRed, rgb.rgbGreen, rgb.rgbBlue));
}
if(pad_size) memset(dst_pixel, 0, pad_size);
@ -2509,11 +2488,9 @@ static BOOL convert_to_8(dib_info *dst, const dib_info *src, const RECT *src_rec
{
RGBQUAD rgb;
if(x & 1)
src_val = *src_pixel++ & 0xf;
rgb = colortable_entry( src, *src_pixel++ & 0xf );
else
src_val = (*src_pixel >> 4) & 0xf;
if(src_val >= src->color_table_size) src_val = src->color_table_size - 1;
rgb = src->color_table[src_val];
rgb = colortable_entry( src, *src_pixel >> 4 );
*dst_pixel++ = colorref_to_pixel_colortable(dst, RGB(rgb.rgbRed, rgb.rgbGreen, rgb.rgbBlue));
}
if(pad_size) memset(dst_pixel, 0, pad_size);
@ -2783,10 +2760,7 @@ static BOOL convert_to_4(dib_info *dst, const dib_info *src, const RECT *src_rec
src_pixel = src_start;
for(x = src_rect->left; x < src_rect->right; x++)
{
RGBQUAD rgb;
src_val = *src_pixel++;
if(src_val >= src->color_table_size) src_val = src->color_table_size - 1;
rgb = src->color_table[src_val];
RGBQUAD rgb = colortable_entry( src, *src_pixel++ );
dst_val = colorref_to_pixel_colortable(dst, RGB(rgb.rgbRed, rgb.rgbGreen, rgb.rgbBlue));
if((x - src_rect->left) & 1)
{
@ -2836,11 +2810,9 @@ static BOOL convert_to_4(dib_info *dst, const dib_info *src, const RECT *src_rec
{
RGBQUAD rgb;
if(x & 1)
src_val = *src_pixel++ & 0xf;
rgb = colortable_entry( src, *src_pixel++ & 0xf );
else
src_val = (*src_pixel >> 4) & 0xf;
if(src_val >= src->color_table_size) src_val = src->color_table_size - 1;
rgb = src->color_table[src_val];
rgb = colortable_entry( src, *src_pixel >> 4 );
dst_val = colorref_to_pixel_colortable(dst, RGB(rgb.rgbRed, rgb.rgbGreen, rgb.rgbBlue));
if((x - src_rect->left) & 1)
{
@ -3146,10 +3118,7 @@ static BOOL convert_to_1(dib_info *dst, const dib_info *src, const RECT *src_rec
src_pixel = src_start;
for(x = src_rect->left, bit_pos = 0; x < src_rect->right; x++)
{
RGBQUAD rgb;
src_val = *src_pixel++;
if(src_val >= src->color_table_size) src_val = src->color_table_size - 1;
rgb = src->color_table[src_val];
RGBQUAD rgb = colortable_entry( src, *src_pixel++ );
dst_val = colorref_to_pixel_colortable(dst, RGB(rgb.rgbRed, rgb.rgbGreen, rgb.rgbBlue)) ? 0xff : 0;
if(bit_pos == 0) *dst_pixel = 0;
@ -3184,11 +3153,9 @@ static BOOL convert_to_1(dib_info *dst, const dib_info *src, const RECT *src_rec
{
RGBQUAD rgb;
if(x & 1)
src_val = *src_pixel++ & 0xf;
rgb = colortable_entry( src, *src_pixel++ & 0xf );
else
src_val = (*src_pixel >> 4) & 0xf;
if(src_val >= src->color_table_size) src_val = src->color_table_size - 1;
rgb = src->color_table[src_val];
rgb = colortable_entry( src, *src_pixel >> 4 );
dst_val = colorref_to_pixel_colortable(dst, RGB(rgb.rgbRed, rgb.rgbGreen, rgb.rgbBlue)) ? 0xff : 0;
if(bit_pos == 0) *dst_pixel = 0;