example: add gradient

common.lds

@@ -34,13 +34,6 @@ SECTIONS
     KEEP(*(.ctors.*))
   } > p1ram
 
-  .bss ALIGN(4) (NOLOAD) :
-  {
-    *(.bss)
-    *(.bss.*)
-    *(COMMON)
-  } > p1ram
-
   .text.vbr ALIGN(4) : SUBALIGN(4)
   {
     __vbr100 = .;
@@ -51,6 +44,13 @@ SECTIONS
     KEEP(*(.vbr.600))
   } > p1ram
 
+  .bss ALIGN(4) (NOLOAD) :
+  {
+    *(.bss)
+    *(.bss.*)
+    *(COMMON)
+  } > p1ram
+
   INCLUDE "debug.lds"
 }
 

example/example.mk

@@ -907,3 +907,17 @@ CASTLE_OBJ = \
 
 example/castle.elf: LDSCRIPT = $(LIB)/main.lds
 example/castle.elf: $(START_OBJ) $(CASTLE_OBJ)
+
+GRADIENT_OBJ = \
+	example/gradient.o \
+	holly/core.o \
+	holly/region_array.o \
+	holly/background.o \
+	holly/ta_fifo_polygon_converter.o \
+	holly/video_output.o \
+	sh7091/serial.o \
+	texture/gradient/gradient.data.o \
+	$(LIBGCC)
+
+example/gradient.elf: LDSCRIPT = $(LIB)/main.lds
+example/gradient.elf: $(START_OBJ) $(GRADIENT_OBJ)

