276 lines
8.0 KiB
C
276 lines
8.0 KiB
C
/*
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* This file is part of Luma3DS
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* Copyright (C) 2016-2019 Aurora Wright, TuxSH
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
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* * Requiring preservation of specified reasonable legal notices or
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* author attributions in that material or in the Appropriate Legal
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* Notices displayed by works containing it.
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* * Prohibiting misrepresentation of the origin of that material,
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* or requiring that modified versions of such material be marked in
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* reasonable ways as different from the original version.
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*/
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#include <3ds.h>
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#include <stdarg.h>
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#include "fmt.h"
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#include "draw.h"
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#include "font.h"
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#include "memory.h"
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#include "menu.h"
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#include "utils.h"
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u8 framebufferCache[FB_BOTTOM_SIZE];
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static u32 gpuSavedFramebufferAddr1, gpuSavedFramebufferAddr2, gpuSavedFramebufferFormat, gpuSavedFramebufferStride;
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static RecursiveLock lock;
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void Draw_Lock(void)
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{
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static bool lockInitialized = false;
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if(!lockInitialized)
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{
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RecursiveLock_Init(&lock);
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lockInitialized = true;
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}
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RecursiveLock_Lock(&lock);
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}
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void Draw_Unlock(void)
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{
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RecursiveLock_Unlock(&lock);
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}
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void Draw_DrawCharacter(u32 posX, u32 posY, u32 color, char character)
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{
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volatile u16 *const fb = (volatile u16 *const)FB_BOTTOM_VRAM_ADDR;
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s32 y;
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for(y = 0; y < 10; y++)
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{
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char charPos = font[character * 10 + y];
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s32 x;
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for(x = 6; x >= 1; x--)
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{
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u32 screenPos = (posX * SCREEN_BOT_HEIGHT * 2 + (SCREEN_BOT_HEIGHT - y - posY - 1) * 2) + (5 - x) * 2 * SCREEN_BOT_HEIGHT;
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u32 pixelColor = ((charPos >> x) & 1) ? color : COLOR_BLACK;
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fb[screenPos / 2] = pixelColor;
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}
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}
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}
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u32 Draw_DrawString(u32 posX, u32 posY, u32 color, const char *string)
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{
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for(u32 i = 0, line_i = 0; i < ((u32) strlen(string)); i++)
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{
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if(string[i] == '\n')
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{
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posY += SPACING_Y;
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line_i = 0;
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continue;
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}
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else if(line_i >= (SCREEN_BOT_WIDTH - posX) / SPACING_X)
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{
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// Make sure we never get out of the screen.
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posY += SPACING_Y;
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line_i = 0;
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if(string[i] == ' ')
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continue; // Spaces at the start look weird
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}
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Draw_DrawCharacter(posX + line_i * SPACING_X, posY, color, string[i]);
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line_i++;
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}
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return posY;
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}
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u32 Draw_DrawFormattedString(u32 posX, u32 posY, u32 color, const char *fmt, ...)
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{
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char buf[DRAW_MAX_FORMATTED_STRING_SIZE + 1];
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va_list args;
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va_start(args, fmt);
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vsprintf(buf, fmt, args);
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va_end(args);
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return Draw_DrawString(posX, posY, color, buf);
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}
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void Draw_FillFramebuffer(u32 value)
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{
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memset(FB_BOTTOM_VRAM_ADDR, value, FB_BOTTOM_SIZE);
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}
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void Draw_ClearFramebuffer(void)
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{
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Draw_FillFramebuffer(0);
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}
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void Draw_SetupFramebuffer(void)
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{
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while((GPU_PSC0_CNT | GPU_PSC1_CNT | GPU_TRANSFER_CNT | GPU_CMDLIST_CNT) & 1);
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svcFlushEntireDataCache();
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memcpy(framebufferCache, FB_BOTTOM_VRAM_ADDR, FB_BOTTOM_SIZE);
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gpuSavedFramebufferAddr1 = GPU_FB_BOTTOM_ADDR_1;
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gpuSavedFramebufferAddr2 = GPU_FB_BOTTOM_ADDR_2;
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gpuSavedFramebufferFormat = GPU_FB_BOTTOM_FMT;
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gpuSavedFramebufferStride = GPU_FB_BOTTOM_STRIDE;
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GPU_FB_BOTTOM_ADDR_1 = GPU_FB_BOTTOM_ADDR_2 = FB_BOTTOM_VRAM_PA;
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GPU_FB_BOTTOM_FMT = (GPU_FB_BOTTOM_FMT & ~7) | 2;
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GPU_FB_BOTTOM_STRIDE = 240 * 2;
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Draw_FlushFramebuffer();
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}
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void Draw_RestoreFramebuffer(void)
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{
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memcpy(FB_BOTTOM_VRAM_ADDR, framebufferCache, FB_BOTTOM_SIZE);
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GPU_FB_BOTTOM_ADDR_1 = gpuSavedFramebufferAddr1;
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GPU_FB_BOTTOM_ADDR_2 = gpuSavedFramebufferAddr2;
