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feat(gpu): improve NXP's PXP and VGLite accelerators (#3952)

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Signed-off-by: Nicușor Cîțu <nicusor.citu@nxp.com>
Signed-off-by: Stefan Babatie <stefan.babatie@nxp.com>
Signed-off-by: Wenbin Yuan <wenbin.yuan@nxp.com>
Co-authored-by: Stefan Babatie <stefan.babatie@nxp.com>
Co-authored-by: Wenbin Yuan <wenbin.yuan@nxp.com>
This commit is contained in:
nicusorcitu
2023-02-01 11:35:24 +02:00
committed by GitHub
parent 39f424767f
commit 361ee79611
33 changed files with 2647 additions and 1696 deletions
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427
src/draw/nxp/vglite/lv_draw_vglite_rect.c
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@@ -6,7 +6,7 @@
/**
* MIT License
*
* Copyright 2021, 2022 NXP
* Copyright 2021-2023 NXP
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@@ -34,10 +34,28 @@
#include "lv_draw_vglite_rect.h"
#if LV_USE_GPU_NXP_VG_LITE
#include "lv_vglite_buf.h"
#include <math.h>
/*********************
* DEFINES
*********************/
/*********************
* DEFINES
*********************/
/* Path data sizes for different elements */
#define CUBIC_PATH_DATA_SIZE 7 /* 1 opcode, 6 arguments */
#define LINE_PATH_DATA_SIZE 3 /* 1 opcode, 2 arguments */
#define MOVE_PATH_DATA_SIZE 3 /* 1 opcode, 2 arguments */
#define END_PATH_DATA_SIZE 1 /* 1 opcode, 0 arguments */
/* Maximum possible rectangle path size
* is in the rounded rectangle case:
* - 1 move for the path start
* - 4 cubics for the corners
* - 4 lines for the sides
* - 1 end for the path end */
#define RECT_PATH_DATA_MAX_SIZE 1 * MOVE_PATH_DATA_SIZE + 4 * CUBIC_PATH_DATA_SIZE + 4 * LINE_PATH_DATA_SIZE + 1 * END_PATH_DATA_SIZE
/**********************
* TYPEDEFS
@@ -47,6 +65,18 @@
* STATIC PROTOTYPES
**********************/
/**
* Generates path data for rectangle drawing.
*
* @param[in/out] path The path data to initialize
* @param[in/out] path_size The resulting size of the created path data
* @param[in] dsc The style descriptor for the rectangle to be drawn
* @param[in] coords The coordinates of the rectangle to be drawn
*/
static void lv_vglite_create_rect_path_data(int32_t * path_data, uint32_t * path_data_size,
lv_coord_t radius,
const lv_area_t * coords);
/**********************
* STATIC VARIABLES
**********************/
@@ -59,94 +89,37 @@
* GLOBAL FUNCTIONS
**********************/
lv_res_t lv_gpu_nxp_vglite_draw_bg(lv_draw_ctx_t * draw_ctx, const lv_draw_rect_dsc_t * dsc, const lv_area_t * coords)
lv_res_t lv_gpu_nxp_vglite_draw_bg(const lv_area_t * coords, const lv_area_t * clip_area,
const lv_draw_rect_dsc_t * dsc)
{
vg_lite_buffer_t vgbuf;
vg_lite_error_t err = VG_LITE_SUCCESS;
lv_coord_t dest_width = lv_area_get_width(draw_ctx->buf_area);
lv_coord_t dest_height = lv_area_get_height(draw_ctx->buf_area);
vg_lite_path_t path;
vg_lite_color_t vgcol; /* vglite takes ABGR */
vg_lite_matrix_t matrix;
lv_coord_t width = lv_area_get_width(coords);
lv_coord_t height = lv_area_get_height(coords);
vg_lite_linear_gradient_t gradient;
vg_lite_matrix_t * grad_matrix;
vg_lite_color_t vgcol;
