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-rw-r--r--src/tile16f_t.h340
1 files changed, 340 insertions, 0 deletions
diff --git a/src/tile16f_t.h b/src/tile16f_t.h
new file mode 100644
index 0000000..70b5cff
--- /dev/null
+++ b/src/tile16f_t.h
@@ -0,0 +1,340 @@
+/*
+ Templates for
+
+ DrawTile16
+ DrawClippedTile16
+*/
+
+#include "snes9x.h"
+#include "memmap.h"
+#include "ppu.h"
+#include "display.h"
+#include "gfx.h"
+#include "tile16.h"
+
+#define ROW(width) \
+ " ldrb r8, [%[depth]], #1 \n"\
+ " mov r10, " width " \n" \
+ "7:\n" \
+ \
+ " cmp %[gfx_z1], r8 \n"\
+ " ldrhib r9, [%[bp]] \n"\
+ " bls 3f \n"\
+ \
+ " movs r9, r9, lsl #2 \n"\
+ " beq 3f \n"\
+ \
+ " ldrb r8, [%[subdepth], %[depth]] \n"\
+ " ldr r9, [%[colors], r9] \n"\
+ " strb %[gfx_z2], [%[depth], #(-1)] \n"\
+ \
+ " cmp r8, #1 \n"\
+ " bne 4f \n"\
+ \
+ ROP \
+ "4: \n"\
+ " strh r9, [%[screen]] \n"\
+ \
+ "3: \n"\
+ \
+ " add %[bp], %[bp], #1 \n"\
+ " add %[screen], %[screen], #2 \n"\
+ " subs r10, r10, #1 \n"\
+ " ldrneb r8, [%[depth]], #1 \n"\
+ " bne 7b \n"
+
+#define ROW1(width) \
+ " ldrb r8, [%[depth]], #1 \n"\
+ " mov r10, " width " \n" \
+ "7:\n" \
+ \
+ " cmp %[gfx_z1], r8 \n"\
+ " ldrhib r9, [%[bp]] \n"\
+ " bls 3f \n"\
+ \
+ " movs r9, r9, lsl #2 \n"\
+ " beq 3f \n"\
+ \
+ " ldrb r8, [%[subdepth], %[depth]] \n"\
+ " ldr r9, [%[colors], r9] \n"\
+ " strb %[gfx_z2], [%[depth], #(-1)] \n"\
+ \
+ " cmp r8, #1 \n"\
+ " bne 4f \n"\
+ \
+ ROP \
+ "4: \n"\
+ " strh r9, [%[screen]] \n"\
+ \
+ "3: \n"\
+ \
+ " sub %[bp], %[bp], #1 \n"\
+ " add %[screen], %[screen], #2 \n"\
+ " subs r10, r10, #1 \n"\
+ " ldrneb r8, [%[depth]], #1 \n"\
+ " bne 7b \n"
+
+
+#define MACRO_CONCAT(a,b) a##b
+#define DEC_DRAW(n) MACRO_CONCAT(void DrawTile16, n)(uint32 Tile, uint32 Offset, uint32 StartLine, uint32 LineCount)
+#define DEC_DRAWCLIPPED(n) MACRO_CONCAT(void DrawClippedTile16, n)(uint32 Tile, uint32 Offset, uint32 StartPixel, uint32 Width, uint32 StartLine, uint32 LineCount)
+
+
+// DrawTile16 -----------------------------------------
+DEC_DRAW(ROPNAME)
+{
+ TILE_PREAMBLE
+
+ if (Tile & V_FLIP){
+ if (!(Tile & H_FLIP)){
+ asm volatile (
+ "2: \n"
+
+ ROW("#8")
+
+ " sub %[bp], %[bp], #(8+8) \n"
+ " add %[screen], %[screen], #(640-16) \n"
+ " add %[depth], %[depth], #(320-8) \n"
+ " subs %[lcount], %[lcount], #1 \n"
+ " bne 2b"
+ // output
+ : [lcount] "+r" (LineCount)
+ // input
+ : [gfx_z1] "r" (GFX.Z1),
+ [gfx_z2] "r" (GFX.Z2),
+ [colors] "r" (GFX.ScreenColors),
+ [delta] "r" (GFX.Delta << 1),
+ [fixedcolour] "r" (FIXEDCOLOUR),
+ [screen] "r" ((uint16 *) GFX.S + Offset),
+ [depth] "r" (GFX.ZBuffer + Offset),
+ [subdepth] "r" (GFX.DepthDelta - 1),
+ [bp] "r" (pCache + 56 - StartLine)
+ // clobbered
+ : "r8", "r9", "r10", "cc"
