109 Commits

Author SHA1 Message Date
9f90e5e3f6 example: add sheik_vq 2024-09-13 13:33:31 -05:00
32b8f85a4f example: add cube_vq_rectangular 2024-09-13 05:35:43 -05:00
03403c95aa example: add sheik 2024-09-13 03:55:02 -05:00
8cead9614f add pipelined rendering examples
This adds a new texture memory allocation header,
texture_memory_alloc2.hpp, with two of each memory area.

This also adds two new examples, "cube_textured" and "cube_vq" that
demonstrate using the new texture_memory_alloc2 to perform CORE
rendering, geometry transformation, and tile acceleration
concurrently.
2024-09-09 04:20:40 -05:00
90fe17ac5c example: add tetrahedron 2024-05-31 21:41:00 -05:00
dd5969dc1f example/: add vq and sierpinski 2024-05-25 20:42:59 -05:00
40b7c9d800 example: add maple_mouse
This also updates maple_analog.
2024-05-24 18:18:29 -05:00
ea51bca518 example/maple_storage: initial example 2024-05-23 11:47:19 -05:00
be8f06e486 example: add maple_storage example 2024-05-21 19:09:48 -05:00
5c192ffd2e text_editor: initial gap buffer implementation 2024-05-19 14:20:27 -05:00
bcaa9789cf texture_memory_alloc: rework texture memory allocation
The previous texture_memory_alloc.hpp was written based on an
incorrect understanding of the "32-bit" and "64-bit" texture memory
address mapping.

The primary motivation is to rearrange the texture memory address map
so that "textures" (64-bit access) do not overlap with 32-bit
accesses, such as REGION_BASE or PARAM_BASE.
2024-05-12 17:06:00 +08:00
c8e84be5d2 common.lds: define vbr alignment
This also creates an example of a VBR+0x100 function in interrupt.cpp
2024-04-15 18:22:28 +08:00
d912278afd serial_transfer: self-relocate to the end of system memory
The serial_transfer loader, as long as the target program voluntarily
terminates itself at some point, is able to load multiple programs
consecutively without requiring a physical power cycle to reload the
transfer program from CD.

The current example.mk juggles between two different "memory layouts",
one for "burn to a physical CD" and another for "load via serial
cable". Because the serial_transfer program now relocates itself to
the end of system memory, this means the 0x8c010000 area is now usable
by programs that are loaded by serial_transfer.
2024-03-13 20:56:37 +08:00
f8dc9f1250 example: add video_output example
The intent of this example is to change video output modes in response
to swapping the cable type.
2024-03-09 17:15:36 +08:00
c0e10fe8f1 vga: delete
This is replaced with the (slightly cleaner) holly/video_output.
2024-03-08 20:46:55 +08:00
0ff0aa5346 example/aica_gdrom: play audio read from gdrom
This still has issues, notably:

Despite the first 16kbytes of audio being loaded prior to starting the
AICA ARM7 CPU, the GDROM drive returns "busy" for the following
~48kbytes. This in turn causes the AICA to play audio from
uninitialized memory.

There is also a separate issue where the timing of changing the start
address of the audio channel causes a faint popping sound throughout
the audio playback.

I should do more timing experiments with the GDROM drive, and improve
this example to play the audio with fewer artifacts.
2024-03-04 16:40:25 +08:00
0aea1d0db2 example/aica_gdrom: initial
aica_gdrom currently copies from system ram to AICA ram, 128 bytes at
a time, synchronized with the AICA sample timer.
2024-03-01 19:38:47 +08:00
57721c485f example/arm: rename to channel 2024-02-29 17:32:54 +08:00
3338b611c1 aica: initial working example
This plays 10 seconds of PCM audio via the AICA ARM CPU.
2024-02-29 16:51:25 +08:00
10d17d3c98 example: add gdrom_iso9660
This combines my iso9660 parsing code, with all of the prior gdrom packet
interface / command code.

The example, on real Dreamcast hardware, displays the first 2048 bytes [1] of every
file in the root directory on the serial console.

[1] or the size of the file, whichever is smaller
2024-02-27 00:28:39 +08:00
e4c2a047fa example: add gdrom_test
This successfully reads the first 17 sectors of the first data track
of a CD.
2024-02-25 13:27:39 +08:00
38b4dda6ab software_ta: gouraud shading experiment 2024-02-24 09:31:21 +08:00
59708cc3cf examples: add software_ta 2024-02-23 23:47:43 +08:00
4e71e002bf examples: add dump_object_list 2024-02-23 18:14:24 +08:00
511d99563d maple_bus_commands: zero-sized structs should be zero sized
From the GCC manual.

