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(svn r23670) -Feature: Add ability to adjust brightness of colour after remapping for 32bpp sprites

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This commit is contained in:
peter1138
2011-12-24 23:33:45 +00:00
parent dc497258d6
commit 3ef77e55c5
7 changed files with 130 additions and 69 deletions
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37
src/blitter/32bpp_optimized.cpp
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@@ -36,12 +36,12 @@ inline void Blitter_32bppOptimized::Draw(const Blitter::BlitterParams *bp, ZoomL
/* src_n : each line begins with uint32 n = 'number of bytes in this line',
* then interleaved stream of 'm' and 'n' channels. 'm' is remap,
* 'n' is number of bytes with the same alpha channel class */
const uint8 *src_n = (const uint8 *)(src->data + src->offset[zoom][1]);
const uint16 *src_n = (const uint16 *)(src->data + src->offset[zoom][1]);
/* skip upper lines in src_px and src_n */
for (uint i = bp->skip_top; i != 0; i--) {
src_px = (const Colour *)((const byte *)src_px + *(const uint32 *)src_px);
src_n += *(const uint32 *)src_n;
src_n = (const uint16 *)((const byte *)src_n + *(const uint32 *)src_n);
}
/* skip lines in dst */
@@ -59,8 +59,8 @@ inline void Blitter_32bppOptimized::Draw(const Blitter::BlitterParams *bp, ZoomL
src_px++;
/* next src_n line begins here */
const uint8 *src_n_ln = src_n + *(const uint32 *)src_n;
src_n += 4;
const uint16 *src_n_ln = (const uint16 *)((const byte *)src_n + *(const uint32 *)src_n);
src_n += 2;
/* we will end this line when we reach this point */
uint32 *dst_end = dst + bp->skip_left;
@@ -119,8 +119,8 @@ inline void Blitter_32bppOptimized::Draw(const Blitter::BlitterParams *bp, ZoomL
if (m == 0) {
*dst = src_px->data;
} else {
uint r = remap[m];
if (r != 0) *dst = this->LookupColourInPalette(r);
uint r = remap[GB(m, 0, 8)];
if (r != 0) *dst = this->AdjustBrightness(this->LookupColourInPalette(r), GB(m, 8, 8));
}
dst++;
src_px++;
@@ -132,8 +132,8 @@ inline void Blitter_32bppOptimized::Draw(const Blitter::BlitterParams *bp, ZoomL
if (m == 0) {
*dst = ComposeColourRGBANoCheck(src_px->r, src_px->g, src_px->b, src_px->a, *dst);
} else {
uint r = remap[m];
if (r != 0) *dst = ComposeColourPANoCheck(this->LookupColourInPalette(r), src_px->a, *dst);
uint r = remap[GB(m, 0, 8)];
if (r != 0) *dst = ComposeColourPANoCheck(this->AdjustBrightness(this->LookupColourInPalette(r), GB(m, 8, 8)), src_px->a, *dst);
}
dst++;
src_px++;
@@ -270,7 +270,7 @@ Sprite *Blitter_32bppOptimized::Encode(SpriteLoader::Sprite *sprite, AllocatorPr
*
* it has to be stored in one stream so fewer registers are used -
* x86 has problems with register allocation even with this solution */
uint8 *dst_n_orig[ZOOM_LVL_COUNT];
uint16 *dst_n_orig[ZOOM_LVL_COUNT];
/* lengths of streams */
uint32 lengths[ZOOM_LVL_COUNT][2];
@@ -293,7 +293,7 @@ Sprite *Blitter_32bppOptimized::Encode(SpriteLoader::Sprite *sprite, AllocatorPr
uint size = src_orig->height * src_orig->width;
dst_px_orig[z] = CallocT<Colour>(size + src_orig->height * 2);
dst_n_orig[z] = CallocT<uint8>(size * 2 + src_orig->height * 4 * 2);
dst_n_orig[z] = CallocT<uint16>(size * 2 + src_orig->height * 4 * 2);
uint32 *dst_px_ln = (uint32 *)dst_px_orig[z];
uint32 *dst_n_ln = (uint32 *)dst_n_orig[z];
@@ -302,9 +302,9 @@ Sprite *Blitter_32bppOptimized::Encode(SpriteLoader::Sprite *sprite, AllocatorPr
for (uint y = src_orig->height; y > 0; y--) {
Colour *dst_px = (Colour *)(dst_px_ln + 1);
uint8 *dst_n = (uint8 *)(dst_n_ln + 1);
uint16 *dst_n = (uint16 *)(dst_n_ln + 1);
uint8 *dst_len = dst_n++;
uint16 *dst_len = dst_n++;
uint last = 3;
int len = 0;
@@ -313,7 +313,7 @@ Sprite *Blitter_32bppOptimized::Encode(SpriteLoader::Sprite *sprite, AllocatorPr
uint8 a = src->a;
uint t = a > 0 && a < 255 ? 1 : a;
if (last != t || len == 255) {
if (last != t || len == 65535) {
if (last != 3) {
*dst_len = len;
dst_len = dst_n++;
@@ -328,8 +328,15 @@ Sprite *Blitter_32bppOptimized::Encode(SpriteLoader::Sprite *sprite, AllocatorPr
dst_px->a = a;
*dst_n = src->m;
if (src->m != 0) {
/* Get brightest value */
uint8 rgb_max = max(src->r, max(src->g, src->b));
/* Black pixel (8bpp or old 32bpp image), so use default value */
if (rgb_max == 0) rgb_max = DEFAULT_BRIGHTNESS;
*dst_n |= rgb_max << 8;
/* Pre-convert the mapping channel to a RGB value */
uint32 colour = this->LookupColourInPalette(src->m);
uint32 colour = this->AdjustBrightness(this->LookupColourInPalette(src->m), rgb_max);
dst_px->r = GB(colour, 16, 8);
dst_px->g = GB(colour, 8, 8);
dst_px->b = GB(colour, 0, 8);
@@ -354,7 +361,7 @@ Sprite *Blitter_32bppOptimized::Encode(SpriteLoader::Sprite *sprite, AllocatorPr
}
dst_px = (Colour *)AlignPtr(dst_px, 4);
dst_n = (uint8 *)AlignPtr(dst_n, 4);
dst_n = (uint16 *)AlignPtr(dst_n, 4);
*dst_px_ln = (uint8 *)dst_px - (uint8 *)dst_px_ln;
*dst_n_ln = (uint8 *)dst_n - (uint8 *)dst_n_ln;