diff options
Diffstat (limited to 'student_files_2015/student_files_2015/prj2/catapult_proj/vga_mouse/vga_mouse_square.c')
| -rw-r--r-- | student_files_2015/student_files_2015/prj2/catapult_proj/vga_mouse/vga_mouse_square.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/student_files_2015/student_files_2015/prj2/catapult_proj/vga_mouse/vga_mouse_square.c b/student_files_2015/student_files_2015/prj2/catapult_proj/vga_mouse/vga_mouse_square.c new file mode 100644 index 0000000..7e11f9d --- /dev/null +++ b/student_files_2015/student_files_2015/prj2/catapult_proj/vga_mouse/vga_mouse_square.c @@ -0,0 +1,94 @@ +//////////////////////////////////////////////////////////////////////////////// +// _____ _ _ _____ _ _ +// |_ _| (_) | | / ____| | | | +// | | _ __ ___ _ __ ___ _ __ _ __ _| | | | ___ | | | ___ __ _ ___ +// | | | '_ ` _ \| '_ \ / _ \ '__| |/ _` | | | | / _ \| | |/ _ \/ _` |/ _ \ +// _| |_| | | | | | |_) | __/ | | | (_| | | | |___| (_) | | | __/ (_| | __/ +// |_____|_| |_| |_| .__/ \___|_| |_|\__,_|_| \_____\___/|_|_|\___|\__, |\___| +// | | __/ | +// |_| |___/ +// _ _ +// | | | | +// | | ___ _ __ __| | ___ _ __ +// | | / _ \| '_ \ / _` |/ _ \| '_ \ +// | |___| (_) | | | | (_| | (_) | | | | +// |______\___/|_| |_|\__,_|\___/|_| |_| +// +//////////////////////////////////////////////////////////////////////////////// +// File: vga_mouse_square.cpp +// Description: video to vga with mouse pointer - real-time processing +// By: rad09 +//////////////////////////////////////////////////////////////////////////////// +// this hardware block receives the VGA scanning coordinates, +// the mouse coordinates and then replaces the mouse pointer +// with a different value for the pixel +//////////////////////////////////////////////////////////////////////////////// +// Catapult Project options +// Constraint Editor: +// Frequency: 27 MHz +// Top design: vga_mouse_square +// clk>reset sync: disable; reset async: enable; enable: enable +// Architecture Constraint: +// core>main: enable pipeline + loop can be merged +//////////////////////////////////////////////////////////////////////////////// + + + +#include "stdio.h" +#include "ac_int.h" + +#define COLOR_WL 10 +#define PIXEL_WL (3*COLOR_WL) + +#define COORD_WL 10 + +#pragma hls_design top +void vga_mouse_square(ac_int<(COORD_WL+COORD_WL), false> * vga_xy, ac_int<(COORD_WL+COORD_WL), false> * mouse_xy, ac_int<(8), false> cursor_size, + ac_int<PIXEL_WL, false> * video_in, ac_int<PIXEL_WL, false> * video_out) +{ + ac_int<10, false> i_red, i_green, i_blue; // current pixel + ac_int<10, false> o_red, o_green, o_blue; // output pixel + ac_int<10, false> mouse_x, mouse_y, vga_x, vga_y; // mouse and screen coordinates + + +/* --extract the 3 color components from the 30 bit signal-- + the 2 blocks are identical - you can shift and mask the desired bits or "slice" the signal <length>(location) + + i_red = *video_in >> 20; + i_green = (*video_in >> 10) & (ac_int<10>)1023; + i_blue = *video_in & ((ac_int<10>)1023); +*/ + i_red = (*video_in).slc<COLOR_WL>(20); + i_green = (*video_in).slc<COLOR_WL>(10); + i_blue = (*video_in).slc<COLOR_WL>(0); + + // extract mouse X-Y coordinates + mouse_x = (*mouse_xy).slc<COORD_WL>(0); + mouse_y = (*mouse_xy).slc<COORD_WL>(10); + // extract VGA pixel X-Y coordinates + vga_x = (*vga_xy).slc<COORD_WL>(0); + vga_y = (*vga_xy).slc<COORD_WL>(10); + + + + /// something here... + + + /// show pixel + if ((vga_x >= mouse_x - cursor_size) && (vga_x <= mouse_x + cursor_size) && (vga_y >= mouse_y - cursor_size) && (vga_y <= mouse_y + cursor_size)){ + // if it is inside the mouse square + o_red = 0; + o_green = i_green; + o_blue = 0; + } + else { + // if it is outside the mouse square + o_red = i_red; + o_green = i_green; + o_blue = i_blue; + } + + // combine the 3 color components into 1 signal only + *video_out = ((((ac_int<PIXEL_WL, false>)o_red) << 20) | (((ac_int<PIXEL_WL, false>)o_green) << 10) | (ac_int<PIXEL_WL, false>)o_blue); +} + |