root / hw / display / vga_template.h @ 104059da
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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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#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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|
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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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stl_p((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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stl_p(((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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stl_p(((uint32_t *)d)+0, (dmask4[(font_data >> 6)] & xorcol) ^ bgcol); |
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stl_p(((uint32_t *)d)+1,
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(dmask4[(font_data >> 4) & 3] & xorcol) ^ bgcol); |
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stl_p(((uint32_t *)d)+2,
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(dmask4[(font_data >> 2) & 3] & xorcol) ^ bgcol); |
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v = (dmask4[(font_data >> 0) & 3] & xorcol) ^ bgcol; |
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stl_p(((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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|
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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
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*/
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static void glue(vga_draw_line2d2_, 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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PUT_PIXEL2(d, 0, palette[v >> 12]); |
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PUT_PIXEL2(d, 1, palette[(v >> 8) & 0xf]); |
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PUT_PIXEL2(d, 2, palette[(v >> 4) & 0xf]); |
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PUT_PIXEL2(d, 3, palette[(v >> 0) & 0xf]); |
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|
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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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PUT_PIXEL2(d, 4, palette[v >> 12]); |
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PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]); |
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PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]); |
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PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]); |
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d += BPP * 16;
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s += 4;
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} |
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} |
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|
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/*
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* 16 color mode
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*/
|
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static void glue(vga_draw_line4_, 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, data, v, *palette; |
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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 = expand4[GET_PLANE(data, 0)];
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v |= expand4[GET_PLANE(data, 1)] << 1; |
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v |= expand4[GET_PLANE(data, 2)] << 2; |
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v |= expand4[GET_PLANE(data, 3)] << 3; |
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((PIXEL_TYPE *)d)[0] = palette[v >> 28]; |
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((PIXEL_TYPE *)d)[1] = palette[(v >> 24) & 0xf]; |
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((PIXEL_TYPE *)d)[2] = palette[(v >> 20) & 0xf]; |
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((PIXEL_TYPE *)d)[3] = palette[(v >> 16) & 0xf]; |
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((PIXEL_TYPE *)d)[4] = palette[(v >> 12) & 0xf]; |
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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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|
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/*
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* 16 color mode, dup2 horizontal
|
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*/
|
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static void glue(vga_draw_line4d2_, 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, data, v, *palette; |
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int x;
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|
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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 = expand4[GET_PLANE(data, 0)];
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v |= expand4[GET_PLANE(data, 1)] << 1; |
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v |= expand4[GET_PLANE(data, 2)] << 2; |
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v |= expand4[GET_PLANE(data, 3)] << 3; |
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PUT_PIXEL2(d, 0, palette[v >> 28]); |
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PUT_PIXEL2(d, 1, palette[(v >> 24) & 0xf]); |
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PUT_PIXEL2(d, 2, palette[(v >> 20) & 0xf]); |
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PUT_PIXEL2(d, 3, palette[(v >> 16) & 0xf]); |
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PUT_PIXEL2(d, 4, palette[(v >> 12) & 0xf]); |
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PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]); |
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PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]); |
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PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]); |
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d += BPP * 16;
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s += 4;
|
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} |
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} |
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|
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/*
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* 256 color mode, double pixels
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*
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* XXX: add plane_mask support (never used in standard VGA modes)
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*/
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static void glue(vga_draw_line8d2_, 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 *palette; |
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int x;
|
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|
