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This commit is contained in:
twinaphex 2020-08-20 05:31:29 +02:00
parent 6f65a0076c
commit bc44313381
3 changed files with 77 additions and 92 deletions
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13
audio/conversion/float_to_s16.c
View File

@ -50,9 +50,7 @@ void convert_float_s16_asm(int16_t *out, const float *in, size_t samples);
void convert_float_to_s16(int16_t *out,
const float *in, size_t samples)
{
int16_t *out_ptr = NULL;
const float *in_ptr = NULL;
size_t i = 0;
size_t i = 0;
#if defined(__SSE2__)
__m128 factor = _mm_set1_ps((float)0x8000);
@ -137,13 +135,10 @@ void convert_float_to_s16(int16_t *out,
#endif
for (
out_ptr = &out[i], in_ptr = &in[i]
; i < samples
; out_ptr++, in_ptr++, i++)
for (; i < samples; i++)
{
int32_t val = (int32_t)(*in_ptr * 0x8000);
*out_ptr = (val > 0x7FFF) ? 0x7FFF :
int32_t val = (int32_t)(in[i] * 0x8000);
out[i] = (val > 0x7FFF) ? 0x7FFF :
(val < -0x8000 ? -0x8000 : (int16_t)val);
}
}

11
audio/conversion/s16_to_float.c
View File

@ -50,9 +50,7 @@ void convert_s16_float_asm(float *out, const int16_t *in,
void convert_s16_to_float(float *out,
const int16_t *in, size_t samples, float gain)
{
float *out_ptr = NULL;
const int16_t *in_ptr = NULL;
unsigned i = 0;
unsigned i = 0;
#if defined(__SSE2__)
float fgain = gain / UINT32_C(0x80000000);
@ -171,11 +169,8 @@ void convert_s16_to_float(float *out,
#endif
for (
out_ptr = &out[i], in_ptr = &in[i]
; i < samples
; out_ptr++, in_ptr++, i++)
*out_ptr = (float)*in_ptr * gain;
for (; i < samples; i++)
out[i] = (float)in[i] * gain;
}
/**

