source/libvpx/vpx_dsp/mips/vpx_convolve2_vert_dspr2.c - Issue 1302353004: libvpx: Pull from upstream

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Issue 1302353004: libvpx: Pull from upstream (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/libvpx.git@master

Patch Set: Created 5 years, 3 months ago

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1 /*

2 * Copyright (c) 2013 The WebM project authors. All Rights Reserved.

3 *

4 * Use of this source code is governed by a BSD-style license

5 * that can be found in the LICENSE file in the root of the source

6 * tree. An additional intellectual property rights grant can be found

7 * in the file PATENTS. All contributing project authors may

8 * be found in the AUTHORS file in the root of the source tree.

9 */

10

11 #include <assert.h>

12 #include <stdio.h>

13

14 #include "./vpx_dsp_rtcd.h"

15 #include "vpx_dsp/mips/vpx_common_dspr2.h"

16 #include "vpx_dsp/vpx_convolve.h"

17 #include "vpx_dsp/vpx_dsp_common.h"

18 #include "vpx_ports/mem.h"

19

20 #if HAVE_DSPR2

21 static void convolve_bi_vert_4_dspr2(const uint8_t *src,

22 int32_t src_stride,

23 uint8_t *dst,

24 int32_t dst_stride,

25 const int16_t *filter_y,

26 int32_t w,

27 int32_t h) {

28 int32_t x, y;

29 const uint8_t *src_ptr;

30 uint8_t *dst_ptr;

31 uint8_t *cm = vpx_ff_cropTbl;

32 uint32_t vector4a = 64;

33 uint32_t load1, load2;

34 uint32_t p1, p2;

35 uint32_t scratch1;

36 uint32_t store1, store2;

37 int32_t Temp1, Temp2;

38 const int16_t *filter = &filter_y[3];

39 uint32_t filter45;

40

41 filter45 = ((const int32_t *)filter)[0];

42

43 for (y = h; y--;) {

44 /* prefetch data to cache memory */

45 prefetch_store(dst + dst_stride);

46

47 for (x = 0; x < w; x += 4) {

48 src_ptr = src + x;

49 dst_ptr = dst + x;

50

51 __asm__ __volatile__ (

52 "ulw %[load1], 0(%[src_ptr]) \n\t"

53 "add %[src_ptr], %[src_ptr], %[src_stride] \n\t"

54 "ulw %[load2], 0(%[src_ptr]) \n\t"

55

56 "mtlo %[vector4a], $ac0 \n\t"

57 "mtlo %[vector4a], $ac1 \n\t"

58 "mtlo %[vector4a], $ac2 \n\t"

59 "mtlo %[vector4a], $ac3 \n\t"

60 "mthi $zero, $ac0 \n\t"

61 "mthi $zero, $ac1 \n\t"

62 "mthi $zero, $ac2 \n\t"

63 "mthi $zero, $ac3 \n\t"

64

65 "preceu.ph.qbr %[scratch1], %[load1] \n\t"

66 "preceu.ph.qbr %[p1], %[load2] \n\t"

67

68 "precrq.ph.w %[p2], %[p1], %[scratch1] \n\t" /* pixel 2 */

69 "append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */

70

71 "dpa.w.ph $ac0, %[p1], %[filter45] \n\t"

72 "dpa.w.ph $ac1, %[p2], %[filter45] \n\t"

73

74 "preceu.ph.qbl %[scratch1], %[load1] \n\t"

75 "preceu.ph.qbl %[p1], %[load2] \n\t"

76

77 "precrq.ph.w %[p2], %[p1], %[scratch1] \n\t" /* pixel 2 */

78 "append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */

79

80 "dpa.w.ph $ac2, %[p1], %[filter45] \n\t"

81 "dpa.w.ph $ac3, %[p2], %[filter45] \n\t"

82

83 "extp %[Temp1], $ac0, 31 \n\t"

84 "extp %[Temp2], $ac1, 31 \n\t"

85

86 "lbux %[store1], %[Temp1](%[cm]) \n\t"

87 "extp %[Temp1], $ac2, 31 \n\t"

88

89 "lbux %[store2], %[Temp2](%[cm]) \n\t"

90 "extp %[Temp2], $ac3, 31 \n\t"

91

92 "sb %[store1], 0(%[dst_ptr]) \n\t"

93 "sb %[store2], 1(%[dst_ptr]) \n\t"

94

95 "lbux %[store1], %[Temp1](%[cm]) \n\t"

96 "lbux %[store2], %[Temp2](%[cm]) \n\t"

97

98 "sb %[store1], 2(%[dst_ptr]) \n\t"

99 "sb %[store2], 3(%[dst_ptr]) \n\t"

100

101 : [load1] "=&r" (load1), [load2] "=&r" (load2),

102 [p1] "=&r" (p1), [p2] "=&r" (p2),

103 [scratch1] "=&r" (scratch1),

104 [Temp1] "=&r" (Temp1), [Temp2] "=&r" (Temp2),

105 [store1] "=&r" (store1), [store2] "=&r" (store2),

106 [src_ptr] "+r" (src_ptr)

107 : [filter45] "r" (filter45),[vector4a] "r" (vector4a),

108 [src_stride] "r" (src_stride),

109 [cm] "r" (cm), [dst_ptr] "r" (dst_ptr)

110 );

111 }

112

113 /* Next row... */

114 src += src_stride;

115 dst += dst_stride;

116 }

117 }

118

119 static void convolve_bi_vert_64_dspr2(const uint8_t *src,

120 int32_t src_stride,

121 uint8_t *dst,

122 int32_t dst_stride,

123 const int16_t *filter_y,

124 int32_t h) {

125 int32_t x, y;

