1 /**
2 * @file gifdec_mve.h
3 *
4 */
5
6 #ifndef GIFDEC_MVE_H
7 #define GIFDEC_MVE_H
8
9 #ifdef __cplusplus
10 extern "C" {
11 #endif
12
13 /*********************
14 * INCLUDES
15 *********************/
16 #include <stdint.h>
17 #include "../../misc/lv_color.h"
18
19 /*********************
20 * DEFINES
21 *********************/
22
23 #define GIFDEC_FILL_BG(dst, w, h, stride, color, opa) \
24 _gifdec_fill_bg_mve(dst, w, h, stride, color, opa)
25
26 #define GIFDEC_RENDER_FRAME(dst, w, h, stride, frame, pattern, tindex) \
27 _gifdec_render_frame_mve(dst, w, h, stride, frame, pattern, tindex)
28
29 /**********************
30 * MACROS
31 **********************/
32
33 /**********************
34 * TYPEDEFS
35 **********************/
36
37 /**********************
38 * GLOBAL PROTOTYPES
39 **********************/
40
_gifdec_fill_bg_mve(uint8_t * dst,uint16_t w,uint16_t h,uint16_t stride,uint8_t * color,uint8_t opa)41 static inline void _gifdec_fill_bg_mve(uint8_t * dst, uint16_t w, uint16_t h, uint16_t stride, uint8_t * color,
42 uint8_t opa)
43 {
44 lv_color32_t c = lv_color32_make(*(color + 0), *(color + 1), *(color + 2), opa);
45 uint32_t color_32 = *(uint32_t *)&c;
46
47 __asm volatile(
48 ".p2align 2 \n"
49 "vdup.32 q0, %[src] \n"
50 "3: \n"
51 "mov r0, %[dst] \n"
52
53 "wlstp.32 lr, %[w], 1f \n"
54 "2: \n"
55
56 "vstrw.32 q0, [r0], #16 \n"
57 "letp lr, 2b \n"
58 "1: \n"
59 "add %[dst], %[iTargetStride] \n"
60 "subs %[h], #1 \n"
61 "bne 3b \n"
62 : [dst] "+r"(dst),
63 [h] "+r"(h)
64 : [src] "r"(color_32),
65 [w] "r"(w),
66 [iTargetStride] "r"(stride * sizeof(uint32_t))
67 : "r0", "q0", "memory", "r14", "cc");
68 }
69
_gifdec_render_frame_mve(uint8_t * dst,uint16_t w,uint16_t h,uint16_t stride,uint8_t * frame,uint8_t * pattern,uint16_t tindex)70 static inline void _gifdec_render_frame_mve(uint8_t * dst, uint16_t w, uint16_t h, uint16_t stride, uint8_t * frame,
71 uint8_t * pattern, uint16_t tindex)
72 {
73 if(w == 0 || h == 0) {
74 return;
75 }
76
77 __asm volatile(
78 "vmov.u16 q3, #255 \n"
79 "vshl.u16 q3, q3, #8 \n" /* left shift 8 for a*/
80
81 "mov r0, #2 \n"
82 "vidup.u16 q6, r0, #4 \n" /* [2, 6, 10, 14, 18, 22, 26, 30] */
83 "mov r0, #0 \n"
84 "vidup.u16 q7, r0, #4 \n" /* [0, 4, 8, 12, 16, 20, 24, 28] */
85
86 "3: \n"
87 "mov r1, %[dst] \n"
88 "mov r2, %[frame] \n"
89
90 "wlstp.16 lr, %[w], 1f \n"
91 "2: \n"
92
93 "mov r0, #3 \n"
94 "vldrb.u16 q4, [r2], #8 \n"
95 "vmul.u16 q5, q4, r0 \n"
96
97 "mov r0, #1 \n"
98 "vldrb.u16 q2, [%[pattern], q5] \n" /* load 8 pixel r*/
99
100 "vadd.u16 q5, q5, r0 \n"
101 "vldrb.u16 q1, [%[pattern], q5] \n" /* load 8 pixel g*/
102
103 "vadd.u16 q5, q5, r0 \n"
104 "vldrb.u16 q0, [%[pattern], q5] \n" /* load 8 pixel b*/
105
106 "vshl.u16 q1, q1, #8 \n" /* left shift 8 for g*/
107
108 "vorr.u16 q0, q0, q1 \n" /* make 8 pixel gb*/
109 "vorr.u16 q1, q2, q3 \n" /* make 8 pixel ar*/
110
111 "vcmp.i16 ne, q4, %[tindex] \n"
112 "vpstt \n"
113 "vstrht.16 q0, [r1, q7] \n"
114 "vstrht.16 q1, [r1, q6] \n"
115 "add r1, r1, #32 \n"
116
117 "letp lr, 2b \n"
118
119 "1: \n"
120 "mov r0, %[stride], LSL #2 \n"
121 "add %[dst], r0 \n"
122 "add %[frame], %[stride] \n"
123 "subs %[h], #1 \n"
124 "bne 3b \n"
125
126 : [dst] "+r"(dst),
127 [frame] "+r"(frame),
128 [h] "+r"(h)
129 : [pattern] "r"(pattern),
130 [w] "r"(w),
131 [stride] "r"(stride),
132 [tindex] "r"(tindex)
133 : "r0", "r1", "r2", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7", "memory", "r14", "cc");
134 }
135
136 #ifdef __cplusplus
137 } /*extern "C"*/
138 #endif
139
140 #endif /*GIFDEC_MVE_H*/
141
