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Diffstat (limited to 'backends/platform/ds/arm9/source/blitters.cpp')
-rw-r--r--backends/platform/ds/arm9/source/blitters.cpp108
1 files changed, 54 insertions, 54 deletions
diff --git a/backends/platform/ds/arm9/source/blitters.cpp b/backends/platform/ds/arm9/source/blitters.cpp
index 582e15eb13..07c6b3fee1 100644
--- a/backends/platform/ds/arm9/source/blitters.cpp
+++ b/backends/platform/ds/arm9/source/blitters.cpp
@@ -27,25 +27,25 @@
namespace DS {
-void asmDrawStripToScreen(int height, int width, byte const* text, byte const* src, byte* dst,
+void asmDrawStripToScreen(int height, int width, byte const* text, byte const* src, byte* dst,
int vsPitch, int vmScreenWidth, int textSurfacePitch) {
if (height <= 0) height = 1;
if (width < 4) return;
-
-
+
+
width &= ~4;
// src = (const byte *) (((int) (src)) & (~4));
// dst = (byte *) (((int) (dst)) & (~4));
// text = (const byte *) (((int) (text)) & (~4));
-
+
asm ( "mov r5, %0\n" // Height
- "yLoop:\n"
+ "yLoop:\n"
"mov r3, #0\n" // X pos
-
+
"xLoop:\n"
-
+
"ldr r4, [%2, r3]\n" // Load text layer word
"cmp r4, %5\n"
"bne singleByteCompare\n"
@@ -54,7 +54,7 @@ void asmDrawStripToScreen(int height, int width, byte const* text, byte const* s
"add r3, r3, #4\n"
"cmp r3, %1\n" // x == width?
"blt xLoop\n"
-
+
"add %2, %2, %8\n" // src += vs->pitch
"add %3, %3, %6\n" // dst += _vm->_screenWidth
"add %4, %4, %7\n" // text += _textSurface.pitch
@@ -62,8 +62,8 @@ void asmDrawStripToScreen(int height, int width, byte const* text, byte const* s
"cmp r5, #0\n" // y == 0?
"bne yLoop\n"
"b end\n"
-
-
+
+
"singleByteCompare:\n"
"ldrb r4, [%2, r3]\n" // Load text byte
"cmps r4, %5, lsr #24\n" // Compare with mask
@@ -78,7 +78,7 @@ void asmDrawStripToScreen(int height, int width, byte const* text, byte const* s
"ldreqb r4, [%3, r3]\n" // Otherwise Load src byte
"streqb r4, [%4, r3]\n" // Store it
"add r3, r3, #1\n"
-
+
"ldrb r4, [%2, r3]\n" // Load text byte
"cmps r4, %5, lsr #24\n" // Compare with mask
"strneb r4, [%4, r3]\n" // Store if not equal
@@ -91,7 +91,7 @@ void asmDrawStripToScreen(int height, int width, byte const* text, byte const* s
"strneb r4, [%4, r3]\n" // Store if not equal
"ldreqb r4, [%3, r3]\n" // Otherwise Load src byte
"streqb r4, [%4, r3]\n" // Store it
- "add r3, r3, #1\n"
+ "add r3, r3, #1\n"
"cmps r3, %1\n" // x == width?
"blt xLoop\n" // Repeat
@@ -101,10 +101,10 @@ void asmDrawStripToScreen(int height, int width, byte const* text, byte const* s
"sub r5, r5, #1\n" // y -= 1
"cmp r5, #0\n" // y == 0?
