psx_gpu: add a tool to generate asm offsets
[pcsx_rearmed.git] / plugins / gpu_neon / psx_gpu / psx_gpu_arm_neon.S
index 973a8b3..79d5466 100644 (file)
 #define MAX_BLOCKS                                        64
 #define MAX_BLOCKS_PER_ROW                                128
 
-#define psx_gpu_test_mask_offset                          0
-#define psx_gpu_uvrg_offset                               16
-#define psx_gpu_uvrg_dx_offset                            32
-#define psx_gpu_uvrg_dy_offset                            48
-#define psx_gpu_u_block_span_offset                       64
-#define psx_gpu_v_block_span_offset                       80
-#define psx_gpu_r_block_span_offset                       96
-#define psx_gpu_g_block_span_offset                       112
-#define psx_gpu_b_block_span_offset                       128
-
-#define psx_gpu_b_dx_offset                               132
-
-#define psx_gpu_b_offset                                  144
-#define psx_gpu_b_dy_offset                               148
-#define psx_gpu_triangle_area_offset                      152
-#define psx_gpu_texture_window_settings_offset            156
-#define psx_gpu_current_texture_mask_offset               160
-#define psx_gpu_viewport_mask_offset                      164
-#define psx_gpu_dirty_textures_4bpp_mask_offset           168
-#define psx_gpu_dirty_textures_8bpp_mask_offset           172
-#define psx_gpu_dirty_textures_8bpp_alternate_mask_offset 176
-#define psx_gpu_triangle_color_offset                     180
-#define psx_gpu_dither_table_offset                       184
-#define psx_gpu_render_block_handler_offset               200
-#define psx_gpu_texture_page_ptr_offset                   204
-#define psx_gpu_texture_page_base_offset                  208
-#define psx_gpu_clut_ptr_offset                           212
-#define psx_gpu_vram_ptr_offset                           216
-
-#define psx_gpu_render_state_base_offset                  220
-#define psx_gpu_render_state_offset                       222
-#define psx_gpu_num_spans_offset                          224
-#define psx_gpu_num_blocks_offset                         226
-#define psx_gpu_offset_x_offset                           228
-#define psx_gpu_offset_y_offset                           230
-#define psx_gpu_clut_settings_offset                      232
-#define psx_gpu_texture_settings_offset                   234
-#define psx_gpu_viewport_start_x_offset                   236
-#define psx_gpu_viewport_start_y_offset                   238
-#define psx_gpu_viewport_end_x_offset                     240
-#define psx_gpu_viewport_end_y_offset                     242
-#define psx_gpu_mask_msb_offset                           244
-                                                          
-#define psx_gpu_triangle_winding_offset                   246
-#define psx_gpu_display_area_draw_enable_offset           247
-#define psx_gpu_current_texture_page_offset               248
-#define psx_gpu_last_8bpp_texture_page_offset             249
-#define psx_gpu_texture_mask_width_offset                 250
-#define psx_gpu_texture_mask_height_offset                251
-#define psx_gpu_texture_window_x_offset                   252
-#define psx_gpu_texture_window_y_offset                   253
-#define psx_gpu_primitive_type_offset                     254
-
-#define psx_gpu_reserved_a_offset                         255
-
-#define psx_gpu_blocks_offset                             0x0100
-#define psx_gpu_span_uvrg_offset_offset                   0x2100
-#define psx_gpu_span_edge_data_offset                     0x4100
-#define psx_gpu_span_b_offset_offset                      0x5100
+#include "psx_gpu_offsets.h"
+
+#define psx_gpu_b_dx_offset (psx_gpu_b_block_span_offset + 4)
 
 #define edge_data_left_x_offset                           0
 #define edge_data_num_blocks_offset                       2
 
 .align 4
 
+/* FIXME: users of this should be in psx_gpu instead */
+#ifndef __PIC__
+#define load_pointer(register, pointer)                                        \
+  movw register, :lower16:pointer;                                             \
+  movt register, :upper16:pointer;                                             \
+
+#else
+#define load_pointer(register, pointer)                                        \
+  ldr  register, =pointer                                                      \
+
+#endif
+
 #define function(name)                                                         \
   .global name;                                                                \
   name:                                                                        \
@@ -609,8 +565,7 @@ function(compute_all_gradients)
   vld1.32 { uvrg }, [ temp ];                                                  \
   add temp, psx_gpu, #psx_gpu_uvrg_dy_offset;                                  \
   vld1.32 { uvrg_dy }, [ temp ];                                               \
-  movw reciprocal_table_ptr, :lower16:reciprocal_table;                        \
-  movt reciprocal_table_ptr, :upper16:reciprocal_table;                        \
+  load_pointer(reciprocal_table_ptr, reciprocal_table);                        \
                                                                                \
   vmov.u32 c_0x01, #0x01                                                       \
 
