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/*
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 * QEMU VGA Emulator templates
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 *
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 * Copyright (c) 2003 Fabrice Bellard
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to deal
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 * in the Software without restriction, including without limitation the rights
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * copies of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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 * THE SOFTWARE.
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 */
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25
#if DEPTH == 8
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#define BPP 1
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#define PIXEL_TYPE uint8_t
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#elif DEPTH == 15 || DEPTH == 16
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#define BPP 2
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#define PIXEL_TYPE uint16_t
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#elif DEPTH == 32
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#define BPP 4
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#define PIXEL_TYPE uint32_t
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#else
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#error unsupport depth
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#endif
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#ifdef BGR_FORMAT
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#define PIXEL_NAME glue(DEPTH, bgr)
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#else
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#define PIXEL_NAME DEPTH
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#endif /* BGR_FORMAT */
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#if DEPTH != 15 && !defined(BGR_FORMAT)
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static inline void glue(vga_draw_glyph_line_, DEPTH)(uint8_t *d,
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                                                     uint32_t font_data,
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                                                     uint32_t xorcol,
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                                                     uint32_t bgcol)
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{
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#if BPP == 1
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        ((uint32_t *)d)[0] = (dmask16[(font_data >> 4)] & xorcol) ^ bgcol;
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        ((uint32_t *)d)[1] = (dmask16[(font_data >> 0) & 0xf] & xorcol) ^ bgcol;
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#elif BPP == 2
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        ((uint32_t *)d)[0] = (dmask4[(font_data >> 6)] & xorcol) ^ bgcol;
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        ((uint32_t *)d)[1] = (dmask4[(font_data >> 4) & 3] & xorcol) ^ bgcol;
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        ((uint32_t *)d)[2] = (dmask4[(font_data >> 2) & 3] & xorcol) ^ bgcol;
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        ((uint32_t *)d)[3] = (dmask4[(font_data >> 0) & 3] & xorcol) ^ bgcol;
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#else
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        ((uint32_t *)d)[0] = (-((font_data >> 7)) & xorcol) ^ bgcol;
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        ((uint32_t *)d)[1] = (-((font_data >> 6) & 1) & xorcol) ^ bgcol;
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        ((uint32_t *)d)[2] = (-((font_data >> 5) & 1) & xorcol) ^ bgcol;
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        ((uint32_t *)d)[3] = (-((font_data >> 4) & 1) & xorcol) ^ bgcol;
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        ((uint32_t *)d)[4] = (-((font_data >> 3) & 1) & xorcol) ^ bgcol;
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        ((uint32_t *)d)[5] = (-((font_data >> 2) & 1) & xorcol) ^ bgcol;
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        ((uint32_t *)d)[6] = (-((font_data >> 1) & 1) & xorcol) ^ bgcol;
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        ((uint32_t *)d)[7] = (-((font_data >> 0) & 1) & xorcol) ^ bgcol;
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#endif
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}
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static void glue(vga_draw_glyph8_, DEPTH)(uint8_t *d, int linesize,
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                                          const uint8_t *font_ptr, int h,
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                                          uint32_t fgcol, uint32_t bgcol)
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{
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    uint32_t font_data, xorcol;
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    xorcol = bgcol ^ fgcol;
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    do {
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        font_data = font_ptr[0];
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        glue(vga_draw_glyph_line_, DEPTH)(d, font_data, xorcol, bgcol);
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        font_ptr += 4;
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        d += linesize;
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    } while (--h);
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}
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static void glue(vga_draw_glyph16_, DEPTH)(uint8_t *d, int linesize,
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                                          const uint8_t *font_ptr, int h,
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                                          uint32_t fgcol, uint32_t bgcol)
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{
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    uint32_t font_data, xorcol;
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    xorcol = bgcol ^ fgcol;
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    do {
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        font_data = font_ptr[0];
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        glue(vga_draw_glyph_line_, DEPTH)(d,
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                                          expand4to8[font_data >> 4],
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                                          xorcol, bgcol);
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        glue(vga_draw_glyph_line_, DEPTH)(d + 8 * BPP,
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                                          expand4to8[font_data & 0x0f],
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                                          xorcol, bgcol);
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        font_ptr += 4;
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        d += linesize;
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    } while (--h);
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}
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static void glue(vga_draw_glyph9_, DEPTH)(uint8_t *d, int linesize,
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                                          const uint8_t *font_ptr, int h,
