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add video mode initialization

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This commit is contained in:
Zack Buhman 2025-01-02 17:01:38 -06:00
parent d0fc7110b3
commit 4182178317
11 changed files with 171 additions and 110 deletions
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95
Makefile.dreamcast.mk
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@ -81,52 +81,55 @@ jvm.iso: boot.bin main.bin zero.bin
/=$(LIB)/COPYRIGH.TXT \
/=$(LIB)/ABSTRACT.TXT \
/=$(LIB)/BIBLIOGR.TXT \
/=example/GdromDirectoryRecordHandler.class \
/=example/GdromTest.class \
/=filesystem/iso9660/ByteParser.class \
/=filesystem/iso9660/DirectoryRecord.class \
/=filesystem/iso9660/ExtentReader.class \
/=filesystem/iso9660/PrimaryVolumeDescriptor.class \
/=filesystem/iso9660/VolumeParser.class \
/=java/io/PrintStream.class \
/=java/lang/DecimalDigits.class \
/=java/lang/Integer.class \
/=java/lang/Object.class \
/=java/lang/String.class \
/=java/lang/System.class \
/=java/misc/Memory.class \
/=jvm/internal/Loader.class \
/=sega/dreamcast/gdrom/G1IF.class \
/=sega/dreamcast/gdrom/GdromBits.class \
/=sega/dreamcast/gdrom/Gdrom.class \
/=sega/dreamcast/gdrom/GdromExtentReader.class \
/=sega/dreamcast/gdrom/GdromCommandPacketFormat_cd_read.class \
/=sega/dreamcast/gdrom/GdromCommandPacketFormat.class \
/=sega/dreamcast/gdrom/GdromCommandPacketFormat_get_toc.class \
/=sega/dreamcast/gdrom/GdromCommandPacketInterface.class \
/=sega/dreamcast/gdrom/GdromProtocol.class \
/=Main.class \
/=example/DreamcastVideo2.class \
/=model/FacePTN.class \
/=model/ModelObject.class \
/=model/UntitledModel.class \
/=model/Vec2.class \
/=model/Vec3.class \
/=sega/dreamcast/holly/Background.class \
/=sega/dreamcast/holly/CoreBits.class \
/=sega/dreamcast/holly/Core.class \
/=sega/dreamcast/holly/ISPTSP.class \
/=sega/dreamcast/holly/RegionArray.class \
/=sega/dreamcast/holly/RegionArray_OPBSize.class \
/=sega/dreamcast/holly/TABits.class \
/=sega/dreamcast/holly/TAFIFOPolygonConverter.class \
/=sega/dreamcast/holly/TAGlobalParameter.class \
/=sega/dreamcast/holly/TAGlobalParameter_end_of_list.class \
/=sega/dreamcast/holly/TAGlobalParameter_polygon_type_0.class \
/=sega/dreamcast/holly/TAVertexParameter.class \
/=sega/dreamcast/holly/TAVertexParameter_polygon_type_3.class \
/=sega/dreamcast/holly/TextureMemoryAllocation.class \
/=java/lang/Math.class
example/GdromDirectoryRecordHandler.class \
example/GdromTest.class \
filesystem/iso9660/ByteParser.class \
filesystem/iso9660/DirectoryRecord.class \
filesystem/iso9660/ExtentReader.class \
filesystem/iso9660/PrimaryVolumeDescriptor.class \
filesystem/iso9660/VolumeParser.class \
java/io/PrintStream.class \
java/lang/DecimalDigits.class \
java/lang/Integer.class \
java/lang/Object.class \
java/lang/String.class \
java/lang/System.class \
java/misc/Memory.class \
jvm/internal/Loader.class \
sega/dreamcast/gdrom/G1IF.class \
sega/dreamcast/gdrom/GdromIF.class \
sega/dreamcast/gdrom/GdromBits.class \
sega/dreamcast/gdrom/Gdrom.class \
sega/dreamcast/gdrom/GdromExtentReader.class \
sega/dreamcast/gdrom/GdromCommandPacketFormat_cd_read.class \
sega/dreamcast/gdrom/GdromCommandPacketFormat.class \
sega/dreamcast/gdrom/GdromCommandPacketFormat_get_toc.class \
sega/dreamcast/gdrom/GdromCommandPacketInterface.class \
sega/dreamcast/gdrom/GdromProtocol.class \
Main.class \
example/DreamcastVideo2.class \
model/FacePTN.class \
model/ModelObject.class \
model/UntitledModel.class \
model/Vec2.class \
model/Vec3.class \
sega/dreamcast/holly/Background.class \
sega/dreamcast/holly/CoreBits.class \
sega/dreamcast/holly/Core.class \
sega/dreamcast/holly/VideoOutput.class \
sega/dreamcast/holly/VideoOutputMode.class \
sega/dreamcast/holly/ISPTSP.class \
sega/dreamcast/holly/RegionArray.class \
sega/dreamcast/holly/RegionArray_OPBSize.class \
sega/dreamcast/holly/TABits.class \
sega/dreamcast/holly/TAFIFOPolygonConverter.class \
sega/dreamcast/holly/TAGlobalParameter.class \
sega/dreamcast/holly/TAGlobalParameter_end_of_list.class \
sega/dreamcast/holly/TAGlobalParameter_polygon_type_0.class \
sega/dreamcast/holly/TAVertexParameter.class \
sega/dreamcast/holly/TAVertexParameter_polygon_type_3.class \
sega/dreamcast/holly/TextureMemoryAllocation.class \
java/lang/Math.class
main.elf: LDSCRIPT = $(LIB)/main.lds
main.elf: $(START_OBJ) $(OBJ) $(MAIN_OBJ) $(MAIN_DREAMCAST_OBJ) $(LIBGCC_OBJ) $(CLASS_PATH)