"bne yLoop\n"
-
+
"end:\n"
: /* no output registers */
- : "r" (height), "r" (width), "r" (text), "r" (src), "r" (dst), "r" (CHARSET_MASK_TRANSPARENCY | (CHARSET_MASK_TRANSPARENCY << 8) | (CHARSET_MASK_TRANSPARENCY << 16) | (CHARSET_MASK_TRANSPARENCY << 24)),
+ : "r" (height), "r" (width), "r" (text), "r" (src), "r" (dst), "r" (CHARSET_MASK_TRANSPARENCY | (CHARSET_MASK_TRANSPARENCY << 8) | (CHARSET_MASK_TRANSPARENCY << 16) | (CHARSET_MASK_TRANSPARENCY << 24)),
"r" (vsPitch), "r" (vmScreenWidth), "r" (textSurfacePitch)
: "r5", "r3", "r4", "%2", "%3", "%4", "memory");
}
@@ -115,7 +115,7 @@ void asmCopy8Col(byte* dst, int dstPitch, const byte* src, int height) {
asm("ands r0, %3, #1\n"
"addne %3, %3, #1\n"
"bne roll2\n"
-
+
"yLoop2:\n"
"ldr r0, [%2, #0]\n"
"str r0, [%0, #0]\n"
@@ -131,7 +131,7 @@ void asmCopy8Col(byte* dst, int dstPitch, const byte* src, int height) {
"add %0, %0, %1\n"
"add %2, %2, %1\n"
"subs %3, %3, #2\n"
- "bne yLoop2\n"
+ "bne yLoop2\n"
: /* no output registers */
: "r" (dst), "r" (dstPitch), "r" (src), "r" (height)
@@ -150,7 +150,7 @@ void ComputeDivBy5TableIFN()
for (int i=0; i<160; ++i)
{
DIV_BY_5[i] = (2*i+5)/10;
- }
+ }
}
#ifdef PERFECT_5_TO_4_RESCALING
@@ -163,13 +163,13 @@ static inline void RescaleBlock_5x1555_To_4x1555( u16 s0, u16 s1, u16 s2, u16 s3
u32 bs3 = s3 & 0x1F;
u32 bs4 = s4 & 0x1F;
-#if 0
+#if 0
u32 gs0 = (s0 >> 5) & 0x1F;
u32 gs1 = (s1 >> 5) & 0x1F;
u32 gs2 = (s2 >> 5) & 0x1F;
u32 gs3 = (s3 >> 5) & 0x1F;
u32 gs4 = (s4 >> 5) & 0x1F;
-
+
u32 rs0 = (s0 >> 10) & 0x1F;
u32 rs1 = (s1 >> 10) & 0x1F;
u32 rs2 = (s2 >> 10) & 0x1F;
@@ -191,22 +191,22 @@ static inline void RescaleBlock_5x1555_To_4x1555( u16 s0, u16 s1, u16 s2, u16 s3
asm("and %0, %2, %1, lsr #10" : "=r"(rs3) : "r"(s3), "r"(mask) : );
asm("and %0, %2, %1, lsr #10" : "=r"(rs4) : "r"(s4), "r"(mask) : );
#endif
-
+
u32 rd0 = 4*rs0 + rs1;
u32 rd1 = 2*rs1 + rs1 + 2*rs2;
u32 rd2 = 2*rs2 + 2*rs3 + rs3;
u32 rd3 = rs3 + 4*rs4;
-
+
u32 gd0 = 4*gs0 + gs1;
u32 gd1 = 2*gs1 + gs1 + 2*gs2;
u32 gd2 = 2*gs2 + 2*gs3 + gs3;
u32 gd3 = gs3 + 4*gs4;
-
+
u32 bd0 = 4*bs0 + bs1;
u32 bd1 = 2*bs1 + bs1 + 2*bs2;
u32 bd2 = 2*bs2 + 2*bs3 + bs3;
u32 bd3 = bs3 + 4*bs4;
-
+
#if 0
// Offsetting for correct rounding
rd0 = rd0*2+5; rd1 = rd1*2+5; rd2 = rd2*2+5; rd3 = rd3*2+5;