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                                          uint32_t fgcol, uint32_t bgcol, int dup9)
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{
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    uint32_t font_data, xorcol, v;
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    xorcol = bgcol ^ fgcol;
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    do {
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        font_data = font_ptr[0];
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#if BPP == 1
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        cpu_to_32wu((uint32_t *)d, (dmask16[(font_data >> 4)] & xorcol) ^ bgcol);
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        v = (dmask16[(font_data >> 0) & 0xf] & xorcol) ^ bgcol;
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        cpu_to_32wu(((uint32_t *)d)+1, v);
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        if (dup9)
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            ((uint8_t *)d)[8] = v >> (24 * (1 - BIG));
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        else
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            ((uint8_t *)d)[8] = bgcol;
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#elif BPP == 2
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        cpu_to_32wu(((uint32_t *)d)+0, (dmask4[(font_data >> 6)] & xorcol) ^ bgcol);
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        cpu_to_32wu(((uint32_t *)d)+1, (dmask4[(font_data >> 4) & 3] & xorcol) ^ bgcol);
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        cpu_to_32wu(((uint32_t *)d)+2, (dmask4[(font_data >> 2) & 3] & xorcol) ^ bgcol);
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        v = (dmask4[(font_data >> 0) & 3] & xorcol) ^ bgcol;
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        cpu_to_32wu(((uint32_t *)d)+3, v);
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        if (dup9)
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            ((uint16_t *)d)[8] = v >> (16 * (1 - BIG));
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        else
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            ((uint16_t *)d)[8] = bgcol;
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#else
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        ((uint32_t *)d)[0] = (-((font_data >> 7)) & xorcol) ^ bgcol;
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        ((uint32_t *)d)[1] = (-((font_data >> 6) & 1) & xorcol) ^ bgcol;
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        ((uint32_t *)d)[2] = (-((font_data >> 5) & 1) & xorcol) ^ bgcol;
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        ((uint32_t *)d)[3] = (-((font_data >> 4) & 1) & xorcol) ^ bgcol;
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        ((uint32_t *)d)[4] = (-((font_data >> 3) & 1) & xorcol) ^ bgcol;
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        ((uint32_t *)d)[5] = (-((font_data >> 2) & 1) & xorcol) ^ bgcol;
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        ((uint32_t *)d)[6] = (-((font_data >> 1) & 1) & xorcol) ^ bgcol;
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        v = (-((font_data >> 0) & 1) & xorcol) ^ bgcol;
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        ((uint32_t *)d)[7] = v;
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        if (dup9)
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            ((uint32_t *)d)[8] = v;
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        else
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            ((uint32_t *)d)[8] = bgcol;
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#endif
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        font_ptr += 4;
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        d += linesize;
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    } while (--h);
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}
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/*
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 * 4 color mode
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 */
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static void glue(vga_draw_line2_, DEPTH)(VGACommonState *s1, uint8_t *d,
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                                         const uint8_t *s, int width)
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{
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    uint32_t plane_mask, *palette, data, v;
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    int x;
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    palette = s1->last_palette;
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    plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
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    width >>= 3;
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    for(x = 0; x < width; x++) {
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        data = ((uint32_t *)s)[0];
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        data &= plane_mask;
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        v = expand2[GET_PLANE(data, 0)];
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        v |= expand2[GET_PLANE(data, 2)] << 2;
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        ((PIXEL_TYPE *)d)[0] = palette[v >> 12];
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        ((PIXEL_TYPE *)d)[1] = palette[(v >> 8) & 0xf];
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        ((PIXEL_TYPE *)d)[2] = palette[(v >> 4) & 0xf];
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        ((PIXEL_TYPE *)d)[3] = palette[(v >> 0) & 0xf];
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        v = expand2[GET_PLANE(data, 1)];
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        v |= expand2[GET_PLANE(data, 3)] << 2;
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        ((PIXEL_TYPE *)d)[4] = palette[v >> 12];
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        ((PIXEL_TYPE *)d)[5] = palette[(v >> 8) & 0xf];
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        ((PIXEL_TYPE *)d)[6] = palette[(v >> 4) & 0xf];
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        ((PIXEL_TYPE *)d)[7] = palette[(v >> 0) & 0xf];
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        d += BPP * 8;
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        s += 4;
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    }
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}
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#if BPP == 1
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#define PUT_PIXEL2(d, n, v) ((uint16_t *)d)[(n)] = (v)
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#elif BPP == 2
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#define PUT_PIXEL2(d, n, v) ((uint32_t *)d)[(n)] = (v)
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#else
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#define PUT_PIXEL2(d, n, v) \
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((uint32_t *)d)[2*(n)] = ((uint32_t *)d)[2*(n)+1] = (v)
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#endif
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/*
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 * 4 color mode, dup2 horizontal
198
 */
199
static void glue(vga_draw_line2d2_, DEPTH)(VGACommonState *s1, uint8_t *d,
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                                           const uint8_t *s, int width)
201
{
202
    uint32_t plane_mask, *palette, data, v;
203
    int x;
204

