o cleanup

tools/bsnes/ppu/bppu/bppu_render.cpp

@@ -0,0 +1,150 @@
+#ifdef BPPU_CPP
+
+#include "bppu_render_cache.cpp"
+#include "bppu_render_windows.cpp"
+#include "bppu_render_bg.cpp"
+#include "bppu_render_oam.cpp"
+#include "bppu_render_mode7.cpp"
+#include "bppu_render_addsub.cpp"
+#include "bppu_render_line.cpp"
+
+//this function can be used to disable BG / OAM layer rendering (currently unused)
+bool bPPU::render_enabled(uint8 bg, uint8 pri) {
+  return true;
+}
+
+/*
+Mode 0: ->
+     1,    2,    3,    4,    5,    6,    7,    8,    9,   10,   11,   12
+  BG4B, BG3B, OAM0, BG4A, BG3A, OAM1, BG2B, BG1B, OAM2, BG2A, BG1A, OAM3
+*/
+void bPPU::render_line_mode0() {
+  render_line_bg(BG1, COLORDEPTH_4, 8, 11);
+  render_line_bg(BG2, COLORDEPTH_4, 7, 10);
+  render_line_bg(BG3, COLORDEPTH_4, 2,  5);
+  render_line_bg(BG4, COLORDEPTH_4, 1,  4);
+  render_line_oam(3, 6, 9, 12);
+}
+
+/*
+Mode 1 (pri=1): ->
+     1,    2,    3,    4,    5,    6,    7,    8,    9,   10
+  BG3B, OAM0, OAM1, BG2B, BG1B, OAM2, BG2A, BG1A, OAM3, BG3A
+
+Mode 1 (pri=0): ->
+     1,    2,    3,    4,    5,    6,    7,    8,    9,   10
+  BG3B, OAM0, BG3A, OAM1, BG2B, BG1B, OAM2, BG2A, BG1A, OAM3
+*/
+void bPPU::render_line_mode1() {
+  if(regs.bg3_priority) {
+    render_line_bg(BG1, COLORDEPTH_16, 5,  8);
+    render_line_bg(BG2, COLORDEPTH_16, 4,  7);
+    render_line_bg(BG3, COLORDEPTH_4,  1, 10);
+    render_line_oam(2, 3, 6, 9);
+  } else {
+    render_line_bg(BG1, COLORDEPTH_16, 6,  9);
+    render_line_bg(BG2, COLORDEPTH_16, 5,  8);
+    render_line_bg(BG3, COLORDEPTH_4,  1,  3);
+    render_line_oam(2, 4, 7, 10);
+  }
+}
+
+/*
+Mode 2: ->
+     1,    2,    3,    4,    5,    6,    7,    8
+  BG2B, OAM0, BG1B, OAM1, BG2A, OAM2, BG1A, OAM3
+*/
+void bPPU::render_line_mode2() {
+  render_line_bg(BG1, COLORDEPTH_16, 3, 7);
+  render_line_bg(BG2, COLORDEPTH_16, 1, 5);
+  render_line_oam(2, 4, 6, 8);
+}
+
+/*
+Mode 3: ->
+     1,    2,    3,    4,    5,    6,    7,    8
+  BG2B, OAM0, BG1B, OAM1, BG2A, OAM2, BG1A, OAM3
+*/
+void bPPU::render_line_mode3() {
+  render_line_bg(BG1, COLORDEPTH_256, 3, 7);
+  render_line_bg(BG2, COLORDEPTH_16,  1, 5);
+  render_line_oam(2, 4, 6, 8);
+}
+
+/*
+Mode 4: ->
+     1,    2,    3,    4,    5,    6,    7,    8
+  BG2B, OAM0, BG1B, OAM1, BG2A, OAM2, BG1A, OAM3
+*/
+void bPPU::render_line_mode4() {
+  render_line_bg(BG1, COLORDEPTH_256, 3, 7);
+  render_line_bg(BG2, COLORDEPTH_4,   1, 5);
+  render_line_oam(2, 4, 6, 8);
+}
+
+/*
+Mode 5: ->
+     1,    2,    3,    4,    5,    6,    7,    8
+  BG2B, OAM0, BG1B, OAM1, BG2A, OAM2, BG1A, OAM3
+*/
+void bPPU::render_line_mode5() {
+  render_line_bg(BG1, COLORDEPTH_16, 3, 7);
+  render_line_bg(BG2, COLORDEPTH_4,  1, 5);
+  render_line_oam(2, 4, 6, 8);
+}
+
+/*
+Mode 6: ->
+     1,    2,    3,    4,    5,    6
+  OAM0, BG1B, OAM1, OAM2, BG1A, OAM3
+*/
+void bPPU::render_line_mode6() {
+  render_line_bg(BG1, COLORDEPTH_16, 2, 5);
+  render_line_oam(1, 3, 4, 6);
+}
+
+/*
+Mode7: ->
+     1,    2,    3,    4,    5
+  OAM0, BG1n, OAM1, OAM2, OAM3
+
+Mode 7 EXTBG: ->
+     1,    2,    3,    4,    5,    6,    7
+  BG2B, OAM0, BG1n, OAM1, BG2A, OAM2, OAM3
+*/
+void bPPU::render_line_mode7() {
+  if(regs.mode7_extbg == false) {
+    render_line_mode7(BG1, 2, 2);
+    render_line_oam(1, 3, 4, 5);
+  } else {
+    render_line_mode7(BG1, 3, 3);
+    render_line_mode7(BG2, 1, 5);
+    render_line_oam(2, 4, 6, 7);
+  }
+}
+
+void bPPU::render_line() {
+  if(regs.display_disabled == true) {
+    render_line_clear();
+    return;
+  }
+
+  flush_pixel_cache();
+  build_window_tables(COL);
+  update_bg_info();
+
+  switch(regs.bg_mode) {
+    case 0: render_line_mode0(); break;
+    case 1: render_line_mode1(); break;
+    case 2: render_line_mode2(); break;
+    case 3: render_line_mode3(); break;
+    case 4: render_line_mode4(); break;
+    case 5: render_line_mode5(); break;
+    case 6: render_line_mode6(); break;
+    case 7: render_line_mode7(); break;
+  }
+
+  render_line_output();
+}
+
+#endif  //ifdef BPPU_CPP