| 1 | /*************************************************************** |
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| 2 | ** |
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| 3 | ** Broadcom Corp. Confidential |
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| 4 | ** Copyright 2002 Broadcom Corp. All Rights Reserved. |
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| 5 | ** |
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| 6 | ** THIS SOFTWARE MAY ONLY BE USED SUBJECT TO AN EXECUTED |
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| 7 | ** SOFTWARE LICENSE AGREEMENT BETWEEN THE USER AND BROADCOM. |
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| 8 | ** YOU HAVE NO RIGHT TO USE OR EXPLOIT THIS MATERIAL EXCEPT |
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| 9 | ** SUBJECT TO THE TERMS OF SUCH AN AGREEMENT. |
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| 10 | ** |
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| 11 | ** Description: bgfx core implementation |
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| 12 | ** |
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| 13 | ** Created: 8/22/2002 by Jeffrey P. Fisher |
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| 14 | ** |
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| 15 | ** |
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| 16 | ** |
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| 17 | ****************************************************************/ |
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| 18 | |
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| 19 | /** include files **/ |
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| 20 | #include "bgfx.h" |
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| 21 | |
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| 22 | #define ZORDER_TUNNEL 3 |
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| 23 | #define ZORDER_FX 2 |
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| 24 | #define ZORDER_TOP 1 |
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| 25 | #define ZORDER_BOTTOM 0 |
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| 26 | |
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| 27 | |
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| 28 | #define SURF_WIDTH 720 |
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| 29 | |
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| 30 | #define BGFX_MIN(x,y) ((x < y) ? x : y) |
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| 31 | #define bgfx_clut8_to_rgb(clut,c) (uint32_t)(clut[c]) |
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| 32 | |
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| 33 | |
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| 34 | |
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| 35 | /* blit row a1 to clut 8 destination */ |
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| 36 | static inline void bgfx_render_a1_to_clut4( uint8_t *src, uint8_t *dst, |
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| 37 | int width, uint8_t c, int odd_pixel ) |
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| 38 | { |
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| 39 | int i; |
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| 40 | |
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| 41 | BGFX_TRACE(("%p,%p,%d,0x%02x\n",src,dst,width,c)); |
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| 42 | for (i = 0; i < width; i++) |
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| 43 | { |
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| 44 | if (src[i>>3] & (1<<(7-(i%8)))) |
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| 45 | { |
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| 46 | if (odd_pixel & 1) |
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| 47 | { |
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| 48 | *dst &= 0xF0; |
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| 49 | *dst |= (c & 0xF); |
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| 50 | } |
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| 51 | else |
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| 52 | { |
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| 53 | *dst &= 0xF; |
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| 54 | *dst |= (c & 0xF) << 4; |
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| 55 | } |
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| 56 | BGFX_TRACE(("%d,",i)); |
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| 57 | } |
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| 58 | if (odd_pixel) |
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| 59 | { |
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| 60 | odd_pixel = 0; |
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| 61 | dst++; |
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| 62 | } |
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| 63 | else |
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| 64 | odd_pixel = 1; |
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| 65 | |
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| 66 | } |
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| 67 | BGFX_TRACE(("\n")); |
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| 68 | } |
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| 69 | |
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| 70 | /* blit row a8 to clut 8 destination */ |
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| 71 | static inline void bgfx_render_a8_to_clut4( uint8_t *src, uint8_t *dst, int width, uint8_t c ) |
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| 72 | { |
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| 73 | int i; |
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| 74 | for (i = 0; i < width; i++) |
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| 75 | { |
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| 76 | if (*src > 0x80) |
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| 77 | { |
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| 78 | if (i & 1) |
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| 79 | { |
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| 80 | *dst &= 0xF0; |
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| 81 | *dst |= (c & 0xF); |
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| 82 | } |
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| 83 | else |
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| 84 | { |
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| 85 | *dst &= 0xF; |
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| 86 | *dst |= (c & 0xF) << 4; |
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| 87 | } |
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| 88 | } |
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| 89 | BGFX_TRACE(("0x%02x(0x%02x)",*src,*dst)); |
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| 90 | if (i & 1) |
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| 91 | dst++; |
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| 92 | src++; |
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| 93 | } |
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| 94 | BGFX_TRACE(("\n")); |
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| 95 | } |
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| 96 | |
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| 97 | |
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| 98 | /* blit row a1 to clut 8 destination */ |
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| 99 | static inline void bgfx_render_a1_to_clut8( uint8_t *src, uint8_t *dst, int width, uint8_t c ) |
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| 100 | { |
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| 101 | int i; |
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| 102 | |
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| 103 | BGFX_TRACE(("%p,%p,%d,0x%02x\n",src,dst,width,c)); |
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| 104 | for (i = 0; i < width; i++) |
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| 105 | { |
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| 106 | if (src[i>>3] & (1<<(7-(i%8)))) |
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| 107 | { |
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| 108 | *dst = c; |
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| 109 | BGFX_TRACE(("%d,",i)); |
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| 110 | } |
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| 111 | dst++; |
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| 112 | } |
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| 113 | BGFX_TRACE(("\n")); |
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| 114 | } |
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| 115 | /* blit row a8 to clut 8 destination */ |
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| 116 | static inline void bgfx_render_a8_to_clut8( uint8_t *src, uint8_t *dst, int width, uint8_t c ) |