145
formats/png/rpng.c
View File

@ -231,59 +231,75 @@ end:
static void png_reverse_filter_copy_line_rgb(uint32_t *data,
const uint8_t *decoded, unsigned width, unsigned bpp)
{
uint32_t *data_ptr = NULL;
unsigned i;
bpp /= 8;
for (data_ptr = &data[0]; data_ptr < data + width; data_ptr++)
for (i = 0; i < width; i++)
{
uint32_t r = *(decoded);
uint32_t g = *(decoded + bpp);
uint32_t b = *(decoded + bpp + bpp);
decoded += (3 * bpp);
*data_ptr = (0xffu << 24) | (r << 16) | (g << 8) | (b << 0);
uint32_t r, g, b;
r = *decoded;
decoded += bpp;
g = *decoded;
decoded += bpp;
b = *decoded;
decoded += bpp;
data[i] = (0xffu << 24) | (r << 16) | (g << 8) | (b << 0);
}
}
static void png_reverse_filter_copy_line_rgba(uint32_t *data,
const uint8_t *decoded, unsigned width, unsigned bpp)
{
uint32_t *data_ptr = NULL;
unsigned i;
bpp /= 8;
for (data_ptr = &data[0]; data_ptr < data + width; data_ptr++)
for (i = 0; i < width; i++)
{
uint32_t r = *(decoded);
uint32_t g = *(decoded + bpp);
uint32_t b = *(decoded + bpp + bpp);
uint32_t a = *(decoded + bpp + bpp + bpp);
decoded += (4 * bpp);
*data_ptr = (a << 24) | (r << 16) | (g << 8) | (b << 0);
uint32_t r, g, b, a;
r = *decoded;
decoded += bpp;
g = *decoded;
decoded += bpp;
b = *decoded;
decoded += bpp;
a = *decoded;
decoded += bpp;
data[i] = (a << 24) | (r << 16) | (g << 8) | (b << 0);
}
}
static void png_reverse_filter_copy_line_bw(uint32_t *data,
const uint8_t *decoded, unsigned width, unsigned depth)
{
unsigned i;
static const unsigned
mul_table[] = { 0, 0xff, 0x55, 0, 0x11, 0, 0, 0, 0x01 };
unsigned mul = mul_table[depth];
unsigned mask = (1 << depth) - 1;
unsigned bit = 0;
uint32_t *data_ptr = NULL;
unsigned i, bit;
static const unsigned mul_table[] = { 0, 0xff, 0x55, 0, 0x11, 0, 0, 0, 0x01 };
unsigned mul, mask;
for ( i = 0, data_ptr = &data[0]
; i < width
; i++, data_ptr++, bit += depth)
if (depth == 16)
{
for (i = 0; i < width; i++)
{
uint32_t val = decoded[i << 1];
data[i] = (val * 0x010101) | (0xffu << 24);
}
return;
}
mul = mul_table[depth];
mask = (1 << depth) - 1;
bit = 0;
for (i = 0; i < width; i++, bit += depth)
{
unsigned byte = bit >> 3;
unsigned val = decoded[byte] >> (8 - depth - (bit & 7));
val &= mask;
val *= mul;
*data_ptr = (val * 0x010101) | (0xffu << 24);
data[i] = (val * 0x010101) | (0xffu << 24);
}
}
@ -291,16 +307,20 @@ static void png_reverse_filter_copy_line_gray_alpha(uint32_t *data,
const uint8_t *decoded, unsigned width,
unsigned bpp)
{
uint32_t *data_ptr = NULL;
unsigned i;
bpp /= 8;
for (data_ptr = &data[0]; data_ptr < data + width; data_ptr++)
for (i = 0; i < width; i++)
{
uint32_t gray = *(decoded);
uint32_t alpha = *(decoded + bpp);
decoded += (2 * bpp);
*data_ptr = (gray * 0x010101) | (alpha << 24);
uint32_t gray, alpha;
gray = *decoded;
decoded += bpp;
alpha = *decoded;
decoded += bpp;
data[i] = (gray * 0x010101) | (alpha << 24);
}
}
@ -460,13 +480,10 @@ static void png_reverse_filter_adam7_deinterlace_pass(uint32_t *data,
for (y = 0; y < pass_height;
y++, data += ihdr->width * pass->stride_y, input += pass_width)
{
uint32_t *out = data;
const uint32_t *input_ptr = NULL;
uint32_t *out = data;
for ( input_ptr = &input[0]
; input_ptr < input + pass_width
; input_ptr++, out += pass->stride_x)
*out = *input_ptr;
for (x = 0; x < pass_width; x++, out += pass->stride_x)
*out = input[x];
}
}
@ -609,23 +626,7 @@ static int png_reverse_filter_copy_line(uint32_t *data, const struct png_ihdr *i
switch (ihdr->color_type)
{
case PNG_IHDR_COLOR_GRAY:
if (ihdr->depth == 16)
{
unsigned i;
const uint8_t *decoded = pngp->decoded_scanline;
unsigned width = ihdr->width;
uint32_t *data_ptr = NULL;
for ( i = 0, data_ptr = &data[0]
; i < width
; data_ptr++, i++)
{
uint32_t val = decoded[i << 1];
*data_ptr = (val * 0x010101) | (0xffu << 24);
}
}
else
png_reverse_filter_copy_line_bw(data, pngp->decoded_scanline, ihdr->width, ihdr->depth);
png_reverse_filter_copy_line_bw(data, pngp->decoded_scanline, ihdr->width, ihdr->depth);
break;
case PNG_IHDR_COLOR_RGB:
png_reverse_filter_copy_line_rgb(data, pngp->decoded_scanline, ihdr->width, ihdr->depth);
@ -832,17 +833,14 @@ false_end:
static bool png_read_plte(uint8_t *buf,
uint32_t *buffer, unsigned entries)
{
uint8_t *buf_ptr = NULL;
uint32_t *buffer_ptr = NULL;
unsigned i;
for ( buf_ptr = &buf[0], buffer_ptr = &buffer[0]
; buffer_ptr < buffer + entries
; buf_ptr += 3, buffer_ptr++)
for (i = 0; i < entries; i++)
{
uint32_t r = *(buf_ptr);
uint32_t g = *(buf_ptr + 1);
uint32_t b = *(buf_ptr + 2);
*buffer_ptr = (r << 16) | (g << 8) | (b << 0) | (0xffu << 24);
uint32_t r = buf[3 * i + 0];
uint32_t g = buf[3 * i + 1];
uint32_t b = buf[3 * i + 2];
buffer[i] = (r << 16) | (g << 8) | (b << 0) | (0xffu << 24);
}
return true;
@ -958,15 +956,16 @@ static bool read_chunk_header(uint8_t *buf, uint8_t *buf_end,
{
unsigned i;
uint8_t dword[4];
uint8_t *dword_ptr = NULL;
uint8_t *buf_ptr = NULL;
dword[0] = '\0';
dword[0] = '\0';
for ( dword_ptr = &dword[0], buf_ptr = &buf[0]
; dword_ptr < dword + 4
; dword_ptr++, buf_ptr++)
*dword_ptr = *buf_ptr;
/* Check whether reading the header will overflow
* the data buffer */
if (buf_end - buf < 8)
return false;
for (i = 0; i < 4; i++)
dword[i] = buf[i];
chunk->size = dword_be(dword);
@ -1020,10 +1019,6 @@ bool rpng_iterate_image(rpng_t *rpng)
if (buf > rpng->buff_end)
return false;
/* Check whether reading the header will overflow
* the data buffer */
if (rpng->buff_end - buf < 8)
return false;
if (!read_chunk_header(buf, rpng->buff_end, &chunk))
return false;