> GCC permits a C structure to have no members:

struct empty {
};

> The structure has size zero. In C++, empty structures are part of the
> language. G++ treats empty structures as if they had a single member of type
> char.

I was not aware of the different behavior in C++.

This fixes every maple example--most were broken for multiple reasons, including
this one.

This also enables SH4 caching. This includes linking code/data into the P1
area (previously this was not the case).

The maple examples (which indeed involve much use of DMA) require much work to
successfully work with the operand and copyback caches. The vibration example
currently is the most complete, though I should consider more on how I want to
structure maple response operand cache invalidation more generally.
2024-02-02 22:05:10 +08:00
b17e075138 add verite font
There are still texture sampling issues that I don't understand. Until
I properly understand this, using (bitmap) fonts that have
power-of-two dimensions seem to produce "acceptable but incorrect"
results.
2024-02-02 09:19:09 +08:00
f400fe6412 example: suzanne_profile: incomplete
This has turned in to an experiment related to texture sampling behavior on the
Dreamcast.
2024-02-02 08:18:18 +08:00
0381d356bb example: add clipping_textured 2024-01-27 12:20:15 +08:00
4842ab0e4f example: add clipping2
Unlike the previous clipping example, this clipping example preserves
surface normals.
2024-01-27 10:20:46 +08:00
6836790205 add viewing_system
This is inspirted by the book "3D Computer Graphics" by Alan Watt.
2024-01-06 18:43:57 +08:00
c9b57abf81 example: add clipping 2024-01-06 11:32:41 +08:00
1f6a29f379 example: update several examples 2024-01-03 23:32:37 +08:00
0b6c650ebd common.mk: add headless csv build rule 2024-01-01 00:58:10 +08:00
e8aea009c6 example: add heart
I originally planned to make this a render-to-texture demo, but this
is fairly interesting by itself.
2023-12-31 20:19:41 +08:00
b6457bf687 modifier_volume_with_two_volumes: add simple controller input
The plane can be moved around with the analog stick and analog
triggers of the controller connected to port 1.
2023-12-30 23:08:13 +08:00
8e534e9e25 example: modifier_volume_with_two_volumes: textured 2023-12-30 22:22:50 +08:00
549254615e example: modifier_volume_with_two_volumes 2023-12-30 21:50:54 +08:00
5db6272ceb example: add modifier volume
This creates a modifier volume with a cube that intersects a plane.
2023-12-30 15:11:22 +08:00
4bb04a0362 example: add maple_analog
Also adds the incomplete modifier_volume example.

This also adds vec2 for UV coordinates, and obj_to_cpp has been
modified to parse vertex texture coordinates from obj files.
2023-12-30 10:53:39 +08:00
6a17031c6f example: add wiffle_attenuation
This example is an experiment with light attenuation.
2023-12-26 22:46:52 +08:00
e340c3ca02 example: add icosphere 2023-12-24 17:48:20 +08:00
befedb9d38 example: add lighted cube
This also copy-pastes all of the math headers I originally wrote in
saturn-examples.
2023-12-24 16:24:27 +08:00
ffbfcd9fd5 incomplete 1bpp font experiment 2023-12-23 18:30:21 +08:00
3b7e1eaef8 example: implement font_outline
This still needs to be cleaned up, particularly to properly pass the
texture size around--there are a few unnecessary '128x256' magic
numbers scattered in the code.
2023-12-22 00:03:52 +08:00
7e03eee3ed font_bitmap: use 4bpp palette 2023-12-20 22:39:47 +08:00
e2a6406a05 example: add macaw_cube_render_to_texture 2023-12-18 02:10:52 +08:00
5c2b45b70d example: refresh
All examples work again, except macaw_multipass--this never worked
entirely, so I'm not worried about fixing it at the moment.
2023-12-17 22:45:52 +08:00
e4303dbcf1 cube: rename to macaw_cube 2023-12-17 22:20:56 +08:00
59f8c1b3ff cube: a perspective cube 2023-12-17 17:04:34 +08:00
2f7f0a6bdf example: add maple vibrator example 2023-12-17 12:57:06 +08:00