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| 117 | { |
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| 118 | int i; |
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| 119 | for (i = 0; i < width; i++) |
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| 120 | { |
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| 121 | if (*src > 0x80) |
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| 122 | { |
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| 123 | *dst = c; |
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| 124 | } |
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| 125 | BGFX_TRACE(("0x%02x(0x%02x)",*src,*dst)); |
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| 126 | dst++; |
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| 127 | src++; |
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| 128 | } |
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| 129 | BGFX_TRACE(("\n")); |
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| 130 | } |
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| 131 | |
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| 132 | /* blit row a1 to 8888 ARGB destination */ |
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| 133 | static inline void bgfx_render_a1_to_rgb( uint8_t *src, uint8_t *dst, int width, uint32_t c ) |
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| 134 | { |
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| 135 | int i; |
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| 136 | |
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| 137 | BGFX_TRACE(("%p,%p,%d,0x%02lx\n",src,dst,width,c)); |
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| 138 | for (i = 0; i < width; i++) |
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| 139 | { |
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| 140 | if (src[i>>3] & (1<<(7-(i%8)))) |
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| 141 | { |
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| 142 | *((uint32_t*)dst) = c; |
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| 143 | BGFX_TRACE(("%d,",i)); |
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| 144 | } |
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| 145 | dst += 4; |
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| 146 | } |
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| 147 | BGFX_TRACE(("\n")); |
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| 148 | } |
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| 149 | /* blit row a8 to 8888 ARGB destination */ |
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| 150 | /* |
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| 151 | #define BGFX_BLEND(a,rs,rd) (((rs * a)/0xFF) + (rd - ((a * rd)/0xFF)) & 0xFF) |
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| 152 | */ |
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| 153 | #define BGFX_BLEND(a,rs,rd) ((a * (rs-rd) >> 8) + rd) |
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| 154 | static inline void bgfx_render_a8_to_rgb( uint8_t *src, uint8_t *dst, int width, uint32_t c) |
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| 155 | { |
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| 156 | register int i; |
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| 157 | register uint32_t a,r,g,b; |
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| 158 | register uint32_t a_src; |
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| 159 | register uint32_t r_src = (c >> 16) & 0xFF; |
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| 160 | register uint32_t g_src = (c >> 8) & 0xFF; |
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| 161 | register uint32_t b_src = (c >> 0) & 0xFF; |
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| 162 | for (i = 0; i < width; i++) |
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| 163 | { |
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| 164 | a_src = *src; |
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| 165 | a = dst[3]; r = dst[2]; g = dst[1]; b = dst[0]; |
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| 166 | *((uint32_t*)dst) = (a << 24) | |
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| 167 | (BGFX_BLEND(a_src,r_src,r) << 16) | |
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| 168 | (BGFX_BLEND(a_src,g_src,g) << 8) | |
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| 169 | BGFX_BLEND(a_src,b_src,b); |
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| 170 | BGFX_TRACE(("0x%02x(0x%08x)",*src,*((uint32_t*)dst))); |
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| 171 | dst += 4; |
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| 172 | src++; |
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| 173 | } |
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| 174 | BGFX_TRACE(("\n")); |
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| 175 | } |
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| 176 | |
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| 177 | /****************************************************************} |
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| 178 | * INPUTS: io and protection function structures |
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| 179 | * OUTPUTS: none |
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| 180 | * RETURNS: non-zero on failure |
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| 181 | * FUNCTION: initialize sgl, primarily for handling freetype |
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| 182 | * |
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| 183 | ****************************************************************/ |
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| 184 | int bgfx_init(bgfx_io_t *io_p,bgfx_prot_t *prot_p) |
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| 185 | { |
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| 186 | bgfx_config(io_p,prot_p); |
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| 187 | return bgfx_font_init(); |
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| 188 | } |
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| 189 | /****************************************************************} |
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| 190 | * INPUTS: none |
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| 191 | * OUTPUTS: none |
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| 192 | * RETURNS: non-zero on failure |
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| 193 | * FUNCTION: release sgl global resources, primarily for handling freetype |
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| 194 | * |
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| 195 | ****************************************************************/ |
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| 196 | void bgfx_done(void) |
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| 197 | { |
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| 198 | bgfx_font_done(); |
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| 199 | } |
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| 200 | |
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| 201 | /****************************************************************} |
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| 202 | * bgfx_create |
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| 203 | * |
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| 204 | * INPUTS: node_name - name of the node to create surface in |
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| 205 | * p - surface structure to initialize |
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| 206 | * OUTPUTS: none |
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| 207 | * RETURNS: non-zero on failure |
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| 208 | * FUNCTION: initialize and create the surface. |
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| 209 | * |
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| 210 | ****************************************************************/ |
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| 211 | int bgfx_create(bgfx_surf_p p,uint16_t width,uint16_t height, |
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| 212 | uint8_t *ptr, uint16_t pitch, |
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| 213 | bgfx_palette_t *palette, |
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| 214 | uint32_t flags) |
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| 215 | { |
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| 216 | BGFX_DEBUG(("bgfx_create flags = 0x%08x\n",flags)); |
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| 217 | BGFX_MEMSET(p,0,sizeof(bgfx_surf_t)); |
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| 218 | |
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| 219 | if (!ptr && (flags & BGFX_SURF_PRIMARY)) |
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| 220 | { |
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| 221 | BGFX_DEBUG(("bgfx_create BGFX_SURF_FULLSCREEN requires valid memory ptr.\n")); |