1
c/classpath.h
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@ -13,6 +13,7 @@
#include "java/lang/System.class.h"
#include "java/misc/Memory.class.h"
#include "sega/dreamcast/gdrom/G1IF.class.h"
#include "sega/dreamcast/gdrom/GdromIF.class.h"
#include "sega/dreamcast/gdrom/GdromBits.class.h"
#include "sega/dreamcast/gdrom/Gdrom.class.h"
#include "sega/dreamcast/gdrom/GdromExtentReader.class.h"

1
c/classpath.inc.c
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@ -13,6 +13,7 @@
(const uint8_t *)&_binary_java_lang_System_class_start,
(const uint8_t *)&_binary_java_misc_Memory_class_start,
(const uint8_t *)&_binary_sega_dreamcast_gdrom_G1IF_class_start,
(const uint8_t *)&_binary_sega_dreamcast_gdrom_GdromIF_class_start,
(const uint8_t *)&_binary_sega_dreamcast_gdrom_GdromBits_class_start,
(const uint8_t *)&_binary_sega_dreamcast_gdrom_Gdrom_class_start,
(const uint8_t *)&_binary_sega_dreamcast_gdrom_GdromExtentReader_class_start,

1
classpath.mk
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@ -14,6 +14,7 @@ CLASS_PATH = \
java/lang/System.class.o \
java/misc/Memory.class.o \
sega/dreamcast/gdrom/G1IF.class.o \
sega/dreamcast/gdrom/GdromIF.class.o \
sega/dreamcast/gdrom/GdromBits.class.o \
sega/dreamcast/gdrom/Gdrom.class.o \
sega/dreamcast/gdrom/GdromExtentReader.class.o \