example/gradient.cpp

@@ -0,0 +1,417 @@
+#include <stdint.h>
+
+#include "holly/background.hpp"
+#include "holly/core.hpp"
+#include "holly/core_bits.hpp"
+#include "holly/holly.hpp"
+#include "holly/isp_tsp.hpp"
+#include "holly/region_array.hpp"
+#include "holly/ta_bits.hpp"
+#include "holly/ta_fifo_polygon_converter.hpp"
+#include "holly/ta_global_parameter.hpp"
+#include "holly/ta_parameter.hpp"
+#include "holly/ta_vertex_parameter.hpp"
+#include "holly/texture_memory_alloc3.hpp"
+#include "holly/video_output.hpp"
+
+#include "sh7091/sh7091.hpp"
+#include "sh7091/sh7091_bits.hpp"
+#include "sh7091/serial.hpp"
+#include "sh7091/vbr.hpp"
+
+#include "systembus.hpp"
+#include "systembus_bits.hpp"
+
+#include "memorymap.hpp"
+
+#include "math/vec2.hpp"
+#include "math/vec3.hpp"
+#include "math/vec4.hpp"
+#include "math/mat4x4.hpp"
+
+using vec2 = vec<2, float>;
+using vec3 = vec<3, float>;
+using vec4 = vec<4, float>;
+using mat4x4 = mat<4, 4, float>;
+
+#include "texture/gradient/gradient.data.h"
+
+void vbr100()
+{
+  serial::string("vbr100\n");
+  serial::string("expevt ");
+  serial::integer<uint16_t>(sh7091.CCN.EXPEVT);
+  serial::string("intevt ");
+  serial::integer<uint16_t>(sh7091.CCN.INTEVT);
+  serial::string("tra ");
+  serial::integer<uint16_t>(sh7091.CCN.TRA);
+
+  uint32_t spc;
+  uint32_t ssr;
+  asm volatile ("stc spc,%0" : "=r" (spc));
+  asm volatile ("stc ssr,%0" : "=r" (ssr));
+  serial::string("spc ");
+  serial::integer(spc);
+  serial::string("ssr ");
+  serial::integer(ssr);
+
+  while (1);
+}
+
+void vbr400()
+{
+  serial::string("vbr400\n");
+  serial::string("expevt ");
+  serial::integer<uint16_t>(sh7091.CCN.EXPEVT);
+  serial::string("intevt ");
+  serial::integer<uint16_t>(sh7091.CCN.INTEVT);
+  serial::string("tra ");
+  serial::integer<uint16_t>(sh7091.CCN.TRA);
+
+  uint32_t spc;
+  uint32_t ssr;
+  asm volatile ("stc spc,%0" : "=r" (spc));
+  asm volatile ("stc ssr,%0" : "=r" (ssr));
+  serial::string("spc ");
+  serial::integer(spc);
+  serial::string("ssr ");
+  serial::integer(ssr);
+
+  while (1);
+}
+
+static int render_done = 0;
+
+void vbr600()
+{
+  if (sh7091.CCN.EXPEVT == 0 && sh7091.CCN.INTEVT == 0x320) {
+    uint32_t istnrm = system.ISTNRM;
+    uint32_t isterr = system.ISTERR;
+
+    if (isterr) {
+      serial::string("isterr: ");
+      serial::integer<uint32_t>(system.ISTERR);
+    }
+
+    if (istnrm & istnrm::end_of_render_tsp) {
+      system.ISTNRM = istnrm::end_of_render_tsp
+                    | istnrm::end_of_render_isp
+                    | istnrm::end_of_render_video;
+      render_done = 1;
+      return;
+    }
+  }
+
+  serial::string("vbr600\n");
+  serial::string("expevt ");
+  serial::integer<uint16_t>(sh7091.CCN.EXPEVT);
+  serial::string("intevt ");
+  serial::integer<uint16_t>(sh7091.CCN.INTEVT);
+  serial::string("tra ");
+  serial::integer<uint16_t>(sh7091.CCN.TRA);
+
+  serial::string("istnrm: ");
+  serial::integer<uint32_t>(system.ISTNRM);
+  serial::string("isterr: ");
+  serial::integer<uint32_t>(system.ISTERR);
+
+  uint32_t spc;
+  uint32_t ssr;
+  asm volatile ("stc spc,%0" : "=r" (spc));
+  asm volatile ("stc ssr,%0" : "=r" (ssr));
+  serial::string("spc ");
+  serial::integer(spc);
+  serial::string("ssr ");
+  serial::integer(ssr);
+
+  while (1);
+}
+
+void interrupt_init()
+{
+  system.IML2NRM = 0;
+  system.IML2ERR = 0;
+  system.IML2EXT = 0;
+
+  system.IML4NRM = 0;
+  system.IML4ERR = 0;
+  system.IML4EXT = 0;
+
+  system.IML6NRM = 0;
+  system.IML6ERR = 0;
+  system.IML6EXT = 0;
+
+  system.ISTERR = 0xffffffff;
+  system.ISTNRM = 0xffffffff;
+
+  sh7091.CCN.INTEVT = 0;
+  sh7091.CCN.EXPEVT = 0;
+
+  uint32_t vbr = reinterpret_cast<uint32_t>(&__vbr_link_start) - 0x100;
+
+  asm volatile ("ldc %0,vbr"
+		:
+		: "r" (vbr));
+
+  uint32_t sr;
+  asm volatile ("stc sr,%0"
+		: "=r" (sr));
+  serial::string("sr ");
+  serial::integer<uint32_t>(sr);
+
+  sr &= ~sh::sr::bl; // BL
+  sr &= ~sh::sr::imask(15); // imask
+
+  serial::string("sr ");
+  serial::integer<uint32_t>(sr);
+
+  asm volatile ("ldc %0,sr"
+		:
+		: "r" (sr));
+}
+
+void global_polygon_type_0(ta_parameter_writer& writer, uint32_t texture_address, int width, int height)
+{
+  const uint32_t parameter_control_word = para_control::para_type::polygon_or_modifier_volume
+                                        | para_control::list_type::opaque
+                                        | obj_control::col_type::packed_color
+                                        | obj_control::texture
+                                        ;
+
+  const uint32_t isp_tsp_instruction_word = isp_tsp_instruction_word::depth_compare_mode::greater
+                                          | isp_tsp_instruction_word::culling_mode::no_culling;
+
+  const uint32_t tsp_instruction_word = tsp_instruction_word::fog_control::no_fog
+                                      | tsp_instruction_word::src_alpha_instr::one
+                                      | tsp_instruction_word::dst_alpha_instr::zero
+                                      | tsp_instruction_word::texture_u_size::from_int(width)
+                                      | tsp_instruction_word::texture_v_size::from_int(height)
+    | tsp_instruction_word::clamp_uv::uv
+    | tsp_instruction_word::filter_mode::bilinear_filter
+                                      ;
+
+  const uint32_t texture_control_word = texture_control_word::pixel_format::_565
+                                      | texture_control_word::scan_order::twiddled
+                                      | texture_control_word::texture_address(texture_address / 8);
+
+  writer.append<ta_global_parameter::polygon_type_0>() =
+    ta_global_parameter::polygon_type_0(parameter_control_word,
+                                        isp_tsp_instruction_word,
+                                        tsp_instruction_word,
+                                        texture_control_word,
+                                        0, // data_size_for_sort_dma
+                                        0  // next_address_for_sort_dma
+                                        );
+}
+
+static inline void render_quad(ta_parameter_writer& writer,
+                               uint32_t base_color,
+                               vec3 ap,
+                               vec3 bp,
+                               vec3 cp,
+                               vec3 dp,
+                               vec2 at,
+                               vec2 bt,
+                               vec2 ct,
+                               vec2 dt)
+{
+  if (ap.z < 0 || bp.z < 0 || cp.z < 0)
+    return;
+