lv_coord_t radius = dsc->radius;
vg_lite_buffer_t * vgbuf = lv_vglite_get_dest_buf();
if(dsc->radius < 0)
return LV_RES_INV;
/* Make areas relative to draw buffer */
lv_area_t rel_coords;
lv_area_copy(&rel_coords, coords);
lv_area_move(&rel_coords, -draw_ctx->buf_area->x1, -draw_ctx->buf_area->y1);
lv_area_t rel_clip;
lv_area_copy(&rel_clip, draw_ctx->clip_area);
lv_area_move(&rel_clip, -draw_ctx->buf_area->x1, -draw_ctx->buf_area->y1);
/*** Init destination buffer ***/
if(lv_vglite_init_buf(&vgbuf, (uint32_t)dest_width, (uint32_t)dest_height, (uint32_t)dest_width * sizeof(lv_color_t),
(const lv_color_t *)draw_ctx->buf, false) != LV_RES_OK)
VG_LITE_RETURN_INV("Init buffer failed.");
/*** Init path ***/
int32_t rad = dsc->radius;
if(dsc->radius == LV_RADIUS_CIRCLE) {
rad = (width > height) ? height / 2 : width / 2;
}
if((dsc->radius == LV_RADIUS_CIRCLE) && (width == height)) {
float tang = ((float)rad * BEZIER_OPTIM_CIRCLE);
int32_t cpoff = (int32_t)tang;
int32_t circle_path[] = { /*VG circle path*/
VLC_OP_MOVE, rel_coords.x1 + rad, rel_coords.y1,
VLC_OP_CUBIC_REL, cpoff, 0, rad, rad - cpoff, rad, rad, /* top-right */
VLC_OP_CUBIC_REL, 0, cpoff, cpoff - rad, rad, 0 - rad, rad, /* bottom-right */
VLC_OP_CUBIC_REL, 0 - cpoff, 0, 0 - rad, cpoff - rad, 0 - rad, 0 - rad, /* bottom-left */
VLC_OP_CUBIC_REL, 0, 0 - cpoff, rad - cpoff, 0 - rad, rad, 0 - rad, /* top-left */
VLC_OP_END
};
err = vg_lite_init_path(&path, VG_LITE_S32, VG_LITE_HIGH, sizeof(circle_path), circle_path,
(vg_lite_float_t) rel_clip.x1, (vg_lite_float_t) rel_clip.y1,
((vg_lite_float_t) rel_clip.x2) + 1.0f, ((vg_lite_float_t) rel_clip.y2) + 1.0f);
}
else if(dsc->radius > 0) {
float tang = ((float)rad * BEZIER_OPTIM_CIRCLE);
int32_t cpoff = (int32_t)tang;
int32_t rounded_path[] = { /*VG rounded rectangular path*/
VLC_OP_MOVE, rel_coords.x1 + rad, rel_coords.y1,
VLC_OP_LINE, rel_coords.x2 - rad + 1, rel_coords.y1, /* top */
VLC_OP_CUBIC_REL, cpoff, 0, rad, rad - cpoff, rad, rad, /* top-right */
VLC_OP_LINE, rel_coords.x2 + 1, rel_coords.y2 - rad + 1, /* right */
VLC_OP_CUBIC_REL, 0, cpoff, cpoff - rad, rad, 0 - rad, rad, /* bottom-right */
VLC_OP_LINE, rel_coords.x1 + rad, rel_coords.y2 + 1, /* bottom */
VLC_OP_CUBIC_REL, 0 - cpoff, 0, 0 - rad, cpoff - rad, 0 - rad, 0 - rad, /* bottom-left */
VLC_OP_LINE, rel_coords.x1, rel_coords.y1 + rad, /* left */
VLC_OP_CUBIC_REL, 0, 0 - cpoff, rad - cpoff, 0 - rad, rad, 0 - rad, /* top-left */
VLC_OP_END
};
err = vg_lite_init_path(&path, VG_LITE_S32, VG_LITE_HIGH, sizeof(rounded_path), rounded_path,
(vg_lite_float_t) rel_clip.x1, (vg_lite_float_t) rel_clip.y1,
((vg_lite_float_t) rel_clip.x2) + 1.0f, ((vg_lite_float_t) rel_clip.y2) + 1.0f);
}
else {
int32_t rect_path[] = { /*VG rectangular path*/
VLC_OP_MOVE, rel_coords.x1, rel_coords.y1,
VLC_OP_LINE, rel_coords.x2 + 1, rel_coords.y1,
VLC_OP_LINE, rel_coords.x2 + 1, rel_coords.y2 + 1,
VLC_OP_LINE, rel_coords.x1, rel_coords.y2 + 1,
VLC_OP_LINE, rel_coords.x1, rel_coords.y1,
VLC_OP_END
};
err = vg_lite_init_path(&path, VG_LITE_S32, VG_LITE_LOW, sizeof(rect_path), rect_path,
(vg_lite_float_t) rel_clip.x1, (vg_lite_float_t) rel_clip.y1,
