From 83fa10f4590287e35566c00050a05df022eadc46 Mon Sep 17 00:00:00 2001
From: Maximilian Mader <max@bastelstu.be>
Date: Fri, 4 Oct 2019 01:40:50 +0200
Subject: [PATCH] [GTK3] Implement sprite viewer

---
 gtk3/main.c                 | 49 +++++++++++++++++++++++++++++++++++++
 gtk3/resources/ui/window.ui |  9 ++++---
 2 files changed, 55 insertions(+), 3 deletions(-)

diff --git a/gtk3/main.c b/gtk3/main.c
index b5ce8b3..add97d3 100644
--- a/gtk3/main.c
+++ b/gtk3/main.c
@@ -37,6 +37,10 @@ static uint32_t tileset_buffer[tileset_buffer_length] = {0};
 #define tilemap_buffer_length 256 * 256 * 4
 static uint32_t tilemap_buffer[tilemap_buffer_length] = {0};
 
+static GB_oam_info_t oamInfo[40];
+static uint16_t oamCount;
+static uint8_t oamHeight;
+
 static uint8_t pressed_buttons;
 
 // List of GActions for the `app` prefix
@@ -1064,7 +1068,52 @@ static void vblank(GB_gameboy_t *gb) {
 			};
 		}
 		else if (g_strcmp0("vram_viewer_sprites", active) == 0) {
+			GtkListStore *store = builder_get(GTK_LIST_STORE, "sprite_list_store");
+			GtkTreeIter iter;
 
+			gtk_list_store_clear(store);
+			gtk_tree_model_get_iter_first(GTK_TREE_MODEL(store), &iter);
+
+			oamCount = GB_get_oam_info(gb, oamInfo, &oamHeight);
+
+			for (unsigned row = 0; row < oamCount; ++row) {
+				GdkPixbuf *pixbuf = gdk_pixbuf_new_from_bytes(
+					g_bytes_new(oamInfo[row].image, 128 * sizeof(uint32_t)),
+					GDK_COLORSPACE_RGB, true, 8, 8, oamHeight, 8 * sizeof(uint32_t)
+				);
+				
+				GdkPixbuf *dest = gdk_pixbuf_new(GDK_COLORSPACE_RGB, true, 8, 8 * 2, oamHeight * 2);
+
+				gdk_pixbuf_scale(pixbuf, dest,
+					0, 0, 8 * 2, oamHeight * 2,
+					0, 0, 2.0, 2.0,
+					GDK_INTERP_NEAREST
+				);
+
+				g_object_unref(pixbuf);
+
+				gtk_list_store_insert_with_values(store, &iter, -1,
+					0, dest,
+					1, itoa(oamInfo[row].x - 8),
+					2, itoa(oamInfo[row].y - 16),
+					3, g_strdup_printf("$%02x", oamInfo[row].tile),
+					4, g_strdup_printf("$%04x", 0x8000 + oamInfo[row].tile * 0x10),
+					5, g_strdup_printf("$%04x", oamInfo[row].oam_addr),
+					6, GB_is_cgb(gb)
+						? g_strdup_printf("%c%c%c%d%d",
+							oamInfo[row].flags & 0x80? 'P' : '-',
+							oamInfo[row].flags & 0x40? 'Y' : '-',
+							oamInfo[row].flags & 0x20? 'X' : '-',
+							oamInfo[row].flags & 0x08? 1 : 0,
+							oamInfo[row].flags & 0x07)
+						: g_strdup_printf("%c%c%c%d",
+							oamInfo[row].flags & 0x80? 'P' : '-',
+							oamInfo[row].flags & 0x40? 'Y' : '-',
+							oamInfo[row].flags & 0x20? 'X' : '-',
+							oamInfo[row].flags & 0x10? 1 : 0),
+					-1
+				);
+			}
 		}
 		else if (g_strcmp0("vram_viewer_palettes", active) == 0) {
 
diff --git a/gtk3/resources/ui/window.ui b/gtk3/resources/ui/window.ui
index 35045f8..816a3f4 100644
--- a/gtk3/resources/ui/window.ui
+++ b/gtk3/resources/ui/window.ui
@@ -1441,7 +1441,10 @@ Maximilian Mader https://github.com/max-m</property>
                   <object class="GtkTreeViewColumn">
                     <property name="min_width">32</property>
                     <child>
-                      <object class="GtkCellRendererText"/>
+                      <object class="GtkCellRendererPixbuf"/>
+                      <attributes>
+                        <attribute name="pixbuf">0</attribute>
+                      </attributes>
                     </child>
                   </object>
                 </child>
@@ -1495,7 +1498,7 @@ Maximilian Mader https://github.com/max-m</property>
                     <child>
                       <object class="GtkCellRendererText"/>
                       <attributes>
-                        <attribute name="text">4</attribute>
+                        <attribute name="text">5</attribute>
                       </attributes>
                     </child>
                   </object>
@@ -1506,7 +1509,7 @@ Maximilian Mader https://github.com/max-m</property>
                     <child>
                       <object class="GtkCellRendererText"/>
                       <attributes>
-                        <attribute name="text">5</attribute>
+                        <attribute name="text">6</attribute>
                       </attributes>
                     </child>
                   </object>