+  writer.append<ta_vertex_parameter::polygon_type_3>() =
+    ta_vertex_parameter::polygon_type_3(polygon_vertex_parameter_control_word(false),
+                                        ap.x, ap.y, ap.z,
+                                        at.x, at.y,
+                                        base_color,
+                                        0); // offset_color
+
+  writer.append<ta_vertex_parameter::polygon_type_3>() =
+    ta_vertex_parameter::polygon_type_3(polygon_vertex_parameter_control_word(false),
+                                        bp.x, bp.y, bp.z,
+                                        bt.x, bt.y,
+                                        base_color,
+                                        0); // offset_color
+
+  writer.append<ta_vertex_parameter::polygon_type_3>() =
+    ta_vertex_parameter::polygon_type_3(polygon_vertex_parameter_control_word(false),
+                                        dp.x, dp.y, dp.z,
+                                        dt.x, dt.y,
+                                        base_color,
+                                        0); // offset_color
+
+  writer.append<ta_vertex_parameter::polygon_type_3>() =
+    ta_vertex_parameter::polygon_type_3(polygon_vertex_parameter_control_word(true),
+                                        cp.x, cp.y, cp.z,
+                                        ct.x, ct.y,
+                                        base_color,
+                                        0); // offset_color
+}
+
+struct vertex {
+  vec3 pos;
+  vec2 tex;
+};
+
+struct vertex quad[] = {
+  {{  0,   0, 0.1}, {0, 0}},
+  {{640,   0, 0.1}, {1, 0}},
+  {{640, 480, 0.1}, {1, 1}},
+  {{  0, 480, 0.1}, {0, 1}},
+};
+
+void transfer_scene(ta_parameter_writer& writer)
+{
+  uint32_t texture_address = texture_memory_alloc.texture.start;
+  global_polygon_type_0(writer, texture_address, 8, 8);
+
+  render_quad(writer, 0,
+              quad[0].pos,
+              quad[1].pos,
+              quad[2].pos,
+              quad[3].pos,
+              quad[0].tex,
+              quad[1].tex,
+              quad[2].tex,
+              quad[3].tex);
+
+  writer.append<ta_global_parameter::end_of_list>() =
+    ta_global_parameter::end_of_list(para_control::para_type::end_of_list);
+}
+
+void transfer_ta_fifo_texture_memory_32byte(void * dst, const void * src, int length)
+{
+  uint32_t out_addr = (uint32_t)dst;
+  sh7091.CCN.QACR0 = ((reinterpret_cast<uint32_t>(out_addr) >> 24) & 0b11100);
+  sh7091.CCN.QACR1 = ((reinterpret_cast<uint32_t>(out_addr) >> 24) & 0b11100);
+
+  volatile uint32_t * base = &store_queue[(out_addr & 0x03ffffc0) / 4];
+  const uint32_t * src32 = reinterpret_cast<const uint32_t *>(src);
+
+  length = (length + 31) & ~31; // round up to nearest multiple of 32
+  while (length > 0) {
+    base[0] = src32[0];
+    base[1] = src32[1];
+    base[2] = src32[2];
+    base[3] = src32[3];
+    base[4] = src32[4];
+    base[5] = src32[5];
+    base[6] = src32[6];
+    base[7] = src32[7];
+    asm volatile ("pref @%0"
+                  :                // output
+                  : "r" (&base[0]) // input
+                  : "memory");
+    length -= 32;
+    base += 8;
+    src32 += 8;
+  }
+}
+
+void transfer_texture()
+{
+  void * start = (void *)&_binary_texture_gradient_gradient_data_start;
+  int size = (int)&_binary_texture_gradient_gradient_data_size;
+  uint32_t offset = texture_memory_alloc.texture.start;
+  void * dst = (void *)(&texture_memory64[offset / 4]);
+
+  transfer_ta_fifo_texture_memory_32byte(dst, start, size);
+}
+
+void transfer_textures()
+{
+  system.LMMODE0 = 0; // 64-bit address space
+  system.LMMODE1 = 0; // 64-bit address space
+
+  transfer_texture();
+}
+
+static uint8_t __attribute__((aligned(32))) ta_parameter_buf[1024 * 1024] = {0};
+
+void main()
+{
+  serial::init(0);
+
+  interrupt_init();
+
+  constexpr uint32_t ta_alloc = 0
+                              | ta_alloc_ctrl::pt_opb::no_list
+			      | ta_alloc_ctrl::tm_opb::no_list
+                              | ta_alloc_ctrl::t_opb::no_list
+                              | ta_alloc_ctrl::om_opb::no_list
+                              | ta_alloc_ctrl::o_opb::_16x4byte;
+
+  constexpr int render_passes = 1;
+  constexpr struct opb_size opb_size[render_passes] = {
+    {
+      .opaque = 16 * 4,
+      .opaque_modifier = 0,
+      .translucent = 0,
+      .translucent_modifier = 0,
+      .punch_through = 0
+    }
+  };
+
+  holly.SOFTRESET = softreset::pipeline_soft_reset
+		  | softreset::ta_soft_reset;
+  holly.SOFTRESET = 0;
+
+  core_init();
+
+  system.IML6NRM = istnrm::end_of_render_tsp;
+
+  const int framebuffer_width = 640;
+  const int framebuffer_height = 480;
+  const int tile_width = framebuffer_width / 32;
+  const int tile_height = framebuffer_height / 32;
+
+  for (int i = 0; i < 2; i++) {
+    region_array_multipass(tile_width,
+                           tile_height,
+                           opb_size,
+                           render_passes,
+                           texture_memory_alloc.region_array[i].start,
+                           texture_memory_alloc.object_list[i].start);
+
+    background_parameter2(texture_memory_alloc.background[i].start,
+                          0xff202040);
+  }
+
+  int ta = 0;
+  int core = 0;
+
+  ta_parameter_writer writer = ta_parameter_writer(ta_parameter_buf);
+
+  transfer_textures();
+  video_output::set_mode_vga();
+
+  while (1) {
+    ta_polygon_converter_init2(texture_memory_alloc.isp_tsp_parameters[ta].start,
+			       texture_memory_alloc.isp_tsp_parameters[ta].end,
+			       texture_memory_alloc.object_list[ta].start,
+			       texture_memory_alloc.object_list[ta].end,
+			       opb_size[0].total(),
+			       ta_alloc,
+			       tile_width,
+			       tile_height);
+    writer.offset = 0;
+    transfer_scene(writer);
+    ta_polygon_converter_writeback(writer.buf, writer.offset);
+    ta_polygon_converter_transfer(writer.buf, writer.offset);
+    ta_wait_opaque_list();
+
+    render_done = 0;
+    core_start_render2(texture_memory_alloc.region_array[core].start,
+                       texture_memory_alloc.isp_tsp_parameters[core].start,
+                       texture_memory_alloc.background[core].start,
+                       texture_memory_alloc.framebuffer[core].start,
+                       framebuffer_width);
+    //serial::string("wait render_done");
+    while (render_done == 0) {
+      asm volatile ("nop");
+    };
+
+    while (!spg_status::vsync(holly.SPG_STATUS));
+    holly.FB_R_SOF1 = texture_memory_alloc.framebuffer[ta].start;
+    while (spg_status::vsync(holly.SPG_STATUS));
+  }
+}