+ );
+ } else {
+ asm volatile (
+ "2: \n"
+ ROW1("#8")
+
+ " add %[screen], %[screen], #(640-16) \n"
+ " add %[depth], %[depth], #(320-8) \n"
+ " subs %[lcount], %[lcount], #1 \n"
+ " bne 2b"
+ // output
+ : [lcount] "+r" (LineCount)
+ // input
+ : [gfx_z1] "r" (GFX.Z1),
+ [gfx_z2] "r" (GFX.Z2),
+ [colors] "r" (GFX.ScreenColors),
+ [delta] "r" (GFX.Delta << 1),
+ [fixedcolour] "r" (FIXEDCOLOUR),
+ [screen] "r" ((uint16 *) GFX.S + Offset),
+ [depth] "r" (GFX.ZBuffer + Offset),
+ [subdepth] "r" (GFX.DepthDelta - 1),
+ [bp] "r" (pCache + 56 - StartLine + 7)
+ // clobbered
+ : "r8", "r9", "r10", "cc"
+ );
+ }
+} else {
+ if (!(Tile & H_FLIP)){
+ asm volatile (
+ "2: \n"
+ ROW("#8")
+
+ " add %[screen], %[screen], #(640-16) \n"
+ " add %[depth], %[depth], #(320-8) \n"
+ " subs %[lcount], %[lcount], #1 \n"
+ " bne 2b"
+ // output
+ : [lcount] "+r" (LineCount)
+ // input
+ : [gfx_z1] "r" (GFX.Z1),
+ [gfx_z2] "r" (GFX.Z2),
+ [colors] "r" (GFX.ScreenColors),
+ [delta] "r" (GFX.Delta << 1),
+ [fixedcolour] "r" (FIXEDCOLOUR),
+ [screen] "r" ((uint16 *) GFX.S + Offset),
+ [depth] "r" (GFX.ZBuffer + Offset),
+ [subdepth] "r" (GFX.DepthDelta - 1),
+ [bp] "r" (pCache + StartLine)
+ // clobbered
+ : "r8", "r9", "r10", "cc"
+ );
+ } else {
+ asm volatile (
+ "2: \n"
+ ROW1("#8")
+
+ " add %[bp], %[bp], #(8+8) \n"
+ " add %[screen], %[screen], #(640-16) \n"
+ " add %[depth], %[depth], #(320-8) \n"
+ " subs %[lcount], %[lcount], #1 \n"
+ " bne 2b"
+
+ // output
+ : [lcount] "+r" (LineCount)
+ // input
+ : [gfx_z1] "r" (GFX.Z1),
+ [gfx_z2] "r" (GFX.Z2),
+ [colors] "r" (GFX.ScreenColors),
+ [delta] "r" (GFX.Delta << 1),
+ [fixedcolour] "r" (FIXEDCOLOUR),
+ [screen] "r" ((uint16 *) GFX.S + Offset),
+ [depth] "r" (GFX.ZBuffer + Offset),
+ [subdepth] "r" (GFX.DepthDelta - 1),
+ [bp] "r" (pCache + StartLine + 7)
+ // clobbered
+ : "r8", "r9", "r10", "cc"
+ );
+
+ }
+ }
+}
+
+// DrawClippedTile16 -----------------------------------------
+DEC_DRAWCLIPPED(ROPNAME)
+{
+if (Width == 0) return;
+
+ TILE_PREAMBLE
+
+Offset = Offset + StartPixel;
+if (Tile & V_FLIP){
+ if (!(Tile & H_FLIP)){
+ asm volatile (
+ "2: \n"
+
+ ROW("%[width]")
+
+ // Loop
+ "1: \n"
+ " sub %[bp], %[bp], #8 \n"
+ " add %[screen], %[screen], #640 \n"
+ " add %[depth], %[depth], #320 \n"
+ // --
+ " sub %[bp], %[bp], %[width] \n"
+ " sub %[screen], %[screen], %[width], lsl #1 \n"
+ " sub %[depth], %[depth], %[width] \n"
+ // --
+ " subs %[lcount], %[lcount], #1 \n"
+ " bne 2b"
+ // output
+ : [lcount] "+r" (LineCount)
+ // input
+ : [gfx_z1] "r" (GFX.Z1),
+ [gfx_z2] "r" (GFX.Z2),
+ [colors] "r" (GFX.ScreenColors),
+ [delta] "r" (GFX.Delta << 1),
+ [fixedcolour] "r" (FIXEDCOLOUR),
+ [width] "r" (Width),
+ [screen] "r" ((uint16 *) GFX.S + Offset),
