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JavaCubeMemory: slightly incorrect pipelined rendering

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This commit is contained in:
Zack Buhman 2025-01-21 22:23:02 -06:00
parent 8f49f69e7e
commit 44fbfc7f29
2 changed files with 60 additions and 24 deletions
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68
classes/example/JavaCubeMemory.java
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@ -53,7 +53,7 @@ public class JavaCubeMemory {
| ISPTSP.tsp_instruction_word__texture_v_size__1024 | ISPTSP.tsp_instruction_word__texture_v_size__1024
| ISPTSP.tsp_instruction_word__use_alpha; | ISPTSP.tsp_instruction_word__use_alpha;
static final int texture_address = TextureMemoryAllocation.texture_regions[1][0] + 512; static final int texture_address = TextureMemoryAllocation.texture_regions[0][0] + 512;
static final int texture_control_word = ISPTSP.texture_control_word__pixel_format__4444 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__scan_order__non_twiddled
| ISPTSP.texture_control_word__texture_address(texture_address / 8); | ISPTSP.texture_control_word__texture_address(texture_address / 8);
@ -142,20 +142,13 @@ public class JavaCubeMemory {
} }
public static void transfer_textures() { public static void transfer_textures() {
int texture = MemoryMap.texture_memory64 + TextureMemoryAllocation.texture_regions[1][0] + 512; int texture = MemoryMap.texture_memory64 + TextureMemoryAllocation.texture_regions[0][0] + 512;
int length = 512 * 512 * 2 * 2 / 4; int length = 512 * 512 * 2 * 2 / 4;
int address = 0xac400000; int address = 0xac400000;
for (int i = 0; i < length; i++) { for (int i = 0; i < length; i++) {
int value = Memory.getU4(address); int value = Memory.getU4(address);
Memory.putU4(texture, value); 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; address += 4;
texture += 4; texture += 4;
} }
@ -163,6 +156,11 @@ public class JavaCubeMemory {
public static void main() { public static void main() {
System.out.println("main1"); System.out.println("main1");
System.out.println("transfer_textures");
transfer_textures();
System.out.println("transfer_textures2");
int ta_alloc = int ta_alloc =
TABits.ta_alloc_ctrl__opb_mode__increasing_addresses TABits.ta_alloc_ctrl__opb_mode__increasing_addresses
| TABits.ta_alloc_ctrl__pt_opb__no_list | TABits.ta_alloc_ctrl__pt_opb__no_list
@ -205,41 +203,67 @@ public class JavaCubeMemory {
Core.init(); Core.init();
System.out.println("transfer_textures");
transfer_textures();
System.out.println("transfer_textures2");
VideoOutput.set_framebuffer_resolution(640, 480); VideoOutput.set_framebuffer_resolution(640, 480);
VideoOutput.set_mode(VideoOutputMode.vga); VideoOutput.set_mode(VideoOutputMode.vga);
int core = 0; int core = 0;
int ta = 0; int ta = 0;
System.out.println("main"); System.out.println("main");
int framebuffer_tiles_width = framebuffer_width / 32;
int framebuffer_tiles_height = framebuffer_height / 32;
// prime
for (int i = 0; i < 2; i++) {
TAFIFOPolygonConverter.init(TextureMemoryAllocation.isp_tsp_parameters_start[i],
TextureMemoryAllocation.isp_tsp_parameters_end[i],
TextureMemoryAllocation.object_list_start[i],
TextureMemoryAllocation.object_list_end[i],
opb_size_total,
ta_alloc,
framebuffer_tiles_width,
framebuffer_tiles_height);
transfer_cube_scene();
if (i == 0)
TAFIFOPolygonConverter.wait_translucent_list();
}
for (int i = 0; i < 2; i++) {
Core.start_render(TextureMemoryAllocation.region_array_start[core],
TextureMemoryAllocation.isp_tsp_parameters_start[core],
TextureMemoryAllocation.background_start[1],
TextureMemoryAllocation.framebuffer_start[i],
framebuffer_width);
if (i == 0)
Core.wait_end_of_render_tsp();
}
while (true) { while (true) {
ta = (core + 1) & 1;
// unpipelined render loop // unpipelined render loop
TAFIFOPolygonConverter.wait_translucent_list();