((vg_lite_float_t) rel_clip.x2) + 1.0f, ((vg_lite_float_t) rel_clip.y2) + 1.0f);
}
int32_t path_data[RECT_PATH_DATA_MAX_SIZE];
uint32_t path_data_size;
lv_vglite_create_rect_path_data(path_data, &path_data_size, radius, coords);
vg_lite_quality_t path_quality = dsc->radius > 0 ? VG_LITE_HIGH : VG_LITE_LOW;
vg_lite_path_t path;
err = vg_lite_init_path(&path, VG_LITE_S32, path_quality, path_data_size, path_data,
(vg_lite_float_t)clip_area->x1, (vg_lite_float_t)clip_area->y1,
((vg_lite_float_t)clip_area->x2) + 1.0f, ((vg_lite_float_t)clip_area->y2) + 1.0f);
VG_LITE_ERR_RETURN_INV(err, "Init path failed.");
vg_lite_matrix_t matrix;
vg_lite_identity(&matrix);
vg_lite_matrix_t * grad_matrix;
vg_lite_linear_gradient_t gradient;
/*** Init Color/Gradient ***/
if(dsc->bg_grad.dir != (lv_grad_dir_t)LV_GRAD_DIR_NONE) {
uint32_t colors[2];
@@ -154,18 +127,14 @@ lv_res_t lv_gpu_nxp_vglite_draw_bg(lv_draw_ctx_t * draw_ctx, const lv_draw_rect_
lv_color32_t col32[2];
/* Gradient setup */
uint8_t cnt = MAX(dsc->bg_grad.stops_count, 2);
uint8_t cnt = LV_MAX(dsc->bg_grad.stops_count, 2);
for(uint8_t i = 0; i < cnt; i++) {
col32[i].full = lv_color_to32(dsc->bg_grad.stops[i].color); /*Convert color to RGBA8888*/
stops[i] = dsc->bg_grad.stops[i].frac;
#if LV_COLOR_DEPTH==16
colors[i] = ((uint32_t)col32[i].ch.alpha << 24) | ((uint32_t)col32[i].ch.blue << 16) |
((uint32_t)col32[i].ch.green << 8) | (uint32_t)col32[i].ch.red;
#else /*LV_COLOR_DEPTH==32*/
/* watchout: red and blue color components are inverted versus vg_lite_color_t order */
colors[i] = ((uint32_t)col32[i].ch.alpha << 24) | ((uint32_t)col32[i].ch.red << 16) |
((uint32_t)col32[i].ch.green << 8) | (uint32_t)col32[i].ch.blue;
#endif
vg_lite_buffer_format_t color_format = LV_COLOR_DEPTH == 16 ? VG_LITE_ABGR8888 : VG_LITE_ARGB8888;
if(lv_vglite_premult_and_swizzle(&colors[i], col32[i], dsc->bg_opa, color_format) != LV_RES_OK)
VG_LITE_RETURN_INV("Premultiplication and swizzle failed.");
}
lv_memset_00(&gradient, sizeof(vg_lite_linear_gradient_t));
@@ -181,7 +150,7 @@ lv_res_t lv_gpu_nxp_vglite_draw_bg(lv_draw_ctx_t * draw_ctx, const lv_draw_rect_
grad_matrix = vg_lite_get_grad_matrix(&gradient);
vg_lite_identity(grad_matrix);
vg_lite_translate((float)rel_coords.x1, (float)rel_coords.y1, grad_matrix);
vg_lite_translate((float)coords->x1, (float)coords->y1, grad_matrix);
if(dsc->bg_grad.dir == (lv_grad_dir_t)LV_GRAD_DIR_VER) {
vg_lite_scale(1.0f, (float)height / 256.0f, grad_matrix);
@@ -192,39 +161,22 @@ lv_res_t lv_gpu_nxp_vglite_draw_bg(lv_draw_ctx_t * draw_ctx, const lv_draw_rect_
}
}
lv_opa_t bg_opa = dsc->bg_opa;
lv_color32_t bg_col32 = {.full = lv_color_to32(dsc->bg_color)}; /*Convert color to RGBA8888*/
if(bg_opa <= (lv_opa_t)LV_OPA_MAX) {
/* Only pre-multiply color if hardware pre-multiplication is not present */
if(!vg_lite_query_feature(gcFEATURE_BIT_VG_PE_PREMULTIPLY)) {
bg_col32.ch.red = (uint8_t)(((uint16_t)bg_col32.ch.red * bg_opa) >> 8);
bg_col32.ch.green = (uint8_t)(((uint16_t)bg_col32.ch.green * bg_opa) >> 8);
bg_col32.ch.blue = (uint8_t)(((uint16_t)bg_col32.ch.blue * bg_opa) >> 8);
