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00024 #include <stdio.h>
00025 #include <stdlib.h>
00026 #include <string.h>
00027 #include <inttypes.h>
00028 #include <assert.h>
00029 #include "config.h"
00030 #include <unistd.h>
00031 #include "libswscale/rgb2rgb.h"
00032 #include "libswscale/swscale.h"
00033 #include "libswscale/swscale_internal.h"
00034
00035 #if defined(__FDPIC__) && CONFIG_SRAM
00036 #define L1CODE __attribute__ ((l1_text))
00037 #else
00038 #define L1CODE
00039 #endif
00040
00041 void ff_bfin_yuv2rgb555_line(uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
00042 int w, uint32_t *coeffs) L1CODE;
00043
00044 void ff_bfin_yuv2rgb565_line(uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
00045 int w, uint32_t *coeffs) L1CODE;
00046
00047 void ff_bfin_yuv2rgb24_line(uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
00048 int w, uint32_t *coeffs) L1CODE;
00049
00050 typedef void (* ltransform)(uint8_t *Y, uint8_t *U, uint8_t *V, uint8_t *out,
00051 int w, uint32_t *coeffs);
00052
00053
00054 static void bfin_prepare_coefficients(SwsContext *c, int rgb, int masks)
00055 {
00056 int oy;
00057 oy = c->yOffset&0xffff;
00058 oy = oy >> 3;
00059
00060 c->oc = 128*0x01010101U;
00061 c->oy = oy*0x01010101U;
00062
00063
00064 c->cy = c->yCoeff;
00065 c->zero = 0;
00066
00067 if (rgb) {
00068 c->crv = c->vrCoeff;
00069 c->cbu = c->ubCoeff;
00070 c->cgu = c->ugCoeff;
00071 c->cgv = c->vgCoeff;
00072 } else {
00073 c->crv = c->ubCoeff;
00074 c->cbu = c->vrCoeff;
00075 c->cgu = c->vgCoeff;
00076 c->cgv = c->ugCoeff;
00077 }
00078
00079
00080 if (masks == 555) {
00081 c->rmask = 0x001f * 0x00010001U;
00082 c->gmask = 0x03e0 * 0x00010001U;
00083 c->bmask = 0x7c00 * 0x00010001U;
00084 } else if (masks == 565) {
00085 c->rmask = 0x001f * 0x00010001U;
00086 c->gmask = 0x07e0 * 0x00010001U;
00087 c->bmask = 0xf800 * 0x00010001U;
00088 }
00089 }
00090
00091 static int core_yuv420_rgb(SwsContext *c,
00092 uint8_t **in, int *instrides,
00093 int srcSliceY, int srcSliceH,
00094 uint8_t **oplanes, int *outstrides,
00095 ltransform lcscf, int rgb, int masks)
00096 {
00097 uint8_t *py,*pu,*pv,*op;
00098 int w = instrides[0];
00099 int h2 = srcSliceH>>1;
00100 int i;
00101
00102 bfin_prepare_coefficients(c, rgb, masks);
00103
00104 py = in[0];
00105 pu = in[1+(1^rgb)];
00106 pv = in[1+(0^rgb)];
00107
00108 op = oplanes[0] + srcSliceY*outstrides[0];
00109
00110 for (i=0;i<h2;i++) {
00111
00112 lcscf(py, pu, pv, op, w, &c->oy);
00113
00114 py += instrides[0];
00115 op += outstrides[0];
00116
00117 lcscf(py, pu, pv, op, w, &c->oy);
00118
00119 py += instrides[0];
00120 pu += instrides[1];
00121 pv += instrides[2];
00122 op += outstrides[0];
00123 }
00124
00125 return srcSliceH;
00126 }
00127
00128
00129 static int bfin_yuv420_rgb555(SwsContext *c,
00130 uint8_t **in, int *instrides,
00131 int srcSliceY, int srcSliceH,
00132 uint8_t **oplanes, int *outstrides)
00133 {
00134 return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
00135 outstrides, ff_bfin_yuv2rgb555_line, 1, 555);
00136 }
00137
00138 static int bfin_yuv420_bgr555(SwsContext *c,
00139 uint8_t **in, int *instrides,
00140 int srcSliceY, int srcSliceH,
00141 uint8_t **oplanes, int *outstrides)
00142 {
00143 return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
00144 outstrides, ff_bfin_yuv2rgb555_line, 0, 555);
00145 }
00146
00147 static int bfin_yuv420_rgb24(SwsContext *c,
00148 uint8_t **in, int *instrides,
00149 int srcSliceY, int srcSliceH,
00150 uint8_t **oplanes, int *outstrides)
00151 {
00152 return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
00153 outstrides, ff_bfin_yuv2rgb24_line, 1, 888);
00154 }
00155
00156 static int bfin_yuv420_bgr24(SwsContext *c,
00157 uint8_t **in, int *instrides,
00158 int srcSliceY, int srcSliceH,
00159 uint8_t **oplanes, int *outstrides)
00160 {
00161 return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
00162 outstrides, ff_bfin_yuv2rgb24_line, 0, 888);
00163 }
00164
00165 static int bfin_yuv420_rgb565(SwsContext *c,
00166 uint8_t **in, int *instrides,
00167 int srcSliceY, int srcSliceH,
00168 uint8_t **oplanes, int *outstrides)
00169 {
00170 return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
00171 outstrides, ff_bfin_yuv2rgb565_line, 1, 565);
00172 }
00173
00174 static int bfin_yuv420_bgr565(SwsContext *c,
00175 uint8_t **in, int *instrides,
00176 int srcSliceY, int srcSliceH,
00177 uint8_t **oplanes, int *outstrides)
00178 {
00179 return core_yuv420_rgb(c, in, instrides, srcSliceY, srcSliceH, oplanes,
00180 outstrides, ff_bfin_yuv2rgb565_line, 0, 565);
00181 }
00182
00183
00184 SwsFunc ff_yuv2rgb_get_func_ptr_bfin(SwsContext *c)
00185 {
00186 SwsFunc f;
00187
00188 switch(c->dstFormat) {
00189 case PIX_FMT_RGB555: f = bfin_yuv420_rgb555; break;
00190 case PIX_FMT_BGR555: f = bfin_yuv420_bgr555; break;
00191 case PIX_FMT_RGB565: f = bfin_yuv420_rgb565; break;
00192 case PIX_FMT_BGR565: f = bfin_yuv420_bgr565; break;
00193 case PIX_FMT_RGB24: f = bfin_yuv420_rgb24; break;
00194 case PIX_FMT_BGR24: f = bfin_yuv420_bgr24; break;
00195 default:
00196 return 0;
00197 }
00198
00199 av_log(c, AV_LOG_INFO, "BlackFin accelerated color space converter %s\n",
00200 sws_format_name (c->dstFormat));
00201
00202 return f;
00203 }