diff options
Diffstat (limited to 'media/libvpx/vpx_scale/generic')
| -rw-r--r-- | media/libvpx/vpx_scale/generic/gen_scalers.c | 240 | ||||
| -rw-r--r-- | media/libvpx/vpx_scale/generic/vpx_scale.c | 531 | ||||
| -rw-r--r-- | media/libvpx/vpx_scale/generic/yv12config.c | 303 | ||||
| -rw-r--r-- | media/libvpx/vpx_scale/generic/yv12extend.c | 324 |
4 files changed, 1398 insertions, 0 deletions
diff --git a/media/libvpx/vpx_scale/generic/gen_scalers.c b/media/libvpx/vpx_scale/generic/gen_scalers.c new file mode 100644 index 000000000..dab324edf --- /dev/null +++ b/media/libvpx/vpx_scale/generic/gen_scalers.c @@ -0,0 +1,240 @@ +/* + * Copyright (c) 2010 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include "./vpx_scale_rtcd.h" +#include "vpx_scale/vpx_scale.h" +#include "vpx_mem/vpx_mem.h" +/**************************************************************************** +* Imports +****************************************************************************/ + +/**************************************************************************** + * + * + * INPUTS : const unsigned char *source : Pointer to source data. + * unsigned int source_width : Stride of source. + * unsigned char *dest : Pointer to destination data. + * unsigned int dest_width : Stride of destination (NOT USED). + * + * OUTPUTS : None. + * + * RETURNS : void + * + * FUNCTION : Copies horizontal line of pixels from source to + * destination scaling up by 4 to 5. + * + * SPECIAL NOTES : None. + * + ****************************************************************************/ +void vp8_horizontal_line_5_4_scale_c(const unsigned char *source, + unsigned int source_width, + unsigned char *dest, + unsigned int dest_width) { + unsigned i; + unsigned int a, b, c, d, e; + unsigned char *des = dest; + const unsigned char *src = source; + + (void) dest_width; + + for (i = 0; i < source_width; i += 5) { + a = src[0]; + b = src[1]; + c = src[2]; + d = src[3]; + e = src[4]; + + des[0] = (unsigned char) a; + des[1] = (unsigned char)((b * 192 + c * 64 + 128) >> 8); + des[2] = (unsigned char)((c * 128 + d * 128 + 128) >> 8); + des[3] = (unsigned char)((d * 64 + e * 192 + 128) >> 8); + + src += 5; + des += 4; + } +} + + + + +void vp8_vertical_band_5_4_scale_c(unsigned char *source, + unsigned int src_pitch, + unsigned char *dest, + unsigned int dest_pitch, + unsigned int dest_width) { + unsigned int i; + unsigned int a, b, c, d, e; + unsigned char *des = dest; + unsigned char *src = source; + + for (i = 0; i < dest_width; i++) { + + a = src[0 * src_pitch]; + b = src[1 * src_pitch]; + c = src[2 * src_pitch]; + d = src[3 * src_pitch]; + e = src[4 * src_pitch]; + + des[0 * dest_pitch] = (unsigned char) a; + des[1 * dest_pitch] = (unsigned char)((b * 192 + c * 64 + 128) >> 8); + des[2 * dest_pitch] = (unsigned char)((c * 128 + d * 128 + 128) >> 8); + des[3 * dest_pitch] = (unsigned char)((d * 64 + e * 192 + 128) >> 8); + + src++; + des++; + + } +} + + +/*7*************************************************************************** + * + * ROUTINE : vp8_horizontal_line_3_5_scale_c + * + * INPUTS : const unsigned char *source : Pointer to source data. + * unsigned int source_width : Stride of source. + * unsigned char *dest : Pointer to destination data. + * unsigned int dest_width : Stride of destination (NOT USED). + * + * OUTPUTS : None. + * + * RETURNS : void + * + * FUNCTION : Copies horizontal line of pixels from source to + * destination scaling up by 3 to 5. + * + * SPECIAL NOTES : None. + * + * + ****************************************************************************/ +void vp8_horizontal_line_5_3_scale_c(const unsigned char *source, + unsigned int source_width, + unsigned char *dest, + unsigned int dest_width) { + unsigned int i; + unsigned int a, b, c, d, e; + unsigned char *des = dest; + const unsigned char *src = source; + + (void) dest_width; + + for (i = 0; i < source_width; i += 5) { + a = src[0]; + b = src[1]; + c = src[2]; + d = src[3]; + e = src[4]; + + des[0] = (unsigned char) a; + des[1] = (unsigned char)((b * 85 + c * 171 + 128) >> 8); + des[2] = (unsigned char)((d * 171 + e * 85 + 128) >> 8); + + src += 5; + des += 3; + } + +} + +void vp8_vertical_band_5_3_scale_c(unsigned char *source, + unsigned int src_pitch, + unsigned char *dest, + unsigned int dest_pitch, + unsigned int dest_width) { + unsigned int i; + unsigned int a, b, c, d, e; + unsigned char *des = dest; + unsigned char *src = source; + + for (i = 0; i < dest_width; i++) { + + a = src[0 * src_pitch]; + b = src[1 * src_pitch]; + c = src[2 * src_pitch]; + d = src[3 * src_pitch]; + e = src[4 * src_pitch]; + + des[0 * dest_pitch] = (unsigned char) a; + des[1 * dest_pitch] = (unsigned char)((b * 85 + c * 171 + 128) >> 8); + des[2 * dest_pitch] = (unsigned char)((d * 171 + e * 85 + 128) >> 8); + + src++; + des++; + + } +} + +/**************************************************************************** + * + * ROUTINE : vp8_horizontal_line_1_2_scale_c + * + * INPUTS : const unsigned char *source : Pointer to source data. + * unsigned int source_width : Stride of source. + * unsigned char *dest : Pointer to destination data. + * unsigned int dest_width : Stride of destination (NOT USED). + * + * OUTPUTS : None. + * + * RETURNS : void + * + * FUNCTION : Copies horizontal line of pixels