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improve blitter performance

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This commit is contained in:
FunkyFr3sh 2022-09-13 13:41:46 +02:00
parent 5ad539bbb4
commit 4cacc350c9
1 changed files with 32 additions and 21 deletions
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53
src/blt.c
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@ -24,12 +24,19 @@ void blt_clean(
src += (src_x * bytes_pp) + (src_p * src_y);
dst += (dst_x * bytes_pp) + (dst_p * dst_y);
for (int i = 0; i < dst_h; i++)
if (size == dst_p && dst_p == src_p)
{
memcpy(dst, src, size);
memcpy(dst, src, dst_p * dst_h);
}
else
{
for (int i = 0; i < dst_h; i++)
{
memcpy(dst, src, size);
src += src_p;
dst += dst_p;
src += src_p;
dst += dst_p;
}
}
}
@ -66,6 +73,10 @@ void blt_overlap(
memmove(dst, src, size);
}
}
else if (size == dst_p && dst_p == src_p)
{
memmove(dst, src, dst_p * dst_h);
}
else
{
for (int i = 0; i < dst_h; i++)
@ -108,9 +119,9 @@ void blt_colorkey(
if (key_l == key_h)
{
for (int y = 0; y < dst_h; y++)
for (void* h_end = dst + dst_h * (dst_w + d_a); dst < h_end;)
{
for (int x = 0; x < dst_w; x++)
for (void* w_end = dst + dst_w; dst < w_end;)
{
unsigned char c = *src++;
@ -121,16 +132,16 @@ void blt_colorkey(
dst++;
}
src += s_a;
dst += d_a;
}
}
else
{
for (int y = 0; y < dst_h; y++)
for (void* h_end = dst + dst_h * (dst_w + d_a); dst < h_end;)
{
for (int x = 0; x < dst_w; x++)
for (void* w_end = dst + dst_w; dst < w_end;)
{
unsigned char c = *src++;
@ -157,9 +168,9 @@ void blt_colorkey(
if (key_l == key_h)
{
for (int y = 0; y < dst_h; y++)
for (void* h_end = d + dst_h * (dst_w + d_a); d < h_end;)
{
for (int x = 0; x < dst_w; x++)
for (void* w_end = d + dst_w; d < w_end;)
{
unsigned short c = *s++;
@ -177,9 +188,9 @@ void blt_colorkey(
}
else
{
for (int y = 0; y < dst_h; y++)
for (void* h_end = d + dst_h * (dst_w + d_a); d < h_end;)
{
for (int x = 0; x < dst_w; x++)
for (void* w_end = d + dst_w; d < w_end;)
{
unsigned short c = *s++;
@ -206,9 +217,9 @@ void blt_colorkey(
if (key_l == key_h)
{
for (int y = 0; y < dst_h; y++)
for (void* h_end = d + dst_h * (dst_w + d_a); d < h_end;)
{
for (int x = 0; x < dst_w; x++)
for (void* w_end = d + dst_w; d < w_end;)
{
unsigned int c = *s++;
@ -226,9 +237,9 @@ void blt_colorkey(
}
else
{
for (int y = 0; y < dst_h; y++)
for (void* h_end = d + dst_h * (dst_w + d_a); d < h_end;)
{
for (int x = 0; x < dst_w; x++)
for (void* w_end = d + dst_w; d < w_end;)
{
unsigned int c = *s++;
@ -456,9 +467,9 @@ void blt_rgb565_to_rgba8888(
src += (src_x * sizeof(src[0])) + (src_p * src_y);
dst += (dst_x * sizeof(dst[0])) + (dst_p * dst_y);
for (int y = 0; y < dst_h; y++)
for (void* h_end = dst + dst_h * (dst_w + d_a); dst < h_end;)
{
for (int x = 0; x < dst_w; x++)
for (void* w_end = dst + dst_w; dst < w_end;)
{
unsigned short pixel = *src++;
@ -492,9 +503,9 @@ void blt_bgra8888_to_rgba8888(
src += (src_x * sizeof(src[0])) + (src_p * src_y);
dst += (dst_x * sizeof(dst[0])) + (dst_p * dst_y);
for (int y = 0; y < dst_h; y++)
for (void* h_end = dst + dst_h * (dst_w + d_a); dst < h_end;)
{
for (int x = 0; x < dst_w; x++)
for (void* w_end = dst + dst_w; dst < w_end;)
{
unsigned int pixel = *src++;