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| 222 | } |
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| 223 | |
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| 224 | p->bpp = BGFX_SURF_GET_BPP(flags); |
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| 225 | |
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| 226 | BGFX_DEBUG(("bgfx_create bpp = %d.\n",p->bpp)); |
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| 227 | |
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| 228 | if ((p->bpp == 0) || ((flags & BGFX_SURF_RGB) && (p->bpp != 32))) |
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| 229 | { |
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| 230 | BGFX_DEBUG(("bgfx_create invalid bpp = %d.\n",p->bpp)); |
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| 231 | return -1; |
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| 232 | } |
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| 233 | |
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| 234 | p->flags = flags; |
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| 235 | if (ptr) |
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| 236 | { |
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| 237 | p->surface.pitch = pitch; |
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| 238 | p->surface.buf = ptr; |
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| 239 | p->surface.width = width; |
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| 240 | p->surface.height = height; |
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| 241 | } |
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| 242 | else |
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| 243 | { |
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| 244 | |
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| 245 | p->surface.pitch = width * p->bpp / 8; |
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| 246 | if (p->surface.pitch & 0x1) |
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| 247 | p->surface.pitch += 1; |
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| 248 | |
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| 249 | p->surface.width = width; |
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| 250 | p->surface.height = height; |
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| 251 | p->surface.buf = BGFX_MALLOC(p->surface.pitch * p->surface.height); |
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| 252 | p->flags |= BGFX_SURF_ALLOC; |
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| 253 | } |
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| 254 | |
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| 255 | if (palette) |
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| 256 | { |
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| 257 | BGFX_MEMCPY(&p->palette,palette,sizeof(bgfx_palette_t)); |
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| 258 | } |
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| 259 | return 0; |
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| 260 | } |
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| 261 | /**************************************************************** |
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| 262 | * bgfx_destroy |
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| 263 | * |
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| 264 | * INPUTS: p - surface structure |
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| 265 | * OUTPUTS: none |
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| 266 | * RETURNS: none |
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| 267 | * FUNCTION: free up surface resources |
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| 268 | * |
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| 269 | ****************************************************************/ |
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| 270 | void bgfx_destroy(bgfx_surf_p p) |
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| 271 | { |
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| 272 | if (p->flags & BGFX_SURF_ALLOC) |
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| 273 | { |
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| 274 | BGFX_FREE(p->surface.buf); |
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| 275 | return; |
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| 276 | } |
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| 277 | } |
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| 278 | /**************************************************************** |
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| 279 | * bgfx_fill_rect |
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| 280 | * |
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| 281 | * INPUTS: p - surface structure |
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| 282 | * OUTPUTS: w,h,flags - surface width,height and flags |
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| 283 | * RETURNS: none |
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| 284 | * FUNCTION: Return surface information (width,height, and flags) |
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| 285 | * |
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| 286 | ****************************************************************/ |
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| 287 | void bgfx_get_info(bgfx_surf_p p,uint16_t *w,uint16_t *h,uint16_t *pitch, uint32_t *flags) |
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| 288 | { |
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| 289 | *w = p->surface.width; |
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| 290 | *h = p->surface.height; |
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| 291 | *pitch = p->surface.pitch; |
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| 292 | *flags = p->flags; |
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| 293 | } |
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| 294 | /**************************************************************** |
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| 295 | * bgfx_get_palette |
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| 296 | * |
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| 297 | * INPUTS: p - surface structure |
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| 298 | * OUTPUTS: palette_p - return current palette |
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| 299 | * RETURNS: none |
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| 300 | * FUNCTION: get the current palett |
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| 301 | * |
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| 302 | ****************************************************************/ |
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| 303 | void bgfx_get_palette(bgfx_surf_p p,bgfx_palette_t *palette_p) |
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| 304 | { |
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| 305 | BGFX_MEMCPY(palette_p,&p->palette,sizeof(bgfx_palette_t)); |
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| 306 | } |
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| 307 | /**************************************************************** |
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| 308 | * bgfx_set_palette |
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| 309 | * |
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| 310 | * INPUTS: p - surface structure |
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| 311 | * palette_p - the palette |
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| 312 | * OUTPUTS: none |
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| 313 | * RETURNS: none |
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| 314 | * FUNCTION: set the global system palette |
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| 315 | * |
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| 316 | ****************************************************************/ |
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| 317 | void bgfx_set_palette(bgfx_surf_p p, bgfx_palette_t *palette_p) |
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| 318 | { |
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| 319 | BGFX_MEMCPY(&p->palette,palette_p,sizeof(bgfx_palette_t)); |
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| 320 | } |
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| 321 | |
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| 322 | /**************************************************************** |
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| 323 | * bgfx_set_pixel |
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| 324 | * |
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| 325 | * INPUTS: p - surface structure |
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| 326 | * x,y - coordinates |
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| 327 | * c - pixel value |
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| 328 | * OUTPUTS: none |
