From 01bb4a6c21c225e55a84ac606a3b213909023ba0 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 9 Apr 2024 11:59:14 +0200 Subject: Adding upstream version 2.4.120. Signed-off-by: Daniel Baumann --- tests/util/pattern.c | 1902 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1902 insertions(+) create mode 100644 tests/util/pattern.c (limited to 'tests/util/pattern.c') diff --git a/tests/util/pattern.c b/tests/util/pattern.c new file mode 100644 index 0000000..2ff9c03 --- /dev/null +++ b/tests/util/pattern.c @@ -0,0 +1,1902 @@ +/* + * Copyright 2008 Tungsten Graphics + * Jakob Bornecrantz + * Copyright 2008 Intel Corporation + * Jesse Barnes + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include +#include +#include +#include +#include + +#include + +#if HAVE_CAIRO +#include +#include +#endif + +#include "common.h" +#include "format.h" +#include "pattern.h" + +struct color_rgb24 { + unsigned int value:24; +} __attribute__((__packed__)); + +struct color_yuv { + unsigned char y; + unsigned char u; + unsigned char v; +}; + +#define MAKE_YUV_601_Y(r, g, b) \ + ((( 66 * (r) + 129 * (g) + 25 * (b) + 128) >> 8) + 16) +#define MAKE_YUV_601_U(r, g, b) \ + (((-38 * (r) - 74 * (g) + 112 * (b) + 128) >> 8) + 128) +#define MAKE_YUV_601_V(r, g, b) \ + (((112 * (r) - 94 * (g) - 18 * (b) + 128) >> 8) + 128) + +#define MAKE_YUV_601(r, g, b) \ + { .y = MAKE_YUV_601_Y(r, g, b), \ + .u = MAKE_YUV_601_U(r, g, b), \ + .v = MAKE_YUV_601_V(r, g, b) } + +static inline uint16_t swap16(uint16_t x) +{ + return ((x & 0x00ffU) << 8) | ((x & 0xff00U) >> 8); +} + +static inline uint32_t swap32(uint32_t x) +{ + return ((x & 0x000000ffU) << 24) | + ((x & 0x0000ff00U) << 8) | + ((x & 0x00ff0000U) >> 8) | + ((x & 0xff000000U) >> 24); +} + +#ifdef HAVE_BIG_ENDIAN +#define cpu_to_be16(x) (x) +#define cpu_to_le16(x) swap16(x) +#define cpu_to_le32(x) swap32(x) +#define fb_foreign_endian(format) (!((format) & DRM_FORMAT_BIG_ENDIAN)) +#else +#define cpu_to_be16(x) swap16(x) +#define cpu_to_le16(x) (x) +#define cpu_to_le32(x) (x) +#define fb_foreign_endian(format) ((format) & DRM_FORMAT_BIG_ENDIAN) +#endif + +#define cpu_to_fb16(x) (fb_be ? cpu_to_be16(x) : cpu_to_le16(x)) + +/* This function takes 8-bit color values */ +static inline uint32_t shiftcolor8(const struct util_color_component *comp, + uint32_t value) +{ + value &= 0xff; + /* Fill the low bits with the high bits. */ + value = (value << 8) | value; + /* Shift down to remove unwanted low bits */ + value = value >> (16 - comp->length); + /* Shift back up to where the value should be */ + return value << comp->offset; +} + +/* This function takes 10-bit color values */ +static inline uint32_t shiftcolor10(const struct util_color_component *comp, + uint32_t value) +{ + value &= 0x3ff; + /* Fill the low bits with the high bits. */ + value = (value << 6) | (value >> 4); + /* Shift down to remove unwanted low bits */ + value = value >> (16 - comp->length); + /* Shift back up to where the value should be */ + return value << comp->offset; +} + +/* This function takes 16-bit color values */ +static inline uint64_t shiftcolor16(const struct util_color_component *comp, + uint64_t value) +{ + value &= 0xffff; + /* Shift down to remove unwanted low bits */ + value = value >> (16 - comp->length); + /* Shift back up to where the value should be */ + return value << comp->offset; +} + +#define MAKE_RGBA10(rgb, r, g, b, a) \ + (shiftcolor10(&(rgb)->red, (r)) | \ + shiftcolor10(&(rgb)->green, (g)) | \ + shiftcolor10(&(rgb)->blue, (b)) | \ + shiftcolor10(&(rgb)->alpha, (a))) + +#define MAKE_RGBA(rgb, r, g, b, a) \ + (shiftcolor8(&(rgb)->red, (r)) | \ + shiftcolor8(&(rgb)->green, (g)) | \ + shiftcolor8(&(rgb)->blue, (b)) | \ + shiftcolor8(&(rgb)->alpha, (a))) + +#define MAKE_RGB24(rgb, r, g, b) \ + { .value = MAKE_RGBA(rgb, r, g, b, 0) } + + +/** + * Takes a uint16_t, divides by 65536, converts the infinite-precision + * result to fp16 with round-to-zero. + * + * Copied from mesa:src/util/half_float.c + */ +static uint16_t uint16_div_64k_to_half(uint16_t v) +{ + /* Zero or subnormal. Set the mantissa to (v << 8) and return. */ + if (v < 4) + return v << 8; + + /* Count the leading 0s in the uint16_t */ + int n = __builtin_clz(v) - 16; + + /* Shift the mantissa up so bit 16 is the hidden 1 bit, + * mask it off, then shift back down to 10 bits + */ + int m = ( ((uint32_t)v << (n + 1)) & 0xffff ) >> 6; + + /* (0{n} 1 X{15-n}) * 2^-16 + * = 1.X * 2^(15-n-16) + * = 1.X * 2^(14-n - 15) + * which is the FP16 form with e = 14 - n + */ + int e = 14 - n; + + return (e << 10) | m; +} + +#define MAKE_RGBA8FP16(rgb, r, g, b, a) \ + (shiftcolor16(&(rgb)->red, uint16_div_64k_to_half((r) << 8)) | \ + shiftcolor16(&(rgb)->green, uint16_div_64k_to_half((g) << 8)) | \ + shiftcolor16(&(rgb)->blue, uint16_div_64k_to_half((b) << 8)) | \ + shiftcolor16(&(rgb)->alpha, uint16_div_64k_to_half((a) << 8))) + +#define MAKE_RGBA10FP16(rgb, r, g, b, a) \ + (shiftcolor16(&(rgb)->red, uint16_div_64k_to_half((r) << 6)) | \ + shiftcolor16(&(rgb)->green, uint16_div_64k_to_half((g) << 6)) | \ + shiftcolor16(&(rgb)->blue, uint16_div_64k_to_half((b) << 6)) | \ + shiftcolor16(&(rgb)->alpha, uint16_div_64k_to_half((a) << 6))) + +static void fill_smpte_yuv_planar(const struct util_yuv_info *yuv, + unsigned char *y_mem, unsigned char *u_mem, + unsigned char *v_mem, unsigned int width, + unsigned int height, unsigned int stride) +{ + const struct color_yuv colors_top[] = { + MAKE_YUV_601(192, 192, 192), /* grey */ + MAKE_YUV_601(192, 192, 0), /* yellow */ + MAKE_YUV_601(0, 192, 192), /* cyan */ + MAKE_YUV_601(0, 192, 0), /* green */ + MAKE_YUV_601(192, 0, 192), /* magenta */ + MAKE_YUV_601(192, 0, 0), /* red */ + MAKE_YUV_601(0, 0, 192), /* blue */ + }; + const struct color_yuv colors_middle[] = { + MAKE_YUV_601(0, 0, 192), /* blue */ + MAKE_YUV_601(19, 19, 19), /* black */ + MAKE_YUV_601(192, 0, 192), /* magenta */ + MAKE_YUV_601(19, 19, 19), /* black */ + MAKE_YUV_601(0, 192, 192), /* cyan */ + MAKE_YUV_601(19, 19, 19), /* black */ + MAKE_YUV_601(192, 192, 192), /* grey */ + }; + const struct color_yuv colors_bottom[] = { + MAKE_YUV_601(0, 33, 76), /* in-phase */ + MAKE_YUV_601(255, 255, 255), /* super white */ + MAKE_YUV_601(50, 0, 106), /* quadrature */ + MAKE_YUV_601(19, 19, 19), /* black */ + MAKE_YUV_601(9, 9, 9), /* 3.5% */ + MAKE_YUV_601(19, 19, 19), /* 7.5% */ + MAKE_YUV_601(29, 29, 29), /* 11.5% */ + MAKE_YUV_601(19, 19, 19), /* black */ + }; + unsigned int cs = yuv->chroma_stride; + unsigned int xsub = yuv->xsub; + unsigned int ysub = yuv->ysub; + unsigned int x; + unsigned int y; + + /* Luma */ + for (y = 0; y < height * 6 / 9; ++y) { + for (x = 0; x < width; ++x) + y_mem[x] = colors_top[x * 7 / width].y; + y_mem += stride; + } + + for (; y < height * 7 / 9; ++y) { + for (x = 0; x < width; ++x) + y_mem[x] = colors_middle[x * 7 / width].y; + y_mem += stride; + } + + for (; y < height; ++y) { + for (x = 0; x < width * 5 / 7; ++x) + y_mem[x] = colors_bottom[x * 4 / (width * 5 / 7)].y; + for (; x < width * 6 / 7; ++x) + y_mem[x] = colors_bottom[(x - width * 5 / 7) * 3 + / (width / 7) + 4].y; + for (; x < width; ++x) + y_mem[x] = colors_bottom[7].y; + y_mem += stride; + } + + /* Chroma */ + for (y = 0; y < height / ysub * 6 / 9; ++y) { + for (x = 0; x < width; x += xsub) { + u_mem[x*cs/xsub] = colors_top[x * 7 / width].u; + v_mem[x*cs/xsub] = colors_top[x * 7 / width].v; + } + u_mem += stride * cs / xsub; + v_mem += stride * cs / xsub; + } + + for (; y < height / ysub * 7 / 9; ++y) { + for (x = 0; x < width; x += xsub) { + u_mem[x*cs/xsub] = colors_middle[x * 7 / width].u; + v_mem[x*cs/xsub] = colors_middle[x * 7 / width].v; + } + u_mem += stride * cs / xsub; + v_mem += stride * cs / xsub; + } + + for (; y < height / ysub; ++y) { + for (x = 0; x < width * 5 / 7; x += xsub) { + u_mem[x*cs/xsub] = + colors_bottom[x * 4 / (width * 5 / 7)].u; + v_mem[x*cs/xsub] = + colors_bottom[x * 4 / (width * 5 / 7)].v; + } + for (; x < width * 6 / 7; x += xsub) { + u_mem[x*cs/xsub] = colors_bottom[(x - width * 5 / 7) * + 3 / (width / 7) + 4].u; + v_mem[x*cs/xsub] = colors_bottom[(x - width * 5 / 7) * + 3 / (width / 7) + 4].v; + } + for (; x < width; x += xsub) { + u_mem[x*cs/xsub] = colors_bottom[7].u; + v_mem[x*cs/xsub] = colors_bottom[7].v; + } + u_mem += stride * cs / xsub; + v_mem += stride * cs / xsub; + } +} + +static void write_pixels_10bpp(unsigned char *mem, + unsigned short a, + unsigned short b, + unsigned short c, + unsigned short d) +{ + mem[0] = (a & 0xff); + mem[1] = ((a >> 8) & 0x3) | ((b & 0x3f) << 2); + mem[2] = ((b >> 6) & 0xf) | ((c & 0xf) << 4); + mem[3] = ((c >> 4) & 0x3f) | ((d & 0x3) << 6); + mem[4] = ((d >> 2) & 0xff); +} + +static void fill_smpte_yuv_planar_10bpp(const struct util_yuv_info *yuv, + unsigned char *y_mem, + unsigned char *uv_mem, + unsigned int width, + unsigned int height, + unsigned int stride) +{ + const struct color_yuv colors_top[] = { + MAKE_YUV_601(192, 192, 192), /* grey */ + MAKE_YUV_601(192, 192, 0), /* yellow */ + MAKE_YUV_601(0, 192, 192), /* cyan */ + MAKE_YUV_601(0, 192, 0), /* green */ + MAKE_YUV_601(192, 0, 192), /* magenta */ + MAKE_YUV_601(192, 0, 0), /* red */ + MAKE_YUV_601(0, 0, 192), /* blue */ + }; + const struct color_yuv colors_middle[] = { + MAKE_YUV_601(0, 0, 192), /* blue */ + MAKE_YUV_601(19, 19, 19), /* black */ + MAKE_YUV_601(192, 0, 192), /* magenta */ + MAKE_YUV_601(19, 19, 19), /* black */ + MAKE_YUV_601(0, 192, 192), /* cyan */ + MAKE_YUV_601(19, 19, 19), /* black */ + MAKE_YUV_601(192, 192, 192), /* grey */ + }; + const struct color_yuv colors_bottom[] = { + MAKE_YUV_601(0, 33, 76), /* in-phase */ + MAKE_YUV_601(255, 255, 255), /* super white */ + MAKE_YUV_601(50, 0, 106), /* quadrature */ + MAKE_YUV_601(19, 19, 19), /* black */ + MAKE_YUV_601(9, 9, 9), /* 3.5% */ + MAKE_YUV_601(19, 19, 19), /* 7.5% */ + MAKE_YUV_601(29, 29, 29), /* 11.5% */ + MAKE_YUV_601(19, 19, 19), /* black */ + }; + unsigned int cs = yuv->chroma_stride; + unsigned int xsub = yuv->xsub; + unsigned int ysub = yuv->ysub; + unsigned int xstep = cs * xsub; + unsigned int x; + unsigned int y; + + /* Luma */ + for (y = 0; y < height * 6 / 9; ++y) { + for (x = 0; x < width; x += 4) + write_pixels_10bpp(&y_mem[(x * 5) / 4], + colors_top[(x+0) * 7 / width].y << 2, + colors_top[(x+1) * 7 / width].y << 2, + colors_top[(x+2) * 7 / width].y << 2, + colors_top[(x+3) * 7 / width].y << 2); + y_mem += stride; + } + + for (; y < height * 7 / 9; ++y) { + for (x = 0; x < width; x += 4) + write_pixels_10bpp(&y_mem[(x * 5) / 4], + colors_middle[(x+0) * 7 / width].y << 2, + colors_middle[(x+1) * 7 / width].y << 2, + colors_middle[(x+2) * 7 / width].y << 2, + colors_middle[(x+3) * 7 / width].y << 2); + y_mem += stride; + } + + for (; y < height; ++y) { + for (x = 0; x < width * 5 / 7; x += 4) + write_pixels_10bpp(&y_mem[(x * 5) / 4], + colors_bottom[(x+0) * 4 / (width * 5 / 7)].y << 2, + colors_bottom[(x+1) * 4 / (width * 5 / 7)].y << 2, + colors_bottom[(x+2) * 4 / (width * 5 / 7)].y << 2, + colors_bottom[(x+3) * 4 / (width * 5 / 7)].y << 2); + for (; x < width * 6 / 7; x += 4) + write_pixels_10bpp(&y_mem[(x * 5) / 4], + colors_bottom[((x+0) - width * 5 / 7) * 3 / (width / 7) + 4].y << 2, + colors_bottom[((x+1) - width * 5 / 7) * 3 / (width / 7) + 4].y << 2, + colors_bottom[((x+2) - width * 5 / 7) * 3 / (width / 7) + 4].y << 2, + colors_bottom[((x+3) - width * 5 / 7) * 3 / (width / 7) + 4].y << 2); + for (; x < width; x += 4) + write_pixels_10bpp(&y_mem[(x * 5) / 4], + colors_bottom[7].y << 2, + colors_bottom[7].y << 2, + colors_bottom[7].y << 2, + colors_bottom[7].y << 2); + y_mem += stride; + } + + /* Chroma */ + for (y = 0; y < height * 6 / 9; y += ysub) { + for (x = 0; x < width; x += xstep) + write_pixels_10bpp(&uv_mem[(x * 5) / xstep], + colors_top[(x+0) * 7 / width].u << 2, + colors_top[(x+0) * 7 / width].v << 2, + colors_top[(x+xsub) * 7 / width].u << 2, + colors_top[(x+xsub) * 7 / width].v << 2); + uv_mem += stride * cs / xsub; + } + + for (; y < height * 7 / 9; y += ysub) { + for (x = 0; x < width; x += xstep) + write_pixels_10bpp(&uv_mem[(x * 5) / xstep], + colors_middle[(x+0) * 7 / width].u << 2, + colors_middle[(x+0) * 7 / width].v << 2, + colors_middle[(x+xsub) * 7 / width].u << 2, + colors_middle[(x+xsub) * 7 / width].v << 2); + uv_mem += stride * cs / xsub; + } + + for (; y < height; y += ysub) { + for (x = 0; x < width * 5 / 7; x += xstep) + write_pixels_10bpp(&uv_mem[(x * 5) / xstep], + colors_bottom[(x+0) * 4 / (width * 5 / 7)].u << 2, + colors_bottom[(x+0) * 4 / (width * 5 / 7)].v << 2, + colors_bottom[(x+xsub) * 4 / (width * 5 / 7)].u << 2, + colors_bottom[(x+xsub) * 4 / (width * 5 / 7)].v << 2); + for (; x < width * 6 / 7; x += xstep) + write_pixels_10bpp(&uv_mem[(x * 5) / xstep], + colors_bottom[((x+0) - width * 5 / 7) * 3 / (width / 7) + 4].u << 2, + colors_bottom[((x+0) - width * 5 / 7) * 3 / (width / 7) + 4].v << 2, + colors_bottom[((x+xsub) - width * 5 / 7) * 3 / (width / 7) + 4].u << 2, + colors_bottom[((x+xsub) - width * 5 / 7) * 3 / (width / 7) + 4].v << 2); + for (; x < width; x += xstep) + write_pixels_10bpp(&uv_mem[(x * 5) / xstep], + colors_bottom[7].u << 2, + colors_bottom[7].v << 2, + colors_bottom[7].u << 2, + colors_bottom[7].v << 2); + uv_mem += stride * cs / xsub; + } +} + +static void fill_smpte_yuv_packed(const struct util_yuv_info *yuv, void *mem, + unsigned int width, unsigned int height, + unsigned int stride) +{ + const struct color_yuv colors_top[] = { + MAKE_YUV_601(192, 192, 192), /* grey */ + MAKE_YUV_601(192, 192, 0), /* yellow */ + MAKE_YUV_601(0, 192, 192), /* cyan */ + MAKE_YUV_601(0, 192, 0), /* green */ + MAKE_YUV_601(192, 0, 192), /* magenta */ + MAKE_YUV_601(192, 0, 0), /* red */ + MAKE_YUV_601(0, 0, 192), /* blue */ + }; + const struct color_yuv colors_middle[] = { + MAKE_YUV_601(0, 0, 192), /* blue */ + MAKE_YUV_601(19, 19, 19), /* black */ + MAKE_YUV_601(192, 0, 192), /* magenta */ + MAKE_YUV_601(19, 19, 19), /* black */ + MAKE_YUV_601(0, 192, 192), /* cyan */ + MAKE_YUV_601(19, 19, 19), /* black */ + MAKE_YUV_601(192, 192, 192), /* grey */ + }; + const struct color_yuv colors_bottom[] = { + MAKE_YUV_601(0, 33, 76), /* in-phase */ + MAKE_YUV_601(255, 255, 255), /* super white */ + MAKE_YUV_601(50, 0, 106), /* quadrature */ + MAKE_YUV_601(19, 19, 19), /* black */ + MAKE_YUV_601(9, 9, 9), /* 3.5% */ + MAKE_YUV_601(19, 19, 19), /* 7.5% */ + MAKE_YUV_601(29, 29, 29), /* 11.5% */ + MAKE_YUV_601(19, 19, 19), /* black */ + }; + unsigned char *y_mem = (yuv->order & YUV_YC) ? mem : mem + 1; + unsigned char *c_mem = (yuv->order & YUV_CY) ? mem : mem + 1; + unsigned int u = (yuv->order & YUV_YCrCb) ? 