6
example/DreamcastVideo2.java
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@ -12,6 +12,8 @@ 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.UntitledModel;
import model.Vec3;
@ -299,7 +301,8 @@ public class DreamcastVideo2 {
while ((CoreBits.spg_status__vsync(Memory.getU4(Holly.SPG_STATUS)) == 0));
while (!(CoreBits.spg_status__vsync(Memory.getU4(Holly.SPG_STATUS)) == 0));
Core.fb_r_enable();
VideoOutput.set_framebuffer_resolution(640, 480);
VideoOutput.set_mode(VideoOutputMode.vga);
Memory.putU4(Holly.FB_R_SOF1, TextureMemoryAllocation.framebuffer_start[0]);
}
@ -338,7 +341,6 @@ public class DreamcastVideo2 {
TextureMemoryAllocation.object_list_start[0]);
Core.init();
Core.fb_init(framebuffer_width, framebuffer_height);
boot_splash(ta_alloc, opb_size_total);

18
example/GdromTest.java
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@ -2,6 +2,7 @@ package example;
import sega.dreamcast.gdrom.GdromExtentReader;
import sega.dreamcast.gdrom.GdromProtocol;
import sega.dreamcast.gdrom.GdromIF;
import sega.dreamcast.gdrom.G1IF;
import java.misc.Memory;
import filesystem.iso9660.VolumeParser;
@ -25,19 +26,6 @@ class GdromDirectoryRecordHandler implements DirectoryRecordHandler {
this.addresses_ix = 0;
}
// transfer_length is in bytes
public static void startG1DMA(int start_address, int transfer_length) {
int gdstar = start_address & ~(0b111 << 29);
Memory.putU4(G1IF.GDAPRO, 0x8843407F);
Memory.putU4(G1IF.G1GDRC, 0x00001001);
Memory.putU4(G1IF.GDSTAR, gdstar);
Memory.putU4(G1IF.GDLEN, transfer_length);
Memory.putU4(G1IF.GDDIR, 1);
Memory.putU4(G1IF.GDEN, 1);
Memory.putU4(G1IF.GDST, 1);
}
public boolean isClassExt(DirectoryRecord dr) {
int length = dr.lengthOfFileIdentifier();
@ -76,9 +64,8 @@ class GdromDirectoryRecordHandler implements DirectoryRecordHandler {
int sectors = length >> 11; // division by 2048
GdromProtocol.cdReadDMA(extent + 150, sectors);
startG1DMA(address, length);
GdromIF.startG1DMA(address, length);
//System.out.println("wait gdst");
while ((Memory.getU4(G1IF.GDST) & 1) != 0);
System.out.println("transfer complete");
@ -101,7 +88,6 @@ class GdromTest {
GdromExtentReader reader = new GdromExtentReader();
VolumeParser parser = new VolumeParser(data_track_fad - 150, reader, handler);
System.out.println("::parser parse::");
parser.parse();
Loader.load(buffer_addresses, handler.addresses_ix);

3
generate_classpath.sh
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@ -86,6 +86,7 @@ declare -a boot_classes=(
java/lang/System.class
java/misc/Memory.class
sega/dreamcast/gdrom/G1IF.class
sega/dreamcast/gdrom/GdromIF.class
sega/dreamcast/gdrom/GdromBits.class
sega/dreamcast/gdrom/Gdrom.class
sega/dreamcast/gdrom/GdromExtentReader.class
@ -129,6 +130,8 @@ declare -a application_classes=(
sega/dreamcast/holly/Background.class
sega/dreamcast/holly/Core.class
sega/dreamcast/holly/CoreBits.class
sega/dreamcast/holly/VideoOutput.class
sega/dreamcast/holly/VideoOutputMode.class
sega/dreamcast/holly/ISPTSP.class
sega/dreamcast/holly/RegionArray.class
sega/dreamcast/holly/RegionArray_OPBSize.class

19
sega/dreamcast/gdrom/GdromIF.java Normal file
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@ -0,0 +1,19 @@
package sega.dreamcast.gdrom;
import sega.dreamcast.gdrom.G1IF;
import java.misc.Memory;
public class GdromIF {
// transfer_length is in bytes
public static void startG1DMA(int start_address, int transfer_length) {
int gdstar = start_address & ~(0b111 << 29);
Memory.putU4(G1IF.GDAPRO, 0x8843407F);
Memory.putU4(G1IF.G1GDRC, 0x00001001);
Memory.putU4(G1IF.GDSTAR, gdstar);
Memory.putU4(G1IF.GDLEN, transfer_length);
Memory.putU4(G1IF.GDDIR, 1);
Memory.putU4(G1IF.GDEN, 1);
Memory.putU4(G1IF.GDST, 1);
}
}