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| 329 | * RETURNS: none |
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| 330 | * FUNCTION: set the pixel at x,y |
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| 331 | * |
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| 332 | ****************************************************************/ |
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| 333 | void bgfx_set_pixel(bgfx_surf_p p,uint16_t x,uint16_t y,bgfx_pixel c) |
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| 334 | { |
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| 335 | uint8_t *dst; |
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| 336 | |
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| 337 | if ((x >= p->surface.width) || (y >= p->surface.height)) |
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| 338 | { |
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| 339 | BGFX_DEBUG(("bgfx_set_pixel param error (%p,%d,%d)\n",p,x,y)); |
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| 340 | return; |
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| 341 | } |
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| 342 | |
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| 343 | dst = (uint8_t*)p->surface.buf; |
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| 344 | dst += y * p->surface.pitch + (x * p->bpp)/8; |
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| 345 | if (p->flags & BGFX_SURF_RGB) |
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| 346 | { |
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| 347 | *((uint32_t*)dst) = c; |
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| 348 | bgfx_cacheflush(dst,4); |
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| 349 | } |
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| 350 | else if (p->bpp == 8) |
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| 351 | { |
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| 352 | *dst = (uint8_t)c; |
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| 353 | bgfx_cacheflush(dst,1); |
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| 354 | } |
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| 355 | else |
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| 356 | { |
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| 357 | if (x & 1) |
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| 358 | { |
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| 359 | *dst &= 0xF0; |
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| 360 | *dst |= (uint8_t)(c & 0xF); |
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| 361 | } |
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| 362 | else |
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| 363 | { |
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| 364 | *dst &= 0xF; |
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| 365 | *dst |= (uint8_t)((c & 0xF) << 4); |
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| 366 | } |
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| 367 | bgfx_cacheflush(dst,1); |
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| 368 | } |
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| 369 | } |
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| 370 | /**************************************************************** |
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| 371 | * bgfx_get_pixel |
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| 372 | * |
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| 373 | * INPUTS: p - surface structure |
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| 374 | * x,y - coordinates |
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| 375 | * c - pixel value |
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| 376 | * OUTPUTS: none |
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| 377 | * RETURNS: none |
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| 378 | * FUNCTION: get the pixel value at x,y. The bgfx_color will be the |
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| 379 | * actual pixel value. |
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| 380 | * |
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| 381 | * NOTE: Not supported for RGB surfaces. To get a pixel for RGB access buf |
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| 382 | * directly. |
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| 383 | * |
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| 384 | ****************************************************************/ |
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| 385 | bgfx_pixel bgfx_get_pixel(bgfx_surf_p p,uint16_t x,uint16_t y) |
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| 386 | { |
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| 387 | uint8_t *dst; |
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| 388 | if ((x >= p->surface.width) || (y >= p->surface.height)) |
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| 389 | { |
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| 390 | BGFX_DEBUG(("bgfx_get_pixel param error (%p,%d,%d)\n",p,x,y)); |
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| 391 | return 0; |
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| 392 | } |
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| 393 | dst = (uint8_t*)p->surface.buf; |
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| 394 | dst += y * p->surface.pitch + (x * p->bpp)/8; |
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| 395 | if (p->flags & BGFX_SURF_RGB) |
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| 396 | { |
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| 397 | return *((uint32_t*)dst); |
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| 398 | } |
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| 399 | else if (p->bpp == 8) |
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| 400 | { |
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| 401 | return *dst; |
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| 402 | } |
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| 403 | |
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| 404 | /* p->bpp == 4 */ |
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| 405 | if (x & 1) |
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| 406 | { |
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| 407 | return (*dst & 0xF0); |
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| 408 | } |
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| 409 | |
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| 410 | return (*dst >> 4); |
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| 411 | } |
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| 412 | /**************************************************************** |
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| 413 | * bgfx_h_draw_line |
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| 414 | * |
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| 415 | * INPUTS: p - surface structure |
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| 416 | * x1,x2,y - coordinates |
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| 417 | * c - pixel value |
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| 418 | * OUTPUTS: none |
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| 419 | * RETURNS: none |
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| 420 | * FUNCTION: Draw a horizontal line make of pixels defined by the value c. |
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| 421 | * |
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| 422 | * JPF - these need to be optimized |
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| 423 | * |
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| 424 | ****************************************************************/ |
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| 425 | void bgfx_h_draw_line(bgfx_surf_p p,uint16_t x1,uint16_t x2,uint16_t y, |
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| 426 | bgfx_pixel c) |
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| 427 | { |
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| 428 | int w = x2 - x1; |
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| 429 | |
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| 430 | if (w < 0) |
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| 431 | { |
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| 432 | w = -w; |
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| 433 | bgfx_fill_rect(p,x2,y,(uint16_t)w,1, c); |
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| 434 | } |
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| 435 | else |
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| 436 | { |
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| 437 | bgfx_fill_rect(p,x1,y,(uint16_t)w,1, c); |
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| 438 | } |
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| 439 | } |
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| 440 | /**************************************************************** |