}
bg_col32.ch.alpha = bg_opa;
}
#if LV_COLOR_DEPTH==16
vgcol = bg_col32.full;
#else /*LV_COLOR_DEPTH==32*/
vgcol = ((uint32_t)bg_col32.ch.alpha << 24) | ((uint32_t)bg_col32.ch.blue << 16) |
((uint32_t)bg_col32.ch.green << 8) | (uint32_t)bg_col32.ch.red;
#endif
/*Clean & invalidate cache*/
lv_vglite_invalidate_cache();
vg_lite_buffer_format_t color_format = LV_COLOR_DEPTH == 16 ? VG_LITE_BGRA8888 : VG_LITE_ABGR8888;
if(lv_vglite_premult_and_swizzle(&vgcol, bg_col32, dsc->bg_opa, color_format) != LV_RES_OK)
VG_LITE_RETURN_INV("Premultiplication and swizzle failed.");
/*** Draw rectangle ***/
if(dsc->bg_grad.dir == (lv_grad_dir_t)LV_GRAD_DIR_NONE) {
err = vg_lite_draw(&vgbuf, &path, VG_LITE_FILL_EVEN_ODD, &matrix, VG_LITE_BLEND_SRC_OVER, vgcol);
err = vg_lite_draw(vgbuf, &path, VG_LITE_FILL_EVEN_ODD, &matrix, VG_LITE_BLEND_SRC_OVER, vgcol);
}
else {
err = vg_lite_draw_gradient(&vgbuf, &path, VG_LITE_FILL_EVEN_ODD, &matrix, &gradient, VG_LITE_BLEND_SRC_OVER);
err = vg_lite_draw_gradient(vgbuf, &path, VG_LITE_FILL_EVEN_ODD, &matrix, &gradient, VG_LITE_BLEND_SRC_OVER);
}
VG_LITE_ERR_RETURN_INV(err, "Draw gradient failed.");
err = vg_lite_finish();
VG_LITE_ERR_RETURN_INV(err, "Finish failed.");
if(lv_vglite_run() != LV_RES_OK)
VG_LITE_RETURN_INV("Run failed.");
err = vg_lite_clear_path(&path);
VG_LITE_ERR_RETURN_INV(err, "Clear path failed.");
@@ -237,6 +189,261 @@ lv_res_t lv_gpu_nxp_vglite_draw_bg(lv_draw_ctx_t * draw_ctx, const lv_draw_rect_
return LV_RES_OK;
}
lv_res_t lv_gpu_nxp_vglite_draw_border_generic(const lv_area_t * coords, const lv_area_t * clip_area,
const lv_draw_rect_dsc_t * dsc, bool border)
{
vg_lite_error_t err = VG_LITE_SUCCESS;
vg_lite_color_t vgcol; /* vglite takes ABGR */
lv_coord_t radius = dsc->radius;
vg_lite_buffer_t * vgbuf = lv_vglite_get_dest_buf();
if(radius < 0)
return LV_RES_INV;
if(border) {
/* Draw border - only has radius if object has radius*/
lv_coord_t border_half = (lv_coord_t)floor(dsc->border_width / 2.0f);
if(radius > border_half)
radius = radius - border_half;
}
else {
/* Draw outline - always has radius, leave the same radius in the circle case */
lv_coord_t outline_half = (lv_coord_t)ceil(dsc->outline_width / 2.0f);
if(radius < (lv_coord_t)LV_RADIUS_CIRCLE - outline_half)
radius = radius + outline_half;
}
vg_lite_cap_style_t cap_style = (radius) ? VG_LITE_CAP_ROUND : VG_LITE_CAP_BUTT;
vg_lite_join_style_t join_style = (radius) ? VG_LITE_JOIN_ROUND : VG_LITE_JOIN_MITER;
/* Choose vglite blend mode based on given lvgl blend mode */
vg_lite_blend_t vglite_blend_mode = lv_vglite_get_blend_mode(dsc->blend_mode);
/*** Init path ***/
int32_t path_data[RECT_PATH_DATA_MAX_SIZE];
uint32_t path_data_size;
lv_vglite_create_rect_path_data(path_data, &path_data_size, radius, coords);
vg_lite_quality_t path_quality = dsc->radius > 0 ? VG_LITE_HIGH : VG_LITE_LOW;
vg_lite_path_t path;
err = vg_lite_init_path(&path, VG_LITE_S32, path_quality, path_data_size, path_data,
(vg_lite_float_t)clip_area->x1, (vg_lite_float_t)clip_area->y1,
((vg_lite_float_t)clip_area->x2) + 1.0f, ((vg_lite_float_t)clip_area->y2) + 1.0f);
VG_LITE_ERR_RETURN_INV(err, "Init path failed.");
