From d442813de8005f0a973d9d9e9a7ed20610e0f019 Mon Sep 17 00:00:00 2001
From: "BADIM-PC\\Vadim" <grigoruk@gmail.com>
Date: Wed, 21 Feb 2018 14:29:32 +0300
Subject: [PATCH] no message

---
 data/shaders/crt-lottes.frag |  4 +++-
 src/system.c                 | 22 +++++++++++++++++++++-
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/data/shaders/crt-lottes.frag b/data/shaders/crt-lottes.frag
index 892c03a..570126b 100644
--- a/data/shaders/crt-lottes.frag
+++ b/data/shaders/crt-lottes.frag
@@ -2,11 +2,13 @@ in vec2 texCoord;
 out vec4 fragColor;
 
 uniform sampler2D tex;
+uniform float trg_w;
+uniform float trg_h;
 
 // Emulated input resolution.
 vec2 res=vec2(256.0,144.0);
 
-vec2 trg=res*4.0;
+vec2 trg=vec2(trg_w, trg_h);
 
 // Hardness of scanline.
 //  -8.0 = soft
diff --git a/src/system.c b/src/system.c
index 5196f9d..fdb0998 100644
--- a/src/system.c
+++ b/src/system.c
@@ -206,6 +206,17 @@ static void initTouchGamepad()
 }
 
 static void calcTextureRect(SDL_Rect* rect)
+{
+	s32 w, h;
+	SDL_GetWindowSize(platform.window, &w, &h);
+
+	rect->x = OFFSET_LEFT * w / TIC80_FULLWIDTH;
+	rect->y = OFFSET_TOP * h / TIC80_FULLHEIGHT;
+	rect->w = TIC80_WIDTH * w / TIC80_FULLWIDTH;
+	rect->h = TIC80_HEIGHT * h / TIC80_FULLHEIGHT;
+}
+
+static void calcTextureRect2(SDL_Rect* rect)
 {
 	SDL_GetWindowSize(platform.window, &rect->w, &rect->h);
 
@@ -1170,6 +1181,7 @@ static s32 start(s32 argc, char **argv, const char* folder)
 
 	u32 crt_shader = 0;
 	load_shader_program(&crt_shader, "data/shaders/common.vert", "data/shaders/crt-lottes.frag");
+
 	{
 		u64 nextTick = SDL_GetPerformanceCounter();
 		const u64 Delta = SDL_GetPerformanceFrequency() / TIC_FRAMERATE;
@@ -1192,7 +1204,15 @@ static s32 start(s32 argc, char **argv, const char* folder)
 
 					GPU_UpdateImageBytes(texture, NULL, (const u8*)tic->screen, TIC80_FULLWIDTH * sizeof(u32));
 
-					blitGpuTexture(screen, texture);
+					{
+						s32 w, h;
+						SDL_GetWindowSize(platform.window, &w, &h);
+
+						GPU_SetUniformf(GPU_GetUniformLocation(crt_shader, "trg_w"), w);
+						GPU_SetUniformf(GPU_GetUniformLocation(crt_shader, "trg_h"), h);
+
+						GPU_BlitScale(texture, NULL, screen, 0, 0, (float)w / TIC80_FULLWIDTH, (float)h / TIC80_FULLHEIGHT);
+					}
 				}
 
 				GPU_Flip(screen);