From a58f2ac13b4045dccd2fef9cad48da9f2ed0d23a Mon Sep 17 00:00:00 2001
From: lewa_j <lewa.j20@gmail.com>
Date: Sat, 10 Jan 2026 02:43:55 +0300
Subject: [PATCH] ref: dx2: render textures

---
 ref/dx2/r_context.c | 15 +++++++++++++++
 ref/dx2/r_image.c   |  2 ++
 ref/dx2/r_local.h   |  2 ++
 3 files changed, 19 insertions(+)

diff --git a/ref/dx2/r_context.c b/ref/dx2/r_context.c
index 6754eff9..b5871d03 100644
--- a/ref/dx2/r_context.c
+++ b/ref/dx2/r_context.c
@@ -478,6 +478,16 @@ static void D3D_PutProcessVertices(void** dst, DWORD flags, WORD start, WORD cou
 	*dst = (void*)(((D3DPROCESSVERTICES*)*dst) + 1);
 }
 
+static void D3D_PutRenderState(void** dst, D3DRENDERSTATETYPE type, DWORD arg)
+{
+	D3DSTATE* s = (D3DSTATE*)*dst;
+
+	s->drstRenderStateType = type;
+	s->dwArg[0] = arg;
+	*dst = (void*)(((D3DSTATE*)*dst) + 1);
+
+}
+
 static void R_DrawStretchPic( float x, float y, float w, float h, float s1, float t1, float s2, float t2, int texnum )
 {
 	if (texnum <= 0 || texnum >= MAX_TEXTURES)
@@ -540,6 +550,11 @@ static void R_DrawStretchPic( float x, float y, float w, float h, float s1, floa
 		if (!(((ULONG)cur) & 7)) {
 			D3D_PutInstruction(&cur, D3DOP_TRIANGLE, sizeof(D3DTRIANGLE), 0);
 		}
+
+		D3D_PutInstruction(&cur, D3DOP_STATERENDER, sizeof(D3DSTATE), 2);
+		D3D_PutRenderState(&cur, D3DRENDERSTATE_TEXTUREHANDLE, tex->d3dHandle);
+		D3D_PutRenderState(&cur, D3DRENDERSTATE_TEXTUREMAPBLEND, D3DTBLEND_DECAL);
+
 		D3D_PutInstruction(&cur, D3DOP_TRIANGLE, sizeof(D3DTRIANGLE), 2);
 
 		D3DTRIANGLE* tris = (D3DTRIANGLE*)cur;
diff --git a/ref/dx2/r_image.c b/ref/dx2/r_image.c
index 860f7bc6..43086eca 100644
--- a/ref/dx2/r_image.c
+++ b/ref/dx2/r_image.c
@@ -518,6 +518,8 @@ static qboolean GL_UploadTexture(dx_texture_t *tex, rgbdata_t *pic)
 #endif
 
 	DXCheck(IDirectDraw_CreateSurface(dxc.pdd, &ddsd, &tex->dds, NULL));
+	DXCheck(IDirectDrawSurface_QueryInterface(tex->dds, &IID_IDirect3DTexture, (void**)&tex->d3dTex));
+	DXCheck(IDirect3DTexture_GetHandle(tex->d3dTex, dxc.pd3dd, &tex->d3dHandle));
 
 	tex->fogParams[0] = pic->fogParams[0];
 	tex->fogParams[1] = pic->fogParams[1];
diff --git a/ref/dx2/r_local.h b/ref/dx2/r_local.h
index de61f898..d2ff19c9 100644
--- a/ref/dx2/r_local.h
+++ b/ref/dx2/r_local.h
@@ -58,6 +58,8 @@ typedef struct dx_texture_s
 
 #endif
 	IDirectDrawSurface *dds;
+	IDirect3DTexture *d3dTex;
+	D3DTEXTUREHANDLE d3dHandle;
 	uint		hashValue;
 	struct dx_texture_s *nextHash;
 } dx_texture_t;