From: kub Date: Fri, 23 Feb 2024 18:22:34 +0000 (+0100) Subject: mcd, increase audio volume slightly X-Git-Tag: v2.00~111 X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2eeee072ea99edd7c7f675dc22d8f1e026690b31;p=picodrive.git mcd, increase audio volume slightly --- diff --git a/pico/sound/mix.c b/pico/sound/mix.c index 1c79b485..edcdbb5f 100644 --- a/pico/sound/mix.c +++ b/pico/sound/mix.c @@ -114,7 +114,7 @@ void mix_16h_to_32(s32 *dest_buf, s16 *mp3_buf, int count) { while (count--) { - *dest_buf++ += *mp3_buf++ >> 1; + *dest_buf++ += (*mp3_buf++ * 5) >> 3; } } @@ -123,8 +123,8 @@ void mix_16h_to_32_s1(s32 *dest_buf, s16 *mp3_buf, int count) count >>= 1; while (count--) { - *dest_buf++ += *mp3_buf++ >> 1; - *dest_buf++ += *mp3_buf++ >> 1; + *dest_buf++ += (*mp3_buf++ * 5) >> 3; + *dest_buf++ += (*mp3_buf++ * 5) >> 3; mp3_buf += 1*2; } } @@ -134,8 +134,8 @@ void mix_16h_to_32_s2(s32 *dest_buf, s16 *mp3_buf, int count) count >>= 1; while (count--) { - *dest_buf++ += *mp3_buf++ >> 1; - *dest_buf++ += *mp3_buf++ >> 1; + *dest_buf++ += (*mp3_buf++ * 5) >> 3; + *dest_buf++ += (*mp3_buf++ * 5) >> 3; mp3_buf += 3*2; } } @@ -146,8 +146,8 @@ void mix_16h_to_32_resample_stereo(s32 *dest_buf, s16 *cdda_buf, int count, int int pos16 = 0; while (count--) { int pos = 2 * (pos16>>16); - *dest_buf++ += cdda_buf[pos ] >> 1; - *dest_buf++ += cdda_buf[pos+1] >> 1; + *dest_buf++ += (cdda_buf[pos ] * 5) >> 3; + *dest_buf++ += (cdda_buf[pos+1] * 5) >> 3; pos16 += fac16; } } @@ -158,8 +158,8 @@ void mix_16h_to_32_resample_mono(s32 *dest_buf, s16 *cdda_buf, int count, int fa int pos16 = 0; while (count--) { int pos = 2 * (pos16>>16); - *dest_buf += cdda_buf[pos ] >> 2; - *dest_buf++ += cdda_buf[pos+1] >> 2; + *dest_buf += (cdda_buf[pos ] * 5) >> 4; + *dest_buf++ += (cdda_buf[pos+1] * 5) >> 4; pos16 += fac16; } } diff --git a/pico/sound/mix_arm.S b/pico/sound/mix_arm.S index dc9e980b..835d30ab 100644 --- a/pico/sound/mix_arm.S +++ b/pico/sound/mix_arm.S @@ -31,12 +31,16 @@ m16_32_loop: ldmia r0, {r3-r6} ldmia r1!,{r12,lr} subs r2, r2, #4 - add r4, r4, r12,asr #17 @ we use half volume + add r4, r4, r12,asr #17 @ we use 5/8 volume + add r4, r4, r12,asr #19 mov r12,r12,lsl #16 add r3, r3, r12,asr #17 + add r3, r3, r12,asr #19 add r6, r6, lr, asr #17 + add r6, r6, lr, asr #19 mov lr, lr, lsl #16 add r5, r5, lr, asr #17 + add r5, r5, lr, asr #19 stmia r0!,{r3-r6} bpl m16_32_loop @@ -47,7 +51,9 @@ m16_32_end: ldmia r0, {r3,r4} mov r12,r5, lsl #16 add r3, r3, r12,asr #17 + add r3, r3, r12,asr #19 add r4, r4, r5, asr #17 + add r4, r4, r5, asr #19 stmia r0!,{r3,r4} m16_32_no_unal2: @@ -56,6 +62,7 @@ m16_32_no_unal2: ldrsh r4, [r1], #2 ldr r3, [r0] add r3, r3, r4, asr #1 + add r3, r3, r4, asr #3 str r3, [r0], #4 ldmfd sp!, {r4-r6,lr} @@ -76,12 +83,16 @@ m16_32_s1_loop: ldr r12,[r1], #8 ldr lr, [r1], #8 subs r2, r2, #4 - add r4, r4, r12,asr #17 + add r4, r4, r12,asr #17 @ we use 5/8 volume + add r4, r4, r12,asr #19 mov r12,r12,lsl #16 - add r3, r3, r12,asr #17 @ we use half volume + add r3, r3, r12,asr #17 + add r3, r3, r12,asr #19 add r6, r6, lr, asr #17 + add r6, r6, lr, asr #19 mov lr, lr, lsl #16 add r5, r5, lr, asr #17 + add r5, r5, lr, asr #19 stmia r0!,{r3-r6} bpl m16_32_s1_loop @@ -92,7 +103,9 @@ m16_32_s1_end: ldmia r0, {r3,r4} mov r12,r5, lsl #16 add r3, r3, r12,asr #17 + add r3, r3, r12,asr #19 add r4, r4, r5, asr #17 + add r4, r4, r5, asr #19 stmia r0!,{r3,r4} m16_32_s1_no_unal2: @@ -101,6 +114,7 @@ m16_32_s1_no_unal2: ldrsh r4, [r1], #2 ldr r3, [r0] add r3, r3, r4, asr #1 + add r3, r3, r4, asr #3 str r3, [r0], #4 ldmfd sp!, {r4-r6,lr} @@ -121,12 +135,16 @@ m16_32_s2_loop: ldr r12,[r1], #16 ldr lr, [r1], #16 subs r2, r2, #4 - add r4, r4, r12,asr #17 + add r4, r4, r12,asr #17 @ we use 5/8 volume + add r4, r4, r12,asr #19 mov r12,r12,lsl #16 - add r3, r3, r12,asr #17 @ we use half volume + add r3, r3, r12,asr #17 + add r3, r3, r12,asr #19 add r6, r6, lr, asr #17 + add r6, r6, lr, asr #19 mov lr, lr, lsl #16 add r5, r5, lr, asr #17 + add r5, r5, lr, asr #19 stmia r0!,{r3-r6} bpl m16_32_s2_loop @@ -137,7 +155,9 @@ m16_32_s2_end: ldmia r0, {r3,r4} mov r12,r5, lsl #16 add r3, r3, r12,asr #17 + add r3, r3, r12,asr #19 add r4, r4, r5, asr #17 + add r4, r4, r5, asr #19 stmia r0!,{r3,r4} m16_32_s2_no_unal2: @@ -146,6 +166,7 @@ m16_32_s2_no_unal2: ldrsh r4, [r1], #2 ldr r3, [r0] add r3, r3, r4, asr #1 + add r3, r3, r4, asr #3 str r3, [r0], #4 ldmfd sp!, {r4-r6,lr} @@ -171,12 +192,16 @@ m16_32_rss_loop: ldr lr ,[r1, r9, lsl #2] add r4, r4, r3 subs r2, r2, #2 - add r6, r6, r12,asr #17 + add r6, r6, r12,asr #17 @ we use 5/8 volume + add r6, r6, r12,asr #19 mov r12,r12,lsl #16 - add r5, r5, r12,asr #17 @ we use half volume + add r5, r5, r12,asr #17 + add r5, r5, r12,asr #19 add r8, r8, lr, asr #17 + add r8, r8, lr, asr #19 mov lr, lr, lsl #16 add r7, r7, lr, asr #17 + add r7, r7, lr, asr #19 stmia r0!,{r5-r8} bpl m16_32_rss_loop @@ -188,7 +213,9 @@ m16_32_rss_end: ldmia r0, {r5,r6} mov r12,lr, lsl #16 add r5, r5, r12,asr #17 + add r5, r5, r12,asr #19 add r6, r6, lr, asr #17 + add r6, r6, lr, asr #19 stmia r0!,{r5,r6} ldmfd sp!, {r4-r9,lr} @@ -214,12 +241,16 @@ m16_32_rsm_loop: ldr lr ,[r1, r9, lsl #2] add r4, r4, r3 subs r2, r2, #2 - add r5, r5, r12,asr #18 + add r5, r5, r12,asr #18 @ we use 5/8 volume (= 5/16 vol per channel) + add r5, r5, r12,asr #20 mov r12,r12,lsl #16 - add r5, r5, r12,asr #18 @ we use half volume (= quarter vol per channel) + add r5, r5, r12,asr #18 + add r5, r5, r12,asr #20 add r6, r6, lr, asr #18 + add r6, r6, lr, asr #20 mov lr, lr, lsl #16 add r6, r6, lr, asr #18 + add r6, r6, lr, asr #20 stmia r0!,{r5-r6} bpl m16_32_rsm_loop @@ -231,7 +262,9 @@ m16_32_rsm_end: ldr r5, [r0] mov r12,lr, lsl #16 add r5, r5, r12,asr #18 + add r5, r5, r12,asr #20 add r5, r5, lr, asr #18 + add r5, r5, lr, asr #20 str r5, [r0] ldmfd sp!, {r4-r6,r9,lr}