126 const uint8_t *src_ptr;

127 uint8_t *dst_ptr;

128 uint8_t *cm = vpx_ff_cropTbl;

129 uint32_t vector4a = 64;

130 uint32_t load1, load2;

131 uint32_t p1, p2;

132 uint32_t scratch1;

133 uint32_t store1, store2;

134 int32_t Temp1, Temp2;

135 const int16_t *filter = &filter_y[3];

136 uint32_t filter45;

137

138 filter45 = ((const int32_t *)filter)[0];

139

140 for (y = h; y--;) {

141 /* prefetch data to cache memory */

142 prefetch_store(dst + dst_stride);

143

144 for (x = 0; x < 64; x += 4) {

145 src_ptr = src + x;

146 dst_ptr = dst + x;

147

148 __asm__ __volatile__ (

149 "ulw %[load1], 0(%[src_ptr]) \n\t"

150 "add %[src_ptr], %[src_ptr], %[src_stride] \n\t"

151 "ulw %[load2], 0(%[src_ptr]) \n\t"

152

153 "mtlo %[vector4a], $ac0 \n\t"

154 "mtlo %[vector4a], $ac1 \n\t"

155 "mtlo %[vector4a], $ac2 \n\t"

156 "mtlo %[vector4a], $ac3 \n\t"

157 "mthi $zero, $ac0 \n\t"

158 "mthi $zero, $ac1 \n\t"

159 "mthi $zero, $ac2 \n\t"

160 "mthi $zero, $ac3 \n\t"

161

162 "preceu.ph.qbr %[scratch1], %[load1] \n\t"

163 "preceu.ph.qbr %[p1], %[load2] \n\t"

164

165 "precrq.ph.w %[p2], %[p1], %[scratch1] \n\t" /* pixel 2 */

166 "append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */

167

168 "dpa.w.ph $ac0, %[p1], %[filter45] \n\t"

169 "dpa.w.ph $ac1, %[p2], %[filter45] \n\t"

170

171 "preceu.ph.qbl %[scratch1], %[load1] \n\t"

172 "preceu.ph.qbl %[p1], %[load2] \n\t"

173

174 "precrq.ph.w %[p2], %[p1], %[scratch1] \n\t" /* pixel 2 */

175 "append %[p1], %[scratch1], 16 \n\t" /* pixel 1 */

176

177 "dpa.w.ph $ac2, %[p1], %[filter45] \n\t"

178 "dpa.w.ph $ac3, %[p2], %[filter45] \n\t"

179

180 "extp %[Temp1], $ac0, 31 \n\t"

181 "extp %[Temp2], $ac1, 31 \n\t"

182

183 "lbux %[store1], %[Temp1](%[cm]) \n\t"

184 "extp %[Temp1], $ac2, 31 \n\t"

185

186 "lbux %[store2], %[Temp2](%[cm]) \n\t"

187 "extp %[Temp2], $ac3, 31 \n\t"

188

189 "sb %[store1], 0(%[dst_ptr]) \n\t"

190 "sb %[store2], 1(%[dst_ptr]) \n\t"

191

192 "lbux %[store1], %[Temp1](%[cm]) \n\t"

193 "lbux %[store2], %[Temp2](%[cm]) \n\t"

194

195 "sb %[store1], 2(%[dst_ptr]) \n\t"

196 "sb %[store2], 3(%[dst_ptr]) \n\t"

197

198 : [load1] "=&r" (load1), [load2] "=&r" (load2),

199 [p1] "=&r" (p1), [p2] "=&r" (p2),

200 [scratch1] "=&r" (scratch1),

201 [Temp1] "=&r" (Temp1), [Temp2] "=&r" (Temp2),

202 [store1] "=&r" (store1), [store2] "=&r" (store2),

203 [src_ptr] "+r" (src_ptr)

204 : [filter45] "r" (filter45),[vector4a] "r" (vector4a),

205 [src_stride] "r" (src_stride),

206 [cm] "r" (cm), [dst_ptr] "r" (dst_ptr)

207 );

208 }

209

210 /* Next row... */

211 src += src_stride;

212 dst += dst_stride;

213 }

214 }

215

216 void vpx_convolve2_vert_dspr2(const uint8_t *src, ptrdiff_t src_stride,

217 uint8_t *dst, ptrdiff_t dst_stride,

218 const int16_t *filter_x, int x_step_q4,

219 const int16_t *filter_y, int y_step_q4,

220 int w, int h) {

221 if (16 == y_step_q4) {

222 uint32_t pos = 38;

223

224 /* bit positon for extract from acc */

225 __asm__ __volatile__ (

226 "wrdsp %[pos], 1 \n\t"

227 :

228 : [pos] "r" (pos)

229 );

230

231 prefetch_store(dst);

232

233 switch (w) {

234 case 4 :

235 case 8 :

236 case 16 :

237 case 32 :

238 convolve_bi_vert_4_dspr2(src, src_stride,

239 dst, dst_stride,

240 filter_y, w, h);

241 break;

242 case 64 :

243 prefetch_store(dst + 32);

244 convolve_bi_vert_64_dspr2(src, src_stride,

245 dst, dst_stride,

246 filter_y, h);

247 break;

248 default:

249 vpx_convolve8_vert_c(src, src_stride,

250 dst, dst_stride,

251 filter_x, x_step_q4,

252 filter_y, y_step_q4,

253 w, h);

254 break;

255 }

256 } else {

257 vpx_convolve8_vert_c(src, src_stride,

258 dst, dst_stride,

259 filter_x, x_step_q4,

260 filter_y, y_step_q4,

261 w, h);

262 }

263 }

264 #endif

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