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| /**
| * @file gifdec_mve.h
| *
| */
|
| #ifndef GIFDEC_MVE_H
| #define GIFDEC_MVE_H
|
| #ifdef __cplusplus
| extern "C" {
| #endif
|
| /*********************
| * INCLUDES
| *********************/
| #include <stdint.h>
| #include "../../misc/lv_color.h"
|
| /*********************
| * DEFINES
| *********************/
|
| #define GIFDEC_FILL_BG(dst, w, h, stride, color, opa) \
| _gifdec_fill_bg_mve(dst, w, h, stride, color, opa)
|
| #define GIFDEC_RENDER_FRAME(dst, w, h, stride, frame, pattern, tindex) \
| _gifdec_render_frame_mve(dst, w, h, stride, frame, pattern, tindex)
|
| /**********************
| * MACROS
| **********************/
|
| /**********************
| * TYPEDEFS
| **********************/
|
| /**********************
| * GLOBAL PROTOTYPES
| **********************/
|
| static inline void _gifdec_fill_bg_mve(uint8_t * dst, uint16_t w, uint16_t h, uint16_t stride, uint8_t * color,
| uint8_t opa)
| {
| lv_color32_t c = lv_color32_make(*(color + 0), *(color + 1), *(color + 2), opa);
| uint32_t color_32 = *(uint32_t *)&c;
|
| __asm volatile(
| ".p2align 2 \n"
| "vdup.32 q0, %[src] \n"
| "3: \n"
| "mov r0, %[dst] \n"
|
| "wlstp.32 lr, %[w], 1f \n"
| "2: \n"
|
| "vstrw.32 q0, [r0], #16 \n"
| "letp lr, 2b \n"
| "1: \n"
| "add %[dst], %[iTargetStride] \n"
| "subs %[h], #1 \n"
| "bne 3b \n"
| : [dst] "+r"(dst),
| [h] "+r"(h)
| : [src] "r"(color_32),
| [w] "r"(w),
| [iTargetStride] "r"(stride * sizeof(uint32_t))
| : "r0", "q0", "memory", "r14", "cc");
| }
|
| static inline void _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)
| {
| if(w == 0 || h == 0) {
| return;
| }
|
| __asm volatile(
| "vmov.u16 q3, #255 \n"
| "vshl.u16 q3, q3, #8 \n" /* left shift 8 for a*/
|
| "mov r0, #2 \n"
| "vidup.u16 q6, r0, #4 \n" /* [2, 6, 10, 14, 18, 22, 26, 30] */
| "mov r0, #0 \n"
| "vidup.u16 q7, r0, #4 \n" /* [0, 4, 8, 12, 16, 20, 24, 28] */
|
| "3: \n"
| "mov r1, %[dst] \n"
| "mov r2, %[frame] \n"
|
| "wlstp.16 lr, %[w], 1f \n"
| "2: \n"
|
| "mov r0, #3 \n"
| "vldrb.u16 q4, [r2], #8 \n"
| "vmul.u16 q5, q4, r0 \n"
|
| "mov r0, #1 \n"
| "vldrb.u16 q2, [%[pattern], q5] \n" /* load 8 pixel r*/
|
| "vadd.u16 q5, q5, r0 \n"
| "vldrb.u16 q1, [%[pattern], q5] \n" /* load 8 pixel g*/
|
| "vadd.u16 q5, q5, r0 \n"
| "vldrb.u16 q0, [%[pattern], q5] \n" /* load 8 pixel b*/
|
| "vshl.u16 q1, q1, #8 \n" /* left shift 8 for g*/
|
| "vorr.u16 q0, q0, q1 \n" /* make 8 pixel gb*/
| "vorr.u16 q1, q2, q3 \n" /* make 8 pixel ar*/
|
| "vcmp.i16 ne, q4, %[tindex] \n"
| "vpstt \n"
| "vstrht.16 q0, [r1, q7] \n"
| "vstrht.16 q1, [r1, q6] \n"
| "add r1, r1, #32 \n"
|
| "letp lr, 2b \n"
|
| "1: \n"
| "mov r0, %[stride], LSL #2 \n"
| "add %[dst], r0 \n"
| "add %[frame], %[stride] \n"
| "subs %[h], #1 \n"
| "bne 3b \n"
|
| : [dst] "+r"(dst),
| [frame] "+r"(frame),
| [h] "+r"(h)
| : [pattern] "r"(pattern),
| [w] "r"(w),
| [stride] "r"(stride),
| [tindex] "r"(tindex)
| : "r0", "r1", "r2", "q0", "q1", "q2", "q3", "q4", "q5", "q6", "q7", "memory", "r14", "cc");
| }
|
| #ifdef __cplusplus
| } /*extern "C"*/
| #endif
|
| #endif /*GIFDEC_MVE_H*/
|
|
