From 134d85bce6bc8e36beacae1628defccf0ff6eb1f Mon Sep 17 00:00:00 2001
From: fallenoak <git@fallenoak.me>
Date: Sat, 8 Apr 2023 23:10:53 -0500
Subject: [PATCH] feat(console): add background drawing for console

---
 src/console/Screen.cpp | 60 +++++++++++++++++++++++++++++++++++++++++-
 src/console/Types.hpp  | 17 ++++++++++++
 2 files changed, 76 insertions(+), 1 deletion(-)
 create mode 100644 src/console/Types.hpp

diff --git a/src/console/Screen.cpp b/src/console/Screen.cpp
index dd93622..31fe6aa 100644
--- a/src/console/Screen.cpp
+++ b/src/console/Screen.cpp
@@ -1,7 +1,12 @@
 #include "console/Screen.hpp"
+#include "console/Types.hpp"
+#include "gx/Buffer.hpp"
 #include "gx/Coordinate.hpp"
+#include "gx/Device.hpp"
+#include "gx/Draw.hpp"
 #include "gx/Font.hpp"
 #include "gx/Gx.hpp"
+#include "gx/RenderState.hpp"
 #include "gx/Screen.hpp"
 #include <storm/String.hpp>
 #include <tempest/Rect.hpp>
@@ -11,15 +16,68 @@ static float s_caretpixwidth;
 static float s_caretpixheight;
 static float s_fontHeight = 0.02f;
 static char s_fontName[STORM_MAX_PATH];
+static int32_t s_highlightState;
 static HLAYER s_layerBackground;
 static HLAYER s_layerText;
 static RECTF s_rect = { 0.0f, 1.0f, 1.0f, 1.0f };
 static HTEXTFONT s_textFont;
 
-void PaintBackground(void* param, const RECTF* rect, const RECTF* visible, float elapsedSec) {
+static CImVector s_colorArray[] = {
+    { 0xFF, 0xFF, 0xFF, 0xFF }, // DEFAULT_COLOR
+    { 0xFF, 0xFF, 0xFF, 0xFF }, // INPUT_COLOR
+    { 0x80, 0x80, 0x80, 0xFF }, // ECHO_COLOR
+    { 0x00, 0x00, 0xFF, 0xFF }, // ERROR_COLOR
+    { 0x00, 0xFF, 0xFF, 0xFF }, // WARNING_COLOR
+    { 0xFF, 0xFF, 0xFF, 0xFF }, // GLOBAL_COLOR
+    { 0xFF, 0xFF, 0xFF, 0xFF }, // ADMIN_COLOR
+    { 0xFF, 0xFF, 0xFF, 0x80 }, // HIGHLIGHT_COLOR
+    { 0x00, 0x00, 0x00, 0x80 }, // BACKGROUND_COLOR
+};
+
+void DrawBackground() {
+    uint16_t indices[] = {
+        0, 1, 2, 3
+    };
+
+    C3Vector position[] = {
+        { s_rect.left,  s_rect.bottom,  0.0f },
+        { s_rect.right, s_rect.bottom,  0.0f },
+        { s_rect.left,  s_rect.top,     0.0f },
+        { s_rect.right, s_rect.top,     0.0f }
+    };
+
+    GxRsPush();
+
+    GxRsSet(GxRs_Lighting, 0);
+    GxRsSet(GxRs_Fog, 0);
+    GxRsSet(GxRs_DepthTest, 0);
+    GxRsSet(GxRs_DepthWrite, 0);
+    GxRsSet(GxRs_Culling, 0);
+    GxRsSet(GxRs_PolygonOffset, 0.0f);
+    GxRsSet(GxRs_BlendingMode, GxBlend_Alpha);
+    GxRsSet(GxRs_AlphaRef, CGxDevice::s_alphaRef[GxBlend_Alpha]);
+
+    GxPrimLockVertexPtrs(4, position, sizeof(C3Vector), nullptr, 0, &s_colorArray[BACKGROUND_COLOR], 0, nullptr, 0, nullptr, 0, nullptr, 0);
+    GxDrawLockedElements(GxPrim_TriangleStrip, 4, indices);
+    GxPrimUnlockVertexPtrs();
+
+    GxRsPop();
+}
+
+void DrawHighLight() {
     // TODO
 }
 
+void PaintBackground(void* param, const RECTF* rect, const RECTF* visible, float elapsedSec) {
+    if (s_rect.bottom < 1.0f) {
+        DrawBackground();
+
+        if (s_highlightState) {
+            DrawHighLight();
+        }
+    }
+}
+
 void PaintText(void* param, const RECTF* rect, const RECTF* visible, float elapsedSec) {
     // TODO
 }
diff --git a/src/console/Types.hpp b/src/console/Types.hpp
new file mode 100644
index 0000000..0099be2
--- /dev/null
+++ b/src/console/Types.hpp
@@ -0,0 +1,17 @@
+#ifndef CONSOLE_TYPES_HPP
+#define CONSOLE_TYPES_HPP
+
+enum COLOR_T {
+    DEFAULT_COLOR,
+    INPUT_COLOR,
+    ECHO_COLOR,
+    ERROR_COLOR,
+    WARNING_COLOR,
+    GLOBAL_COLOR,
+    ADMIN_COLOR,
+    HIGHLIGHT_COLOR,
+    BACKGROUND_COLOR,
+    NUM_COLORTYPES,
+};
+
+#endif