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| 441 | * bgfx_v_draw_line |
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| 442 | * |
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| 443 | * INPUTS: p - surface structure |
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| 444 | * x,y1,y2 - coordinates |
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| 445 | * c - pixel value |
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| 446 | * OUTPUTS: none |
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| 447 | * RETURNS: none |
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| 448 | * FUNCTION: Draw a vertical line make of pixels defined by the value c. |
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| 449 | * |
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| 450 | * JPF - these need to be optimized |
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| 451 | * |
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| 452 | ****************************************************************/ |
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| 453 | void bgfx_v_draw_line(bgfx_surf_p p,uint16_t x,uint16_t y1,uint16_t y2, |
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| 454 | bgfx_pixel c) |
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| 455 | { |
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| 456 | uint8_t *dst; |
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| 457 | uint16_t h = y2 - y1; |
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| 458 | if ((y2 <= y1) || (x >= p->surface.width)) |
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| 459 | { |
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| 460 | BGFX_DEBUG(("bgfx_v_draw_line param error (%p,%d,%d,%d,0x%02lx)\n",p,x,y1,y2,c)); |
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| 461 | return; |
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| 462 | } |
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| 463 | |
|---|
| 464 | if (h > p->surface.height - y1) |
|---|
| 465 | h = p->surface.height - y1; |
|---|
| 466 | dst = (uint8_t*)p->surface.buf; |
|---|
| 467 | dst += y1 * p->surface.pitch + x * p->bpp/8; |
|---|
| 468 | |
|---|
| 469 | if (p->flags & BGFX_SURF_RGB) |
|---|
| 470 | { |
|---|
| 471 | while (h--) |
|---|
| 472 | { |
|---|
| 473 | *((uint32_t*)dst) = c; |
|---|
| 474 | dst += p->surface.pitch; |
|---|
| 475 | } |
|---|
| 476 | } |
|---|
| 477 | else if (p->bpp == 8) |
|---|
| 478 | { |
|---|
| 479 | while (h--) |
|---|
| 480 | { |
|---|
| 481 | *dst = (uint8_t)c; |
|---|
| 482 | dst += p->surface.pitch; |
|---|
| 483 | } |
|---|
| 484 | } |
|---|
| 485 | else |
|---|
| 486 | { |
|---|
| 487 | while (h--) |
|---|
| 488 | { |
|---|
| 489 | if (x & 1) |
|---|
| 490 | { |
|---|
| 491 | *dst &= 0xF0; |
|---|
| 492 | *dst |= (uint8_t)(c & 0xF); |
|---|
| 493 | } |
|---|
| 494 | else |
|---|
| 495 | { |
|---|
| 496 | *dst &= 0xF; |
|---|
| 497 | *dst |= (uint8_t)((c & 0xF) << 4); |
|---|
| 498 | } |
|---|
| 499 | dst += p->surface.pitch; |
|---|
| 500 | } |
|---|
| 501 | } |
|---|
| 502 | bgfx_cacheflush(p->surface.buf,p->surface.pitch * p->surface.height); |
|---|
| 503 | } |
|---|
| 504 | /**************************************************************** |
|---|
| 505 | * bgfx_fill_rect |
|---|
| 506 | * |
|---|
| 507 | * INPUTS: p - surface structure |
|---|
| 508 | * x1,x2,y1,y2 - coordinates |
|---|
| 509 | * c - pixel value |
|---|
| 510 | * OUTPUTS: none |
|---|
| 511 | * RETURNS: none |
|---|
| 512 | * FUNCTION: Fill the rectangle with pixels defined by the value c. |
|---|
| 513 | * |
|---|
| 514 | * JPF - these need to be optimized |
|---|
| 515 | * |
|---|
| 516 | ****************************************************************/ |
|---|
| 517 | /* TODO create optimized version of memset */ |
|---|
| 518 | #if 0 |
|---|
| 519 | static inline void *bgfx_memset(void *dest,int c,size_t count) |
|---|
| 520 | { |
|---|
| 521 | uint8_t *d = dest; |
|---|
| 522 | for(;count>0;count--) { |
|---|
| 523 | *d++ = c; |
|---|
| 524 | } |
|---|
| 525 | return dest; |
|---|
| 526 | } |
|---|
| 527 | #else |
|---|
| 528 | #define bgfx_memset BGFX_MEMSET |
|---|
| 529 | #endif |
|---|
| 530 | |
|---|
| 531 | void bgfx_fill_rect(bgfx_surf_p p,uint16_t x,uint16_t y,uint16_t w,uint16_t h, |
|---|
| 532 | bgfx_pixel c) |
|---|
| 533 | { |
|---|
| 534 | uint8_t *tdst; |
|---|
| 535 | uint16_t i; |
|---|
| 536 | uint8_t *dst; |
|---|
| 537 | uint16_t j; |
|---|
| 538 | |
|---|
| 539 | if (y + h > p->surface.height) |
|---|
| 540 | h = p->surface.height - y; |
|---|
| 541 | |
|---|
| 542 | if (w + x > p->surface.width) |
|---|
| 543 | w = p->surface.width - x; |
|---|
| 544 | |
|---|
| 545 | dst = (uint8_t*)p->surface.buf; |
|---|
| 546 | dst += y * p->surface.pitch + x * p->bpp/8; |
|---|
| 547 | |
|---|
| 548 | if (p->flags & BGFX_SURF_RGB) |
|---|
| 549 | { |
|---|
| 550 | for (j = 0; j < h; ++j) |
|---|
| 551 | { |
|---|
| 552 | tdst = dst; |
|---|
| 553 | for (i = 0; i < w; ++i) |
|---|
| 554 | { |
|---|
| 555 | *((uint32_t*)tdst) = c; |
|---|
| 556 | tdst += p->bpp/8; |
|---|
| 557 | } |
|---|
| 558 | dst += p->surface.pitch; |
|---|
| 559 | } |
|---|
| 560 | } |
|---|
| 561 | else if (p->bpp == 8) |
|---|
| 562 | { |
|---|
| 563 | for (j = 0; j < h; ++j) |
|---|
| 564 | { |
|---|
| 565 | bgfx_memset(dst,(uint8_t)c,w); |
|---|
| 566 | dst += p->surface.pitch; |
|---|
| 567 | } |
|---|
| 568 | } |
|---|
| 569 | else |
|---|
| 570 | { |
|---|
| 571 | unsigned char two_pixel = (uint8_t)((c << 4) | c); |
|---|
| 572 | for (j = 0; j < h; ++j) |
|---|
| 573 | { |
|---|
| 574 | unsigned int num_bytes = (w * p->bpp)/8; |
|---|
| 575 | if (x & 1) |
|---|
| 576 | { |
|---|
| 577 | *dst &= 0xF0; |
|---|
| 578 | *dst |= (uint8_t)(c & 0xF); |
|---|
| 579 | if (w & 1) |
|---|
| 580 | { |
|---|
| 581 | bgfx_memset(&dst[1],two_pixel,num_bytes); |
|---|
| 582 | } |
|---|
| 583 | else |
|---|
| 584 | { |
|---|
| 585 | bgfx_memset(&dst[1],two_pixel,num_bytes - 1); |
|---|
| 586 | dst[num_bytes] &= 0x0F; |
|---|
| 587 | dst[num_bytes] |= (uint8_t)((c & 0xF) << 4); |
|---|
| 588 | } |
|---|
| 589 | } |
|---|
| 590 | else |
|---|
| 591 | { |
|---|
| 592 | if (w & 1) |
|---|
| 593 | { |
|---|
| 594 | bgfx_memset(dst,two_pixel,num_bytes); |
|---|
| 595 | dst[num_bytes] &= 0x0F; |
|---|
| 596 | dst[num_bytes] |= (uint8_t)((c & 0xF) << 4); |
|---|
| 597 | } |
|---|
| 598 | else |
|---|
| 599 | bgfx_memset(dst,two_pixel,num_bytes); |
|---|
| 600 | } |
|---|
| 601 | dst += p->surface.pitch; |
|---|
| 602 | } |
|---|
| 603 | } |
|---|
| 604 | bgfx_cacheflush(p->surface.buf,p->surface.pitch * p->surface.height); |
|---|
| 605 | } |
|---|
| 606 | /**************************************************************** |
|---|
| 607 | * bgfx_render_glyph |
|---|
| 608 | * |
|---|
| 609 | * INPUTS: p - surface structure |
|---|
| 610 | * x,y - coordinates |
|---|
| 611 | * a_char - character to render |
|---|
| 612 | * font_p - font definition |
|---|
| 613 | * c - color |
|---|
| 614 | * OUTPUTS: none |
|---|
| 615 | * RETURNS: character advance |
|---|
| 616 | * FUNCTION: Fill the rectangle with pixels defined by the value c. |
|---|
| 617 | * |
|---|
| 618 | ****************************************************************/ |
|---|
| 619 | #define IT_OFFSET 3 |
|---|
| 620 | static inline int bgfx_render_glyph(bgfx_surf_p p,uint16_t x,uint16_t y, |
|---|
| 621 | const unsigned long a_char, bgfx_font_t *font_p,bgfx_pixel c, |
|---|
| 622 | bgfx_glyph_t * p_bgfx_glyph,bgfx_text_style style) |
|---|
| 623 | { |
|---|
| 624 | int max_width,ybase; |
|---|
| 625 | uint16_t row; |
|---|
| 626 | uint8_t *src,*dst; |
|---|
| 627 | bgfx_glyph_t * bgfx_glyph = p_bgfx_glyph; |
|---|
| 628 | unsigned char glyph_width; /* width of the rendered character bitmap in pixels */ |
|---|
| 629 | unsigned char glyph_height; /* height of the rendered character bitmap in pixels */ |
|---|
| 630 | |
|---|
| 631 | ybase = y; |
|---|
| 632 | if (x > p->surface.width) |
|---|
| 633 | { |
|---|
| 634 | BGFX_TRACE(("bgfx_render_glyph x > width (%d,%d)\n",x,p->surface.width)); |
|---|
| 635 | return 0; |
|---|
| 636 | } |
|---|
| 637 | |
|---|
| 638 | /* if using glyph cache use the get glyph rather than render directly to surface buffer */ |
|---|
| 639 | if (!bgfx_glyph && (font_p->cache_size > 0)) |
|---|
| 640 | { |
|---|
| 641 | bgfx_glyph = bgfx_get_glyph(font_p,a_char); |
|---|
| 642 | } |
|---|
| 643 | |
|---|
| 644 | if (!bgfx_glyph) |
|---|
| 645 | { |
|---|
| 646 | BGFX_DEBUG(("bgfx_render_glyph could not load glyph 0x%08lx\n",a_char)); |
|---|
| 647 | return 0; |
|---|
| 648 | } |
|---|
| 649 | BGFX_TRACE(("bgfx_render_glyph glyph (%p,%d,%d)\n",bgfx_glyph->buf,bgfx_glyph->height,bgfx_glyph->width)); |
|---|
| 650 | |
|---|
| 651 | glyph_width = bgfx_glyph->width; |
|---|
| 652 | glyph_height = bgfx_glyph->height; |
|---|
| 653 | |
|---|
| 654 | if (bgfx_glyph->left + x > 0) |
|---|
| 655 | x += bgfx_glyph->left; |
|---|
| 656 | if (y-bgfx_glyph->top > 0) |
|---|
| 657 | y -= bgfx_glyph->top; |
|---|
| 658 | else |
|---|
| 659 | y = 0; |
|---|
| 660 | |
|---|
| 661 | if (glyph_height + y > p->surface.height) |
|---|
| 662 | glyph_height = p->surface.height - y; |
