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example: add JavaCubeMemory

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This commit is contained in:
Zack Buhman 2025-01-21 18:36:49 -06:00
parent 99b7346a1b
commit 45501b58cb
6 changed files with 258 additions and 2 deletions
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2
c/classpath.h
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@ -6,6 +6,7 @@
#include "classes/filesystem/iso9660/PrimaryVolumeDescriptor.class.h"
#include "classes/filesystem/iso9660/VolumeParser.class.h"
#include "classes/java/io/PrintStream.class.h"
#include "classes/java/lang/Character.class.h"
#include "classes/java/lang/DecimalDigits.class.h"
#include "classes/java/lang/Integer.class.h"
#include "classes/java/lang/Float.class.h"
@ -79,3 +80,4 @@
#include "classes/sega/dreamcast/holly/TAVertexParameter.class.h"
#include "classes/sega/dreamcast/holly/TextureMemoryAllocation.class.h"
#include "classes/sega/dreamcast/sh7091/StoreQueueBuffer.class.h"
#include "classes/example/JavaCubeMemory.class.h"

2
c/classpath.inc.c
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@ -6,6 +6,7 @@
(const uint8_t *)&_binary_classes_filesystem_iso9660_PrimaryVolumeDescriptor_class_start,
(const uint8_t *)&_binary_classes_filesystem_iso9660_VolumeParser_class_start,
(const uint8_t *)&_binary_classes_java_io_PrintStream_class_start,
(const uint8_t *)&_binary_classes_java_lang_Character_class_start,
(const uint8_t *)&_binary_classes_java_lang_DecimalDigits_class_start,
(const uint8_t *)&_binary_classes_java_lang_Integer_class_start,
(const uint8_t *)&_binary_classes_java_lang_Float_class_start,
@ -79,3 +80,4 @@
(const uint8_t *)&_binary_classes_sega_dreamcast_holly_TAVertexParameter_class_start,
(const uint8_t *)&_binary_classes_sega_dreamcast_holly_TextureMemoryAllocation_class_start,
(const uint8_t *)&_binary_classes_sega_dreamcast_sh7091_StoreQueueBuffer_class_start,
(const uint8_t *)&_binary_classes_example_JavaCubeMemory_class_start,

2
c/main_dreamcast.c
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@ -20,7 +20,7 @@ void main()
//const uint8_t * main_class = (const uint8_t *)"example/JavaCube";
//const uint8_t * main_class = (const uint8_t *)"example/GdromClassLoader";
const uint8_t * main_class = (const uint8_t *)"Main";
const uint8_t * main_class = (const uint8_t *)"example/JavaCubeMemory";
int main_class_length = string_length((const char *)main_class);
for (int i = 0; i < main_class_length; i++)

