From f64330d50ebb2240b2ec72ecf152cf10a44c9ed1 Mon Sep 17 00:00:00 2001
From: somewhatlurker <52014015+somewhatlurker@users.noreply.github.com>
Date: Sun, 9 Aug 2020 00:18:15 +1000
Subject: [PATCH] Novidia: smaller texture uploads when using glTexSubImage

---
 source-code/source/plugins/Novidia/src/dllmain.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/source-code/source/plugins/Novidia/src/dllmain.cpp b/source-code/source/plugins/Novidia/src/dllmain.cpp
index 155c04d..249c644 100644
--- a/source-code/source/plugins/Novidia/src/dllmain.cpp
+++ b/source-code/source/plugins/Novidia/src/dllmain.cpp
@@ -7,20 +7,27 @@
 // two versions because apparently TexSubImage can cause major stuttering
 void h_uploadModelTransformBuf_TexImage(DWORD* a1, int a2)
 {
+	if (a2 > 0x100)
+		return;
+
 	uploadModelTransformBuf(a1, a2);
 	
 	glActiveTexture(GL_TEXTURE8);
 	glBindTexture(GL_TEXTURE_1D, buf_tex);
+	// can't change tex size without making shader sad :(
 	glTexImage1D(GL_TEXTURE_1D, 0, GL_RGBA32F, 0x3000 / sizeof(float) / 4, 0, tex_upload_format, GL_FLOAT, *(float**)0x1411a3330);
 	glActiveTexture(GL_TEXTURE0);
 }
 void h_uploadModelTransformBuf_TexSubImage(DWORD* a1, int a2)
 {
+	if (a2 > 0x100)
+		return;
+
 	uploadModelTransformBuf(a1, a2);
 
 	glActiveTexture(GL_TEXTURE8);
 	glBindTexture(GL_TEXTURE_1D, buf_tex);
-	glTexSubImage1D(GL_TEXTURE_1D, 0, 0, 0x3000 / sizeof(float) / 4, tex_upload_format, GL_FLOAT, *(float**)0x1411a3330);
+	glTexSubImage1D(GL_TEXTURE_1D, 0, 0, a2 * 3, tex_upload_format, GL_FLOAT, *(float**)0x1411a3330);
 	glActiveTexture(GL_TEXTURE0);
 }