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GPU_FB_BOTTOM_FMT = gpuSavedFramebufferFormat;
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GPU_FB_BOTTOM_STRIDE = gpuSavedFramebufferStride;
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Draw_FlushFramebuffer();
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}
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void Draw_FlushFramebuffer(void)
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{
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svcFlushProcessDataCache(CUR_PROCESS_HANDLE, FB_BOTTOM_VRAM_ADDR, FB_BOTTOM_SIZE);
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}
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u32 Draw_GetCurrentFramebufferAddress(bool top, bool left)
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{
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if(GPU_FB_BOTTOM_SEL & 1)
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{
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if(left)
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return top ? GPU_FB_TOP_LEFT_ADDR_2 : GPU_FB_BOTTOM_ADDR_2;
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else
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return top ? GPU_FB_TOP_RIGHT_ADDR_2 : GPU_FB_BOTTOM_ADDR_2;
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}
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else
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{
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if(left)
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return top ? GPU_FB_TOP_LEFT_ADDR_1 : GPU_FB_BOTTOM_ADDR_1;
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else
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return top ? GPU_FB_TOP_RIGHT_ADDR_1 : GPU_FB_BOTTOM_ADDR_1;
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}
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}
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static inline void Draw_WriteUnaligned(u8 *dst, u32 tmp, u32 size)
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{
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memcpy(dst, &tmp, size);
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}
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void Draw_CreateBitmapHeader(u8 *dst, u32 width, u32 heigth)
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{
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static const u8 bmpHeaderTemplate[54] = {
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0x42, 0x4D, 0xCC, 0xCC, 0xCC, 0xCC, 0x00, 0x00, 0x00, 0x00, 0x36, 0x00, 0x00, 0x00, 0x28, 0x00,
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0x00, 0x00, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0xCC, 0x01, 0x00, 0x18, 0x00, 0x00, 0x00,
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0x00, 0x00, 0xCC, 0xCC, 0xCC, 0xCC, 0x12, 0x0B, 0x00, 0x00, 0x12, 0x0B, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00
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};
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memcpy(dst, bmpHeaderTemplate, 54);
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Draw_WriteUnaligned(dst + 2, 54 + 3 * width * heigth, 4);
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Draw_WriteUnaligned(dst + 0x12, width, 4);
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Draw_WriteUnaligned(dst + 0x16, heigth, 4);
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Draw_WriteUnaligned(dst + 0x22, 3 * width * heigth, 4);
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}
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static inline void Draw_ConvertPixelToBGR8(u8 *dst, const u8 *src, GSPGPU_FramebufferFormats srcFormat)
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{
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u8 red, green, blue;
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switch(srcFormat)
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{
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case GSP_RGBA8_OES:
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{
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u32 px = *(u32 *)src;
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dst[0] = (px >> 8) & 0xFF;
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dst[1] = (px >> 16) & 0xFF;
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dst[2] = (px >> 24) & 0xFF;
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break;
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}
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case GSP_BGR8_OES:
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{
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dst[2] = src[2];
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dst[1] = src[1];
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dst[0] = src[0];
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break;
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}
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case GSP_RGB565_OES:
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{
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// thanks neobrain
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u16 px = *(u16 *)src;
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blue = px & 0x1F;
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green = (px >> 5) & 0x3F;
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red = (px >> 11) & 0x1F;
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dst[0] = (blue << 3) | (blue >> 2);
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dst[1] = (green << 2) | (green >> 4);
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dst[2] = (red << 3) | (red >> 2);
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break;
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}
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case GSP_RGB5_A1_OES:
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{
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u16 px = *(u16 *)src;
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blue = (px >> 1) & 0x1F;
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green = (px >> 6) & 0x1F;
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red = (px >> 11) & 0x1F;
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dst[0] = (blue << 3) | (blue >> 2);
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dst[1] = (green << 3) | (green >> 2);
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dst[2] = (red << 3) | (red >> 2);
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break;
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}
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case GSP_RGBA4_OES:
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{
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u16 px = *(u32 *)src;
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blue = (px >> 4) & 0xF;
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green = (px >> 8) & 0xF;
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red = (px >> 12) & 0xF;
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dst[0] = (blue << 4) | (blue >> 0);
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dst[1] = (green << 4) | (green >> 0);
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dst[2] = (red << 4) | (red >> 0);
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break;
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}
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default: break;
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}
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}
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void Draw_ConvertFrameBufferLine(u8 *line, bool top, bool left, u32 y)
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{
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GSPGPU_FramebufferFormats fmt = top ? (GSPGPU_FramebufferFormats)(GPU_FB_TOP_FMT & 7) : (GSPGPU_FramebufferFormats)(GPU_FB_BOTTOM_FMT & 7);
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u32 width = top ? 400 : 320;
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u8 formatSizes[] = { 4, 3, 2, 2, 2 };
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u32 stride = top ? GPU_FB_TOP_STRIDE : GPU_FB_BOTTOM_STRIDE;
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u32 pa = Draw_GetCurrentFramebufferAddress(top, left);
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u8 *addr = (u8 *)PA_PTR(pa);
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for(u32 x = 0; x < width; x++)
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Draw_ConvertPixelToBGR8(line + x * 3 , addr + x * stride + y * formatSizes[(u8)fmt], fmt);
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}
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