247
classes/example/JavaCubeMemory.java Normal file
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@ -0,0 +1,247 @@
package example;
import sega.dreamcast.holly.Background;
import sega.dreamcast.holly.Core;
import sega.dreamcast.holly.CoreBits;
import sega.dreamcast.holly.Holly;
import sega.dreamcast.holly.RegionArray;
import sega.dreamcast.holly.TABits;
import sega.dreamcast.holly.TAFIFOPolygonConverter;
import sega.dreamcast.holly.TAParameter;
import sega.dreamcast.holly.TextureMemoryAllocation;
import sega.dreamcast.holly.ISPTSP;
import sega.dreamcast.holly.TAVertexParameter;
import sega.dreamcast.holly.TAGlobalParameter;
import sega.dreamcast.holly.VideoOutput;
import sega.dreamcast.holly.VideoOutputMode;
import sega.dreamcast.MemoryMap;
import model.CubeModel;
import model.Vec3;
import model.Vec2;
import model.FacePTN;
import model.ModelObject;
import jvm.internal.Memory;
public class JavaCubeMemory {
static final int framebuffer_width = 640;
static final int framebuffer_height = 480;
static Vec2[] quad;
static Vec2[] quad_uv;
static float theta;
public static int[] texture_extents;
static String[] texture_filenames = {
"JAVA_CUP.DAT;1",
"JAVA_TEX.DAT;1",
};
static final int parameter_control_word = TAParameter.para_control__para_type__polygon_or_modifier_volume
| TAParameter.para_control__list_type__translucent
| TAParameter.obj_control__col_type__packed_color
| TAParameter.obj_control__texture;
static final int isp_tsp_instruction_word = ISPTSP.isp_tsp_instruction_word__depth_compare_mode__greater
| ISPTSP.isp_tsp_instruction_word__culling_mode__no_culling;
static final int tsp_instruction_word = ISPTSP.tsp_instruction_word__src_alpha_instr__src_alpha
| ISPTSP.tsp_instruction_word__dst_alpha_instr__inverse_src_alpha
| ISPTSP.tsp_instruction_word__fog_control__no_fog
| ISPTSP.tsp_instruction_word__texture_u_size__512
| ISPTSP.tsp_instruction_word__texture_v_size__1024
| ISPTSP.tsp_instruction_word__use_alpha;
static final int texture_address = TextureMemoryAllocation.texture_regions[1][0] + 512;
static final int texture_control_word = ISPTSP.texture_control_word__pixel_format__4444
| ISPTSP.texture_control_word__scan_order__non_twiddled
| ISPTSP.texture_control_word__texture_address(texture_address / 8);
static {
texture_extents = new int[texture_filenames.length];
for (int i = 0; i < texture_filenames.length; i++) {
texture_extents[i] = -1;
}
}
public static void transform_vertex(int parameter_control_word,
Vec3[] position,
Vec2[] texture,
FacePTN ptn) {
float px = position[ptn.position].x;
float py = position[ptn.position].y;
float pz = position[ptn.position].z;
float theta2 = theta * 2.0f;
float scale = (Math.sin(theta2) + 3.0f) * 0.3f;
px *= scale;
py *= scale;
pz *= scale;
float x0 = px * Math.cos(theta) - py * Math.sin(theta);
float y0 = px * Math.sin(theta) + py * Math.cos(theta);
float z0 = pz;
float theta05 = theta * 0.5f;
float x1 = x0 * Math.cos(theta05) - z0 * Math.sin(theta05);
float y1 = y0;
float z1 = x0 * Math.sin(theta05) + z0 * Math.cos(theta05);
// camera transform
float z2 = 3f + z1;
// perspective
float x2 = x1 / z2;
float y2 = y1 / z2;
// screen space
float x = x2 * 240f + 320f;
float y = -y2 * 240f + 240f;
float z = 1.0f / z2;
TAVertexParameter.polygon_type_3(parameter_control_word,
x,
y,
z,
texture[ptn.texture].x, // u
texture[ptn.texture].y, // v
0xff000000, // base_color
0); // offset_color
}
public static void transform_triangle(int n, Vec3[] position, Vec2[] texture, FacePTN[] face) {
for (int i = 0; i < 3; i++) {
int parameter_control_word = TAParameter.para_control__para_type__vertex_parameter;
if (i == 2)
parameter_control_word |= TAParameter.para_control__end_of_strip;
transform_vertex(parameter_control_word, position, texture, face[i]);
}
}
public static void transfer_cube_scene() {
// global parameters
TAGlobalParameter.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
// triangle parameters
ModelObject obj = CubeModel.objects[0];
for (int i = 0; i < obj.faces.length; i ++) {
transform_triangle(i, CubeModel.position, CubeModel.texture, obj.faces[i]);
}
// end of list
TAGlobalParameter.end_of_list(TAParameter.para_control__para_type__end_of_list);
}
public static void transfer_textures() {
int texture = MemoryMap.texture_memory64 + TextureMemoryAllocation.texture_regions[1][0] + 512;
int length = 512 * 512 * 2 * 2 / 4;
int address = 0xac400000;
for (int i = 0; i < length; i++) {
int value = Memory.getU4(address);
Memory.putU4(texture, value);
if ((i & 2047) == 0) {
System.out.print(i);
System.out.print(' ');
System.out.print(address);
System.out.print(' ');
System.out.print(texture);
}
address += 4;
texture += 4;
}
}
public static void main() {
System.out.println("main1");
int ta_alloc =
TABits.ta_alloc_ctrl__opb_mode__increasing_addresses
| TABits.ta_alloc_ctrl__pt_opb__no_list
| TABits.ta_alloc_ctrl__tm_opb__no_list
| TABits.ta_alloc_ctrl__t_opb__8x4byte
| TABits.ta_alloc_ctrl__om_opb__no_list
| TABits.ta_alloc_ctrl__o_opb__no_list
;
RegionArray.OPBSize[] opb_size = {
new RegionArray.OPBSize(0, // opaque
0, // opaque_modifier_volume
8 * 4, // translucent
0, // translucent_modifier_volume
0) // punch_through
};
int opb_size_total = opb_size[0].total();
int background_color = 0xff100a00;
Background.background(TextureMemoryAllocation.background_start[0],
0x00c0c0c0); // sega white
Background.background(TextureMemoryAllocation.background_start[1],
0x00c0c0c0);//background_color); // dark black
Memory.putU4(Holly.VO_BORDER_COL, background_color);
int num_render_passes = opb_size.length;
RegionArray.region_array(framebuffer_width / 32,
framebuffer_height / 32,
opb_size,
num_render_passes,
TextureMemoryAllocation.region_array_start[0],
TextureMemoryAllocation.object_list_start[0]);
RegionArray.region_array(framebuffer_width / 32,
framebuffer_height / 32,
opb_size,
num_render_passes,
TextureMemoryAllocation.region_array_start[1],
TextureMemoryAllocation.object_list_start[1]);
Core.init();
System.out.println("transfer_textures");
transfer_textures();
System.out.println("transfer_textures2");
VideoOutput.set_framebuffer_resolution(640, 480);
VideoOutput.set_mode(VideoOutputMode.vga);
int core = 0;
int ta = 0;
System.out.println("main");
while (true) {
// unpipelined render loop
TAFIFOPolygonConverter.init(TextureMemoryAllocation.isp_tsp_parameters_start[ta],
TextureMemoryAllocation.isp_tsp_parameters_end[ta],
TextureMemoryAllocation.object_list_start[ta],
TextureMemoryAllocation.object_list_end[ta],
opb_size_total,
ta_alloc,
framebuffer_width / 32,
framebuffer_height / 32);
transfer_cube_scene();
TAFIFOPolygonConverter.wait_translucent_list();
Core.start_render(TextureMemoryAllocation.region_array_start[ta],
TextureMemoryAllocation.isp_tsp_parameters_start[ta],
TextureMemoryAllocation.background_start[1],
TextureMemoryAllocation.framebuffer_start[core],
framebuffer_width);
Core.wait_end_of_render_tsp();
while (!(CoreBits.spg_status__vsync(Memory.getU4(Holly.SPG_STATUS)) != 0));
Memory.putU4(Holly.FB_R_SOF1, TextureMemoryAllocation.framebuffer_start[core]);
while ((CoreBits.spg_status__vsync(Memory.getU4(Holly.SPG_STATUS)) != 0));
core = (core + 1) % 1;
theta += Math.DEGREES_TO_RADIANS;
}
}
}