@@ -217,14 +217,14 @@ static inline void RescaleBlock_5x1555_To_4x1555( u16 s0, u16 s1, u16 s2, u16 s3
gd0 = (gd0 * 51) >> 9; gd1 = (gd1 * 51) >> 9; gd2 = (gd2 * 51) >> 9; gd3 = (gd3 * 51) >> 9;
bd0 = (bd0 * 51) >> 9; bd1 = (bd1 * 51) >> 9; bd2 = (bd2 * 51) >> 9; bd3 = (bd3 * 51) >> 9;
#else
- rd0 = DIV_BY_5[rd0]; rd1 = DIV_BY_5[rd1]; rd2 = DIV_BY_5[rd2]; rd3 = DIV_BY_5[rd3];
- gd0 = DIV_BY_5[gd0]; gd1 = DIV_BY_5[gd1]; gd2 = DIV_BY_5[gd2]; gd3 = DIV_BY_5[gd3];
- bd0 = DIV_BY_5[bd0]; bd1 = DIV_BY_5[bd1]; bd2 = DIV_BY_5[bd2]; bd3 = DIV_BY_5[bd3];
+ rd0 = DIV_BY_5[rd0]; rd1 = DIV_BY_5[rd1]; rd2 = DIV_BY_5[rd2]; rd3 = DIV_BY_5[rd3];
+ gd0 = DIV_BY_5[gd0]; gd1 = DIV_BY_5[gd1]; gd2 = DIV_BY_5[gd2]; gd3 = DIV_BY_5[gd3];
+ bd0 = DIV_BY_5[bd0]; bd1 = DIV_BY_5[bd1]; bd2 = DIV_BY_5[bd2]; bd3 = DIV_BY_5[bd3];
#endif
-
+
u32 d10 = 0x80008000 | (rd1 << 26) | (gd1 << 21) | (bd1 << 16) | (rd0 << 10) | (gd0 << 5) | bd0;
u32 d32 = 0x80008000 | (rd3 << 26) | (gd3 << 21) | (bd3 << 16) | (rd2 << 10) | (gd2 << 5) | bd2;
-
+
((u32*)dest)[0] = d10;
((u32*)dest)[1] = d32;
}
@@ -233,7 +233,7 @@ static inline void RescaleBlock_5x1555_To_4x1555( u16 s0, u16 s1, u16 s2, u16 s3
u16* dest)
{
static const u32 MASK = 0x03E07C1F;
-
+
u32 argbargbs0 = u32(s0) | (u32(s0) << 16);
u32 argbargbs1 = u32(s1) | (u32(s1) << 16);
u32 argbargbs2 = u32(s2) | (u32(s2) << 16);
@@ -245,32 +245,32 @@ static inline void RescaleBlock_5x1555_To_4x1555( u16 s0, u16 s1, u16 s2, u16 s3
u32 grbs2 = argbargbs2 & MASK;
u32 grbs3 = argbargbs3 & MASK;
u32 grbs4 = argbargbs4 & MASK;
-
+
u32 grbd0 = (3*grbs0 + grbs1) >> 2;
u32 grbd1 = ( grbs1 + grbs2) >> 1;
u32 grbd2 = ( grbs2 + grbs3) >> 1;
u32 grbd3 = ( grbs3 + 3*grbs4) >> 2;
-
+
grbd0 &= MASK;
grbd1 &= MASK;
grbd2 &= MASK;
grbd3 &= MASK;
-
+
u32 d0 = grbd0 | (grbd0 >> 16);
u32 d1 = grbd1 | (grbd1 >> 16);
u32 d2 = grbd2 | (grbd2 >> 16);
u32 d3 = grbd3 | (grbd3 >> 16);
-
- d0 &= 0xFFFF;
- d1 &= 0xFFFF;
- d2 &= 0xFFFF;
- d3 &= 0xFFFF;
-
- d0 |= 0x8000;
- d1 |= 0x8000;
- d2 |= 0x8000;
- d3 |= 0x8000;
-
+
+ d0 &= 0xFFFF;
+ d1 &= 0xFFFF;
+ d2 &= 0xFFFF;
+ d3 &= 0xFFFF;
+
+ d0 |= 0x8000;
+ d1 |= 0x8000;
+ d2 |= 0x8000;
+ d3 |= 0x8000;
+
dest[0] = d0;
dest[1] = d1;
dest[2] = d2;
@@ -287,13 +287,13 @@ static inline void RescaleBlock_5x8888_To_4x1555( u32 s0, u32 s1, u32 s2, u32 s3
u32 bd0 = (d0 << 24) >> 24;