2 : 0; + unsigned int v = (yuv->order & YUV_YCbCr) ? 2 : 0; + unsigned int x; + unsigned int y; + + /* Luma */ + for (y = 0; y < height * 6 / 9; ++y) { + for (x = 0; x < width; ++x) + y_mem[2*x] = colors_top[x * 7 / width].y; + y_mem += stride; + } + + for (; y < height * 7 / 9; ++y) { + for (x = 0; x < width; ++x) + y_mem[2*x] = colors_middle[x * 7 / width].y; + y_mem += stride; + } + + for (; y < height; ++y) { + for (x = 0; x < width * 5 / 7; ++x) + y_mem[2*x] = colors_bottom[x * 4 / (width * 5 / 7)].y; + for (; x < width * 6 / 7; ++x) + y_mem[2*x] = colors_bottom[(x - width * 5 / 7) * 3 + / (width / 7) + 4].y; + for (; x < width; ++x) + y_mem[2*x] = colors_bottom[7].y; + y_mem += stride; + } + + /* Chroma */ + for (y = 0; y < height * 6 / 9; ++y) { + for (x = 0; x < width; x += 2) { + c_mem[2*x+u] = colors_top[x * 7 / width].u; + c_mem[2*x+v] = colors_top[x * 7 / width].v; + } + c_mem += stride; + } + + for (; y < height * 7 / 9; ++y) { + for (x = 0; x < width; x += 2) { + c_mem[2*x+u] = colors_middle[x * 7 / width].u; + c_mem[2*x+v] = colors_middle[x * 7 / width].v; + } + c_mem += stride; + } + + for (; y < height; ++y) { + for (x = 0; x < width * 5 / 7; x += 2) { + c_mem[2*x+u] = colors_bottom[x * 4 / (width * 5 / 7)].u; + c_mem[2*x+v] = colors_bottom[x * 4 / (width * 5 / 7)].v; + } + for (; x < width * 6 / 7; x += 2) { + c_mem[2*x+u] = colors_bottom[(x - width * 5 / 7) * + 3 / (width / 7) + 4].u; + c_mem[2*x+v] = colors_bottom[(x - width * 5 / 7) * + 3 / (width / 7) + 4].v; + } + for (; x < width; x += 2) { + c_mem[2*x+u] = colors_bottom[7].u; + c_mem[2*x+v] = colors_bottom[7].v; + } + c_mem += stride; + } +} + +static void fill_smpte_rgb16(const struct util_rgb_info *rgb, void *mem, + unsigned int width, unsigned int height, + unsigned int stride, bool fb_be) +{ + const uint16_t colors_top[] = { + MAKE_RGBA(rgb, 192, 192, 192, 255), /* grey */ + MAKE_RGBA(rgb, 192, 192, 0, 255), /* yellow */ + MAKE_RGBA(rgb, 0, 192, 192, 255), /* cyan */ + MAKE_RGBA(rgb, 0, 192, 0, 255), /* green */ + MAKE_RGBA(rgb, 192, 0, 192, 255), /* magenta */ + MAKE_RGBA(rgb, 192, 0, 0, 255), /* red */ + MAKE_RGBA(rgb, 0, 0, 192, 255), /* blue */ + }; + const uint16_t colors_middle[] = { + MAKE_RGBA(rgb, 0, 0, 192, 127), /* blue */ + MAKE_RGBA(rgb, 19, 19, 19, 127), /* black */ + MAKE_RGBA(rgb, 192, 0, 192, 127), /* magenta */ + MAKE_RGBA(rgb, 19, 19, 19, 127), /* black */ + MAKE_RGBA(rgb, 0, 192, 192, 127), /* cyan */ + MAKE_RGBA(rgb, 19, 19, 19, 127), /* black */ + MAKE_RGBA(rgb, 192, 192, 192, 127), /* grey */ + }; + const uint16_t colors_bottom[] = { + MAKE_RGBA(rgb, 0, 33, 76, 255), /* in-phase */ + MAKE_RGBA(rgb, 255, 255, 255, 255), /* super white */ + MAKE_RGBA(rgb, 50, 0, 106, 255), /* quadrature */ + MAKE_RGBA(rgb, 19, 19, 19, 255), /* black */ + MAKE_RGBA(rgb, 9, 9, 9, 255), /* 3.5% */ + MAKE_RGBA(rgb, 19, 19, 19, 255), /* 7.5% */ + MAKE_RGBA(rgb, 29, 29, 29, 255), /* 11.5% */ + MAKE_RGBA(rgb, 19, 19, 19, 255), /* black */ + }; + unsigned int x; + unsigned int y; + + for (y = 0; y < height * 6 / 9; ++y) { + for (x = 0; x < width; ++x) + ((uint16_t *)mem)[x] = cpu_to_fb16(colors_top[x * 7 / width]); + mem += stride; + } + + for (; y < height * 7 / 9; ++y) { + for (x = 0; x < width; ++x) + ((uint16_t *)mem)[x] = cpu_to_fb16(colors_middle[x * 7 / width]); + mem += stride; + } + + for (; y < height; ++y) { + for (x = 0; x < width * 5 / 7; ++x) + ((uint16_t *)mem)[x] = + cpu_to_fb16(colors_bottom[x * 4 / (width * 5 / 7)]); + for (; x < width * 6 / 7; ++x) + ((uint16_t *)mem)[x] = + cpu_to_fb16(colors_bottom[(x - width * 5 / 7) * 3 + / (width / 7) + 4]); + for (; x < width; ++x) + ((uint16_t *)mem)[x] = cpu_to_fb16(colors_bottom[7]); + mem += stride; + } +} + +static void fill_smpte_rgb24(const struct util_rgb_info *rgb, void *mem, + unsigned int width, unsigned int height, + unsigned int stride) +{ + const struct color_rgb24 colors_top[] = { + MAKE_RGB24(rgb, 192, 192, 192), /* grey */ + MAKE_RGB24(rgb, 192, 192, 0), /* yellow */ + MAKE_RGB24(rgb, 0, 192, 192), /* cyan */ + MAKE_RGB24(rgb, 0, 192, 0), /* green */ + MAKE_RGB24(rgb, 192, 0, 192), /* magenta */ + MAKE_RGB24(rgb, 192, 0, 0), /* red */ + MAKE_RGB24(rgb, 0, 0, 192), /* blue */ + }; + const struct color_rgb24 colors_middle[] = { + MAKE_RGB24(rgb, 0, 0, 192), /* blue */ + MAKE_RGB24(rgb, 19, 19, 19), /* black */ + MAKE_RGB24(rgb, 192, 0, 192), /* magenta */ + MAKE_RGB24(rgb, 19, 19, 19), /* black */ + MAKE_RGB24(rgb, 0, 192, 192), /* cyan */ + MAKE_RGB24(rgb, 19, 19, 19), /* black */ + MAKE_RGB24(rgb, 192, 192, 192), /* grey */ + }; + const struct color_rgb24 colors_bottom[] = { + MAKE_RGB24(rgb, 0, 33, 76), /* in-phase */ + MAKE_RGB24(rgb, 255, 255, 255), /* super white */ + MAKE_RGB24(rgb, 50, 0, 106), /* quadrature */ + MAKE_RGB24(rgb, 19, 19, 19), /* black */ + MAKE_RGB24(rgb, 9, 9, 9), /* 3.5% */ + MAKE_RGB24(rgb, 19, 19, 19), /* 7.5% */ + MAKE_RGB24(rgb, 29, 29, 29), /* 11.5% */ + MAKE_RGB24(rgb, 19, 19, 19), /* black */ + }; + unsigned int x; + unsigned int y; + + for (y = 0; y < height * 6 / 9; ++y) { + for (x = 0; x < width; ++x) + ((struct color_rgb24 *)mem)[x] = + colors_top[x * 7 / width]; + mem += stride; + } + + for (; y < height * 7 / 9; ++y) { + for (x = 0; x < width; ++x) + ((struct color_rgb24 *)mem)[x] = + colors_middle[x * 7 / width]; + mem += stride; + } + + for (; y < height; ++y) { + for (x = 0; x < width * 5 / 7; ++x) + ((struct color_rgb24 *)mem)[x] = + colors_bottom[x * 4 / (width * 5 / 7)]; + for (; x < width * 6 / 7; ++x) + ((struct color_rgb24 *)mem)[x] = + colors_bottom[(x - width * 5 / 7) * 3 + / (width / 7) + 4]; + for (; x < width; ++x) + ((struct color_rgb24 *)mem)[x] = colors_bottom[7]; + mem += stride; + } +} + +static void fill_smpte_rgb32(const struct util_rgb_info *rgb, void *mem, + unsigned int width, unsigned int height, + unsigned int stride) +{ + const uint32_t colors_top[] = { + MAKE_RGBA(rgb, 192, 192, 192, 255), /* grey */ + MAKE_RGBA(rgb, 192, 192, 0, 255), /* yellow */ + MAKE_RGBA(rgb, 0, 192, 192, 255), /* cyan */ + MAKE_RGBA(rgb, 0, 192, 0, 255), /* green */ + MAKE_RGBA(rgb, 192, 0, 192, 255), /* magenta */ + MAKE_RGBA(rgb, 192, 0, 0, 255), /* red */ + MAKE_RGBA(rgb, 0, 0, 192, 255), /* blue */ + }; + const uint32_t colors_middle[] = { + MAKE_RGBA(rgb, 0, 0, 192, 127), /* blue */ + MAKE_RGBA(rgb, 19, 19, 19, 127), /* black */ + MAKE_RGBA(rgb, 192, 0, 192, 127), /* magenta */ + MAKE_RGBA(rgb, 19, 19, 19, 127), /* black */ + MAKE_RGBA(rgb, 0, 192, 192, 127), /* cyan */ + MAKE_RGBA(rgb, 19, 19, 19, 127), /* black */ + MAKE_RGBA(rgb, 192, 192, 192, 127), /* grey */ + }; + const uint32_t colors_bottom[] = { + MAKE_RGBA(rgb, 0, 33, 76, 255), /* in-phase */ + MAKE_RGBA(rgb, 255, 255, 255, 255), /* super white */ + MAKE_RGBA(rgb, 50, 0, 106, 255), /* quadrature */ + MAKE_RGBA(rgb, 19, 19, 19, 255), /* black */ + MAKE_RGBA(rgb, 9, 9, 9, 255), /* 3.5% */ + MAKE_RGBA(rgb, 19, 19, 19, 255), /* 7.5% */ + MAKE_RGBA(rgb, 29, 29, 29, 255), /* 11.5% */ + MAKE_RGBA(rgb, 19, 19, 19, 255), /* black */ + }; + unsigned int x; + unsigned int y; + + for (y = 0; y < height * 6 / 9; ++y) { + for (x = 0; x < width; ++x) + ((uint32_t *)mem)[x] = cpu_to_le32(colors_top[x * 7 / width]); + mem += stride; + } + + for (; y < height * 7 / 9; ++y) { + for (x = 0; x < width; ++x) + ((uint32_t *)mem)[x] = cpu_to_le32(colors_middle[x * 7 / width]); + mem += stride; + } + + for (; y < height; ++y) { + for (x = 0; x < width * 5 / 7; ++x) + ((uint32_t *)mem)[x] = + cpu_to_le32(colors_bottom[x * 4 / (width * 5 / 7)]); + for (; x < width * 6 / 7; ++x) + ((uint32_t *)mem)[x] = + cpu_to_le32(colors_bottom[(x - width * 5 / 7) * 3 + / (width / 7) + 4]); + for (; x < width; ++x) + ((uint32_t *)mem)[x] = cpu_to_le32(colors_bottom[7]); + mem += stride; + } +} + +static void fill_smpte_rgb16fp(const struct util_rgb_info *rgb, void *mem, + unsigned int width, unsigned int height, + unsigned int stride) +{ + const uint64_t colors_top[] = { + MAKE_RGBA8FP16(rgb, 192, 192, 192, 255),/* grey */ + MAKE_RGBA8FP16(rgb, 192, 192, 0, 255), /* yellow */ + MAKE_RGBA8FP16(rgb, 0, 192, 192, 255), /* cyan */ + MAKE_RGBA8FP16(rgb, 0, 192, 0, 255), /* green */ + MAKE_RGBA8FP16(rgb, 192, 0, 192, 255), /* magenta */ + MAKE_RGBA8FP16(rgb, 192, 0, 0, 255), /* red */ + MAKE_RGBA8FP16(rgb, 0, 0, 192, 255), /* blue */ + }; + const uint64_t colors_middle[] = { + MAKE_RGBA8FP16(rgb, 0, 0, 192, 127), /* blue */ + MAKE_RGBA8FP16(rgb, 19, 19, 19, 127), /* black */ + MAKE_RGBA8FP16(rgb, 192, 0, 192, 127), /* magenta */ + MAKE_RGBA8FP16(rgb, 19, 19, 19, 127), /* black */ + MAKE_RGBA8FP16(rgb, 0, 192, 192, 127), /* cyan */ + MAKE_RGBA8FP16(rgb, 19, 19, 19, 127), /* black */ + MAKE_RGBA8FP16(rgb, 192, 192, 192, 127),/* grey */ + }; + const uint64_t colors_bottom[] = { + MAKE_RGBA8FP16(rgb, 0, 33, 76, 255), /* in-phase */ + MAKE_RGBA8FP16(rgb, 255, 255, 255, 255),/* super white */ + MAKE_RGBA8FP16(rgb, 50, 0, 106, 255), /* quadrature */ + MAKE_RGBA8FP16(rgb, 19, 19, 19, 255), /* black */ + MAKE_RGBA8FP16(rgb, 9, 9, 9, 255), /* 3.5% */ + MAKE_RGBA8FP16(rgb, 19, 19, 19, 255), /* 7.5% */ + MAKE_RGBA8FP16(rgb, 29, 29, 29, 255), /* 11.5% */ + MAKE_RGBA8FP16(rgb, 19, 19, 19, 255), /* black */ + }; + unsigned int x; + unsigned int y; + + for (y = 0; y < height * 6 / 9; ++y) { + for (x = 0; x < width; ++x) + ((uint64_t *)mem)[x] = colors_top[x * 7 / width]; + mem += stride; + } + + for (; y < height * 7 / 9; ++y) { + for (x = 0; x < width; ++x) + ((uint64_t *)mem)[x] = colors_middle[x * 7 / width]; + mem += stride; + } + + for (; y < height; ++y) { + for (x = 0; x < width * 5 / 7; ++x) + ((uint64_t *)mem)[x] = + colors_bottom[x * 4 / (width * 5 / 7)]; + for (; x < width * 6 / 7; ++x) + ((uint64_t *)mem)[x] = + colors_bottom[(x - width * 5 / 7) * 3 + / (width / 7) + 4]; + for (; x < width; ++x) + ((uint64_t *)mem)[x] = colors_bottom[7]; + mem += stride; + } +} + +enum smpte_colors { + SMPTE_COLOR_GREY, + SMPTE_COLOR_YELLOW, + SMPTE_COLOR_CYAN, + SMPTE_COLOR_GREEN, + SMPTE_COLOR_MAGENTA, + SMPTE_COLOR_RED, + SMPTE_COLOR_BLUE, + SMPTE_COLOR_BLACK, + SMPTE_COLOR_IN_PHASE, + SMPTE_COLOR_SUPER_WHITE, + SMPTE_COLOR_QUADRATURE, + SMPTE_COLOR_3PC5, + SMPTE_COLOR_11PC5, +}; + +static unsigned int smpte_top[7] = { + SMPTE_COLOR_GREY, + SMPTE_COLOR_YELLOW, + SMPTE_COLOR_CYAN, + SMPTE_COLOR_GREEN, + SMPTE_COLOR_MAGENTA, + SMPTE_COLOR_RED, + SMPTE_COLOR_BLUE, +}; + +static unsigned int smpte_middle[7] = { + SMPTE_COLOR_BLUE, + SMPTE_COLOR_BLACK, + SMPTE_COLOR_MAGENTA, + SMPTE_COLOR_BLACK, + SMPTE_COLOR_CYAN, + SMPTE_COLOR_BLACK, + SMPTE_COLOR_GREY, +}; + +static unsigned int smpte_bottom[8] = { + SMPTE_COLOR_IN_PHASE, + SMPTE_COLOR_SUPER_WHITE, + SMPTE_COLOR_QUADRATURE, + SMPTE_COLOR_BLACK, + SMPTE_COLOR_3PC5, + SMPTE_COLOR_BLACK, + SMPTE_COLOR_11PC5, + SMPTE_COLOR_BLACK, +}; + +#define EXPAND_COLOR(r, g, b) { (r) * 0x101, (g) * 0x101, (b) * 0x101 } + +static const struct drm_color_lut bw_color_lut[] = { + EXPAND_COLOR( 0, 0, 0), /* black */ + EXPAND_COLOR(255, 255, 255), /* white */ +}; + +static const struct drm_color_lut pentile_color_lut[] = { + /* PenTile RG-GB */ + EXPAND_COLOR( 0, 0, 0), /* black */ + EXPAND_COLOR(255, 0, 0), /* red */ + EXPAND_COLOR( 0, 207, 0), /* green */ + EXPAND_COLOR( 0, 0, 255), /* blue */ +}; + +static const struct drm_color_lut smpte_color_lut[] = { + [SMPTE_COLOR_GREY] = EXPAND_COLOR(192, 192, 192), + [SMPTE_COLOR_YELLOW] = EXPAND_COLOR(192, 192, 0), + [SMPTE_COLOR_CYAN] = EXPAND_COLOR( 0, 192, 192), + [SMPTE_COLOR_GREEN] = EXPAND_COLOR( 0, 192, 0), + [SMPTE_COLOR_MAGENTA] = EXPAND_COLOR(192, 0, 192), + [SMPTE_COLOR_RED] = EXPAND_COLOR(192, 0, 0), + [SMPTE_COLOR_BLUE] = EXPAND_COLOR( 0, 0, 192), + [SMPTE_COLOR_BLACK] = EXPAND_COLOR( 19, 19, 19), + [SMPTE_COLOR_IN_PHASE] = EXPAND_COLOR( 0, 33, 76), + [SMPTE_COLOR_SUPER_WHITE] = EXPAND_COLOR(255, 255, 255), + [SMPTE_COLOR_QUADRATURE] = EXPAND_COLOR( 50, 0, 106), + [SMPTE_COLOR_3PC5] = EXPAND_COLOR( 9, 9, 9), + [SMPTE_COLOR_11PC5] = EXPAND_COLOR( 29, 29, 29), +}; + +#undef EXPAND_COLOR + +/* + * Floyd-Steinberg dithering + */ + +struct fsd { + unsigned int width; + unsigned int x; + unsigned int i; + int red; + int green; + int blue; + int error[]; +}; + +static struct fsd *fsd_alloc(unsigned int width) +{ + unsigned int n = 3 * (width + 1); + struct fsd *fsd = malloc(sizeof(*fsd) + n * sizeof(fsd->error[0])); + + fsd->width = width; + fsd->x = 0; + fsd->i = 0; + memset(fsd->error, 0, n * sizeof(fsd->error[0])); + + return fsd; +} + +static inline int clamp(int val, int min, int max) +{ + if (val < min) + return min; + if (val > max) + return max; + return val; +} + +static void fsd_dither(struct fsd *fsd, struct drm_color_lut *color) +{ + unsigned int i = fsd->i; + + fsd->red = (int)color->red + (fsd->error[3 * i] + 8) / 16; + fsd->green = (int)color->green + (fsd->error[3 * i + 1] + 8) / 16; + fsd->blue = (int)color->blue + (fsd->error[3 * i + 2] + 8) / 16; + + color->red = clamp(fsd->red, 0, 65535); + color->green = clamp(fsd->green, 0, 65535); + color->blue = clamp(fsd->blue, 0, 65535); +} + +static void fsd_update(struct fsd *fsd, const struct drm_color_lut *actual) +{ + int error_red = fsd->red - (int)actual->red; + int error_green = fsd->green - (int)actual->green; + int error_blue = fsd->blue - (int)actual->blue; + unsigned int width = fsd->width; + unsigned int i = fsd->i, j; + unsigned int n = width + 1; + + /* Distribute errors over neighboring pixels */ + if (fsd->x == width - 1) { + /* Last pixel on this scanline */ + /* South East: initialize to zero */ + fsd->error[3 * i] = 0; + fsd->error[3 * i + 1] = 0; + fsd->error[3 * i + 2] = 0; + } else { + /* East: accumulate error */ + j = (i + 1) % n; + fsd->error[3 * j] += 7 * error_red; + fsd->error[3 * j + 1] += 7 * error_green; + fsd->error[3 * j + 2] += 7 * error_blue; + + /* South East: initial error */ + fsd->error[3 * i] = error_red; + fsd->error[3 * i + 1] = error_green; + fsd->error[3 * i + 2] = error_blue; + } + /* South West: accumulate error */ + j = (i + width - 1) % n; + fsd->error[3 * j] += 3 * error_red; + fsd->error[3 * j + 1] += 3 * error_green; + fsd->error[3 * j + 2] += 3 * error_blue; + + /* South: accumulate error */ + j = (i + width) % n; + fsd->error[3 * j] += 5 * error_red; + fsd->error[3 * j + 1] += 5 * error_green; + fsd->error[3 * j + 2] += 5 * error_blue; + + fsd->x = (fsd->x + 1) % width; + fsd->i = (fsd->i + 1) % n; +} + +static void write_pixel_1(uint8_t *mem, unsigned int x, unsigned int pixel) +{ + unsigned int shift = 7 - (x & 7); + unsigned int mask = 1U << shift; + + mem[x / 8] = (mem[x / 8] & ~mask) | ((pixel << shift) & mask); +} + +static void write_color_1(struct fsd *fsd, uint8_t *mem, unsigned int x, + unsigned int index) +{ + struct drm_color_lut color = smpte_color_lut[index]; + unsigned int pixel; + + fsd_dither(fsd, &color); + + /* ITU BT.601: Y = 0.299 R + 0.587 G + 0.114 B */ + if (3 * color.red + 6 * color.green + color.blue >= 10 * 32768) { + pixel = 1; + color.red = color.green = color.blue = 65535; + } else { + pixel = 0; + color.red = color.green = color.blue = 0; + } + + fsd_update(fsd, &color); + + write_pixel_1(mem, x, pixel); +} + +static void fill_smpte_c1(void *mem, unsigned int width, unsigned int height, + unsigned int stride) +{ + struct fsd *fsd = fsd_alloc(width); + unsigned int x; + unsigned int y; + + for (y = 0; y < height * 6 / 9; ++y) { + for (x = 0; x < width; ++x) + write_color_1(fsd, mem, x, smpte_top[x * 7 / width]); + mem += stride; + } + + for (; y < height * 7 / 9; ++y) { + for (x = 0; x < width; ++x) + write_color_1(fsd, mem, x, smpte_middle[x * 7 / width]); + mem += stride; + } + + for (; y < height; ++y) { + for (x = 0; x < width * 5 / 7; ++x) + write_color_1(fsd, mem, x, + smpte_bottom[x * 4 / (width * 5 / 7)]); + for (; x < width * 6 / 7; ++x) + write_color_1(fsd, mem, x, + smpte_bottom[(x - width * 5 / 7) * 3 / + (width / 7) + 4]); + for (; x < width; ++x) + write_color_1(fsd, mem, x, smpte_bottom[7]); + mem += stride; + } + + free(fsd); +} + +static void write_pixel_2(uint8_t *mem, unsigned int x, unsigned int pixel) +{ + unsigned int shift = 6 - 2 * (x & 3); + unsigned int mask = 3U << shift; + + mem[x / 4] = (mem[x / 4] & ~mask) | ((pixel << shift) & mask); +} + +static void write_color_2(struct fsd *fsd, uint8_t *mem, unsigned int stride, + unsigned int x, unsigned int index) +{ + struct drm_color_lut color = smpte_color_lut[index]; + unsigned int r, g, b; + + fsd_dither(fsd, &color); + + if (color.red >= 32768) { + r = 1; + color.red = 65535; + } else { + r = 0; + color.red = 0; + } + if (color.green >= 32768) { + g = 2; + color.green = 65535; + } else { + g = 0; + color.green = 0; + } + if (color.blue >= 32768) { + b = 3; + color.blue = 65535; + } else { + b = 0; + color.blue = 0; + } + + fsd_update(fsd, &color); + + /* Use PenTile RG-GB */ + write_pixel_2(mem, 2 * x, r); + write_pixel_2(mem, 2 * x + 1, g); + write_pixel_2(mem + stride, 2 * x, g); + write_pixel_2(mem + stride, 2 * x + 1, b); +} + +static void fill_smpte_c2(void *mem, unsigned int width, unsigned int height, + unsigned int stride) +{ + struct fsd *fsd = fsd_alloc(width); + unsigned int x; + unsigned int y; + + /* Half resolution for PenTile RG-GB */ + width /= 2; + height /= 2; + + for (y = 0; y < height * 6 / 9; ++y) { + for (x = 0; x < width; ++x) + write_color_2(fsd, mem, stride, x, smpte_top[x * 7 / width]); + mem += 2 * stride; + } + + for (; y < height * 7 / 9; ++y) { + for (x = 0; x < width; ++x) + write_color_2(fsd, mem, stride, x, smpte_middle[x * 7 / width]); + mem += 2 * stride; + } + + for (; y < height; ++y) { + for (x = 0; x < width * 5 / 7; ++x) + write_color_2(fsd, mem, stride, x, + smpte_bottom[x * 4 / (width * 5 / 7)]); + for (; x < width * 6 / 7; ++x) + write_color_2(fsd, mem, stride, x, + smpte_bottom[(x - width * 5 / 7) * 3 / + (width / 7) + 4]); + for (; x < width; ++x) + write_color_2(fsd, mem, stride, x, smpte_bottom[7]); + mem += 2 * stride; + } + + free(fsd); +} + +static void write_pixel_4(uint8_t *mem, unsigned int x, unsigned int pixel) +{ + if (x & 1) + mem[x / 2] = (mem[x / 2] & 0xf0) | (pixel & 0x0f); + else + mem[x / 2] = (mem[x / 2] & 0x0f) | (pixel << 4); +} + +static void fill_smpte_c4(void *mem, unsigned int width, unsigned int height, + unsigned int stride) +{ + unsigned int x; + unsigned int y; + + for (y = 0; y < height * 6 / 9; ++y) { + for (x = 0; x < width; ++x) + write_pixel_4(mem, x, smpte_top[x * 7 / width]); + mem += stride; + } + + for (; y < height * 7 / 9; ++y) { + for (x = 0; x < width; ++x) + write_pixel_4(mem, x, smpte_middle[x * 7 / width]); + mem += stride; + } + + for (; y < height; ++y) { + for (x = 0; x < width * 5 / 7; ++x) + write_pixel_4(mem, x, + smpte_bottom[x * 4 / (width * 5 / 7)]); + for (; x < width * 6 / 7; ++x) + write_pixel_4(mem, x, + smpte_bottom[(x - width * 5 / 7) * 3 / + (width / 7) + 4]); + for (; x < width; ++x) + write_pixel_4(mem, x, smpte_bottom[7]); + mem += stride; + } +} + +static void fill_smpte_c8(void *mem, unsigned int width, unsigned int height, + unsigned int stride) +{ + unsigned int x; + unsigned int y; + + for (y = 0; y < height * 6 / 9; ++y) { + for (x = 0; x < width; ++x) + ((uint8_t *)mem)[x] = smpte_top[x * 7 / width]; + mem += stride; + } + + for (; y < height * 7 / 9; ++y) { + for (x = 0; x < width; ++x) + ((uint8_t *)mem)[x] = smpte_middle[x * 7 / width]; + mem += stride; + } + + for (; y < height; ++y) { + for (x = 0; x < width * 5 / 7; ++x) + ((uint8_t *)mem)[x] = + smpte_bottom[x * 4 / (width * 5 / 7)]; + for (; x < width * 6 / 7; ++x) + ((uint8_t *)mem)[x] = + smpte_bottom[(x - width * 5 / 7) * 3 + / (width / 7) + 4]; + for (; x < width; ++x) + ((uint8_t *)mem)[x] = smpte_bottom[7]; + mem += stride; + } +} + +void util_smpte_fill_lut(unsigned int ncolors, struct drm_color_lut *lut) +{ + if (ncolors < ARRAY_SIZE(bw_color_lut)) { + printf("Error: lut too small: %u < %zu\n", ncolors, + ARRAY_SIZE(bw_color_lut)); + return; + } + memset(lut, 0, ncolors * sizeof(struct drm_color_lut)); + + if (ncolors < ARRAY_SIZE(pentile_color_lut)) + memcpy(lut, bw_color_lut, sizeof(bw_color_lut)); + else if (ncolors < ARRAY_SIZE(smpte_color_lut)) + memcpy(lut, pentile_color_lut, sizeof(pentile_color_lut)); + else + memcpy(lut, smpte_color_lut, sizeof(smpte_color_lut)); +} + +static void fill_smpte(const struct util_format_info *info, void *planes[3], + unsigned int width, unsigned int height, + unsigned int stride) +{ + unsigned char *u, *v; + + switch (info->format) { + case DRM_FORMAT_C1: + return fill_smpte_c1(planes[0], width, height, stride); + case DRM_FORMAT_C2: + return fill_smpte_c2(planes[0], width, height, stride); + case DRM_FORMAT_C4: + return fill_smpte_c4(planes[0], width, height, stride); + case DRM_FORMAT_C8: + return fill_smpte_c8(planes[0], width, height, stride); + case DRM_FORMAT_UYVY: + case DRM_FORMAT_VYUY: + case DRM_FORMAT_YUYV: + case DRM_FORMAT_YVYU: + return fill_smpte_yuv_packed(&info->yuv, planes[0], width, + height, stride); + + case DRM_FORMAT_NV12: + case DRM_FORMAT_NV21: + case DRM_FORMAT_NV16: + case DRM_FORMAT_NV61: + case DRM_FORMAT_NV24: + case DRM_FORMAT_NV42: + u = info->yuv.order & YUV_YCbCr ? planes[1] : planes[1] + 1; + v = info->yuv.order & YUV_YCrCb ? planes[1] : planes[1] + 1; + return fill_smpte_yuv_planar(&info->yuv, planes[0], u, v, + width, height, stride); + + case DRM_FORMAT_NV15: + case DRM_FORMAT_NV20: + case DRM_FORMAT_NV30: + return fill_smpte_yuv_planar_10bpp(&info->yuv, planes[0], + planes[1], width, height, + stride); + + case DRM_FORMAT_YUV420: + return fill_smpte_yuv_planar(&info->yuv, planes[0], planes[1], + planes[2], width, height, stride); + + case DRM_FORMAT_YVU420: + return fill_smpte_yuv_planar(&info->yuv, planes[0], planes[2], + planes[1], width, height, stride); + + case DRM_FORMAT_ARGB4444: + case DRM_FORMAT_XRGB4444: + case DRM_FORMAT_ABGR4444: + case DRM_FORMAT_XBGR4444: + case DRM_FORMAT_RGBA4444: + case DRM_FORMAT_RGBX4444: + case DRM_FORMAT_BGRA4444: + case DRM_FORMAT_BGRX4444: + case DRM_FORMAT_RGB565: + case DRM_FORMAT_RGB565 | DRM_FORMAT_BIG_ENDIAN: + case DRM_FORMAT_BGR565: + case DRM_FORMAT_ARGB1555: + case DRM_FORMAT_XRGB1555: + case DRM_FORMAT_XRGB1555 | DRM_FORMAT_BIG_ENDIAN: + case DRM_FORMAT_ABGR1555: + case DRM_FORMAT_XBGR1555: + case DRM_FORMAT_RGBA5551: + case DRM_FORMAT_RGBX5551: + case DRM_FORMAT_BGRA5551: + case DRM_FORMAT_BGRX5551: + return fill_smpte_rgb16(&info->rgb, planes[0], + width, height, stride, + info->format & DRM_FORMAT_BIG_ENDIAN); + + case DRM_FORMAT_BGR888: + case DRM_FORMAT_RGB888: + return fill_smpte_rgb24(&info->rgb, planes[0], + width, height, stride); + case DRM_FORMAT_ARGB8888: + case DRM_FORMAT_XRGB8888: + case DRM_FORMAT_ABGR8888: + case DRM_FORMAT_XBGR8888: + case DRM_FORMAT_RGBA8888: + case DRM_FORMAT_RGBX8888: + case DRM_FORMAT_BGRA8888: + case DRM_FORMAT_BGRX8888: + case DRM_FORMAT_ARGB2101010: + case DRM_FORMAT_XRGB2101010: + case DRM_FORMAT_ABGR2101010: + case DRM_FORMAT_XBGR2101010: + case DRM_FORMAT_RGBA1010102: + case DRM_FORMAT_RGBX1010102: + case DRM_FORMAT_BGRA1010102: + case DRM_FORMAT_BGRX1010102: + return fill_smpte_rgb32(&info->rgb, planes[0], + width, height, stride); + + case DRM_FORMAT_XRGB16161616F: + case DRM_FORMAT_XBGR16161616F: + case DRM_FORMAT_ARGB16161616F: + case DRM_FORMAT_ABGR16161616F: + return fill_smpte_rgb16fp(&info->rgb, planes[0], + width, height, stride); + } +} + +#if HAVE_CAIRO +static void byteswap_buffer16(void *mem, unsigned int width, unsigned int height, + unsigned int stride) +{ + unsigned int x, y; + + for (y = 0; y < height; ++y) { + for (x = 0; x < width; ++x) + ((uint16_t *)mem)[x] = swap16(((uint16_t *)mem)[x]); + mem += stride; + } +} + +static void byteswap_buffer32(void *mem, unsigned int width, unsigned int height, + unsigned int stride) +{ + unsigned int x, y; + + for (y = 0; y < height; ++y) { + for (x = 0; x < width; ++x) + ((uint32_t *)mem)[x] = swap32(((uint32_t *)mem)[x]); + mem += stride; + } +} +#endif + +static void make_pwetty(void *data, unsigned int width, unsigned int height, + unsigned int stride, uint32_t format) +{ +#if HAVE_CAIRO + cairo_surface_t *surface; + cairo_t *cr; + cairo_format_t cairo_format; + bool swap16 = false; + bool swap32 = false; + + /* we can ignore the order of R,G,B channels */ + switch (format) { + case DRM_FORMAT_XRGB8888: + case DRM_FORMAT_ARGB8888: + case DRM_FORMAT_XBGR8888: + case DRM_FORMAT_ABGR8888: + cairo_format = CAIRO_FORMAT_ARGB32; + break; + case DRM_FORMAT_RGB565: + case DRM_FORMAT_RGB565 | DRM_FORMAT_BIG_ENDIAN: + case DRM_FORMAT_BGR565: + cairo_format = CAIRO_FORMAT_RGB16_565; + swap16 = fb_foreign_endian(format); + break; +#if CAIRO_VERSION_MAJOR > 1 || (CAIRO_VERSION_MAJOR == 1 && CAIRO_VERSION_MINOR >= 12) + case DRM_FORMAT_ARGB2101010: + case DRM_FORMAT_XRGB2101010: + case DRM_FORMAT_ABGR2101010: + case DRM_FORMAT_XBGR2101010: + cairo_format = CAIRO_FORMAT_RGB30; + swap32 = fb_foreign_endian(format); + break; +#endif + default: + return; + } + + /* Cairo uses native byte order, so we may have to byteswap before... */ + if (swap16) + byteswap_buffer16(data, width, height, stride); + if (swap32) + byteswap_buffer32(data, width, height, stride); + + surface = cairo_image_surface_create_for_data(data, + cairo_format, + width, height, + stride); + cr = cairo_create(surface); + cairo_surface_destroy(surface); + + cairo_set_line_cap(cr, CAIRO_LINE_CAP_SQUARE); + for (unsigned x = 0; x < width; x += 250) + for (unsigned y = 0; y < height; y += 250) { + char buf[64]; + + cairo_move_to(cr, x, y - 20); + cairo_line_to(cr, x, y + 20); + cairo_move_to(cr, x - 20, y); + cairo_line_to(cr, x + 20, y); + cairo_new_sub_path(cr); + cairo_arc(cr, x, y, 10, 0, M_PI * 2); + cairo_set_line_width(cr, 4); + cairo_set_source_rgb(cr, 0, 0, 0); + cairo_stroke_preserve(cr); + cairo_set_source_rgb(cr, 1, 1, 1); + cairo_set_line_width(cr, 2); + cairo_stroke(cr); + + snprintf(buf, sizeof buf, "%d, %d", x, y); + cairo_move_to(cr, x + 20, y + 20); + cairo_text_path(cr, buf); + cairo_set_source_rgb(cr, 0, 0, 0); + cairo_stroke_preserve(cr); + cairo_set_source_rgb(cr, 1, 1, 1); + cairo_fill(cr); + } + + cairo_destroy(cr); + + /* ... and after */ + if (swap16) + byteswap_buffer16(data, width, height, stride); + if (swap32) + byteswap_buffer32(data, width, height, stride); +#endif +} + +static struct color_yuv make_tiles_yuv_color(unsigned int x, unsigned int y, + unsigned int width) +{ + div_t d = div(x+y, width); + uint32_t rgb32 = 0x00130502 * (d.quot >> 6) + + 0x000a1120 * (d.rem >> 6); + struct color_yuv color = + MAKE_YUV_601((rgb32 >> 16) & 0xff, (rgb32 >> 8) & 0xff, + rgb32 & 0xff); + return color; +} + +static void fill_tiles_yuv_planar(const struct util_format_info *info, + unsigned char *y_mem, unsigned char *u_mem, + unsigned char *v_mem, unsigned int width, + unsigned int height, unsigned int stride) +{ + const struct util_yuv_info *yuv = &info->yuv; + unsigned int cs = yuv->chroma_stride; + unsigned int xsub = yuv->xsub; + unsigned int ysub = yuv->ysub; + unsigned int x; + unsigned int y; + + for (y = 0; y < height; ++y) { + for (x = 0; x < width; ++x) { + struct color_yuv color = + make_tiles_yuv_color(x, y, width); + + y_mem[x] = color.y; + u_mem[x/xsub*cs] = color.u; + v_mem[x/xsub*cs] = color.v; + } + + y_mem += stride; + if ((y + 1) % ysub == 0) { + u_mem += stride * cs / xsub; + v_mem += stride * cs / xsub; + } + } +} + +static void fill_tiles_yuv_planar_10bpp(const struct util_format_info *info, + unsigned char *y_mem, + unsigned char *uv_mem, + unsigned int width, + unsigned int height, + unsigned int stride) +{ + const struct util_yuv_info *yuv = &info->yuv; + unsigned int cs = yuv->chroma_stride; + unsigned int xsub = yuv->xsub; + unsigned int ysub = yuv->ysub; + unsigned int xstep = cs * xsub; + unsigned int x; + unsigned int y; + + for (y = 0; y < height; ++y) { + for (x = 0; x < width; x += 4) { + struct color_yuv a = make_tiles_yuv_color(x+0, y, width); + struct color_yuv b = make_tiles_yuv_color(x+1, y, width); + struct color_yuv c = make_tiles_yuv_color(x+2, y, width); + struct color_yuv d = make_tiles_yuv_color(x+3, y, width); + + write_pixels_10bpp(&y_mem[(x * 5) / 4], + a.y << 2, b.y << 2, c.y << 2, d.y << 2); + } + y_mem += stride; + } + for (y = 0; y < height; y += ysub) { + for (x = 0; x < width; x += xstep) { + struct color_yuv a = make_tiles_yuv_color(x+0, y, width); + struct color_yuv b = make_tiles_yuv_color(x+xsub, y, width); + + write_pixels_10bpp(&uv_mem[(x * 5) / xstep], + a.u << 2, a.v << 2, b.u << 2, b.v << 2); + } + uv_mem += stride * cs / xsub; + } +} + +static void fill_tiles_yuv_packed(const struct util_format_info *info, + void *mem, unsigned int width, + unsigned int height, unsigned int stride) +{ + const struct util_yuv_info *yuv = &info->yuv; + unsigned char *y_mem = (yuv->order & YUV_YC) ? mem : mem + 1; + unsigned char *c_mem = (yuv->order & YUV_CY) ? mem : mem + 1; + unsigned int u = (yuv->order & YUV_YCrCb) ? 2 : 0; + unsigned int v = (yuv->order & YUV_YCbCr) ? 2 : 0; + unsigned int x; + unsigned int y; + + for (y = 0; y < height; ++y) { + for (x = 0; x < width; x += 2) { + struct color_yuv color = + make_tiles_yuv_color(x, y, width); + + y_mem[2*x] = color.y; + c_mem[2*x+u] = color.u; + y_mem[2*x+2] = color.y; + c_mem[2*x+v] = color.v; + } + + y_mem += stride; + c_mem += stride; + } +} + +static void fill_tiles_rgb16(const struct util_format_info *info, void *mem, + unsigned int width, unsigned int height, + unsigned int stride, bool fb_be) +{ + const struct util_rgb_info *rgb = &info->rgb; + void *mem_base = mem; + unsigned int x, y; + + for (y = 0; y < height; ++y) { + for (x = 0; x < width; ++x) { + div_t d = div(x+y, width); + uint32_t rgb32 = 0x00130502 * (d.quot >> 6) + + 0x000a1120 * (d.rem >> 6); + uint16_t color = + MAKE_RGBA(rgb, (rgb32 >> 16) & 0xff, + (rgb32 >> 8) & 0xff, rgb32 & 0xff, + 255); + + ((uint16_t *)mem)[x] = cpu_to_fb16(color); + } + mem += stride; + } + + make_pwetty(mem_base, width, height, stride, info->format); +} + +static void fill_tiles_rgb24(const struct util_format_info *info, void *mem, + unsigned int width, unsigned int height, + unsigned int stride) +{ + const struct util_rgb_info *rgb = &info->rgb; + unsigned int x, y; + + for (y = 0; y < height; ++y) { + for (x = 0; x < width; ++x) { + div_t d = div(x+y, width); + uint32_t rgb32 = 0x00130502 * (d.quot >> 6) + + 0x000a1120 * (d.rem >> 6); + struct color_rgb24 color = + MAKE_RGB24(rgb, (rgb32 >> 16) & 0xff, + (rgb32 >> 8) & 0xff, rgb32 & 0xff); + + ((struct color_rgb24 *)mem)[x] = color; + } + mem += stride; + } +} + +static void fill_tiles_rgb32(const struct util_format_info *info, void *mem, + unsigned int width, unsigned int height, + unsigned int stride) +{ + const struct util_rgb_info *rgb = &info->rgb; + void *mem_base = mem; + unsigned int x, y; + + for (y = 0; y < height; ++y) { + for (x = 0; x < width; ++x) { + div_t d = div(x+y, width); + uint32_t rgb32 = 0x00130502 * (d.quot >> 6) + + 0x000a1120 * (d.rem >> 6); + uint32_t alpha = ((y < height/2) && (x < width/2)) ? 127 : 255; + uint32_t color = + MAKE_RGBA(rgb, (rgb32 >> 16) & 0xff, + (rgb32 >> 8) & 0xff, rgb32 & 0xff, + alpha); + + ((uint32_t *)mem)[x] = cpu_to_le32(color); + } + mem += stride; + } + + make_pwetty(mem_base, width, height, stride, info->format); +} + +static void fill_tiles_rgb16fp(const struct util_format_info *info, void *mem, + unsigned int width, unsigned int height, + unsigned int stride) +{ + const struct util_rgb_info *rgb = &info->rgb; + unsigned int x, y; + + /* TODO: Give this actual fp16 precision */ + for (y = 0; y < height; ++y) { + for (x = 0; x < width; ++x) { + div_t d = div(x+y, width); + uint32_t rgb32 = 0x00130502 * (d.quot >> 6) + + 0x000a1120 * (d.rem >> 6); + uint32_t alpha = ((y < height/2) && (x < width/2)) ? 127 : 255; + uint64_t color = + MAKE_RGBA8FP16(rgb, (rgb32 >> 16) & 0xff, + (rgb32 >> 8) & 0xff, rgb32 & 0xff, + alpha); + + ((uint64_t *)mem)[x] = color; + } + mem += stride; + } +} + +static void fill_tiles(const struct util_format_info *info, void *planes[3], + unsigned int width, unsigned int height, + unsigned int stride) +{ + unsigned char *u, *v; + + switch (info->format) { + case DRM_FORMAT_UYVY: + case DRM_FORMAT_VYUY: + case DRM_FORMAT_YUYV: + case DRM_FORMAT_YVYU: + return fill_tiles_yuv_packed(info, planes[0], + width, height, stride); + + case DRM_FORMAT_NV12: + case DRM_FORMAT_NV21: + case DRM_FORMAT_NV16: + case DRM_FORMAT_NV61: + case DRM_FORMAT_NV24: + case DRM_FORMAT_NV42: + u = info->yuv.order & YUV_YCbCr ? planes[1] : planes[1] + 1; + v = info->yuv.order & YUV_YCrCb ? planes[1] : planes[1] + 1; + return fill_tiles_yuv_planar(info, planes[0], u, v, + width, height, stride); + + case DRM_FORMAT_NV15: + case DRM_FORMAT_NV20: + case DRM_FORMAT_NV30: + return fill_tiles_yuv_planar_10bpp(info, planes[0], planes[1], + width, height, stride); + + case DRM_FORMAT_YUV420: + return fill_tiles_yuv_planar(info, planes[0], planes[1], + planes[2], width, height, stride); + + case DRM_FORMAT_YVU420: + return fill_tiles_yuv_planar(info, planes[0], planes[2], + planes[1], width, height, stride); + + case DRM_FORMAT_ARGB4444: + case DRM_FORMAT_XRGB4444: + case DRM_FORMAT_ABGR4444: + case DRM_FORMAT_XBGR4444: + case DRM_FORMAT_RGBA4444: + case DRM_FORMAT_RGBX4444: + case DRM_FORMAT_BGRA4444: + case DRM_FORMAT_BGRX4444: + case DRM_FORMAT_RGB565: + case DRM_FORMAT_RGB565 | DRM_FORMAT_BIG_ENDIAN: + case DRM_FORMAT_BGR565: + case DRM_FORMAT_ARGB1555: + case DRM_FORMAT_XRGB1555: + case DRM_FORMAT_XRGB1555 | DRM_FORMAT_BIG_ENDIAN: + case DRM_FORMAT_ABGR1555: + case DRM_FORMAT_XBGR1555: + case DRM_FORMAT_RGBA5551: + case DRM_FORMAT_RGBX5551: + case DRM_FORMAT_BGRA5551: + case DRM_FORMAT_BGRX5551: + return fill_tiles_rgb16(info, planes[0], + width, height, stride, + info->format & DRM_FORMAT_BIG_ENDIAN); + + case DRM_FORMAT_BGR888: + case DRM_FORMAT_RGB888: + return fill_tiles_rgb24(info, planes[0], + width, height, stride); + case DRM_FORMAT_ARGB8888: + case DRM_FORMAT_XRGB8888: + case DRM_FORMAT_ABGR8888: + case DRM_FORMAT_XBGR8888: + case DRM_FORMAT_RGBA8888: + case DRM_FORMAT_RGBX8888: + case DRM_FORMAT_BGRA8888: + case DRM_FORMAT_BGRX8888: + case DRM_FORMAT_ARGB2101010: + case DRM_FORMAT_XRGB2101010: + case DRM_FORMAT_ABGR2101010: + case DRM_FORMAT_XBGR2101010: + case DRM_FORMAT_RGBA1010102: + case DRM_FORMAT_RGBX1010102: + case DRM_FORMAT_BGRA1010102: + case DRM_FORMAT_BGRX1010102: + return fill_tiles_rgb32(info, planes[0], + width, height, stride); + + case DRM_FORMAT_XRGB16161616F: + case DRM_FORMAT_XBGR16161616F: + case DRM_FORMAT_ARGB16161616F: + case DRM_FORMAT_ABGR16161616F: + return fill_tiles_rgb16fp(info, planes[0], + width, height, stride); + } +} + +static void fill_plain(const struct util_format_info *info, void *planes[3], + unsigned int height, + unsigned int stride) +{ + switch (info->format) { + case DRM_FORMAT_XRGB16161616F: + case DRM_FORMAT_XBGR16161616F: + case DRM_FORMAT_ARGB16161616F: + case DRM_FORMAT_ABGR16161616F: + /* 0x3838 = 0.5273 */ + memset(planes[0], 0x38, stride * height); + break; + default: + memset(planes[0], 0x77, stride * height); + break; + } +} + +static void fill_gradient_rgb32(const struct util_rgb_info *rgb, + void *mem, + unsigned int width, unsigned int height, + unsigned int stride) +{ + unsigned int i, j; + + for (i = 0; i < height / 2; i++) { + uint32_t *row = mem; + + for (j = 0; j < width / 2; j++) { + uint32_t value = MAKE_RGBA10(rgb, j & 0x3ff, j & 0x3ff, j & 0x3ff, 0); + row[2*j] = row[2*j+1] = cpu_to_le32(value); + } + mem += stride; + } + + for (; i < height; i++) { + uint32_t *row = mem; + + for (j = 0; j < width / 2; j++) { + uint32_t value = MAKE_RGBA10(rgb, j & 0x3fc, j & 0x3fc, j & 0x3fc, 0); + row[2*j] = row[2*j+1] = cpu_to_le32(value); + } + mem += stride; + } +} + +static void fill_gradient_rgb16fp(const struct util_rgb_info *rgb, + void *mem, + unsigned int width, unsigned int height, + unsigned int stride) +{ + unsigned int i, j; + + for (i = 0; i < height / 2; i++) { + uint64_t *row = mem; + + for (j = 0; j < width / 2; j++) { + uint64_t value = MAKE_RGBA10FP16(rgb, j & 0x3ff, j & 0x3ff, j & 0x3ff, 0); + row[2*j] = row[2*j+1] = value; + } + mem += stride; + } + + for (; i < height; i++) { + uint64_t *row = mem; + + for (j = 0; j < width / 2; j++) { + uint64_t value = MAKE_RGBA10FP16(rgb, j & 0x3fc, j & 0x3fc, j & 0x3fc, 0); + row[2*j] = row[2*j+1] = value; + } + mem += stride; + } +} + +/* The gradient pattern creates two horizontal gray gradients, split + * into two halves. The top half has 10bpc precision, the bottom half + * has 8bpc precision. When using with a 10bpc fb format, there are 3 + * possible outcomes: + * + * - Pixel data is encoded as 8bpc to the display, no dithering. This + * would lead to the top and bottom halves looking identical. + * + * - Pixel data is encoded as 8bpc to the display, with dithering. This + * would lead to there being a visible difference between the two halves, + * but the top half would look a little speck-y due to the dithering. + * + * - Pixel data is encoded at 10bpc+ to the display (which implies + * the display is able to show this level of depth). This should + * lead to the top half being a very clean gradient, and visibly different + * from the bottom half. + * + * Once we support additional fb formats, this approach could be extended + * to distinguish even higher bpc precisions. + * + * Note that due to practical size considerations, for the screens + * where this matters, the pattern actually emits stripes 2-pixels + * wide for each gradient color. Otherwise the difference may be a bit + * hard to notice. + */ +static void fill_gradient(const struct util_format_info *info, void *planes[3], + unsigned int width, unsigned int height, + unsigned int stride) +{ + switch (info->format) { + case DRM_FORMAT_ARGB8888: + case DRM_FORMAT_XRGB8888: + case DRM_FORMAT_ABGR8888: + case DRM_FORMAT_XBGR8888: + case DRM_FORMAT_RGBA8888: + case DRM_FORMAT_RGBX8888: + case DRM_FORMAT_BGRA8888: + case DRM_FORMAT_BGRX8888: + case DRM_FORMAT_ARGB2101010: + case DRM_FORMAT_XRGB2101010: + case DRM_FORMAT_ABGR2101010: + case DRM_FORMAT_XBGR2101010: + case DRM_FORMAT_RGBA1010102: + case DRM_FORMAT_RGBX1010102: + case DRM_FORMAT_BGRA1010102: + case DRM_FORMAT_BGRX1010102: + return fill_gradient_rgb32(&info->rgb, planes[0], + width, height, stride); + + case DRM_FORMAT_XRGB16161616F: + case DRM_FORMAT_XBGR16161616F: + case DRM_FORMAT_ARGB16161616F: + case DRM_FORMAT_ABGR16161616F: + return fill_gradient_rgb16fp(&info->rgb, planes[0], + width, height, stride); + } +} + +/* + * util_fill_pattern - Fill a buffer with a test pattern + * @format: Pixel format + * @pattern: Test pattern + * @planes: Array of buffers + * @width: Width in pixels + * @height: Height in pixels + * @stride: Line stride (pitch) in bytes + * + * Fill the buffers with the test pattern specified by the pattern parameter. + * Supported formats vary depending on the selected pattern. + */ +void util_fill_pattern(uint32_t format, enum util_fill_pattern pattern, + void *planes[3], unsigned int width, + unsigned int height, unsigned int stride) +{ + const struct util_format_info *info; + + info = util_format_info_find(format); + if (info == NULL) + return; + + switch (pattern) { + case UTIL_PATTERN_TILES: + return fill_tiles(info, planes, width, height, stride); + + case UTIL_PATTERN_SMPTE: + return fill_smpte(info, planes, width, height, stride); + + case UTIL_PATTERN_PLAIN: + return fill_plain(info, planes, height, stride); + + case UTIL_PATTERN_GRADIENT: + return fill_gradient(info, planes, width, height, stride); + + default: + printf("Error: unsupported test pattern %u.\n", pattern); + break; + } +} + +static const char *pattern_names[] = { + [UTIL_PATTERN_TILES] = "tiles", + [UTIL_PATTERN_SMPTE] = "smpte", + [UTIL_PATTERN_PLAIN] = "plain", + [UTIL_PATTERN_GRADIENT] = "gradient", +}; + +enum util_fill_pattern util_pattern_enum(const char *name) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(pattern_names); i++) + if (!strcmp(pattern_names[i], name)) + return (enum util_fill_pattern)i; + + printf("Error: unsupported test pattern %s.\n", name); + return UTIL_PATTERN_SMPTE; +} -- cgit v1.2.3