texture/gradient/gradient.data

@@ -0,0 +1 @@
+Q[Q[Q[Q[｢ｩ&ｭ｢ｩ&ｭQ[Q[Q[Q[｢ｩ&ｭ｢ｩ&ｭ&ｭ｢ｩ&ｭ｢ｩ｢ｩ｢ｩ｢ｩ｢ｩ&ｭ｢ｩ&ｭ｢ｩ｢ｩ｢ｩ｢ｩ｢ｩQ[Q[Q[Q[｢ｩ&ｭ｢ｩ&ｭQ[Q[Q[Q[｢ｩ&ｭ｢ｩ&ｭ&ｭ｢ｩ&ｭ｢ｩ｢ｩ｢ｩ｢ｩ｢ｩ&ｭ｢ｩ&ｭ｢ｩ｢ｩ｢ｩ｢ｩ｢ｩ

texture/gradient/gradient.data.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern uint32_t _binary_texture_gradient_gradient_data_start __asm("_binary_texture_gradient_gradient_data_start");
+extern uint32_t _binary_texture_gradient_gradient_data_end __asm("_binary_texture_gradient_gradient_data_end");
+extern uint32_t _binary_texture_gradient_gradient_data_size __asm("_binary_texture_gradient_gradient_data_size");
+
+#ifdef __cplusplus
+}
+#endif