TAFIFOPolygonConverter.init(TextureMemoryAllocation.isp_tsp_parameters_start[ta], TAFIFOPolygonConverter.init(TextureMemoryAllocation.isp_tsp_parameters_start[ta],
TextureMemoryAllocation.isp_tsp_parameters_end[ta], TextureMemoryAllocation.isp_tsp_parameters_end[ta],
TextureMemoryAllocation.object_list_start[ta], TextureMemoryAllocation.object_list_start[ta],
TextureMemoryAllocation.object_list_end[ta], TextureMemoryAllocation.object_list_end[ta],
opb_size_total, opb_size_total,
ta_alloc, ta_alloc,
framebuffer_width / 32, framebuffer_tiles_width,
framebuffer_height / 32); framebuffer_tiles_height);
transfer_cube_scene(); transfer_cube_scene();
TAFIFOPolygonConverter.wait_translucent_list();
Core.start_render(TextureMemoryAllocation.region_array_start[ta], Core.wait_end_of_render_tsp();
TextureMemoryAllocation.isp_tsp_parameters_start[ta], Core.start_render(TextureMemoryAllocation.region_array_start[core],
TextureMemoryAllocation.background_start[1], TextureMemoryAllocation.isp_tsp_parameters_start[core],
TextureMemoryAllocation.background_start[core],
TextureMemoryAllocation.framebuffer_start[core], TextureMemoryAllocation.framebuffer_start[core],
framebuffer_width); framebuffer_width);
Core.wait_end_of_render_tsp();
while (!(CoreBits.spg_status__vsync(Memory.getU4(Holly.SPG_STATUS)) != 0)); 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)); while ((CoreBits.spg_status__vsync(Memory.getU4(Holly.SPG_STATUS)) != 0));
Memory.putU4(Holly.FB_R_SOF1, TextureMemoryAllocation.framebuffer_start[ta]);
core = (core + 1) % 1; core = ta;
theta += Math.DEGREES_TO_RADIANS; theta += Math.DEGREES_TO_RADIANS;
} }

16
classes/sega/dreamcast/holly/TextureMemoryAllocation.java
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@ -2,6 +2,7 @@ package sega.dreamcast.holly;
public class TextureMemoryAllocation { public class TextureMemoryAllocation {
/* frame A frame B */ /* frame A frame B */
/*
public static final int[] isp_tsp_parameters_start = { 0x000000, 0x080000 }; public static final int[] isp_tsp_parameters_start = { 0x000000, 0x080000 };
public static final int[] isp_tsp_parameters_end = { 0x07ffc0, 0x0fffc0 }; public static final int[] isp_tsp_parameters_end = { 0x07ffc0, 0x0fffc0 };
public static final int[] background_start = { 0x07ffc0, 0x0fffc0 }; public static final int[] background_start = { 0x07ffc0, 0x0fffc0 };
@ -12,10 +13,21 @@ public class TextureMemoryAllocation {
public static final int[] region_array_end = { 0x210000, 0x220000 }; public static final int[] region_array_end = { 0x210000, 0x220000 };
public static final int[] framebuffer_start = { 0x220000, 0x2c8c00 }; // 720 x 480 @ 16bpp public static final int[] framebuffer_start = { 0x220000, 0x2c8c00 }; // 720 x 480 @ 16bpp
public static final int[] framebuffer_end = { 0x2c8c00, 0x371800 }; // 720 x 480 @ 16bpp public static final int[] framebuffer_end = { 0x2c8c00, 0x371800 }; // 720 x 480 @ 16bpp
*/
public static final int[] isp_tsp_parameters_start = { 0x000000, 0x400000 };
public static final int[] isp_tsp_parameters_end = { 0x0fffc0, 0x4fffc0 };
public static final int[] background_start = { 0x0fffc0, 0x4fffc0 };
public static final int[] background_end = { 0x100000, 0x500000 };
public static final int[] object_list_start = { 0x100000, 0x500000 };
public static final int[] object_list_end = { 0x200000 - 0x20, 0x600000 - 0x20 };
public static final int[] region_array_start = { 0x296000, 0x696000 };
public static final int[] region_array_end = { 0x2a6000, 0x6a0000 };
public static final int[] framebuffer_start = { 0x200000, 0x600000 }; // 640 x 480 @ 16bpp
public static final int[] framebuffer_end = { 0x296000, 0x696000 }; // 640 x 480 @ 16bpp
public static final int[][] texture_regions = { public static final int[][] texture_regions = {
/* start end */ /* start end */
{ 0x200000, 0x400000 }, { 0x54c000, 0x400000 },
{ 0x600000, 0x800000 }, { 0x54c000, 0x800000 },
}; };
} }