@@ -646,7 +601,7 @@ function(compute_all_gradients)
                                                                                \
   vdup.u32 edge_shifts, temp;                                                  \
   vsub.u32 heights_b, heights, c_0x01;                                         \
-  vshr.u32 height_reciprocals, edge_shifts, #12;                               \
+  vshr.u32 height_reciprocals, edge_shifts, #10;                               \
                                                                                \
   vmla.s32 heights_b, x_starts, heights;                                       \
   vbic.u16 edge_shifts, #0xE0;                                                 \
@@ -671,8 +626,8 @@ function(compute_all_gradients)
   vsub.u32 heights_b, heights, c_0x01;                                         \
   sub height_b_alt, height_minor_b, #1;                                        \
                                                                                \
-  vshr.u32 height_reciprocals, edge_shifts, #12;                               \
-  lsr height_reciprocal_alt, edge_shift_alt, #12;                              \
+  vshr.u32 height_reciprocals, edge_shifts, #10;                               \
+  lsr height_reciprocal_alt, edge_shift_alt, #10;                              \
                                                                                \
   vmla.s32 heights_b, x_starts, heights;                                       \
   mla height_b_alt, height_minor_b, start_c, height_b_alt;                     \
@@ -1016,6 +971,7 @@ function(setup_spans_up_left)
 function(setup_spans_up_right)
   setup_spans_up_up(right, left)
 
+.pool
 
 #define setup_spans_down_down(minor, major)                                    \
   setup_spans_prologue();                                                      \
@@ -1224,6 +1180,7 @@ function(setup_spans_up_down)
   setup_spans_prologue_b()
   bal 4b
 