vg_lite_matrix_t matrix;
vg_lite_identity(&matrix);
lv_opa_t opa;
lv_color32_t col32;
lv_coord_t line_width;
if(border) {
opa = dsc->border_opa;
col32.full = lv_color_to32(dsc->border_color); /*Convert color to RGBA8888*/
line_width = dsc->border_width;
}
else {
opa = dsc->outline_opa;
col32.full = lv_color_to32(dsc->outline_color); /*Convert color to RGBA8888*/
line_width = dsc->outline_width;
}
vg_lite_buffer_format_t color_format = LV_COLOR_DEPTH == 16 ? VG_LITE_BGRA8888 : VG_LITE_ABGR8888;
if(lv_vglite_premult_and_swizzle(&vgcol, col32, opa, color_format) != LV_RES_OK)
VG_LITE_RETURN_INV("Premultiplication and swizzle failed.");
/*** Draw border ***/
err = vg_lite_set_draw_path_type(&path, VG_LITE_DRAW_STROKE_PATH);
VG_LITE_ERR_RETURN_INV(err, "Set draw path type failed.");
err = vg_lite_set_stroke(&path, cap_style, join_style, line_width, 8, NULL, 0, 0, vgcol);
VG_LITE_ERR_RETURN_INV(err, "Set stroke failed.");
err = vg_lite_update_stroke(&path);
VG_LITE_ERR_RETURN_INV(err, "Update stroke failed.");
err = vg_lite_draw(vgbuf, &path, VG_LITE_FILL_NON_ZERO, &matrix, vglite_blend_mode, vgcol);
VG_LITE_ERR_RETURN_INV(err, "Draw border failed.");
if(lv_vglite_run() != LV_RES_OK)
VG_LITE_RETURN_INV("Run failed.");
err = vg_lite_clear_path(&path);
VG_LITE_ERR_RETURN_INV(err, "Clear path failed.");
return LV_RES_OK;
}
static void lv_vglite_create_rect_path_data(int32_t * path_data, uint32_t * path_data_size,
lv_coord_t radius,
const lv_area_t * coords)
{
lv_coord_t rect_width = lv_area_get_width(coords);
lv_coord_t rect_height = lv_area_get_height(coords);
/* Get the final radius. Can't be larger than the half of the shortest side */
int32_t shortest_side = LV_MIN(rect_width, rect_height);
int32_t final_radius = LV_MIN(radius, shortest_side / 2);
/* Path data element index */
uint8_t pidx = 0;
if((radius == (lv_coord_t)LV_RADIUS_CIRCLE) && (rect_width == rect_height)) {
/* Get the control point offset for rounded cases */
int32_t cpoff = (int32_t)((float)final_radius * BEZIER_OPTIM_CIRCLE);
/* Circle case */
/* Starting point */
path_data[pidx++] = VLC_OP_MOVE;
path_data[pidx++] = coords->x1 + final_radius;
path_data[pidx++] = coords->y1;
/* Top-right arc */
path_data[pidx++] = VLC_OP_CUBIC_REL;
path_data[pidx++] = cpoff;
path_data[pidx++] = 0;
path_data[pidx++] = final_radius;
path_data[pidx++] = final_radius - cpoff;
path_data[pidx++] = final_radius;
path_data[pidx++] = final_radius;
/* Bottom-right arc*/
path_data[pidx++] = VLC_OP_CUBIC_REL;
path_data[pidx++] = 0;
path_data[pidx++] = cpoff;
path_data[pidx++] = cpoff - final_radius;
path_data[pidx++] = final_radius;
path_data[pidx++] = 0 - final_radius;
path_data[pidx++] = final_radius;
/* Bottom-left arc */
path_data[pidx++] = VLC_OP_CUBIC_REL;
path_data[pidx++] = 0 - cpoff;
path_data[pidx++] = 0;
path_data[pidx++] = 0 - final_radius;
path_data[pidx++] = cpoff - final_radius;
path_data[pidx++] = 0 - final_radius;
path_data[pidx++] = 0 - final_radius;
/* Top-left arc*/
path_data[pidx++] = VLC_OP_CUBIC_REL;
path_data[pidx++] = 0;
path_data[pidx++] = 0 - cpoff;
path_data[pidx++] = final_radius - cpoff;