|---|
| 663 | if (glyph_width + x > p->surface.width) |
|---|
| 664 | glyph_width = p->surface.width - x; |
|---|
| 665 | |
|---|
| 666 | src = (uint8_t*)bgfx_glyph->buf; |
|---|
| 667 | dst = (uint8_t*)p->surface.buf; |
|---|
| 668 | |
|---|
| 669 | BGFX_TRACE(("bgfx_render_glyph suface (%p(y = %d,x = %d,pitch = %d,bpp = %d)\n",dst,y,x,p->surface.pitch, p->bpp)); |
|---|
| 670 | |
|---|
| 671 | dst += y * p->surface.pitch + x * p->bpp/8; |
|---|
| 672 | if (style & eBGFX_ITALIC) |
|---|
| 673 | max_width = BGFX_MIN(glyph_width + IT_OFFSET, p->surface.width - x); |
|---|
| 674 | else |
|---|
| 675 | max_width = BGFX_MIN(glyph_width, p->surface.width - x); |
|---|
| 676 | |
|---|
| 677 | if (max_width <= 0) |
|---|
| 678 | { |
|---|
| 679 | if (glyph_width != 0) |
|---|
| 680 | { |
|---|
| 681 | BGFX_TRACE(("bgfx_render_glyph glyph_width = %d\n", glyph_width)); |
|---|
| 682 | } |
|---|
| 683 | return bgfx_glyph->advance; |
|---|
| 684 | } |
|---|
| 685 | |
|---|
| 686 | /* Render mono glyph */ |
|---|
| 687 | if (font_p->format & BGFX_MONO) |
|---|
| 688 | { |
|---|
| 689 | BGFX_TRACE(("bgfx_render_glyph Alpha 1 font\n")); |
|---|
| 690 | |
|---|
| 691 | if (p->flags & BGFX_SURF_RGB) |
|---|
| 692 | { |
|---|
| 693 | for (row = 0; row < glyph_height; row++) |
|---|
| 694 | { |
|---|
| 695 | bgfx_render_a1_to_rgb( src, dst, max_width,c ); |
|---|
| 696 | |
|---|
| 697 | src += bgfx_glyph->pitch; |
|---|
| 698 | dst += p->surface.pitch; |
|---|
| 699 | } |
|---|
| 700 | } |
|---|
| 701 | else if (p->bpp == 8) |
|---|
| 702 | { |
|---|
| 703 | for (row = 0; row < glyph_height; row++) |
|---|
| 704 | { |
|---|
| 705 | bgfx_render_a1_to_clut8( src, dst, max_width,c ); |
|---|
| 706 | |
|---|
| 707 | src += bgfx_glyph->pitch; |
|---|
| 708 | dst += p->surface.pitch; |
|---|
| 709 | } |
|---|
| 710 | } |
|---|
| 711 | else |
|---|
| 712 | { |
|---|
| 713 | uint16_t adjx = x; |
|---|
| 714 | for (row = 0; row < glyph_height; row++) |
|---|
| 715 | { |
|---|
| 716 | if (style & eBGFX_ITALIC) |
|---|
| 717 | { |
|---|
| 718 | adjx = x + IT_OFFSET - ((row * IT_OFFSET)/glyph_height); |
|---|
| 719 | dst = (uint8_t*)p->surface.buf; |
|---|
| 720 | dst += (y + row) * p->surface.pitch + adjx * p->bpp/8; |
|---|
| 721 | } |
|---|
| 722 | bgfx_render_a1_to_clut4( src, dst, max_width,c, adjx & 0x1 ); |
|---|
| 723 | |
|---|
| 724 | src += bgfx_glyph->pitch; |
|---|
| 725 | dst += p->surface.pitch; |
|---|
| 726 | } |
|---|
| 727 | } |
|---|
| 728 | } |
|---|
| 729 | else /* Render 8 bit grayscale glyph */ |
|---|
| 730 | { |
|---|
| 731 | BGFX_TRACE(("bgfx_render_glyph Alpha 8 font\n")); |
|---|
| 732 | if (p->flags & BGFX_SURF_RGB) |
|---|
| 733 | { |
|---|
| 734 | for (row = 0; row < glyph_height; row++) |
|---|
| 735 | { |
|---|
| 736 | bgfx_render_a8_to_rgb( src, dst, glyph_width,c); |
|---|
| 737 | |
|---|
| 738 | src += bgfx_glyph->pitch; |
|---|
| 739 | dst += p->surface.pitch; |
|---|
| 740 | } |
|---|
| 741 | } |
|---|
| 742 | else if (p->bpp == 8) |
|---|
| 743 | { |
|---|
| 744 | for (row = 0; row < glyph_height; row++) |
|---|
| 745 | { |
|---|
| 746 | bgfx_render_a8_to_clut8( src, dst, glyph_width,c ); |
|---|
| 747 | |
|---|
| 748 | src += bgfx_glyph->pitch; |
|---|
| 749 | dst += p->surface.pitch; |
|---|
| 750 | } |
|---|
| 751 | } |
|---|
| 752 | else |
|---|
| 753 | { |
|---|
| 754 | for (row = 0; row < glyph_height; row++) |
|---|
| 755 | { |
|---|
| 756 | bgfx_render_a8_to_clut4( src, dst, glyph_width,c ); |
|---|
| 757 | |
|---|
| 758 | src += bgfx_glyph->pitch; |
|---|
| 759 | dst += p->surface.pitch; |
|---|
| 760 | } |
|---|
| 761 | } |
|---|
| 762 | } |
|---|
| 763 | if (style & eBGFX_UNDERLINE) |
|---|
| 764 | bgfx_h_draw_line(p,x,x + bgfx_glyph->advance,ybase,c); |
|---|
| 765 | return bgfx_glyph->advance; |
|---|
| 766 | } |
|---|
| 767 | |
|---|
| 768 | /**************************************************************** |
|---|
| 769 | * bgfx_draw_text |
|---|
| 770 | * |
|---|
| 771 | * INPUTS: p - surface structure |
|---|
| 772 | * x,y - coordinates |
|---|
| 773 | * str_p - array of 32-bit unicode characters |
|---|
| 774 | str_len - number of 32-bit characters in array |
|---|
| 775 | * font_p - font definition |
|---|
| 776 | * c - color |
|---|
| 777 | * OUTPUTS: none |
|---|
| 778 | * RETURNS: none |
|---|
| 779 | * FUNCTION: Fill the rectangle with pixels defined by the value c. |
|---|
| 780 | * |
|---|
| 781 | ****************************************************************/ |
|---|
| 782 | void bgfx_draw_text(bgfx_surf_p p,uint16_t x,uint16_t y, |
|---|
| 783 | const unsigned long *str_p, int str_len, |
|---|
| 784 | bgfx_font_t *font_p,bgfx_pixel c, bgfx_text_style style) |
|---|
| 785 | { |
|---|
| 786 | int offset; |
|---|
| 787 | |
|---|
| 788 | BGFX_TRACE(("bgfx_draw_text %ld characters.\n",str_len)); |
|---|
| 789 | |
|---|
| 790 | for (offset = 0; offset < str_len; offset++) |
|---|
| 791 | { |
|---|
| 792 | x += bgfx_render_glyph(p,x,y, str_p[offset], font_p,c,NULL,style); |
|---|
| 793 | } |
|---|
| 794 | bgfx_cacheflush(p->surface.buf,p->surface.pitch * p->surface.height); |
|---|
| 795 | } |
|---|
| 796 | /**************************************************************** |
|---|
| 797 | * bgfx_draw_text_box |
|---|
| 798 | * |
|---|
| 799 | * INPUTS: p - surface structure |
|---|
| 800 | * x,y - coordinates |
|---|
| 801 | * width,height - width and hegith of the text box to draw |
|---|
| 802 | * str_p - array of 32-bit unicode characters |
|---|
| 803 | str_len - number of 32-bit characters in array |
|---|
| 804 | * font_p - font definition |
|---|
| 805 | * c - color |
|---|
| 806 | line_spacing - line space |
|---|
| 807 | * OUTPUTS: none |
|---|
| 808 | * RETURNS: none |
|---|
| 809 | * FUNCTION: Fill the rectangle with pixels defined by the value c. |
|---|
| 810 | * |
|---|
| 811 | ****************************************************************/ |
|---|
| 812 | #define MAX_TEXT_BOX_CHARS 512 |
|---|
| 813 | #define MAX_LINES 16 |
|---|
| 814 | static unsigned long s_test_char = 0x00000057UL; |
|---|
| 815 | /* TODO: Might want to improve macro to check for chars other than spaces */ |
|---|
| 816 | #define BGFX_IS_BREAK(x) ((x == 0x00000020) ? 1 : 0) |
|---|
| 817 | |
|---|
| 818 | void bgfx_draw_text_box(bgfx_surf_p p,uint16_t x,uint16_t y, |
|---|
| 819 | uint16_t width, uint16_t height, |
|---|
| 820 | const unsigned long *str_p, int str_len, |
|---|
| 821 | bgfx_font_t *font_p,bgfx_pixel c, |
|---|
| 822 | uint16_t line_spacing) |
|---|
| 823 | { |
|---|
| 824 | int offset,bw_off,line_idx; |
|---|
| 825 | static bgfx_glyph_t * p_bgfx_glyph[MAX_TEXT_BOX_CHARS]; /* Not thread safe */ |
|---|
| 826 | static uint8_t brk_loc[MAX_TEXT_BOX_CHARS]; |
|---|
| 827 | uint16_t max_h[MAX_LINES],ch_w,test_max_h,bot; |
|---|
| 828 | bgfx_glyph_t *p_test_glyph; |
|---|
| 829 | |
|---|
| 830 | BGFX_TRACE(("bgfx_draw_text_box(%d,%d,%d,%d,%d) %ld characters.\n",x,y,width,height,line_spacing,str_len)); |
|---|
| 831 | if (str_len > MAX_TEXT_BOX_CHARS) |
|---|
| 832 | { |
|---|
| 833 | BGFX_DEBUG(("bgfx_draw_text %d > %d maximum characters.\n",str_len,MAX_TEXT_BOX_CHARS)); |
|---|
| 834 | str_len = MAX_TEXT_BOX_CHARS; |
|---|
| 835 | } |
|---|
| 836 | bot = y + height; |
|---|
| 837 | p_test_glyph = bgfx_get_glyph(font_p,s_test_char); |
|---|
| 838 | if (p_test_glyph) |
|---|
| 839 | test_max_h = p_test_glyph->height; |
|---|
| 840 | else |
|---|
| 841 | test_max_h = 0; |
|---|
| 842 | |
|---|
| 843 | for (line_idx = 0; line_idx < MAX_LINES; ++line_idx) |
|---|
| 844 | max_h[line_idx] = test_max_h; |
|---|
| 845 | |
|---|
| 846 | ch_w = 0; |
|---|
| 847 | line_idx = 0; |
|---|
| 848 | for (offset = 0; offset < str_len; offset++) |
|---|
| 849 | { |
|---|
| 850 | brk_loc[offset] = 0; |
|---|
| 851 | p_bgfx_glyph[offset] = bgfx_get_glyph(font_p,str_p[offset]); |
|---|
| 852 | if (p_bgfx_glyph[offset] == NULL) |
|---|
| 853 | { |
|---|
| 854 | BGFX_DEBUG(("%s:%d str[%d] = 0x%08x\n",__FUNCTION__,__LINE__,offset,str_p[offset])); |
|---|
| 855 | /* if not a printable charactor, then use space instead */ |
|---|
| 856 | p_bgfx_glyph[offset] = bgfx_get_glyph(font_p,0x00000020); |
|---|
| 857 | continue; |
|---|
| 858 | } |
|---|
| 859 | ch_w += p_bgfx_glyph[offset]->advance; |
|---|
| 860 | |
|---|
| 861 | if (p_bgfx_glyph[offset]->height > max_h[line_idx]) |
|---|
| 862 | max_h[line_idx] = p_bgfx_glyph[offset]->height; |
|---|
| 863 | |
|---|
| 864 | if (ch_w >= width) |
|---|
| 865 | { |
|---|
| 866 | line_idx++; |
|---|
| 867 | for (bw_off = offset - 1; bw_off >= 0; --bw_off) |
|---|
| 868 | { |
|---|
| 869 | if (brk_loc[bw_off]) { |
|---|
| 870 | bw_off = -1; |
|---|
| 871 | break; |
|---|
| 872 | } |
|---|
| 873 | if (BGFX_IS_BREAK(str_p[bw_off])) |
|---|
| 874 | { |
|---|
| 875 | brk_loc[bw_off] = 1; |
|---|
| 876 | break; |
|---|
| 877 | } |
|---|
| 878 | } |
|---|
| 879 | |
|---|
| 880 | /* last resort, break on preceding character */ |
|---|
| 881 | if (bw_off < 0) |
|---|
| 882 | { |
|---|
| 883 | brk_loc[offset - 1] = 1; |
|---|
| 884 | ch_w = p_bgfx_glyph[offset]->advance; |
|---|
| 885 | } |
|---|
| 886 | else |
|---|
| 887 | { |
|---|
| 888 | offset = bw_off; |
|---|
| 889 | ch_w = 0; |
|---|
| 890 | } |
|---|
| 891 | } |
|---|
| 892 | } |
|---|
| 893 | |
|---|