+.pool
 
 #undef span_uvrg_offset
 #undef span_edge_data
@@ -4078,14 +4035,11 @@ function(blend_blocks_textured_add_fourth_##mask_evaluate)                     \
                                                                                \
   vmov.u16 d128_0x7C1F, #0x7C00;                                               \
   vmov.u16 d128_0x03E0, #0x0300;                                               \
-  vmov.u16 d128_0x83E0, #0x8300;                                               \
   vmov.u16 d128_0x1C07, #0x1C00;                                               \
-  vmov.u16 d128_0x80E0, #0x8000;                                               \
+  vmov.u16 d128_0x00E0, #0x00E0;                                               \
   vorr.u16 d128_0x7C1F, #0x001F;                                               \
   vorr.u16 d128_0x03E0, #0x00E0;                                               \
-  vorr.u16 d128_0x83E0, #0x00E0;                                               \
   vorr.u16 d128_0x1C07, #0x0007;                                               \
-  vorr.u16 d128_0x80E0, #0x00E0;                                               \
                                                                                \
   vld1.u32 { draw_mask }, [ draw_mask_ptr, :128 ], c_64;                       \
   ldr fb_ptr_next, [ pixel_ptr, #28 ];                                         \
@@ -4094,33 +4048,31 @@ function(blend_blocks_textured_add_fourth_##mask_evaluate)                     \
   vld1.u16 { fb_pixels }, [ fb_ptr_next ];                                     \
   blend_blocks_add_mask_set_##mask_evaluate();                                 \
   vshr.s16 pixels_fourth, pixels, #2;                                          \
+  vand.u16 pixels_rb, pixels_fourth, d128_0x1C07;                              \
                                                                                \
   blend_blocks_add_mask_copy_##mask_evaluate();                                \
-  vorr.u16 pixels, pixels, msb_mask;                                           \
-  vand.u16 pixels_rb, pixels_fourth, d128_0x1C07;                              \
-  vand.u16 fb_pixels_masked, fb_pixels, blend_mask;                            \
-  vand.u16 pixels_mg, pixels_fourth, d128_0x80E0;                              \
-  vand.u16 fb_pixels_rb, fb_pixels_masked, d128_0x7C1F;                        \
-  vand.u16 fb_pixels_g, fb_pixels_masked, d128_0x03E0;                         \
+  vand.u16 pixels_g, pixels_fourth, d128_0x00E0;                               \
+  vand.u16 fb_pixels_rb, fb_pixels, d128_0x7C1F;                               \
+  vand.u16 fb_pixels_g, fb_pixels, d128_0x03E0;                                \
   vadd.u16 fb_pixels_rb, fb_pixels_rb, pixels_rb;                              \
-  vadd.u16 fb_pixels_g, fb_pixels_g, pixels_mg;                                \
+  vadd.u16 fb_pixels_g, fb_pixels_g, pixels_g;                                 \
   vmin.u8 fb_pixels_rb, fb_pixels_rb, d128_0x7C1F;                             \
-  vmin.u16 fb_pixels_g, fb_pixels_g, d128_0x83E0;                              \
+  vmin.u16 fb_pixels_g, fb_pixels_g, d128_0x03E0;                              \
                                                                                \
   subs num_blocks, num_blocks, #1;                                             \
   beq 1f;                                                                      \
                                                                                \
  0:                                                                            \
   mov fb_ptr, fb_ptr_next;                                                     \
-                                                                               \
   ldr fb_ptr_next, [ pixel_ptr, #28 ];                                         \
                                                                                \
+  vorr.u16 blend_pixels, fb_pixels_rb, fb_pixels_g;                            \
+  vbif.u16 blend_pixels, pixels, blend_mask;                                   \
+                                                                               \
   vld1.u32 { pixels }, [ pixel_ptr, :128 ], c_64;                              \
   vclt.s16 blend_mask, pixels, #0;                                             \
-                                                                               \
   vshr.s16 pixels_fourth, pixels, #2;                                          \
-  vorr.u16 pixels, pixels, msb_mask;                                           \
-  vorr.u16 blend_pixels, fb_pixels_rb, fb_pixels_g;                            \
+  vorr.u16 blend_pixels, blend_pixels, msb_mask;                               \
   vand.u16 pixels_rb, pixels_fourth, d128_0x1C07;                              \
                                                                                \
   vbit.u16 blend_pixels, fb_pixels, draw_mask;                                 \
@@ -4133,24 +4085,25 @@ function(blend_blocks_textured_add_fourth_##mask_evaluate)                     \
                                                                                \
   vld1.u16 { fb_pixels }, [ fb_ptr_next ];                                     \
   blend_blocks_add_mask_set_##mask_evaluate();                                 \
-  vand.u16 fb_pixels_masked, fb_pixels, blend_mask;                            \
   blend_blocks_add_mask_copy_##mask_evaluate();                                \
-  vand.u16 pixels_mg, pixels_fourth, d128_0x80E0;                              \
-  vand.u16 fb_pixels_rb, fb_pixels_masked, d128_0x7C1F;                        \
+  vand.u16 pixels_g, pixels_fourth, d128_0x00E0;                               \
+  vand.u16 fb_pixels_rb, fb_pixels, d128_0x7C1F;                               \
   vst1.u16 { blend_pixels }, [ fb_ptr ];                                       \
                                                                                \
  3:                                                                            \
-  vand.u16 fb_pixels_g, fb_pixels_masked, d128_0x03E0;                         \
+  vand.u16 fb_pixels_g, fb_pixels, d128_0x03E0;                                \
   vadd.u16 fb_pixels_rb, fb_pixels_rb, pixels_rb;                              \
-  vadd.u16 fb_pixels_g, fb_pixels_g, pixels_mg;                                \
+  vadd.u16 fb_pixels_g, fb_pixels_g, pixels_g;                                 \
   vmin.u8 fb_pixels_rb, fb_pixels_rb, d128_0x7C1F;                             \
-  vmin.u16 fb_pixels_g, fb_pixels_g, d128_0x83E0;                              \
+  vmin.u16 fb_pixels_g, fb_pixels_g, d128_0x03E0;                              \
                                                                                \
   subs num_blocks, num_blocks, #1;                                             \
   bne 0b;                                                                      \
                                                                                \
  1:                                                                            \
   vorr.u16 blend_pixels, fb_pixels_rb, fb_pixels_g;                            \
+  vorr.u16 blend_pixels, blend_pixels, msb_mask;                               \
+  vbif.u16 blend_pixels, pixels, blend_mask;                                   \
   vbit.u16 blend_pixels, fb_pixels, draw_mask;                                 \
   vst1.u16 { blend_pixels }, [ fb_ptr_next ];                                  \
                                                                                \
@@ -4158,16 +4111,16 @@ function(blend_blocks_textured_add_fourth_##mask_evaluate)                     \
                                                                                \
  2:                                                                            \
   vst1.u16 { blend_pixels }, [ fb_ptr ];                                       \
-  vand.u16 pixels_mg, pixels_fourth, d128_0x80E0;                              \
+  vand.u16 pixels_g, pixels_fourth, d128_0x00E0;                               \
                                                                                \
   vld1.u16 { fb_pixels }, [ fb_ptr_next ];                                     \
   blend_blocks_add_mask_set_##mask_evaluate();                                 \
-  vand.u16 fb_pixels_masked, fb_pixels, blend_mask;                            \
   blend_blocks_add_mask_copy_##mask_evaluate();                                \
-  vand.u16 fb_pixels_rb, fb_pixels_masked, d128_0x7C1F;                        \
+  vand.u16 fb_pixels_rb, fb_pixels, d128_0x7C1F;                               \
   bal 3b                                                                       \
 