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palette = s1->last_palette; |
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width >>= 3;
|
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for(x = 0; x < width; x++) { |
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PUT_PIXEL2(d, 0, palette[s[0]]); |
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PUT_PIXEL2(d, 1, palette[s[1]]); |
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PUT_PIXEL2(d, 2, palette[s[2]]); |
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PUT_PIXEL2(d, 3, palette[s[3]]); |
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d += BPP * 8;
|
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s += 4;
|
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} |
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} |
| 317 |
|
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/*
|
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* standard 256 color mode
|
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*
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* XXX: add plane_mask support (never used in standard VGA modes)
|
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*/
|
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static void glue(vga_draw_line8_, 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 *palette; |
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int x;
|
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|
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palette = s1->last_palette; |
| 330 |
width >>= 3;
|
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for(x = 0; x < width; x++) { |
| 332 |
((PIXEL_TYPE *)d)[0] = palette[s[0]]; |
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((PIXEL_TYPE *)d)[1] = palette[s[1]]; |
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((PIXEL_TYPE *)d)[2] = palette[s[2]]; |
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((PIXEL_TYPE *)d)[3] = palette[s[3]]; |
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((PIXEL_TYPE *)d)[4] = palette[s[4]]; |
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((PIXEL_TYPE *)d)[5] = palette[s[5]]; |
| 338 |
((PIXEL_TYPE *)d)[6] = palette[s[6]]; |
| 339 |
((PIXEL_TYPE *)d)[7] = palette[s[7]]; |
| 340 |
d += BPP * 8;
|
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s += 8;
|
| 342 |
} |
| 343 |
} |
| 344 |
|
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#endif /* DEPTH != 15 */ |
| 346 |
|
| 347 |
|
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/* XXX: optimize */
|
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|
| 350 |
/*
|
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* 15 bit color
|
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*/
|
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static void glue(vga_draw_line15_, PIXEL_NAME)(VGACommonState *s1, uint8_t *d, |
| 354 |
const uint8_t *s, int width) |
| 355 |
{
|
| 356 |
#if DEPTH == 15 && defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN) |
| 357 |
memcpy(d, s, width * 2);
|
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#else
|
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int w;
|
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uint32_t v, r, g, b; |
| 361 |
|
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w = width; |
| 363 |
do {
|
| 364 |
v = lduw_raw((void *)s);
|
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r = (v >> 7) & 0xf8; |
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g = (v >> 2) & 0xf8; |
| 367 |
b = (v << 3) & 0xf8; |
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((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
|
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s += 2;
|
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d += BPP; |
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} while (--w != 0); |
| 372 |
#endif
|
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} |
| 374 |
|
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/*
|
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* 16 bit color
|
| 377 |
*/
|
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static void glue(vga_draw_line16_, PIXEL_NAME)(VGACommonState *s1, uint8_t *d, |
| 379 |
const uint8_t *s, int width) |
| 380 |
{
|
| 381 |
#if DEPTH == 16 && defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN) |
| 382 |
memcpy(d, s, width * 2);
|
| 383 |
#else
|
| 384 |
int w;
|
| 385 |
uint32_t v, r, g, b; |
| 386 |
|
| 387 |
w = width; |
| 388 |
do {
|
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v = lduw_raw((void *)s);
|
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r = (v >> 8) & 0xf8; |
| 391 |
g = (v >> 3) & 0xfc; |
| 392 |
b = (v << 3) & 0xf8; |
| 393 |
((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
|
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s += 2;
|
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d += BPP; |
| 396 |
} while (--w != 0); |
| 397 |
#endif
|
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} |
| 399 |
|
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/*
|
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* 24 bit color
|
| 402 |
*/
|
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static void glue(vga_draw_line24_, PIXEL_NAME)(VGACommonState *s1, uint8_t *d, |
| 404 |
const uint8_t *s, int width) |
| 405 |
{
|
| 406 |
int w;
|
| 407 |
uint32_t r, g, b; |
| 408 |
|
| 409 |
w = width; |
| 410 |
do {
|
| 411 |
#if defined(TARGET_WORDS_BIGENDIAN)
|
| 412 |
r = s[0];
|
| 413 |
g = s[1];
|
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b = s[2];
|
| 415 |
#else
|
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b = s[0];
|
| 417 |
g = s[1];
|
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r = s[2];
|
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#endif
|
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((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
|
| 421 |
s += 3;
|
| 422 |
d += BPP; |
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} while (--w != 0); |
| 424 |
} |
| 425 |
|
| 426 |
/*
|
| 427 |
* 32 bit color
|
| 428 |
*/
|
| 429 |
static void glue(vga_draw_line32_, PIXEL_NAME)(VGACommonState *s1, uint8_t *d, |
| 430 |
const uint8_t *s, int width) |
| 431 |
{
|
| 432 |
#if DEPTH == 32 && defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN) && !defined(BGR_FORMAT) |
| 433 |
memcpy(d, s, width * 4);
|
| 434 |
#else
|
| 435 |
int w;
|
| 436 |
uint32_t r, g, b; |
| 437 |
|
| 438 |
w = width; |
| 439 |
do {
|
| 440 |
#if defined(TARGET_WORDS_BIGENDIAN)
|
| 441 |
r = s[1];
|
| 442 |
g = s[2];
|
| 443 |
b = s[3];
|
| 444 |
#else
|
| 445 |
b = s[0];
|
| 446 |
g = s[1];
|
| 447 |
r = s[2];
|
| 448 |
#endif
|
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((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
|
| 450 |
s += 4;
|
| 451 |
d += BPP; |
| 452 |
} while (--w != 0); |
| 453 |
#endif
|
| 454 |
} |
| 455 |
|
| 456 |
#undef PUT_PIXEL2
|
| 457 |
#undef DEPTH
|
| 458 |
#undef BPP
|
| 459 |
#undef PIXEL_TYPE
|
| 460 |
#undef PIXEL_NAME
|
| 461 |
#undef BGR_FORMAT
|