from source to + * destination scaling up by 1 to 2. + * + * SPECIAL NOTES : None. + * + ****************************************************************************/ +void vp8_horizontal_line_2_1_scale_c(const unsigned char *source, + unsigned int source_width, + unsigned char *dest, + unsigned int dest_width) { + unsigned int i; + unsigned int a; + unsigned char *des = dest; + const unsigned char *src = source; + + (void) dest_width; + + for (i = 0; i < source_width; i += 2) { + a = src[0]; + des [0] = (unsigned char)(a); + src += 2; + des += 1; + } +} + +void vp8_vertical_band_2_1_scale_c(unsigned char *source, + unsigned int src_pitch, + unsigned char *dest, + unsigned int dest_pitch, + unsigned int dest_width) { + (void) dest_pitch; + (void) src_pitch; + memcpy(dest, source, dest_width); +} + +void vp8_vertical_band_2_1_scale_i_c(unsigned char *source, + unsigned int src_pitch, + unsigned char *dest, + unsigned int dest_pitch, + unsigned int dest_width) { + int i; + int temp; + int width = dest_width; + + (void) dest_pitch; + + for (i = 0; i < width; i++) { + temp = 8; + temp += source[i - (int)src_pitch] * 3; + temp += source[i] * 10; + temp += source[i + src_pitch] * 3; + temp >>= 4; + dest[i] = (unsigned char)(temp); + } +} diff --git a/media/libvpx/vpx_scale/generic/vpx_scale.c b/media/libvpx/vpx_scale/generic/vpx_scale.c new file mode 100644 index 000000000..15e4ba87e --- /dev/null +++ b/media/libvpx/vpx_scale/generic/vpx_scale.c @@ -0,0 +1,531 @@ +/* + * Copyright (c) 2010 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + + +/**************************************************************************** + * + * Module Title : scale.c + * + * Description : Image scaling functions. + * + ***************************************************************************/ + +/**************************************************************************** +* Header Files +****************************************************************************/ +#include "./vpx_scale_rtcd.h" +#include "vpx_mem/vpx_mem.h" +#include "vpx_scale/vpx_scale.h" +#include "vpx_scale/yv12config.h" + +typedef struct { + int expanded_frame_width; + int expanded_frame_height; + + int HScale; + int HRatio; + int VScale; + int VRatio; + + YV12_BUFFER_CONFIG *src_yuv_config; + YV12_BUFFER_CONFIG *dst_yuv_config; + +} SCALE_VARS; + +/**************************************************************************** + * + * ROUTINE : scale1d_2t1_i + * + * INPUTS : const unsigned char *source : Pointer to data to be scaled. + * int source_step : Number of pixels to step on in source. + * unsigned int source_scale : Scale for source (UNUSED). + * unsigned int source_length : Length of source (UNUSED). + * unsigned char *dest : Pointer to output data array. + * int dest_step : Number of pixels to step on in destination. + * unsigned int dest_scale : Scale for destination (UNUSED). + * unsigned int dest_length : Length of destination. + * + * OUTPUTS : None. + * + * RETURNS : void + * + * FUNCTION : Performs 2-to-1 interpolated scaling. + * + * SPECIAL NOTES : None. + * + ****************************************************************************/ +static +void scale1d_2t1_i +( + const unsigned char *source, + int source_step, + unsigned int source_scale, + unsigned int source_length, + unsigned char *dest, + int dest_step, + unsigned int dest_scale, + unsigned int dest_length +) { + unsigned int i, j; + unsigned int temp; + int source_pitch = source_step; + (void) source_length; + (void) source_scale; + (void) dest_scale; + + source_step *= 2; + dest[0] = source[0]; + + for (i = dest_step, j = source_step; i < dest_length * dest_step; i += dest_step, j += source_step) { + temp = 8; + temp += 3 * source[j - source_pitch]; + temp += 10 * source[j]; + temp += 3 * source[j + source_pitch]; + temp >>= 4; + dest[i] = (char)(temp); + } +} + +/**************************************************************************** + * + * ROUTINE : scale1d_2t1_ps + * + * INPUTS : const unsigned char *source : Pointer to data to be scaled. + * int source_step : Number of pixels to step on in source. + * unsigned int source_scale : Scale for source (UNUSED). + * unsigned int source_length : Length of source (UNUSED). + * unsigned char *dest : Pointer to output data array. + * int dest_step : Number of pixels to step on in destination. + * unsigned int dest_scale : Scale for destination (UNUSED). + * unsigned int dest_length : Length of destination. + * + * OUTPUTS : None. + * + * RETURNS : void + * + * FUNCTION : Performs 2-to-1 point subsampled scaling. + * + * SPECIAL NOTES : None. + * + ****************************************************************************/ +static +void scale1d_2t1_ps +( + const unsigned char *source, + int source_step, + unsigned int source_scale, + unsigned int source_length, + unsigned char *dest, + int dest_step, + unsigned int dest_scale, + unsigned int dest_length +) { + unsigned int i, j; + + (void) source_length; + (void) source_scale; + (void) dest_scale; + + source_step *= 2; + j = 0; + + for (i = 0; i < dest_length * dest_step; i += dest_step, j += source_step) + dest[i] = source[j]; +} +/**************************************************************************** + * + * ROUTINE : scale1d_c + * + * INPUTS : const unsigned char *source : Pointer to data to be scaled. + * int source_step : Number of pixels to step on in source. + * unsigned int source_scale : Scale for source. + * unsigned int source_length : Length of source (UNUSED). + * unsigned char *dest : Pointer to output data array. + * int dest_step : Number of pixels to step on in destination. + * unsigned int dest_scale : Scale for destination. + * unsigned int dest_length : Length of destination. + * + * OUTPUTS : None. + * + * RETURNS : void + * + * FUNCTION : Performs linear interpolation in one dimension. + * + * SPECIAL NOTES : None. + * + ****************************************************************************/ +static +void scale1d_c +( + const unsigned char *source, + int source_step, + unsigned int source_scale, + unsigned int source_length, + unsigned char *dest, + int dest_step, + unsigned int dest_scale, + unsigned int dest_length +) { + unsigned int i; + unsigned int round_value = dest_scale / 2; + unsigned int left_modifier = dest_scale; + unsigned int right_modifier = 0; + unsigned char left_pixel = *source; + unsigned char right_pixel = *(source + source_step); + + (void) source_length; + + /* These asserts are needed if there are boundary issues... */ + /*assert ( dest_scale > source_scale );*/ + /*assert ( (source_length-1) * dest_scale >= (dest_length-1) * source_scale );*/ + + for (i = 0; i < dest_length * dest_step; i += dest_step) { + dest[i] = (char)((left_modifier * left_pixel + right_modifier * right_pixel + round_value) / dest_scale); + + right_modifier += source_scale; + + while (right_modifier > dest_scale) { + right_modifier -= dest_scale; + source += source_step; + left_pixel = *source; + right_pixel = *(source + source_step); + } + + left_modifier = dest_scale - right_modifier; + } +} + +/**************************************************************************** + * + * ROUTINE : Scale2D + * + * INPUTS : const unsigned char *source : Pointer to data to be scaled. + * int source_pitch : Stride of source image. + * unsigned int source_width : Width of input image. + * unsigned int source_height : Height of input image. + * unsigned char *dest : Pointer to output data array. + * int dest_pitch : Stride of destination image. + * unsigned int dest_width : Width of destination image. + * unsigned int dest_height : Height of destination image. + * unsigned char *temp_area : Pointer to temp work area. + * unsigned char temp_area_height : Height of temp work area. + * unsigned int hscale : Horizontal scale factor numerator. + * unsigned int hratio : Horizontal scale factor denominator. + * unsigned int vscale : Vertical scale factor numerator. + * unsigned int vratio : Vertical scale factor denominator. + * unsigned int interlaced : Interlace flag. + * + * OUTPUTS : None. + * + * RETURNS : void + * + * FUNCTION : Performs 2-tap linear interpolation in two dimensions. + * + * SPECIAL NOTES : Expansion is performed one band at a time to help with + * caching. + * + ****************************************************************************/ +static +void Scale2D +( + /*const*/ + unsigned char *source, + int source_pitch, + unsigned int source_width, + unsigned int source_height, + unsigned char *dest, + int dest_pitch, + unsigned int dest_width, + unsigned int dest_height, + unsigned char *temp_area, + unsigned char temp_area_height, + unsigned int hscale, + unsigned int hratio, + unsigned int vscale, + unsigned int vratio, + unsigned int interlaced +) { + /*unsigned*/ + int i, j, k; + int bands; + int dest_band_height; + int source_band_height; + + typedef void (*Scale1D)(const unsigned char * source, int source_step, unsigned int source_scale, unsigned int source_length, + unsigned char * dest, int dest_step, unsigned int dest_scale, unsigned int dest_length); + + Scale1D Scale1Dv = scale1d_c; + Scale1D Scale1Dh = scale1d_c; + + void (*horiz_line_scale)(const unsigned char *, unsigned int, unsigned char *, unsigned int) = NULL; + void (*vert_band_scale)(unsigned char *, unsigned int, unsigned char *, unsigned int, unsigned int) = NULL; + + int ratio_scalable = 1; + int interpolation = 0; + + unsigned char *source_base; /* = (unsigned char *) ((source_pitch >= 0) ? source : (source + ((source_height-1) * source_pitch))); */ + unsigned char *line_src; + + + source_base = (unsigned char *)source; + + if (source_pitch < 0) { + int offset; + + offset = (source_height - 1); + offset *= source_pitch; + + source_base += offset; + } + + /* find out the ratio for each direction */ + switch (hratio * 10 / hscale) { + case 8: + /* 4-5 Scale in Width direction */ + horiz_line_scale = vp8_horizontal_line_5_4_scale; + break; + case 6: + /* 3-5 Scale in Width direction */ + horiz_line_scale = vp8_horizontal_line_5_3_scale; + break; + case 5: + /* 1-2 Scale in Width direction */ + horiz_line_scale = vp8_horizontal_line_2_1_scale; + break; + default: + /* The ratio is not acceptable now */ + /* throw("The ratio is not acceptable for now!"); */ + ratio_scalable = 0; + break; + } + + switch (vratio * 10 / vscale) { + case 8: + /* 4-5 Scale in vertical direction */ + vert_band_scale = vp8_vertical_band_5_4_scale; + source_band_height = 5; + dest_band_height = 4; + break; + case 6: + /* 3-5 Scale in vertical direction */ + vert_band_scale = vp8_vertical_band_5_3_scale; + source_band_height = 5; + dest_band_height = 3; + break; + case 5: + /* 1-2 Scale in vertical direction */ + + if (interlaced) { + /* if the content is interlaced, point sampling is used */ + vert_band_scale = vp8_vertical_band_2_1_scale; + } else { + + interpolation = 1; + /* if the content is progressive, interplo */ + vert_band_scale = vp8_vertical_band_2_1_scale_i; + + } + + source_band_height = 2; + dest_band_height = 1; + break; + default: + /* The ratio is not acceptable now */ + /* throw("The ratio is not acceptable for now!"); */ + ratio_scalable = 0; + break; + } + + if (ratio_scalable) { + if (source_height == dest_height) { + /* for each band of the image */ + for (k = 0; k < (int)dest_height; k++) { + horiz_line_scale(source, source_width, dest, dest_width); + source += source_pitch; + dest += dest_pitch; + } + + return; + } + + if (interpolation) { + if (source < source_base) + source = source_base; + + horiz_line_scale(source, source_width, temp_area, dest_width); + } + + for (k = 0; k < (int)(dest_height + dest_band_height - 1) / dest_band_height; k++) { + /* scale one band horizontally */ + for (i = 0; i < source_band_height; i++) { + /* Trap case where we could read off the base of the source buffer */ + + line_src = (unsigned char *)source + i * source_pitch; + + if (line_src < source_base) + line_src = source_base; + + horiz_line_scale(line_src, source_width, + temp_area + (i + 1)*dest_pitch, dest_width); + } + + /* Vertical scaling is in place */ + vert_band_scale(temp_area + dest_pitch, dest_pitch, dest, dest_pitch, dest_width); + + if (interpolation) + memcpy(temp_area, temp_area + source_band_height * dest_pitch, dest_width); + + /* Next band... */ + source += (unsigned long) source_band_height * source_pitch; + dest += (unsigned long) dest_band_height * dest_pitch; + } + + return; + } + + if (hscale == 2 && hratio == 1) + Scale1Dh = scale1d_2t1_ps; + + if (vscale == 2 && vratio == 1) { + if (interlaced) + Scale1Dv = scale1d_2t1_ps; + else + Scale1Dv = scale1d_2t1_i; + } + + if (source_height == dest_height) { + /* for each band of the image */ + for (k = 0; k < (int)dest_height; k++) { + Scale1Dh(source, 1, hscale, source_width + 1, dest, 1, hratio, dest_width); + source += source_pitch; + dest += dest_pitch; + } + + return; + } + + if (dest_height > source_height) { + dest_band_height = temp_area_height - 1; + source_band_height = dest_band_height * source_height / dest_height; + } else { + source_band_height = temp_area_height - 1; + dest_band_height = source_band_height * vratio / vscale; + } + + /* first row needs to be done so that we can stay one row ahead for vertical zoom */ + Scale1Dh(source, 1, hscale, source_width + 1, temp_area, 1, hratio, dest_width); + + /* for each band of the image */ + bands = (dest_height + dest_band_height - 1) / dest_band_height; + + for (k = 0; k < bands; k++) { + /* scale one band horizontally */ + for (i = 1; i < source_band_height + 1; i++) { + if (k * source_band_height + i < (int) source_height) { + Scale1Dh(source + i * source_pitch, 1, hscale, source_width + 1, + temp_area + i * dest_pitch, 1, hratio, dest_width); + } else { /* Duplicate the last row */ + /* copy temp_area row 0 over from last row in the past */ + memcpy(temp_area + i * dest_pitch, temp_area + (i - 1)*dest_pitch, dest_pitch); + } + } + + /* scale one band vertically */ + for (j = 0; j < (int)dest_width; j++) { + Scale1Dv(&temp_area[j], dest_pitch, vscale, source_band_height + 1, + &dest[j], dest_pitch, vratio, dest_band_height); + } + + /* copy temp_area row 0 over from last row in the past */ + memcpy(temp_area, temp_area + source_band_height * dest_pitch, dest_pitch); + + /* move to the next band */ + source += source_band_height * source_pitch; + dest += dest_band_height * dest_pitch; + } +} + +/**************************************************************************** + * + * ROUTINE : vpx_scale_frame + * + * INPUTS : YV12_BUFFER_CONFIG *src : Pointer to frame to be scaled. + * YV12_BUFFER_CONFIG *dst : Pointer to buffer to hold scaled frame. + * unsigned char *temp_area : Pointer to temp work area. + * unsigned char temp_area_height : Height of temp work area. + * unsigned int hscale : Horizontal scale factor numerator. + * unsigned int hratio : Horizontal scale factor denominator. + * unsigned int vscale : Vertical scale factor numerator. + * unsigned int vratio : Vertical scale factor denominator. + * unsigned int interlaced : Interlace flag. + * + * OUTPUTS : None. + * + * RETURNS : void + * + * FUNCTION : Performs 2-tap linear interpolation in two dimensions. + * + * SPECIAL NOTES : Expansion is performed one band at a time to help with + * caching. + * + ****************************************************************************/ +void vpx_scale_frame +( + YV12_BUFFER_CONFIG *src, + YV12_BUFFER_CONFIG *dst, + unsigned char *temp_area, + unsigned char temp_height, + unsigned int hscale, + unsigned int hratio, + unsigned int vscale, + unsigned int vratio, + unsigned int interlaced +) { + int i; + int dw = (hscale - 1 + src->y_width * hratio) / hscale; + int dh = (vscale - 1 + src->y_height * vratio) / vscale; + + /* call our internal scaling routines!! */ + Scale2D((unsigned char *) src->y_buffer, src->y_stride, src->y_width, src->y_height, + (unsigned char *) dst->y_buffer, dst->y_stride, dw, dh, + temp_area, temp_height, hscale, hratio, vscale, vratio, interlaced); + + if (dw < (int)dst->y_width) + for (i = 0; i < dh; i++) + memset(dst->y_buffer + i * dst->y_stride + dw - 1, dst->y_buffer[i * dst->y_stride + dw - 2], dst->y_width - dw + 1); + + if (dh < (int)dst->y_height) + for (i = dh - 1; i < (int)dst->y_height; i++) + memcpy(dst->y_buffer + i * dst->y_stride, dst->y_buffer + (dh - 2) * dst->y_stride, dst->y_width + 1); + + Scale2D((unsigned char *) src->u_buffer, src->uv_stride, src->uv_width, src->uv_height, + (unsigned char *) dst->u_buffer, dst->uv_stride, dw / 2, dh / 2, + temp_area, temp_height, hscale, hratio, vscale, vratio, interlaced); + + if (dw / 2 < (int)dst->uv_width) + for (i = 0; i < dst->uv_height; i++) + memset(dst->u_buffer + i * dst->uv_stride + dw / 2 - 1, dst->u_buffer[i * dst->uv_stride + dw / 2 - 2], dst->uv_width - dw / 2 + 1); + + if (dh / 2 < (int)dst->uv_height) + for (i = dh / 2 - 1; i < (int)dst->y_height / 2; i++) + memcpy(dst->u_buffer + i * dst->uv_stride, dst->u_buffer + (dh / 2 - 2)*dst->uv_stride, dst->uv_width); + + Scale2D((unsigned char *) src->v_buffer, src->uv_stride, src->uv_width, src->uv_height, + (unsigned char *) dst->v_buffer, dst->uv_stride, dw / 2, dh / 2, + temp_area, temp_height, hscale, hratio, vscale, vratio, interlaced); + + if (dw / 2 < (int)dst->uv_width) + for (i = 0; i < dst->uv_height; i++) + memset(dst->v_buffer + i * dst->uv_stride + dw / 2 - 1, dst->v_buffer[i * dst->uv_stride + dw / 2 - 2], dst->uv_width - dw / 2 + 1); + + if (dh / 2 < (int) dst->uv_height) + for (i = dh / 2 - 1; i < (int)dst->y_height / 2; i++) + memcpy(dst->v_buffer + i * dst->uv_stride, dst->v_buffer + (dh / 2 - 2)*dst->uv_stride, dst->uv_width); +} diff --git a/media/libvpx/vpx_scale/generic/yv12config.c b/media/libvpx/vpx_scale/generic/yv12config.c new file mode 100644 index 000000000..7582792d9 --- /dev/null +++ b/media/libvpx/vpx_scale/generic/yv12config.c @@ -0,0 +1,303 @@ +/* + * Copyright (c) 2010 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include <assert.h> + +#include "vpx_scale/yv12config.h" +#include "vpx_mem/vpx_mem.h" +#include "vpx_ports/mem.h" + +/**************************************************************************** +* Exports +****************************************************************************/ + +/**************************************************************************** + * + ****************************************************************************/ +#define yv12_align_addr(addr, align) \ + (void*)(((size_t)(addr) + ((align) - 1)) & (size_t)-(align)) + +int +vp8_yv12_de_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf) { + if (ybf) { + // If libvpx is using frame buffer callbacks then buffer_alloc_sz must + // not be set. + if (ybf->buffer_alloc_sz > 0) { + vpx_free(ybf->buffer_alloc); + } + + /* buffer_alloc isn't accessed by most functions. Rather y_buffer, + u_buffer and v_buffer point to buffer_alloc and are used. Clear out + all of this so that a freed pointer isn't inadvertently used */ + memset(ybf, 0, sizeof(YV12_BUFFER_CONFIG)); + } else { + return -1; + } + + return 0; +} + +int vp8_yv12_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, + int width, int height, int border) { + if (ybf) { + int aligned_width = (width + 15) & ~15; + int aligned_height = (height + 15) & ~15; + int y_stride = ((aligned_width + 2 * border) + 31) & ~31; + int yplane_size = (aligned_height + 2 * border) * y_stride; + int uv_width = aligned_width >> 1; + int uv_height = aligned_height >> 1; + /** There is currently a bunch of code which assumes + * uv_stride == y_stride/2, so enforce this here. */ + int uv_stride = y_stride >> 1; + int uvplane_size = (uv_height + border) * uv_stride; + const int frame_size = yplane_size + 2 * uvplane_size; + + if (!ybf->buffer_alloc) { + ybf->buffer_alloc = (uint8_t *)vpx_memalign(32, frame_size); + ybf->buffer_alloc_sz = frame_size; + } + + if (!ybf->buffer_alloc || ybf->buffer_alloc_sz < frame_size) + return -1; + + /* Only support allocating buffers that have a border that's a multiple + * of 32. The border restriction is required to get 16-byte alignment of + * the start of the chroma rows without introducing an arbitrary gap + * between planes, which would break the semantics of things like + * vpx_img_set_rect(). */ + if (border & 0x1f) + return -3; + + ybf->y_crop_width = width; + ybf->y_crop_height = height; + ybf->y_width = aligned_width; + ybf->y_height = aligned_height; + ybf->y_stride = y_stride; + + ybf->uv_crop_width = (width + 1) / 2; + ybf->uv_crop_height = (height + 1) / 2; + ybf->uv_width = uv_width; + ybf->uv_height = uv_height; + ybf->uv_stride = uv_stride; + + ybf->alpha_width = 0; + ybf->alpha_height = 0; + ybf->alpha_stride = 0; + + ybf->border = border; + ybf->frame_size = frame_size; + + ybf->y_buffer = ybf->buffer_alloc + (border * y_stride) + border; + ybf->u_buffer = ybf->buffer_alloc + yplane_size + (border / 2 * uv_stride) + border / 2; + ybf->v_buffer = ybf->buffer_alloc + yplane_size + uvplane_size + (border / 2 * uv_stride) + border / 2; + ybf->alpha_buffer = NULL; + + ybf->corrupted = 0; /* assume not currupted by errors */ + return 0; + } + return -2; +} + +int vp8_yv12_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, + int