 
+
 #define blend_blocks_add_fourth_untextured_builder(mask_evaluate)              \
 .align 3;                                                                      \
                                                                                \
@@ -4184,12 +4137,10 @@ function(blend_blocks_untextured_add_fourth_##mask_evaluate)                   \
                                                                                \
   vmov.u16 d128_0x7C1F, #0x7C00;                                               \
   vmov.u16 d128_0x03E0, #0x0300;                                               \
-  vmov.u16 d128_0x83E0, #0x8300;                                               \
   vmov.u16 d128_0x1C07, #0x1C00;                                               \
   vmov.u16 d128_0x00E0, #0x00E0;                                               \
   vorr.u16 d128_0x7C1F, #0x001F;                                               \
   vorr.u16 d128_0x03E0, #0x00E0;                                               \
-  vorr.u16 d128_0x83E0, #0x00E0;                                               \
   vorr.u16 d128_0x1C07, #0x0007;                                               \
                                                                                \
   vld1.u32 { draw_mask }, [ draw_mask_ptr, :128 ], c_64;                       \
@@ -4214,7 +4165,6 @@ function(blend_blocks_untextured_add_fourth_##mask_evaluate)                   \
                                                                                \
  0:                                                                            \
   mov fb_ptr, fb_ptr_next;                                                     \
-                                                                               \
   ldr fb_ptr_next, [ pixel_ptr, #28 ];                                         \
                                                                                \
   vld1.u32 { pixels }, [ pixel_ptr, :128 ], c_64;                              \
@@ -4337,31 +4287,20 @@ function(warmup)
 
   bx lr
 
+#undef vram_ptr
 #undef color
-#undef y
+#undef width
 #undef height
-
-#define psx_gpu                                           r0
-#define color                                             r1
-#define x                                                 r2
-#define y                                                 r3
+#undef pitch
 
 #define vram_ptr                                          r0
-#define width                                             r3
-#define height                                            r12
-
-#define parameter_width_offset                            0
-#define parameter_height_offset                           4
+#define color                                             r1
+#define width                                             r2
+#define height                                            r3
 
-#define color_r                                           r14
-#define color_g                                           r4
-#define color_b                                           r5  
+#define pitch                                             r1
 
-#define left_unaligned                                    r14
-#define right_unaligned                                   r4
-#define pitch                                             r5
-#define num_unaligned                                     r2
-#define num_width                                         r6
+#define num_width                                         r12
 
 #undef colors_a
 #undef colors_b
@@ -4372,44 +4311,28 @@ function(warmup)
 .align 3
 
 function(render_block_fill_body)
-  ldr vram_ptr, [ psx_gpu, #psx_gpu_vram_ptr_offset ]
-  ldr height, [ sp, #parameter_height_offset ]
-
-  add vram_ptr, vram_ptr, y, lsl #11
-  ldr width, [ sp, #parameter_width_offset ]
-
-  add vram_ptr, vram_ptr, x, lsl #1
-  stmdb sp!, { r4 - r6, r14 }
-
-  ubfx color_r, color, #3, #5
-  ubfx color_g, color, #11, #5
-
-  ubfx color_b, color, #19, #5
-  orr color, color_r, color_g, lsl #5
-
-  orr color, color, color_b, lsl #10
   vdup.u16 colors_a, color
+  mov pitch, #2048
 
   vmov colors_b, colors_a
-  mov pitch, #2048
   sub pitch, pitch, width, lsl #1
 
- 0:
-  mov num_width, width, lsr #4
+  mov num_width, width
 
- 1:
-  vst1.u32 { colors_a, colors_b }, [ vram_ptr, :128 ]!
+ 0:  
+  vst1.u32 { colors_a, colors_b }, [ vram_ptr, :256 ]!
 
-  subs num_width, num_width, #1
-  bne 1b
+  subs num_width, num_width, #16
+  bne 0b
 
   add vram_ptr, vram_ptr, pitch
+  mov num_width, width
+
   subs height, height, #1
   bne 0b
- 1: 
-  ldmia sp!, { r4 - r6, pc }
 
+  bx lr
 
 #undef x
 #undef y