u32 bd1 = (d1 << 24) >> 24;
u32 gd0 = (d0 << 16) >> 24;
- u32 gd1 = (d1 << 16) >> 24;
+ u32 gd1 = (d1 << 16) >> 24;
u32 rd0 = (d0 >> 16);
u32 rd1 = (d1 >> 16);
-
+
rd0 = DIV_BY_5[rd0]; rd1 = DIV_BY_5[rd1];
gd0 = DIV_BY_5[gd0]; gd1 = DIV_BY_5[gd1];
- bd0 = DIV_BY_5[bd0]; bd1 = DIV_BY_5[bd1];
+ bd0 = DIV_BY_5[bd0]; bd1 = DIV_BY_5[bd1];
u32 d10 = 0x80008000 | (rd1 << 26) | (gd1 << 21) | (bd1 << 16) | (rd0 << 10) | (gd0 << 5) | bd0;
((u32*)dest)[0] = d10;
@@ -307,11 +307,11 @@ static inline void RescaleBlock_5x8888_To_4x1555( u32 s0, u32 s1, u32 s2, u32 s3
u32 rd2 = (d2 >> 16);
u32 rd3 = (d3 >> 16);
- rd2 = DIV_BY_5[rd2]; rd3 = DIV_BY_5[rd3];
- gd2 = DIV_BY_5[gd2]; gd3 = DIV_BY_5[gd3];
- bd2 = DIV_BY_5[bd2]; bd3 = DIV_BY_5[bd3];
+ rd2 = DIV_BY_5[rd2]; rd3 = DIV_BY_5[rd3];
+ gd2 = DIV_BY_5[gd2]; gd3 = DIV_BY_5[gd3];
+ bd2 = DIV_BY_5[bd2]; bd3 = DIV_BY_5[bd3];
u32 d32 = 0x80008000 | (rd3 << 26) | (gd3 << 21) | (bd3 << 16) | (rd2 << 10) | (gd2 << 5) | bd2;
-
+
((u32*)dest)[1] = d32;
}
@@ -320,7 +320,7 @@ static inline void RescaleBlock_5x8888_To_4x1555( u32 s0, u32 s1, u32 s2, u32 s3
static inline void Rescale_320xPAL8Scanline_To_256x1555Scanline(u16* dest, const u8* src, const u32* palette)
{
ComputeDivBy5TableIFN();
-
+
for (size_t i=0; i<64; ++i)
{
u32 s0 = palette[src[5*i+0]];
@@ -353,7 +353,7 @@ static inline void Rescale_320xPAL8Scanline_To_256x1555Scanline(u16* dest, const
static inline void Rescale_320x1555Scanline_To_256x1555Scanline(u16* dest, const u16* src)
{
ComputeDivBy5TableIFN();
-
+
for (size_t i=0; i<64; ++i)
{
u16 s0 = src[5*i+0];
@@ -384,7 +384,7 @@ void Rescale_320x256xPAL8_To_256x256x1555(u16* dest, const u8* src, int destStri
for (size_t i=0; i<200; ++i)
{
- Rescale_320xPAL8Scanline_To_256x1555Scanline(dest + i*destStride, src + i *srcStride, fastRam);
+ Rescale_320xPAL8Scanline_To_256x1555Scanline(dest + i*destStride, src + i *srcStride, fastRam);
}
}
#else
@@ -396,7 +396,7 @@ void Rescale_320x256xPAL8_To_256x256x1555(u16* dest, const u8* src, int destStri
for (size_t i=0; i<200; ++i)
{
- Rescale_320xPAL8Scanline_To_256x1555Scanline(dest + i*destStride, src + i *srcStride, fastRam);
+ Rescale_320xPAL8Scanline_To_256x1555Scanline(dest + i*destStride, src + i *srcStride, fastRam);
}
}
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 02:33:32 +0000