+ [depth] "r" (GFX.ZBuffer + Offset),
+ [subdepth] "r" (GFX.DepthDelta - 1),
+ [bp] "r" (pCache + 56 - StartLine + StartPixel)
+ // clobbered
+ : "r8", "r9", "r10", "cc"
+ );
+ } else {
+ asm volatile (
+ "2: \n"
+ ROW1("%[width]")
+ // Loop
+ "1: \n"
+ " sub %[bp], %[bp], #8 \n"
+ " add %[screen], %[screen], #640 \n"
+ " add %[depth], %[depth], #320 \n"
+ // --
+ " add %[bp], %[bp], %[width] \n"
+ " sub %[screen], %[screen], %[width], lsl #1 \n"
+ " sub %[depth], %[depth], %[width] \n"
+ // --
+ " subs %[lcount], %[lcount], #1 \n"
+ " bne 2b"
+ // output
+ : [lcount] "+r" (LineCount)
+ // input
+ : [gfx_z1] "r" (GFX.Z1),
+ [gfx_z2] "r" (GFX.Z2),
+ [colors] "r" (GFX.ScreenColors),
+ [delta] "r" (GFX.Delta << 1),
+ [fixedcolour] "r" (FIXEDCOLOUR),
+ [width] "r" (Width),
+ [screen] "r" ((uint16 *) GFX.S + Offset),
+ [depth] "r" (GFX.ZBuffer + Offset),
+ [subdepth] "r" (GFX.DepthDelta - 1),
+ [bp] "r" (pCache + 56 - StartLine - StartPixel + 7)
+ // clobbered
+ : "r8", "r9", "r10", "cc"
+ );
+ }
+} else {
+ if (!(Tile & H_FLIP)){
+ asm volatile (
+ "2: \n"
+ ROW("%[width]")
+ // Loop
+ "1: \n"
+ " add %[bp], %[bp], #8 \n"
+ " add %[screen], %[screen], #640 \n"
+ " add %[depth], %[depth], #320 \n"
+ // --
+ " sub %[bp], %[bp], %[width] \n"
+ " sub %[screen], %[screen], %[width], lsl #1 \n"
+ " sub %[depth], %[depth], %[width] \n"
+ // --
+ " subs %[lcount], %[lcount], #1 \n"
+ " bne 2b"
+ // output
+ : [lcount] "+r" (LineCount)
+ // input
+ : [gfx_z1] "r" (GFX.Z1),
+ [gfx_z2] "r" (GFX.Z2),
+ [colors] "r" (GFX.ScreenColors),
+ [delta] "r" (GFX.Delta << 1),
+ [fixedcolour] "r" (FIXEDCOLOUR),
+ [width] "r" (Width),
+ [screen] "r" ((uint16 *) GFX.S + Offset),
+ [depth] "r" (GFX.ZBuffer + Offset),
+ [subdepth] "r" (GFX.DepthDelta - 1),
+ [bp] "r" (pCache + StartLine + StartPixel)
+ // clobbered
+ : "r8", "r9", "r10", "cc"
+ );
+ } else {
+ asm volatile (
+ "2: \n"
+ ROW1("%[width]")
+ // Loop
+ "1: \n"
+ " add %[bp], %[bp], #8 \n"
+ " add %[screen], %[screen], #640 \n"
+ " add %[depth], %[depth], #320 \n"
+ // --
+ " add %[bp], %[bp], %[width] \n"
+ " sub %[screen], %[screen], %[width], lsl #1 \n"
+ " sub %[depth], %[depth], %[width] \n"
+ // --
+ " subs %[lcount], %[lcount], #1 \n"
+ " bne 2b"
+ // output
+ : [lcount] "+r" (LineCount)
+ // input
+ : [gfx_z1] "r" (GFX.Z1),
+ [gfx_z2] "r" (GFX.Z2),
+ [colors] "r" (GFX.ScreenColors),
+ [delta] "r" (GFX.Delta << 1),
+ [fixedcolour] "r" (FIXEDCOLOUR),
+ [width] "r" (Width),
+ [screen] "r" ((uint16 *) GFX.S + Offset),
+ [depth] "r" (GFX.ZBuffer + Offset),
+ [subdepth] "r" (GFX.DepthDelta - 1),
+ [bp] "r" (pCache + StartLine - StartPixel + 7)
+ // clobbered
+ : "r8", "r9", "r10", "cc"
+ );
+
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-29 11:51:11 +0000