width, int height, int border) { + if (ybf) { + vp8_yv12_de_alloc_frame_buffer(ybf); + return vp8_yv12_realloc_frame_buffer(ybf, width, height, border); + } + return -2; +} + +#if CONFIG_VP9 +// TODO(jkoleszar): Maybe replace this with struct vpx_image + +int vp9_free_frame_buffer(YV12_BUFFER_CONFIG *ybf) { + if (ybf) { + if (ybf->buffer_alloc_sz > 0) { + vpx_free(ybf->buffer_alloc); + } + + /* buffer_alloc isn't accessed by most functions. Rather y_buffer, + u_buffer and v_buffer point to buffer_alloc and are used. Clear out + all of this so that a freed pointer isn't inadvertently used */ + memset(ybf, 0, sizeof(YV12_BUFFER_CONFIG)); + } else { + return -1; + } + + return 0; +} + +int vp9_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, + int width, int height, + int ss_x, int ss_y, +#if CONFIG_VP9_HIGHBITDEPTH + int use_highbitdepth, +#endif + int border, + int byte_alignment, + vpx_codec_frame_buffer_t *fb, + vpx_get_frame_buffer_cb_fn_t cb, + void *cb_priv) { + if (ybf) { + const int vp9_byte_align = (byte_alignment == 0) ? 1 : byte_alignment; + const int aligned_width = (width + 7) & ~7; + const int aligned_height = (height + 7) & ~7; + const int y_stride = ((aligned_width + 2 * border) + 31) & ~31; + const uint64_t yplane_size = (aligned_height + 2 * border) * + (uint64_t)y_stride + byte_alignment; + const int uv_width = aligned_width >> ss_x; + const int uv_height = aligned_height >> ss_y; + const int uv_stride = y_stride >> ss_x; + const int uv_border_w = border >> ss_x; + const int uv_border_h = border >> ss_y; + const uint64_t uvplane_size = (uv_height + 2 * uv_border_h) * + (uint64_t)uv_stride + byte_alignment; + +#if CONFIG_ALPHA + const int alpha_width = aligned_width; + const int alpha_height = aligned_height; + const int alpha_stride = y_stride; + const int alpha_border_w = border; + const int alpha_border_h = border; + const uint64_t alpha_plane_size = (alpha_height + 2 * alpha_border_h) * + (uint64_t)alpha_stride + byte_alignment; +#if CONFIG_VP9_HIGHBITDEPTH + const uint64_t frame_size = (1 + use_highbitdepth) * + (yplane_size + 2 * uvplane_size + alpha_plane_size); +#else + const uint64_t frame_size = yplane_size + 2 * uvplane_size + + alpha_plane_size; +#endif // CONFIG_VP9_HIGHBITDEPTH +#else +#if CONFIG_VP9_HIGHBITDEPTH + const uint64_t frame_size = + (1 + use_highbitdepth) * (yplane_size + 2 * uvplane_size); +#else + const uint64_t frame_size = yplane_size + 2 * uvplane_size; +#endif // CONFIG_VP9_HIGHBITDEPTH +#endif // CONFIG_ALPHA + + uint8_t *buf = NULL; + + if (cb != NULL) { + const int align_addr_extra_size = 31; + const uint64_t external_frame_size = frame_size + align_addr_extra_size; + + assert(fb != NULL); + + if (external_frame_size != (size_t)external_frame_size) + return -1; + + // Allocation to hold larger frame, or first allocation. + if (cb(cb_priv, (size_t)external_frame_size, fb) < 0) + return -1; + + if (fb->data == NULL || fb->size < external_frame_size) + return -1; + + ybf->buffer_alloc = (uint8_t *)yv12_align_addr(fb->data, 32); + } else if (frame_size > (size_t)ybf->buffer_alloc_sz) { + // Allocation to hold larger frame, or first allocation. + vpx_free(ybf->buffer_alloc); + ybf->buffer_alloc = NULL; + + if (frame_size != (size_t)frame_size) + return -1; + + ybf->buffer_alloc = (uint8_t *)vpx_memalign(32, (size_t)frame_size); + if (!ybf->buffer_alloc) + return -1; + + ybf->buffer_alloc_sz = (int)frame_size; + + // This memset is needed for fixing valgrind error from C loop filter + // due to access uninitialized memory in frame border. It could be + // removed if border is totally removed. + memset(ybf->buffer_alloc, 0, ybf->buffer_alloc_sz); + } + + /* Only support allocating buffers that have a border that's a multiple + * of 32. The border restriction is required to get 16-byte alignment of + * the start of the chroma rows without introducing an arbitrary gap + * between planes, which would break the semantics of things like + * vpx_img_set_rect(). */ + if (border & 0x1f) + return -3; + + ybf->y_crop_width = width; + ybf->y_crop_height = height; + ybf->y_width = aligned_width; + ybf->y_height = aligned_height; + ybf->y_stride = y_stride; + + ybf->uv_crop_width = (width + ss_x) >> ss_x; + ybf->uv_crop_height = (height + ss_y) >> ss_y; + ybf->uv_width = uv_width; + ybf->uv_height = uv_height; + ybf->uv_stride = uv_stride; + + ybf->border = border; + ybf->frame_size = (int)frame_size; + ybf->subsampling_x = ss_x; + ybf->subsampling_y = ss_y; + + buf = ybf->buffer_alloc; +#if CONFIG_VP9_HIGHBITDEPTH + if (use_highbitdepth) { + // Store uint16 addresses when using 16bit framebuffers + buf = CONVERT_TO_BYTEPTR(ybf->buffer_alloc); + ybf->flags = YV12_FLAG_HIGHBITDEPTH; + } else { + ybf->flags = 0; + } +#endif // CONFIG_VP9_HIGHBITDEPTH + + ybf->y_buffer = (uint8_t *)yv12_align_addr( + buf + (border * y_stride) + border, vp9_byte_align); + ybf->u_buffer = (uint8_t *)yv12_align_addr( + buf + yplane_size + (uv_border_h * uv_stride) + uv_border_w, + vp9_byte_align); + ybf->v_buffer = (uint8_t *)yv12_align_addr( + buf + yplane_size + uvplane_size + (uv_border_h * uv_stride) + + uv_border_w, vp9_byte_align); + +#if CONFIG_ALPHA + ybf->alpha_width = alpha_width; + ybf->alpha_height = alpha_height; + ybf->alpha_stride = alpha_stride; + ybf->alpha_buffer = (uint8_t *)yv12_align_addr( + buf + yplane_size + 2 * uvplane_size + + (alpha_border_h * alpha_stride) + alpha_border_w, vp9_byte_align); +#endif + ybf->corrupted = 0; /* assume not corrupted by errors */ + return 0; + } + return -2; +} + +int vp9_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, + int width, int height, + int ss_x, int ss_y, +#if CONFIG_VP9_HIGHBITDEPTH + int use_highbitdepth, +#endif + int border, + int byte_alignment) { + if (ybf) { + vp9_free_frame_buffer(ybf); + return vp9_realloc_frame_buffer(ybf, width, height, ss_x, ss_y, +#if CONFIG_VP9_HIGHBITDEPTH + use_highbitdepth, +#endif + border, byte_alignment, NULL, NULL, NULL); + } + return -2; +} +#endif diff --git a/media/libvpx/vpx_scale/generic/yv12extend.c b/media/libvpx/vpx_scale/generic/yv12extend.c new file mode 100644 index 000000000..086e2f398 --- /dev/null +++ b/media/libvpx/vpx_scale/generic/yv12extend.c @@ -0,0 +1,324 @@ +/* + * Copyright (c) 2010 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#include <assert.h> +#include "./vpx_config.h" +#include "./vpx_scale_rtcd.h" +#include "vpx/vpx_integer.h" +#include "vpx_mem/vpx_mem.h" +#include "vpx_ports/mem.h" +#include "vpx_scale/yv12config.h" +#if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH +#include "vp9/common/vp9_common.h" +#endif + +static void extend_plane(uint8_t *const src, int src_stride, + int width, int height, + int extend_top, int extend_left, + int extend_bottom, int extend_right) { + int i; + const int linesize = extend_left + extend_right + width; + + /* copy the left and right most columns out */ + uint8_t *src_ptr1 = src; + uint8_t *src_ptr2 = src + width - 1; + uint8_t *dst_ptr1 = src - extend_left; + uint8_t *dst_ptr2 = src + width; + + for (i = 0; i < height; ++i) { + memset(dst_ptr1, src_ptr1[0], extend_left); + memset(dst_ptr2, src_ptr2[0], extend_right); + src_ptr1 += src_stride; + src_ptr2 += src_stride; + dst_ptr1 += src_stride; + dst_ptr2 += src_stride; + } + + /* Now copy the top and bottom lines into each line of the respective + * borders + */ + src_ptr1 = src - extend_left; + src_ptr2 = src + src_stride * (height - 1) - extend_left; + dst_ptr1 = src + src_stride * -extend_top - extend_left; + dst_ptr2 = src + src_stride * height - extend_left; + + for (i = 0; i < extend_top; ++i) { + memcpy(dst_ptr1, src_ptr1, linesize); + dst_ptr1 += src_stride; + } + + for (i = 0; i < extend_bottom; ++i) { + memcpy(dst_ptr2, src_ptr2, linesize); + dst_ptr2 += src_stride; + } +} + +#if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH +static void extend_plane_high(uint8_t *const src8, int src_stride, + int width, int height, + int extend_top, int extend_left, + int extend_bottom, int extend_right) { + int i; + const int linesize = extend_left + extend_right + width; + uint16_t *src = CONVERT_TO_SHORTPTR(src8); + + /* copy the left and right most columns out */ + uint16_t *src_ptr1 = src; + uint16_t *src_ptr2 = src + width - 1; + uint16_t *dst_ptr1 = src - extend_left; + uint16_t *dst_ptr2 = src + width; + + for (i = 0; i < height; ++i) { + vpx_memset16(dst_ptr1, src_ptr1[0], extend_left); + vpx_memset16(dst_ptr2, src_ptr2[0], extend_right); + src_ptr1 += src_stride; + src_ptr2 += src_stride; + dst_ptr1 += src_stride; + dst_ptr2 += src_stride; + } + + /* Now copy the top and bottom lines into each line of the respective + * borders + */ + src_ptr1 = src - extend_left; + src_ptr2 = src + src_stride * (height - 1) - extend_left; + dst_ptr1 = src + src_stride * -extend_top - extend_left; + dst_ptr2 = src + src_stride * height - extend_left; + + for (i = 0; i < extend_top; ++i) { + memcpy(dst_ptr1, src_ptr1, linesize * sizeof(uint16_t)); + dst_ptr1 += src_stride; + } + + for (i = 0; i < extend_bottom; ++i) { + memcpy(dst_ptr2, src_ptr2, linesize * sizeof(uint16_t)); + dst_ptr2 += src_stride; + } +} +#endif + +void vp8_yv12_extend_frame_borders_c(YV12_BUFFER_CONFIG *ybf) { + const int uv_border = ybf->border / 2; + + assert(ybf->border % 2 == 0); + assert(ybf->y_height - ybf->y_crop_height < 16); + assert(ybf->y_width - ybf->y_crop_width < 16); + assert(ybf->y_height - ybf->y_crop_height >= 0); + assert(ybf->y_width - ybf->y_crop_width >= 0); + +#if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH + if (ybf->flags & YV12_FLAG_HIGHBITDEPTH) { + extend_plane_high( + ybf->y_buffer, ybf->y_stride, + ybf->y_crop_width, ybf->y_crop_height, + ybf->border, ybf->border, + ybf->border + ybf->y_height - ybf->y_crop_height, + ybf->border + ybf->y_width - ybf->y_crop_width); + + extend_plane_high( + ybf->u_buffer, ybf->uv_stride, + ybf->uv_crop_width, ybf->uv_crop_height, + uv_border, uv_border, + uv_border + ybf->uv_height - ybf->uv_crop_height, + uv_border + ybf->uv_width - ybf->uv_crop_width); + + extend_plane_high( + ybf->v_buffer, ybf->uv_stride, + ybf->uv_crop_width, ybf->uv_crop_height, + uv_border, uv_border, + uv_border + ybf->uv_height - ybf->uv_crop_height, + uv_border + ybf->uv_width - ybf->uv_crop_width); + return; + } +#endif + extend_plane(ybf->y_buffer, ybf->y_stride, + ybf->y_crop_width, ybf->y_crop_height, + ybf->border, ybf->border, + ybf->border + ybf->y_height - ybf->y_crop_height, + ybf->border + ybf->y_width - ybf->y_crop_width); + + extend_plane(ybf->u_buffer, ybf->uv_stride, + ybf->uv_crop_width, ybf->uv_crop_height, + uv_border, uv_border, + uv_border + ybf->uv_height - ybf->uv_crop_height, + uv_border + ybf->uv_width - ybf->uv_crop_width); + + extend_plane(ybf->v_buffer, ybf->uv_stride, + ybf->uv_crop_width, ybf->uv_crop_height, + uv_border, uv_border, + uv_border + ybf->uv_height - ybf->uv_crop_height, + uv_border + ybf->uv_width - ybf->uv_crop_width); +} + +#if CONFIG_VP9 +static void extend_frame(YV12_BUFFER_CONFIG *const ybf, int ext_size) { + const int c_w = ybf->uv_crop_width; + const int c_h = ybf->uv_crop_height; + const int ss_x = ybf->uv_width < ybf->y_width; + const int ss_y = ybf->uv_height < ybf->y_height; + const int c_et = ext_size >> ss_y; + const int c_el = ext_size >> ss_x; + const int c_eb = c_et + ybf->uv_height - ybf->uv_crop_height; + const int c_er = c_el + ybf->uv_width - ybf->uv_crop_width; + + assert(ybf->y_height - ybf->y_crop_height < 16); + assert(ybf->y_width - ybf->y_crop_width < 16); + assert(ybf->y_height - ybf->y_crop_height >= 0); + assert(ybf->y_width - ybf->y_crop_width >= 0); + +#if CONFIG_VP9_HIGHBITDEPTH + if (ybf->flags & YV12_FLAG_HIGHBITDEPTH) { + extend_plane_high(ybf->y_buffer, ybf->y_stride, + ybf->y_crop_width, ybf->y_crop_height, + ext_size, ext_size, + ext_size + ybf->y_height - ybf->y_crop_height, + ext_size + ybf->y_width - ybf->y_crop_width); + extend_plane_high(ybf->u_buffer, ybf->uv_stride, + c_w, c_h, c_et, c_el, c_eb, c_er); + extend_plane_high(ybf->v_buffer, ybf->uv_stride, + c_w, c_h, c_et, c_el, c_eb, c_er); + return; + } +#endif + extend_plane(ybf->y_buffer, ybf->y_stride, + ybf->y_crop_width, ybf->y_crop_height, + ext_size, ext_size, + ext_size + ybf->y_height - ybf->y_crop_height, + ext_size + ybf->y_width - ybf->y_crop_width); + + extend_plane(ybf->u_buffer, ybf->uv_stride, + c_w, c_h, c_et, c_el, c_eb, c_er); + + extend_plane(ybf->v_buffer, ybf->uv_stride, + c_w, c_h, c_et, c_el, c_eb, c_er); +} + +void vp9_extend_frame_borders_c(YV12_BUFFER_CONFIG *ybf) { + extend_frame(ybf, ybf->border); +} + +void vp9_extend_frame_inner_borders_c(YV12_BUFFER_CONFIG *ybf) { + const int inner_bw = (ybf->border > VP9INNERBORDERINPIXELS) ? + VP9INNERBORDERINPIXELS : ybf->border; + extend_frame(ybf, inner_bw); +} + +#if CONFIG_VP9_HIGHBITDEPTH +void memcpy_short_addr(uint8_t *dst8, const uint8_t *src8, int num) { + uint16_t *dst = CONVERT_TO_SHORTPTR(dst8); + uint16_t *src = CONVERT_TO_SHORTPTR(src8); + memcpy(dst, src, num * sizeof(uint16_t)); +} +#endif // CONFIG_VP9_HIGHBITDEPTH +#endif // CONFIG_VP9 + +// Copies the source image into the destination image and updates the +// destination's UMV borders. +// Note: The frames are assumed to be identical in size. +void vp8_yv12_copy_frame_c(const YV12_BUFFER_CONFIG *src_ybc, + YV12_BUFFER_CONFIG *dst_ybc) { + int row; + const uint8_t *src = src_ybc->y_buffer; + uint8_t *dst = dst_ybc->y_buffer; + +#if 0 + /* These assertions are valid in the codec, but the libvpx-tester uses + * this code slightly differently. + */ + assert(src_ybc->y_width == dst_ybc->y_width); + assert(src_ybc->y_height == dst_ybc->y_height); +#endif + +#if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH + if (src_ybc->flags & YV12_FLAG_HIGHBITDEPTH) { + assert(dst_ybc->flags & YV12_FLAG_HIGHBITDEPTH); + for (row = 0; row < src_ybc->y_height; ++row) { + memcpy_short_addr(dst, src, src_ybc->y_width); + src += src_ybc->y_stride; + dst += dst_ybc->y_stride; + } + + src = src_ybc->u_buffer; + dst = dst_ybc->u_buffer; + + for (row = 0; row < src_ybc->uv_height; ++row) { + memcpy_short_addr(dst, src, src_ybc->uv_width); + src += src_ybc->uv_stride; + dst += dst_ybc->uv_stride; + } + + src = src_ybc->v_buffer; + dst = dst_ybc->v_buffer; + + for (row = 0; row < src_ybc->uv_height; ++row) { + memcpy_short_addr(dst, src, src_ybc->uv_width); + src += src_ybc->uv_stride; + dst += dst_ybc->uv_stride; + } + + vp8_yv12_extend_frame_borders_c(dst_ybc); + return; + } else { + assert(!(dst_ybc->flags & YV12_FLAG_HIGHBITDEPTH)); + } +#endif + + for (row = 0; row < src_ybc->y_height; ++row) { + memcpy(dst, src, src_ybc->y_width); + src += src_ybc->y_stride; + dst += dst_ybc->y_stride; + } + + src = src_ybc->u_buffer; + dst = dst_ybc->u_buffer; + + for (row = 0; row < src_ybc->uv_height; ++row) { + memcpy(dst, src, src_ybc->uv_width); + src += src_ybc->uv_stride; + dst += dst_ybc->uv_stride; + } + + src = src_ybc->v_buffer; + dst = dst_ybc->v_buffer; + + for (row = 0; row < src_ybc->uv_height; ++row) { + memcpy(dst, src, src_ybc->uv_width); + src += src_ybc->uv_stride; + dst += dst_ybc->uv_stride; + } + + vp8_yv12_extend_frame_borders_c(dst_ybc); +} + +void vpx_yv12_copy_y_c(const YV12_BUFFER_CONFIG *src_ybc, + YV12_BUFFER_CONFIG *dst_ybc) { + int row; + const uint8_t *src = src_ybc->y_buffer; + uint8_t *dst = dst_ybc->y_buffer; + +#if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH + if (src_ybc->flags & YV12_FLAG_HIGHBITDEPTH) { + const uint16_t *src16 = CONVERT_TO_SHORTPTR(src); + uint16_t *dst16 = CONVERT_TO_SHORTPTR(dst); + for (row = 0; row < src_ybc->y_height; ++row) { + memcpy(dst16, src16, src_ybc->y_width * sizeof(uint16_t)); + src16 += src_ybc->y_stride; + dst16 += dst_ybc->y_stride; + } + return; + } +#endif + + for (row = 0; row < src_ybc->y_height; ++row) { + memcpy(dst, src, src_ybc->y_width); + src += src_ybc->y_stride; + dst += dst_ybc->y_stride; + } +} |