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https://opencores.org/ocsvn/wf3d/wf3d/trunk
Subversion Repositories wf3d
[/] [wf3d/] [trunk/] [clib/] [hw_dep/] [de0/] [mp_hwdep.c] - Rev 8
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//======================================================================= // Project Monophony // Wire-Frame 3D Graphics Accelerator IP Core // // File: // mp_hwdep.c // // Abstract: // Hardware dependent function // // Author: // Kenji Ishimaru (info.wf3d@gmail.com) // //====================================================================== // // Copyright (c) 2015, Kenji Ishimaru // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are met: // // -Redistributions of source code must retain the above copyright notice, // this list of conditions and the following disclaimer. // -Redistributions in binary form must reproduce the above copyright notice, // this list of conditions and the following disclaimer in the documentation // and/or other materials provided with the distribution. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, // THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, // EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. // // Revision History #include "mp_hwdep.h" volatile int fb_front = 0; void buffer_clear(unsigned int c,int bank) { unsigned int i; unsigned int a,ae; if (bank==1) a = FRAME_BUFFER_1; else a = FRAME_BUFFER_0; ae = a+0x4b000; // 640x480x8 for (i = a; i < ae; i += 4 ) { (*(volatile unsigned int *)i) = c; } } void video_init() { FB0_OFFSET = FRAME_BUFFER_0; FB1_OFFSET = FRAME_BUFFER_1; FRONT_BUFFER = 0; VIDEO_INT_MASK = 3; COLOR_MODE = 2; // 8bit color fb_front = 0; // BANK0 is displayed // clear screen printf("COLOR MODE %d\n",COLOR_MODE); // Video Start VIDEO_START = 0x00000001; } void video_swap() { int video_status; //VIDEO_INT_CLEAR = 0; video_status = VIDEO_STATUS; while (!(video_status & 0x1)) { video_status = VIDEO_STATUS; } if (fb_front == 0) fb_front = 1; else fb_front = 0; FRONT_BUFFER = fb_front; } void hw_init() { }
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