| 894 | /* offset y so text is inside box */ |
|---|
| 895 | line_idx = 0; |
|---|
| 896 | #ifdef BGFX_VARIABL_LINE_HEIGHT |
|---|
| 897 | y += max_h[line_idx]; |
|---|
| 898 | #else |
|---|
| 899 | y += test_max_h; |
|---|
| 900 | #endif |
|---|
| 901 | ch_w = 0; |
|---|
| 902 | |
|---|
| 903 | for (offset = 0; (offset < str_len) && (line_idx < MAX_LINES); offset++) |
|---|
| 904 | { |
|---|
| 905 | if (brk_loc[offset]) |
|---|
| 906 | { |
|---|
| 907 | line_idx++; |
|---|
| 908 | ch_w = 0; |
|---|
| 909 | #ifdef BGFX_VARIABL_LINE_HEIGHT |
|---|
| 910 | y += line_spacing + max_h[line_idx]; |
|---|
| 911 | if ((y - max_h[line_idx]) > bot) |
|---|
| 912 | break; |
|---|
| 913 | #else |
|---|
| 914 | y += line_spacing + test_max_h; |
|---|
| 915 | if ((y - test_max_h) > bot) |
|---|
| 916 | break; |
|---|
| 917 | #endif |
|---|
| 918 | continue; |
|---|
| 919 | } |
|---|
| 920 | ch_w += bgfx_render_glyph(p,x + ch_w,y, str_p[offset], font_p,c,p_bgfx_glyph[offset],eBGFX_NORMAL); |
|---|
| 921 | } |
|---|
| 922 | bgfx_cacheflush(p->surface.buf,p->surface.pitch * p->surface.height); |
|---|
| 923 | } |
|---|
| 924 | |
|---|
| 925 | /**************************************************************** |
|---|
| 926 | * bgfx_render_file |
|---|
| 927 | * |
|---|
| 928 | * INPUTS: p - surface structure |
|---|
| 929 | * x,y - coordinates |
|---|
| 930 | * file_p - file to get image from |
|---|
| 931 | * set_palette - use the palette in the file to set the |
|---|
| 932 | * global palette. |
|---|
| 933 | * OUTPUTS: none |
|---|
| 934 | * RETURNS: non-zero on error |
|---|
| 935 | * FUNCTION: Render the image in the file to the x,y location |
|---|
| 936 | * |
|---|
| 937 | ****************************************************************/ |
|---|
| 938 | |
|---|
| 939 | int bgfx_render_file(bgfx_surf_p p,uint16_t x,uint16_t y, |
|---|
| 940 | void *file_p,int set_palette) |
|---|
| 941 | { |
|---|
| 942 | bcm_raw_8_t header; |
|---|
| 943 | int result = -1; |
|---|
| 944 | static uint8_t tbuf[SURF_WIDTH]; |
|---|
| 945 | uint16_t row,rows,rowbytes; |
|---|
| 946 | uint8_t *dst_ptr; |
|---|
| 947 | int palette_bytes; |
|---|
| 948 | uint16_t i; |
|---|
| 949 | uint8_t *r_ptr,*tdst; |
|---|
| 950 | |
|---|
| 951 | if (bgfx_read(&header,1,sizeof(header),file_p) == sizeof(header)) |
|---|
| 952 | { |
|---|
| 953 | if (header.type != RAW_TYPE || header.version != RAW_VERSION) |
|---|
| 954 | { |
|---|
| 955 | BGFX_DEBUG(("bgfx_render_file failed version,type invalid(0x%08lx,0x%08lx)\n",header.type,header.version)); |
|---|
| 956 | return -1; |
|---|
| 957 | } |
|---|
| 958 | BGFX_TRACE(("header.version = 0x%08lx\n",header.version)); |
|---|
| 959 | BGFX_TRACE(("header.type = 0x%08lx\n",header.type)); |
|---|
| 960 | BGFX_TRACE(("header.clut_size = %d\n",header.clut_size)); |
|---|
| 961 | BGFX_TRACE(("header.color_key = 0x%02x\n",header.color_key)); |
|---|
| 962 | BGFX_TRACE(("header.pitch = %ld\n",header.pitch)); |
|---|
| 963 | BGFX_TRACE(("header.width = 0x%08x\n",header.width)); |
|---|
| 964 | BGFX_TRACE(("header.height = 0x%08x\n",header.height)); |
|---|
| 965 | |
|---|
| 966 | palette_bytes = (sizeof(unsigned long) * header.clut_size); |
|---|
| 967 | if (bgfx_read(&p->palette,1,palette_bytes,file_p) == palette_bytes) |
|---|
| 968 | { |
|---|
| 969 | if (set_palette && (header.clut_size == PALETTE_SIZE)) |
|---|
| 970 | bgfx_set_palette(p,&p->palette); |
|---|
| 971 | } |
|---|
| 972 | |
|---|
| 973 | if ((header.width == p->surface.width) && (header.height == p->surface.height) && |
|---|
| 974 | (p->surface.pitch == header.pitch) && (x == 0) && (y == 0) |
|---|
| 975 | && !(p->flags & BGFX_SURF_RGB)) |
|---|
| 976 | { |
|---|
| 977 | BGFX_TRACE(("Fast Render\n")); |
|---|
| 978 | bgfx_read(p->surface.buf,1,header.pitch*header.height,file_p); |
|---|
| 979 | } |
|---|
| 980 | else if ((p->palette.clut[header.color_key] & 0xFF000000) != 0) |
|---|
| 981 | { |
|---|
| 982 | BGFX_TRACE(("Render - no color key\n")); |
|---|
| 983 | rowbytes = BGFX_MIN(header.width,p->surface.width - x) * p->bpp/8; |
|---|
| 984 | rows = BGFX_MIN(header.height, p->surface.height - y); |
|---|
| 985 | |
|---|
| 986 | dst_ptr = (uint8_t*)p->surface.buf; |
|---|
| 987 | dst_ptr += y * p->surface.pitch + x * p->bpp/8; |
|---|
| 988 | |
|---|
| 989 | if (p->flags & BGFX_SURF_RGB) |
|---|
| 990 | { |
|---|
| 991 | for (row = 0; row < rows; row++) |
|---|
| 992 | { |
|---|
| 993 | bgfx_read(tbuf ,1,rowbytes,file_p); |
|---|
| 994 | r_ptr = dst_ptr; |
|---|
| 995 | for (i = 0; i < rowbytes; ++i) |
|---|
| 996 | { |
|---|
| 997 | uint32_t sr,sg,sb,sa,dr,dg,db,da,src_c; |
|---|
| 998 | src_c = bgfx_clut8_to_rgb(p->palette.clut,tbuf[i]); |
|---|
| 999 | sa = (src_c >> 24) & 0xFF; |
|---|
| 1000 | if (sa == 0xFF) |
|---|
| 1001 | { |
|---|
| 1002 | *((uint32_t*)r_ptr) = src_c; |
|---|
| 1003 | } |
|---|
| 1004 | else |
|---|
| 1005 | { |
|---|
| 1006 | sr = (src_c >> 16) & 0xFF; |
|---|
| 1007 | sg = (src_c >> 8) & 0xFF; |
|---|
| 1008 | sb = (src_c >> 0) & 0xFF; |
|---|
| 1009 | da = (*((uint32_t*)r_ptr) >> 24) & 0xFF; |
|---|
| 1010 | dr = (*((uint32_t*)r_ptr) >> 16) & 0xFF; |
|---|
| 1011 | dg = (*((uint32_t*)r_ptr) >> 8) & 0xFF; |
|---|
| 1012 | db = (*((uint32_t*)r_ptr) >> 0) & 0xFF; |
|---|
| 1013 | |
|---|
| 1014 | dr = (((sr * sa)/0xFF) & 0xFF) + ((((0xFF - sa) * dr)/0xFF) & 0xFF); |
|---|
| 1015 | dg = (((sg * sa)/0xFF) & 0xFF) + ((((0xFF - sa) * dg)/0xFF) & 0xFF); |
|---|
| 1016 | db = (((sb * sa)/0xFF) & 0xFF) + ((((0xFF - sa) * db)/0xFF) & 0xFF); |
|---|
| 1017 | |
|---|
| 1018 | *((uint32_t*)r_ptr) = (da << 24) | (dr << 16) | (dg << 8) | db; |
|---|
| 1019 | } |
|---|
| 1020 | r_ptr += p->bpp/8; |
|---|
| 1021 | } |
|---|
| 1022 | |
|---|
| 1023 | if (header.pitch > rowbytes) |
|---|
| 1024 | { |
|---|
| 1025 | bgfx_read(tbuf ,1,header.pitch - rowbytes,file_p); |
|---|
| 1026 | } |
|---|
| 1027 | dst_ptr += p->surface.pitch; |
|---|
| 1028 | } |
|---|
| 1029 | } |
|---|
| 1030 | else |
|---|
| 1031 | { |
|---|
| 1032 | for (row = 0; row < rows; row++) |
|---|
| 1033 | { |
|---|
| 1034 | bgfx_read(dst_ptr ,1,rowbytes,file_p); |
|---|
| 1035 | if (header.pitch > rowbytes) |
|---|
| 1036 | { |
|---|
| 1037 | bgfx_read(tbuf ,1,header.pitch - rowbytes,file_p); |
|---|
| 1038 | } |
|---|
| 1039 | dst_ptr += p->surface.pitch; |
|---|
| 1040 | } |
|---|
| 1041 | } |
|---|
| 1042 | } |
|---|
| 1043 | else |
|---|
| 1044 | { |
|---|
| 1045 | BGFX_TRACE(("Render - color key\n")); |
|---|
| 1046 | rowbytes = BGFX_MIN(header.width,(p->surface.width - x)) * p->bpp/8; |
|---|
| 1047 | rows = BGFX_MIN(header.height, (p->surface.height - y)); |
|---|
| 1048 | dst_ptr = (uint8_t*)p->surface.buf; |
|---|
| 1049 | dst_ptr += y * p->surface.pitch + x * p->bpp/8; |
|---|
| 1050 | |
|---|
| 1051 | if (p->flags & BGFX_SURF_RGB) |
|---|
| 1052 | { |
|---|
| 1053 | for (row = 0; row < rows; row++) |
|---|
| 1054 | { |
|---|
| 1055 | bgfx_read(tbuf ,1,rowbytes,file_p); |
|---|
| 1056 | r_ptr = dst_ptr; |
|---|
| 1057 | for (i = 0; i < rowbytes; ++i) |
|---|
| 1058 | { |
|---|
| 1059 | if (tbuf[i] != header.color_key) |
|---|
| 1060 | { |
|---|
| 1061 | uint32_t sr,sg,sb,sa,dr,dg,db,da,src_c; |
|---|
| 1062 | src_c = bgfx_clut8_to_rgb(p->palette.clut,tbuf[i]); |
|---|
| 1063 | sa = (src_c >> 24) & 0xFF; |
|---|
| 1064 | if (sa == 0xFF) |
|---|
| 1065 | { |
|---|
| 1066 | *((uint32_t*)r_ptr) = src_c; |
|---|
| 1067 | } |
|---|
| 1068 | else |
|---|
| 1069 | { |
|---|
| 1070 | sr = (src_c >> 16) & 0xFF; |
|---|
| 1071 | sg = (src_c >> 8) & 0xFF; |
|---|
| 1072 | sb = (src_c >> 0) & 0xFF; |
|---|
| 1073 | da = (*((uint32_t*)r_ptr) >> 24) & 0xFF; |
|---|
| 1074 | dr = (*((uint32_t*)r_ptr) >> 16) & 0xFF; |
|---|
| 1075 | dg = (*((uint32_t*)r_ptr) >> 8) & 0xFF; |
|---|
| 1076 | db = (*((uint32_t*)r_ptr) >> 0) & 0xFF; |
|---|
| 1077 | |
|---|
| 1078 | dr = (((sr * sa)/0xFF) & 0xFF) + ((((0xFF - sa) * dr)/0xFF) & 0xFF); |
|---|
| 1079 | dg = (((sg * sa)/0xFF) & 0xFF) + ((((0xFF - sa) * dg)/0xFF) & 0xFF); |
|---|
| 1080 | db = (((sb * sa)/0xFF) & 0xFF) + ((((0xFF - sa) * db)/0xFF) & 0xFF); |
|---|
| 1081 | *((uint32_t*)r_ptr) = (da << 24) | (dr << 16) | (dg << 8) | db; |
|---|
| 1082 | } |
|---|
| 1083 | } |
|---|
| 1084 | r_ptr += p->bpp/8; |
|---|
| 1085 | } |
|---|
| 1086 | if (header.pitch > rowbytes) |
|---|
| 1087 | { |
|---|
| 1088 | bgfx_read(tbuf ,1,header.pitch - rowbytes,file_p); |
|---|
| 1089 | } |
|---|
| 1090 | dst_ptr += p->surface.pitch; |
|---|
| 1091 | } |
|---|
| 1092 | } |
|---|
| 1093 | else |
|---|
| 1094 | { |
|---|
| 1095 | for (row = 0; row < rows; row++) |
|---|
| 1096 | { |
|---|
| 1097 | bgfx_read(dst_ptr ,1,rowbytes,file_p); |
|---|
| 1098 | if (header.pitch > rowbytes) |
|---|
| 1099 | { |
|---|
| 1100 | bgfx_read(tbuf ,1,header.pitch - rowbytes,file_p); |
|---|
| 1101 | } |
|---|
| 1102 | dst_ptr += p->surface.pitch; |
|---|
| 1103 | } |
|---|
| 1104 | } |
|---|
| 1105 | } |
|---|
| 1106 | } |
|---|
| 1107 | BGFX_TRACE(("Render - done\n")); |
|---|
| 1108 | bgfx_cacheflush(p->surface.buf,p->surface.pitch * p->surface.height); |
|---|
| 1109 | result = 0; |
|---|
| 1110 | return result; |
|---|
| 1111 | } |
|---|
| 1112 | |
|---|
| 1113 | /**************************************************************** |
|---|
| 1114 | * bgfx_blit |
|---|
| 1115 | * |
|---|