4
classpath.mk
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@ -7,6 +7,7 @@ CLASS_PATH = \
classes/filesystem/iso9660/PrimaryVolumeDescriptor.class.o \
classes/filesystem/iso9660/VolumeParser.class.o \
classes/java/io/PrintStream.class.o \
classes/java/lang/Character.class.o \
classes/java/lang/DecimalDigits.class.o \
classes/java/lang/Integer.class.o \
classes/java/lang/Float.class.o \
@ -79,4 +80,5 @@ CLASS_PATH = \
classes/sega/dreamcast/holly/TAGlobalParameter.class.o \
classes/sega/dreamcast/holly/TAVertexParameter.class.o \
classes/sega/dreamcast/holly/TextureMemoryAllocation.class.o \
classes/sega/dreamcast/sh7091/StoreQueueBuffer.class.o
classes/sega/dreamcast/sh7091/StoreQueueBuffer.class.o \
classes/example/JavaCubeMemory.class.o

3
generate_classpath.sh
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@ -81,6 +81,7 @@ declare -a boot_classes=(
filesystem/iso9660/PrimaryVolumeDescriptor.class
filesystem/iso9660/VolumeParser.class
java/io/PrintStream.class
java/lang/Character.class
java/lang/DecimalDigits.class
java/lang/Integer.class
java/lang/Float.class
@ -158,6 +159,8 @@ declare -a boot_classes=(
sega/dreamcast/holly/TAVertexParameter.class
sega/dreamcast/holly/TextureMemoryAllocation.class
sega/dreamcast/sh7091/StoreQueueBuffer.class
example/JavaCubeMemory.class
)
function boot_classes () {