From 729ffba90fe2a8f2f2a3ebcbb87afba044b02047 Mon Sep 17 00:00:00 2001
From: Zack Buhman <zack@buhman.org>
Date: Wed, 25 Jun 2025 12:43:43 -0500
Subject: [PATCH] add texture_memory_alloc9

---
 example/custom_resolution.cpp     | 14 ++++++++++----
 holly/texture_memory_alloc9.hpp   | 32 +++++++++++++++++++++++++++++++
 tools/texture_memory_allocator.py |  6 +++---
 3 files changed, 45 insertions(+), 7 deletions(-)
 create mode 100644 holly/texture_memory_alloc9.hpp

diff --git a/example/custom_resolution.cpp b/example/custom_resolution.cpp
index 790e45a..344eb8d 100644
--- a/example/custom_resolution.cpp
+++ b/example/custom_resolution.cpp
@@ -275,14 +275,20 @@ void main()
   ta_polygon_converter_transfer(writer.buf, writer.offset);
   ta_wait_opaque_list();
 
-  int framebuffer_size = framebuffer_width * framebuffer_height * bytes_per_pixel;
-  int framebuffer_address = (0x10000000 - (framebuffer_size / 2));
+  //int framebuffer_size = framebuffer_width * framebuffer_height * bytes_per_pixel;
+  //int framebuffer_address = (0x10000000 - (framebuffer_size / 2));
   //int framebuffer_address = texture_memory_alloc.framebuffer[1].start;
+  //holly.FB_W_SOF1 = framebuffer_address & 0x1ffffff;
+  //holly.STARTRENDER = 1;
+
+  int framebuffer_address = texture_memory_alloc.framebuffer[0].start;
+  test_pattern();
 
-  holly.FB_W_SOF1 = framebuffer_address & 0x1ffffff;
-  holly.STARTRENDER = 1;
   holly.FB_R_SOF1 = framebuffer_address & 0x0ffffff;
 
   printf("fb_w_sof1 0x%08x\n", holly.FB_W_SOF1);
   printf("fb_r_sof1 0x%08x\n", holly.FB_R_SOF1);
+
+  while (1) {
+  }
 }
diff --git a/holly/texture_memory_alloc9.hpp b/holly/texture_memory_alloc9.hpp
new file mode 100644
index 0000000..08b0dcc
--- /dev/null
+++ b/holly/texture_memory_alloc9.hpp
@@ -0,0 +1,32 @@
+#pragma once
+
+#include <cstdint>
+#include <cstddef>
+
+struct texture_memory_alloc__start_end {
+  uint32_t start;
+  uint32_t end;
+};
+
+struct texture_memory_alloc {
+  struct texture_memory_alloc__start_end isp_tsp_parameters;
+  struct texture_memory_alloc__start_end object_list;
+  struct texture_memory_alloc__start_end region_array;
+  struct texture_memory_alloc__start_end framebuffer[3];
+  struct texture_memory_alloc__start_end background[2];
+  struct texture_memory_alloc__start_end texture;
+};
+
+constexpr texture_memory_alloc texture_memory_alloc = {
+  // 32-bit addresses     start      end          start      end
+  .isp_tsp_parameters = {0x000000, 0x21bfe0},
+  .object_list = {0x400000, 0x495fe0},
+  .region_array = {0x21c000, 0x22c000},
+  .framebuffer = {{0x496000, 0x53ec00},
+                  {0x22c000, 0x2d4c00},
+                  {0x53ec00, 0x5e7800}},
+  .background = {{0x2d4c00, 0x2d4c20},
+                 {0x5e7800, 0x5e7820}},
+  // 64-bit addresses
+  .texture = {0x5a9840, 0x800000}
+};
diff --git a/tools/texture_memory_allocator.py b/tools/texture_memory_allocator.py
index 7f8787b..3739bbf 100644
--- a/tools/texture_memory_allocator.py
+++ b/tools/texture_memory_allocator.py
@@ -40,10 +40,10 @@ allocations = {
     "object_list"        : (0x09_6000  , 32 ),
 
     "region_array"       : (0x01_0000  , 0  ),
-    "framebuffer0"       : (0x09_6000  , 0  ),
+    "framebuffer0"       : (0x0a_8c00  , 0  ),
 
-    "framebuffer1"       : (0x09_6000  , 0  ),
-    "framebuffer2"       : (0x09_6000  , 0  ),
+    "framebuffer1"       : (0x0a_8c00  , 0  ),
+    "framebuffer2"       : (0x0a_8c00  , 0  ),
 
     "background0"        : (0x00_0040  , 32 ),
     "background1"        : (0x00_0040  , 32 ),