46
sega/dreamcast/holly/Core.java
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@ -43,52 +43,6 @@ public class Core {
Memory.putU4(Holly.SOFTRESET, 0);
}
public static void fb_init(int x_size, int y_size) {
int y_coeff = CoreBits.y_coeff__coefficient_1(0x80)
| CoreBits.y_coeff__coefficient_0_2(0x40);
// in 6.10 fixed point; 0x0400 is 1x vertical scale
int scaler_ctl = CoreBits.scaler_ctl__vertical_scale_factor(0x0400);
int fb_burstctrl = CoreBits.fb_burstctrl__wr_burst(0x09)
| CoreBits.fb_burstctrl__vid_lat(0x3f)
| CoreBits.fb_burstctrl__vid_burst(0x39);
int fb_x_clip = CoreBits.fb_x_clip__fb_x_clip_max(x_size - 1)
| CoreBits.fb_x_clip__fb_x_clip_min(0);
int fb_y_clip = CoreBits.fb_y_clip__fb_y_clip_max(y_size - 1)
| CoreBits.fb_y_clip__fb_y_clip_min(0);
int fb_r_size = CoreBits.fb_r_size__fb_modulus(1)
| CoreBits.fb_r_size__fb_y_size(y_size - 3)
| CoreBits.fb_r_size__fb_x_size((x_size * 16) / 32 - 1);
int fb_w_ctrl = CoreBits.fb_w_ctrl__fb_dither
| CoreBits.fb_w_ctrl__fb_packmode__565_rgb_16bit;
Memory.putU4(Holly.Y_COEFF, y_coeff);
Memory.putU4(Holly.SCALER_CTL, scaler_ctl);
Memory.putU4(Holly.FB_BURSTCTRL, fb_burstctrl);
Memory.putU4(Holly.FB_X_CLIP, fb_x_clip);
Memory.putU4(Holly.FB_Y_CLIP, fb_y_clip);
Memory.putU4(Holly.FB_R_SIZE, fb_r_size);
Memory.putU4(Holly.FB_W_CTRL, fb_w_ctrl);
}
public static void fb_r_disable() {
Memory.putU4(Holly.FB_R_CTRL, 0);
}
public static void fb_r_enable() {
int fb_r_ctrl =
CoreBits.fb_r_ctrl__vclk_div__pclk_vclk_1
| CoreBits.fb_r_ctrl__fb_depth__565_rgb_16bit
| CoreBits.fb_r_ctrl__fb_enable;
Memory.putU4(Holly.FB_R_CTRL, fb_r_ctrl);
}
public static void start_render(int region_array_start,
int isp_tsp_parameters_start,
int background_start,