| 1116 | * INPUTS: p_src,p_dst - surface structure |
|---|
| 1117 | * x,y - destination coordinates |
|---|
| 1118 | * OUTPUTS: none |
|---|
| 1119 | * RETURNS: non-zero on error |
|---|
| 1120 | * FUNCTION: Blit between the two surfaces, only the destination can be RGB |
|---|
| 1121 | * |
|---|
| 1122 | ****************************************************************/ |
|---|
| 1123 | |
|---|
| 1124 | int bgfx_blit(bgfx_surf_p p_src, bgfx_surf_p p_dst, uint16_t x,uint16_t y) |
|---|
| 1125 | { |
|---|
| 1126 | uint8_t *dst,*src; |
|---|
| 1127 | uint16_t j,w,h,rowbytes; |
|---|
| 1128 | uint16_t i; |
|---|
| 1129 | uint8_t *tdst; |
|---|
| 1130 | |
|---|
| 1131 | BGFX_TRACE(("bgfx_blit x,y (%d,%d)\n",x,y)); |
|---|
| 1132 | |
|---|
| 1133 | if ((x > p_dst->surface.width) || (y > p_dst->surface.height)) |
|---|
| 1134 | { |
|---|
| 1135 | BGFX_DEBUG(("bgfx_blit x,y (%d,%d) outside destination (%d,%d)\n",x,y, |
|---|
| 1136 | p_dst->surface.width,p_dst->surface.height)); |
|---|
| 1137 | return -1; |
|---|
| 1138 | } |
|---|
| 1139 | |
|---|
| 1140 | w = p_src->surface.width; |
|---|
| 1141 | if (w > p_dst->surface.width - x) |
|---|
| 1142 | w = p_dst->surface.width - x; |
|---|
| 1143 | h = p_src->surface.height; |
|---|
| 1144 | if (h > p_dst->surface.height - y) |
|---|
| 1145 | h = p_dst->surface.height - y; |
|---|
| 1146 | |
|---|
| 1147 | src = (uint8_t*)p_src->surface.buf; |
|---|
| 1148 | dst = (uint8_t*)p_dst->surface.buf; |
|---|
| 1149 | dst += y * p_dst->surface.pitch + x * p_dst->bpp/8; |
|---|
| 1150 | |
|---|
| 1151 | if (p_dst->flags & BGFX_SURF_RGB) |
|---|
| 1152 | { |
|---|
| 1153 | for (j = 0; j < h; ++j) |
|---|
| 1154 | { |
|---|
| 1155 | tdst = dst; |
|---|
| 1156 | for (i = 0; i < w; ++i) |
|---|
| 1157 | { |
|---|
| 1158 | if (src[i] != 0xFF) |
|---|
| 1159 | *((uint32_t*)tdst) = bgfx_clut8_to_rgb(p_src->palette.clut,src[i]); |
|---|
| 1160 | tdst += p_dst->bpp/8; |
|---|
| 1161 | } |
|---|
| 1162 | dst += p_dst->surface.pitch; |
|---|
| 1163 | src += p_src->surface.pitch; |
|---|
| 1164 | } |
|---|
| 1165 | } |
|---|
| 1166 | else |
|---|
| 1167 | { |
|---|
| 1168 | rowbytes = BGFX_MIN(p_src->surface.width,p_dst->surface.width - x) * p_dst->bpp/8; |
|---|
| 1169 | for (j = 0; j < h; ++j) |
|---|
| 1170 | { |
|---|
| 1171 | BGFX_MEMCPY(dst,src,rowbytes); |
|---|
| 1172 | dst += p_dst->surface.pitch; |
|---|
| 1173 | src += p_src->surface.pitch; |
|---|
| 1174 | } |
|---|
| 1175 | } |
|---|
| 1176 | bgfx_cacheflush(p_dst->surface.buf,p_dst->surface.pitch * p_dst->surface.height); |
|---|
| 1177 | return 0; |
|---|
| 1178 | } |
|---|
| 1179 | /**************************************************************** |
|---|
| 1180 | * INPUTS: p_src,p_dst - source and destination buffer pointers |
|---|
| 1181 | * sx |
|---|
| 1182 | * dx |
|---|
| 1183 | * w - width |
|---|
| 1184 | * OUTPUTS: none |
|---|
| 1185 | * RETURNS: non-zero on error |
|---|
| 1186 | * FUNCTION: Blit a region of one surface to another (for 4 bpp ) |
|---|
| 1187 | * |
|---|
| 1188 | ****************************************************************/ |
|---|
| 1189 | |
|---|
| 1190 | static inline void bgfx_row_copy(unsigned char *src, unsigned char *dst, |
|---|
| 1191 | uint16_t sx,uint16_t dx,uint16_t w, int bpp) |
|---|
| 1192 | { |
|---|
| 1193 | if (bpp == 8) |
|---|
| 1194 | { |
|---|
| 1195 | BGFX_MEMCPY(dst,src,w); |
|---|
| 1196 | } |
|---|
| 1197 | else |
|---|
| 1198 | { |
|---|
| 1199 | unsigned int num_bytes = (w * 4)/8; |
|---|
| 1200 | int pix; |
|---|
| 1201 | |
|---|
| 1202 | if (sx & 1) |
|---|
| 1203 | { |
|---|
| 1204 | if (dx & 1) |
|---|
| 1205 | { |
|---|
| 1206 | *dst &= 0xF0; |
|---|
| 1207 | *dst |= (*src & 0xF); |
|---|
| 1208 | if (w & 1) |
|---|
| 1209 | { |
|---|
| 1210 | BGFX_MEMCPY(&dst[1],&src[1],num_bytes); |
|---|
| 1211 | } |
|---|
| 1212 | else |
|---|
| 1213 | { |
|---|
| 1214 | BGFX_MEMCPY(&dst[1],&src[1],num_bytes - 1); |
|---|
| 1215 | dst[num_bytes] &= 0x0F; |
|---|
| 1216 | dst[num_bytes] |= (src[num_bytes] & 0xF0); |
|---|
| 1217 | } |
|---|
| 1218 | } |
|---|
| 1219 | else |
|---|
| 1220 | { |
|---|
| 1221 | for (pix = 0; pix < w; ++pix) |
|---|
| 1222 | { |
|---|
| 1223 | if (pix & 1) |
|---|
| 1224 | { |
|---|
| 1225 | *dst &= 0xF0; |
|---|
| 1226 | *dst |= (*src & 0xF0) >> 4; |
|---|
| 1227 | dst++; |
|---|
| 1228 | } |
|---|
| 1229 | else |
|---|
| 1230 | { |
|---|
| 1231 | *dst &= 0x0F; |
|---|
| 1232 | *dst |= (*src & 0xF) << 4; |
|---|
| 1233 | src++; |
|---|
| 1234 | } |
|---|
| 1235 | } |
|---|
| 1236 | } |
|---|
| 1237 | } |
|---|
| 1238 | else |
|---|
| 1239 | { |
|---|
| 1240 | if (dx & 1) |
|---|
| 1241 | { |
|---|
| 1242 | for (pix = 0; pix < w; ++pix) |
|---|
| 1243 | { |
|---|
| 1244 | if (pix & 1) |
|---|
| 1245 | { |
|---|
| 1246 | *dst &= 0x0F; |
|---|
| 1247 | *dst |= (*src & 0xF) << 4; |
|---|
| 1248 | src++; |
|---|
| 1249 | } |
|---|
| 1250 | else |
|---|
| 1251 | { |
|---|
| 1252 | *dst &= 0xF0; |
|---|
| 1253 | *dst |= (*src & 0xF0) >> 4; |
|---|
| 1254 | dst++; |
|---|
| 1255 | } |
|---|
| 1256 | } |
|---|
| 1257 | } |
|---|
| 1258 | else |
|---|
| 1259 | { |
|---|
| 1260 | if (w & 1) |
|---|
| 1261 | { |
|---|
| 1262 | BGFX_MEMCPY(dst,src,num_bytes); |
|---|
| 1263 | dst[num_bytes] &= 0x0F; |
|---|
| 1264 | dst[num_bytes] |= (src[num_bytes] & 0xF0); |
|---|
| 1265 | } |
|---|
| 1266 | else |
|---|
| 1267 | { |
|---|
| 1268 | BGFX_MEMCPY(dst,src,num_bytes); |
|---|
| 1269 | } |
|---|
| 1270 | } |
|---|
| 1271 | } |
|---|
| 1272 | } |
|---|
| 1273 | } |
|---|
| 1274 | /**************************************************************** |
|---|
| 1275 | * INPUTS: p_src,p_dst - source and destination surface structures |
|---|
| 1276 | * sx,sy - source coordinates |
|---|
| 1277 | * dx,dy - destination coordinates |
|---|
| 1278 | * sw,sh - width and height of region |
|---|
| 1279 | * OUTPUTS: none |
|---|
| 1280 | * RETURNS: non-zero on error |
|---|
| 1281 | * FUNCTION: Blit a region of one surface to another |
|---|
| 1282 | * |
|---|
| 1283 | ****************************************************************/ |
|---|
| 1284 | |
|---|
| 1285 | int bgfx_blit_rect(bgfx_surf_p p_src, bgfx_surf_p p_dst, |
|---|
| 1286 | uint16_t sx,uint16_t sy, uint16_t dx,uint16_t dy, |
|---|
| 1287 | uint16_t sw,uint16_t sh) |
|---|
| 1288 | { |
|---|
| 1289 | uint8_t *dst,*src; |
|---|
| 1290 | uint16_t i,j,w,h; |
|---|
| 1291 | uint8_t *tdst; |
|---|
| 1292 | |
|---|
| 1293 | if ((dx >= p_dst->surface.width) || (dy >= p_dst->surface.height)) |
|---|
| 1294 | { |
|---|
| 1295 | BGFX_DEBUG(("bgfx_blit_rect dst_x,dst_y (%d,%d) outside destination (%d,%d)\n",dx,dy, |
|---|
| 1296 | p_dst->surface.width,p_dst->surface.height)); |
|---|
| 1297 | return -1; |
|---|
| 1298 | } |
|---|
| 1299 | |
|---|
| 1300 | if ((sx >= p_src->surface.width) || (sy >= p_src->surface.height)) |
|---|
| 1301 | { |
|---|
| 1302 | BGFX_DEBUG(("bgfx_blit_rect src_x,src_y (%d,%d) outside source (%d,%d)\n",sx,sy, |
|---|
| 1303 | p_src->surface.width,p_src->surface.height)); |
|---|
| 1304 | return -1; |
|---|
| 1305 | } |
|---|
| 1306 | |
|---|
| 1307 | src = (uint8_t*)p_src->surface.buf; |
|---|
| 1308 | src += (sy * p_src->surface.pitch) + ((sx * p_src->bpp)/8); |
|---|
| 1309 | dst = (uint8_t*)p_dst->surface.buf; |
|---|
| 1310 | dst += (dy * p_dst->surface.pitch) + ((dx * p_dst->bpp)/8); |
|---|
| 1311 | |
|---|
| 1312 | w = sw; |
|---|
| 1313 | |
|---|
| 1314 | if (sw >= (p_src->surface.width - sx)) |
|---|
| 1315 | w= p_src->surface.width - sx; |
|---|
| 1316 | |
|---|
| 1317 | if (w >= p_dst->surface.width - dx) |
|---|
| 1318 | w = p_dst->surface.width - dx; |
|---|
| 1319 | |
|---|
| 1320 | h = sh; |
|---|
| 1321 | |
|---|
| 1322 | if (sh >= (p_src->surface.height - sy)) |
|---|
| 1323 | h= p_src->surface.height - sy; |
|---|
| 1324 | |
|---|
| 1325 | if (h >= p_dst->surface.height - dy) |
|---|
| 1326 | h = p_dst->surface.height - dy; |
|---|
| 1327 | |
|---|
| 1328 | |
|---|
| 1329 | if (p_dst->flags & BGFX_SURF_RGB) |
|---|
| 1330 | { |
|---|
| 1331 | for (j = 0; j < h; ++j) |
|---|
| 1332 | { |
|---|
| 1333 | tdst = dst; |
|---|
| 1334 | for (i = 0; i < w; ++i) |
|---|
| 1335 | { |
|---|
| 1336 | if (src[i] != 0xFF) |
|---|
| 1337 | *((uint32_t*)tdst) = bgfx_clut8_to_rgb(p_src->palette.clut,src[i]); |
|---|
| 1338 | tdst += p_dst->bpp/8; |
|---|
| 1339 | } |
|---|
| 1340 | dst += p_dst->surface.pitch; |
|---|
| 1341 | src += p_src->surface.pitch; |
|---|
| 1342 | } |
|---|
| 1343 | } |
|---|
| 1344 | else |
|---|
| 1345 | { |
|---|
| 1346 | for (j = 0; j < h; ++j) |
|---|
| 1347 | { |
|---|
| 1348 | if (p_dst->bpp == 8) |
|---|
| 1349 | { |
|---|
| 1350 | for (i = 0; i < w; ++i) |
|---|
| 1351 | { |
|---|
| 1352 | if (p_src->palette.clut[src[i]] & 0xFF000000) |
|---|
| 1353 | { |
|---|
| 1354 | dst[i] = src[i]; |
|---|
| 1355 | } |
|---|
| 1356 | } |
|---|
| 1357 | } |
|---|
| 1358 | else |
|---|
| 1359 | { |
|---|
| 1360 | bgfx_row_copy(src,dst,sx,dx,w,p_dst->bpp); |
|---|
| 1361 | } |
|---|
| 1362 | dst += p_dst->surface.pitch; |
|---|
| 1363 | src += p_src->surface.pitch; |
|---|
| 1364 | } |
|---|
| 1365 | } |
|---|
| 1366 | bgfx_cacheflush(p_dst->surface.buf,p_dst->surface.pitch * p_dst->surface.height); |
|---|
| 1367 | return 0; |
|---|
| 1368 | } |
|---|
| 1369 | |
|---|
| 1370 | |
|---|