    
205
    palette = s1->last_palette;
206
    plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
207
    width >>= 3;
208
    for(x = 0; x < width; x++) {
209
        data = ((uint32_t *)s)[0];
210
        data &= plane_mask;
211
        v = expand2[GET_PLANE(data, 0)];
212
        v |= expand2[GET_PLANE(data, 2)] << 2;
213
        PUT_PIXEL2(d, 0, palette[v >> 12]);
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        PUT_PIXEL2(d, 1, palette[(v >> 8) & 0xf]);
215
        PUT_PIXEL2(d, 2, palette[(v >> 4) & 0xf]);
216
        PUT_PIXEL2(d, 3, palette[(v >> 0) & 0xf]);
217

    
218
        v = expand2[GET_PLANE(data, 1)];
219
        v |= expand2[GET_PLANE(data, 3)] << 2;
220
        PUT_PIXEL2(d, 4, palette[v >> 12]);
221
        PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]);
222
        PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]);
223
        PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]);
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        d += BPP * 16;
225
        s += 4;
226
    }
227
}
228

    
229
/*
230
 * 16 color mode
231
 */
232
static void glue(vga_draw_line4_, DEPTH)(VGACommonState *s1, uint8_t *d,
233
                                         const uint8_t *s, int width)
234
{
235
    uint32_t plane_mask, data, v, *palette;
236
    int x;
237

    
238
    palette = s1->last_palette;
239
    plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
240
    width >>= 3;
241
    for(x = 0; x < width; x++) {
242
        data = ((uint32_t *)s)[0];
243
        data &= plane_mask;
244
        v = expand4[GET_PLANE(data, 0)];
245
        v |= expand4[GET_PLANE(data, 1)] << 1;
246
        v |= expand4[GET_PLANE(data, 2)] << 2;
247
        v |= expand4[GET_PLANE(data, 3)] << 3;
248
        ((PIXEL_TYPE *)d)[0] = palette[v >> 28];
249
        ((PIXEL_TYPE *)d)[1] = palette[(v >> 24) & 0xf];
250
        ((PIXEL_TYPE *)d)[2] = palette[(v >> 20) & 0xf];
251
        ((PIXEL_TYPE *)d)[3] = palette[(v >> 16) & 0xf];
252
        ((PIXEL_TYPE *)d)[4] = palette[(v >> 12) & 0xf];
253
        ((PIXEL_TYPE *)d)[5] = palette[(v >> 8) & 0xf];
254
        ((PIXEL_TYPE *)d)[6] = palette[(v >> 4) & 0xf];
255
        ((PIXEL_TYPE *)d)[7] = palette[(v >> 0) & 0xf];
256
        d += BPP * 8;
257
        s += 4;
258
    }
259
}
260

    
261
/*
262
 * 16 color mode, dup2 horizontal
263
 */
264
static void glue(vga_draw_line4d2_, DEPTH)(VGACommonState *s1, uint8_t *d,
265
                                           const uint8_t *s, int width)
266
{
267
    uint32_t plane_mask, data, v, *palette;
268
    int x;
269

    
270
    palette = s1->last_palette;
271
    plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
272
    width >>= 3;
273
    for(x = 0; x < width; x++) {
274
        data = ((uint32_t *)s)[0];
275
        data &= plane_mask;
276
        v = expand4[GET_PLANE(data, 0)];
277
        v |= expand4[GET_PLANE(data, 1)] << 1;
278
        v |= expand4[GET_PLANE(data, 2)] << 2;
279
        v |= expand4[GET_PLANE(data, 3)] << 3;
280
        PUT_PIXEL2(d, 0, palette[v >> 28]);
281
        PUT_PIXEL2(d, 1, palette[(v >> 24) & 0xf]);
282
        PUT_PIXEL2(d, 2, palette[(v >> 20) & 0xf]);
283
        PUT_PIXEL2(d, 3, palette[(v >> 16) & 0xf]);
284
        PUT_PIXEL2(d, 4, palette[(v >> 12) & 0xf]);
285
        PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]);
286
        PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]);
287
        PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]);
288
        d += BPP * 16;
289
        s += 4;
290
    }
291
}
292

    
293
/*
294
 * 256 color mode, double pixels
295
 *
296
 * XXX: add plane_mask support (never used in standard VGA modes)
297
 */
298
static void glue(vga_draw_line8d2_, DEPTH)(VGACommonState *s1, uint8_t *d,
299
                                           const uint8_t *s, int width)
300
{
301
    uint32_t *palette;
302
    int x;
303

    
304
    palette = s1->last_palette;
305
    width >>= 3;
306
    for(x = 0; x < width; x++) {
307
        PUT_PIXEL2(d, 0, palette[s[0]]);
308
        PUT_PIXEL2(d, 1, palette[s[1]]);
309
        PUT_PIXEL2(d, 2, palette[s[2]]);
310
        PUT_PIXEL2(d, 3, palette[s[3]]);
311
        d += BPP * 8;
312
        s += 4;
313
    }
314
}
315