51
sega/dreamcast/holly/VideoOutput.java Normal file
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@ -0,0 +1,51 @@
package sega.dreamcast.holly;
import java.misc.Memory;
public class VideoOutput {
public static void set_framebuffer_resolution(int x_size, int y_size)
{
Memory.putU4(Holly.Y_COEFF, CoreBits.y_coeff__coefficient_1(0x80)
| CoreBits.y_coeff__coefficient_0_2(0x40));
// in 6.10 fixed point; 0x0400 is 1x vertical scale
Memory.putU4(Holly.SCALER_CTL, CoreBits.scaler_ctl__vertical_scale_factor(0x0400));
Memory.putU4(Holly.FB_BURSTCTRL, CoreBits.fb_burstctrl__wr_burst(0x09)
| CoreBits.fb_burstctrl__vid_lat(0x3f)
| CoreBits.fb_burstctrl__vid_burst(0x39));
Memory.putU4(Holly.FB_X_CLIP, CoreBits.fb_x_clip__fb_x_clip_max(x_size - 1)
| CoreBits.fb_x_clip__fb_x_clip_min(0));
Memory.putU4(Holly.FB_Y_CLIP, CoreBits.fb_y_clip__fb_y_clip_max(y_size - 1)
| CoreBits.fb_y_clip__fb_y_clip_min(0));
Memory.putU4(Holly.FB_R_SIZE, CoreBits.fb_r_size__fb_modulus(1)
| CoreBits.fb_r_size__fb_y_size(y_size - 3)
| CoreBits.fb_r_size__fb_x_size((x_size * 16) / 32 - 1));
}
public static void set_mode(VideoOutputMode mode)
{
Memory.putU4(Holly.SPG_LOAD, mode.spg_load);
Memory.putU4(Holly.SPG_HBLANK, mode.spg_hblank);
Memory.putU4(Holly.SPG_VBLANK, mode.spg_vblank);
Memory.putU4(Holly.SPG_WIDTH, mode.spg_width);
Memory.putU4(Holly.SPG_CONTROL, mode.spg_control);
Memory.putU4(Holly.VO_STARTX, mode.vo_startx);
Memory.putU4(Holly.VO_STARTY, mode.vo_starty);
Memory.putU4(Holly.VO_CONTROL, mode.vo_control);
Memory.putU4(Holly.SPG_HBLANK_INT, mode.spg_hblank_int);
Memory.putU4(Holly.SPG_VBLANK_INT, mode.spg_vblank_int);
Memory.putU4(Holly.FB_W_CTRL, CoreBits.fb_w_ctrl__fb_dither
| CoreBits.fb_w_ctrl__fb_packmode__565_rgb_16bit);
Memory.putU4(Holly.FB_R_CTRL, mode.fb_r_ctrl
| CoreBits.fb_r_ctrl__fb_depth__565_rgb_16bit
| CoreBits.fb_r_ctrl__fb_enable);
}
}

40
sega/dreamcast/holly/VideoOutputMode.java Normal file
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@ -0,0 +1,40 @@
package sega.dreamcast.holly;
public class VideoOutputMode {
int fb_r_ctrl;
int spg_load;
int spg_hblank;
int spg_vblank;
int spg_width;
int spg_control;
int vo_startx;
int vo_starty;
int vo_control;
int spg_hblank_int;
int spg_vblank_int;
public static VideoOutputMode vga;
static {
vga = new VideoOutputMode();
vga.fb_r_ctrl = CoreBits.fb_r_ctrl__vclk_div__pclk_vclk_1;
vga.spg_load = CoreBits.spg_load__vcount(0x20c)
| CoreBits.spg_load__hcount(0x359);
vga.spg_hblank = CoreBits.spg_hblank__hbend(0x07e)
| CoreBits.spg_hblank__hbstart(0x345);
vga.spg_vblank = CoreBits.spg_vblank__vbend(0x028)
| CoreBits.spg_vblank__vbstart(0x208);
vga.spg_width = CoreBits.spg_width__eqwidth(0x00f)
| CoreBits.spg_width__bpwidth(0x319)
| CoreBits.spg_width__vswidth(0x3)
| CoreBits.spg_width__hswidth(0x3f);
vga.spg_control = CoreBits.spg_control__sync_direction__output;
vga.vo_startx = CoreBits.vo_startx__horizontal_start_position(0x0a8);
vga.vo_starty = CoreBits.vo_starty__vertical_start_position_on_field_2(0x028)
| CoreBits.vo_starty__vertical_start_position_on_field_1(0x028);
vga.vo_control = CoreBits.vo_control__pclk_delay(0x16);
vga.spg_hblank_int = CoreBits.spg_hblank_int__line_comp_val(0x345);
vga.spg_vblank_int = CoreBits.spg_vblank_int__vblank_out_interrupt_line_number(0x015)
| CoreBits.spg_vblank_int__vblank_in_interrupt_line_number(0x208);
}
}