path_data[pidx++] = 0 - final_radius;
path_data[pidx++] = final_radius;
path_data[pidx++] = 0 - final_radius;
/* Ending point */
path_data[pidx++] = VLC_OP_END;
}
else if(radius > 0) {
/* Get the control point offset for rounded cases */
int32_t cpoff = (int32_t)((float)final_radius * BEZIER_OPTIM_CIRCLE);
/* Rounded rectangle case */
/* Starting point */
path_data[pidx++] = VLC_OP_MOVE;
path_data[pidx++] = coords->x1 + final_radius;
path_data[pidx++] = coords->y1;
/* Top side */
path_data[pidx++] = VLC_OP_LINE;
path_data[pidx++] = coords->x2 - final_radius + 1; // Extended for VGLite
path_data[pidx++] = coords->y1;
/* Top-right corner */
path_data[pidx++] = VLC_OP_CUBIC_REL;
path_data[pidx++] = cpoff;
path_data[pidx++] = 0;
path_data[pidx++] = final_radius;
path_data[pidx++] = final_radius - cpoff;
path_data[pidx++] = final_radius;
path_data[pidx++] = final_radius;
/* Right side */
path_data[pidx++] = VLC_OP_LINE;
path_data[pidx++] = coords->x2 + 1; // Extended for VGLite
path_data[pidx++] = coords->y2 - final_radius + 1; // Extended for VGLite
/* Bottom-right corner*/
path_data[pidx++] = VLC_OP_CUBIC_REL;
path_data[pidx++] = 0;
path_data[pidx++] = cpoff;
path_data[pidx++] = cpoff - final_radius;
path_data[pidx++] = final_radius;
path_data[pidx++] = 0 - final_radius;
path_data[pidx++] = final_radius;
/* Bottom side */
path_data[pidx++] = VLC_OP_LINE;
path_data[pidx++] = coords->x1 + final_radius;
path_data[pidx++] = coords->y2 + 1; // Extended for VGLite
/* Bottom-left corner */
path_data[pidx++] = VLC_OP_CUBIC_REL;
path_data[pidx++] = 0 - cpoff;
path_data[pidx++] = 0;
path_data[pidx++] = 0 - final_radius;
path_data[pidx++] = cpoff - final_radius;
path_data[pidx++] = 0 - final_radius;
path_data[pidx++] = 0 - final_radius;
/* Left side*/
path_data[pidx++] = VLC_OP_LINE;
path_data[pidx++] = coords->x1;
path_data[pidx++] = coords->y1 + final_radius;
/* Top-left corner */
path_data[pidx++] = VLC_OP_CUBIC_REL;
path_data[pidx++] = 0;
path_data[pidx++] = 0 - cpoff;
path_data[pidx++] = final_radius - cpoff;
path_data[pidx++] = 0 - final_radius;
path_data[pidx++] = final_radius;
path_data[pidx++] = 0 - final_radius;
/* Ending point */
path_data[pidx++] = VLC_OP_END;
}
else {
/* Non-rounded rectangle case */
/* Starting point */
path_data[pidx++] = VLC_OP_MOVE;
path_data[pidx++] = coords->x1;
path_data[pidx++] = coords->y1;
/* Top side */
path_data[pidx++] = VLC_OP_LINE;
path_data[pidx++] = coords->x2 + 1; // Extended for VGLite
path_data[pidx++] = coords->y1;
/* Right side */
path_data[pidx++] = VLC_OP_LINE;
path_data[pidx++] = coords->x2 + 1; // Extended for VGLite
path_data[pidx++] = coords->y2 + 1; // Extended for VGLite
/* Bottom side */
path_data[pidx++] = VLC_OP_LINE;
path_data[pidx++] = coords->x1;
path_data[pidx++] = coords->y2 + 1; // Extended for VGLite
/* Left side*/
path_data[pidx++] = VLC_OP_LINE;
path_data[pidx++] = coords->x1;
path_data[pidx++] = coords->y1;
/* Ending point */
path_data[pidx++] = VLC_OP_END;
}
/* Resulting path size */
*path_data_size = pidx * sizeof(int32_t);
}
/**********************
* STATIC FUNCTIONS
**********************/