    
316
/*
317
 * standard 256 color mode
318
 *
319
 * XXX: add plane_mask support (never used in standard VGA modes)
320
 */
321
static void glue(vga_draw_line8_, DEPTH)(VGACommonState *s1, uint8_t *d,
322
                                         const uint8_t *s, int width)
323
{
324
    uint32_t *palette;
325
    int x;
326

    
327
    palette = s1->last_palette;
328
    width >>= 3;
329
    for(x = 0; x < width; x++) {
330
        ((PIXEL_TYPE *)d)[0] = palette[s[0]];
331
        ((PIXEL_TYPE *)d)[1] = palette[s[1]];
332
        ((PIXEL_TYPE *)d)[2] = palette[s[2]];
333
        ((PIXEL_TYPE *)d)[3] = palette[s[3]];
334
        ((PIXEL_TYPE *)d)[4] = palette[s[4]];
335
        ((PIXEL_TYPE *)d)[5] = palette[s[5]];
336
        ((PIXEL_TYPE *)d)[6] = palette[s[6]];
337
        ((PIXEL_TYPE *)d)[7] = palette[s[7]];
338
        d += BPP * 8;
339
        s += 8;
340
    }
341
}
342

    
343
#endif /* DEPTH != 15 */
344

    
345

    
346
/* XXX: optimize */
347

    
348
/*
349
 * 15 bit color
350
 */
351
static void glue(vga_draw_line15_, PIXEL_NAME)(VGACommonState *s1, uint8_t *d,
352
                                          const uint8_t *s, int width)
353
{
354
#if DEPTH == 15 && defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN)
355
    memcpy(d, s, width * 2);
356
#else
357
    int w;
358
    uint32_t v, r, g, b;
359

    
360
    w = width;
361
    do {
362
        v = lduw_raw((void *)s);
363
        r = (v >> 7) & 0xf8;
364
        g = (v >> 2) & 0xf8;
365
        b = (v << 3) & 0xf8;
366
        ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
367
        s += 2;
368
        d += BPP;
369
    } while (--w != 0);
370
#endif
371
}
372

    
373
/*
374
 * 16 bit color
375
 */
376
static void glue(vga_draw_line16_, PIXEL_NAME)(VGACommonState *s1, uint8_t *d,
377
                                          const uint8_t *s, int width)
378
{
379
#if DEPTH == 16 && defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN)
380
    memcpy(d, s, width * 2);
381
#else
382
    int w;
383
    uint32_t v, r, g, b;
384

    
385
    w = width;
386
    do {
387
        v = lduw_raw((void *)s);
388
        r = (v >> 8) & 0xf8;
389
        g = (v >> 3) & 0xfc;
390
        b = (v << 3) & 0xf8;
391
        ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
392
        s += 2;
393
        d += BPP;
394
    } while (--w != 0);
395
#endif
396
}
397

    
398
/*
399
 * 24 bit color
400
 */
401
static void glue(vga_draw_line24_, PIXEL_NAME)(VGACommonState *s1, uint8_t *d,
402
                                          const uint8_t *s, int width)
403
{
404
    int w;
405
    uint32_t r, g, b;
406

    
407
    w = width;
408
    do {
409
#if defined(TARGET_WORDS_BIGENDIAN)
410
        r = s[0];
411
        g = s[1];
412
        b = s[2];
413
#else
414
        b = s[0];
415
        g = s[1];
416
        r = s[2];
417
#endif
418
        ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
419
        s += 3;
420
        d += BPP;
421
    } while (--w != 0);
422
}
423

    
424
/*
425
 * 32 bit color
426
 */
427
static void glue(vga_draw_line32_, PIXEL_NAME)(VGACommonState *s1, uint8_t *d,
428
                                          const uint8_t *s, int width)
429
{
430
#if DEPTH == 32 && defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN) && !defined(BGR_FORMAT)
431
    memcpy(d, s, width * 4);
432
#else
433
    int w;
434
    uint32_t r, g, b;
435

    
436
    w = width;
437
    do {
438
#if defined(TARGET_WORDS_BIGENDIAN)
439
        r = s[1];
440
        g = s[2];
441
        b = s[3];
442
#else
443
        b = s[0];
444
        g = s[1];
445
        r = s[2];
446
#endif
447
        ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
448
        s += 4;
449
        d += BPP;
450
    } while (--w != 0);
451
#endif
452
}
453

    
454
#undef PUT_PIXEL2
455
#undef DEPTH
456
#undef BPP
457
#undef PIXEL_TYPE
458
#undef PIXEL_NAME
459
#undef BGR_FORMAT