From 07cfb8fe799901948afd6af05ef4674173713bcb Mon Sep 17 00:00:00 2001 From: Elliott Hughes Date: Fri, 10 Apr 2015 13:12:05 -0700 Subject: Switch minui over to C++. Change-Id: I59e08a304ae514a3fdb6fab58721f11670bc1b01 --- minui/graphics.c | 406 ------------------------------------------------------- 1 file changed, 406 deletions(-) delete mode 100644 minui/graphics.c (limited to 'minui/graphics.c') diff --git a/minui/graphics.c b/minui/graphics.c deleted file mode 100644 index 9d1e1b480..000000000 --- a/minui/graphics.c +++ /dev/null @@ -1,406 +0,0 @@ -/* - * Copyright (C) 2007 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include -#include -#include -#include - -#include -#include - -#include -#include -#include - -#include -#include - -#include - -#include "font_10x18.h" -#include "minui.h" -#include "graphics.h" - -typedef struct { - GRSurface* texture; - int cwidth; - int cheight; -} GRFont; - -static GRFont* gr_font = NULL; -static minui_backend* gr_backend = NULL; - -static int overscan_percent = OVERSCAN_PERCENT; -static int overscan_offset_x = 0; -static int overscan_offset_y = 0; - -static unsigned char gr_current_r = 255; -static unsigned char gr_current_g = 255; -static unsigned char gr_current_b = 255; -static unsigned char gr_current_a = 255; - -static GRSurface* gr_draw = NULL; - -static bool outside(int x, int y) -{ - return x < 0 || x >= gr_draw->width || y < 0 || y >= gr_draw->height; -} - -int gr_measure(const char *s) -{ - return gr_font->cwidth * strlen(s); -} - -void gr_font_size(int *x, int *y) -{ - *x = gr_font->cwidth; - *y = gr_font->cheight; -} - -static void text_blend(unsigned char* src_p, int src_row_bytes, - unsigned char* dst_p, int dst_row_bytes, - int width, int height) -{ - for (int j = 0; j < height; ++j) { - unsigned char* sx = src_p; - unsigned char* px = dst_p; - for (int i = 0; i < width; ++i) { - unsigned char a = *sx++; - if (gr_current_a < 255) a = ((int)a * gr_current_a) / 255; - if (a == 255) { - *px++ = gr_current_r; - *px++ = gr_current_g; - *px++ = gr_current_b; - px++; - } else if (a > 0) { - *px = (*px * (255-a) + gr_current_r * a) / 255; - ++px; - *px = (*px * (255-a) + gr_current_g * a) / 255; - ++px; - *px = (*px * (255-a) + gr_current_b * a) / 255; - ++px; - ++px; - } else { - px += 4; - } - } - src_p += src_row_bytes; - dst_p += dst_row_bytes; - } -} - -void gr_text(int x, int y, const char *s, int bold) -{ - GRFont* font = gr_font; - - if (!font->texture || gr_current_a == 0) return; - - bold = bold && (font->texture->height != font->cheight); - - x += overscan_offset_x; - y += overscan_offset_y; - - unsigned char ch; - while ((ch = *s++)) { - if (outside(x, y) || outside(x+font->cwidth-1, y+font->cheight-1)) break; - - if (ch < ' ' || ch > '~') { - ch = '?'; - } - - unsigned char* src_p = font->texture->data + ((ch - ' ') * font->cwidth) + - (bold ? font->cheight * font->texture->row_bytes : 0); - unsigned char* dst_p = gr_draw->data + y*gr_draw->row_bytes + x*gr_draw->pixel_bytes; - - text_blend(src_p, font->texture->row_bytes, - dst_p, gr_draw->row_bytes, - font->cwidth, font->cheight); - - x += font->cwidth; - } -} - -void gr_texticon(int x, int y, GRSurface* icon) { - if (icon == NULL) return; - - if (icon->pixel_bytes != 1) { - printf("gr_texticon: source has wrong format\n"); - return; - } - - x += overscan_offset_x; - y += overscan_offset_y; - - if (outside(x, y) || outside(x+icon->width-1, y+icon->height-1)) return; - - unsigned char* src_p = icon->data; - unsigned char* dst_p = gr_draw->data + y*gr_draw->row_bytes + x*gr_draw->pixel_bytes; - - text_blend(src_p, icon->row_bytes, - dst_p, gr_draw->row_bytes, - icon->width, icon->height); -} - -void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a) -{ -#if defined(RECOVERY_ABGR) || defined(RECOVERY_BGRA) - gr_current_r = b; - gr_current_g = g; - gr_current_b = r; - gr_current_a = a; -#else - gr_current_r = r; - gr_current_g = g; - gr_current_b = b; - gr_current_a = a; -#endif -} - -void gr_clear() -{ - if (gr_current_r == gr_current_g && gr_current_r == gr_current_b) { - memset(gr_draw->data, gr_current_r, gr_draw->height * gr_draw->row_bytes); - } else { - unsigned char* px = gr_draw->data; - for (int y = 0; y < gr_draw->height; ++y) { - for (int x = 0; x < gr_draw->width; ++x) { - *px++ = gr_current_r; - *px++ = gr_current_g; - *px++ = gr_current_b; - px++; - } - px += gr_draw->row_bytes - (gr_draw->width * gr_draw->pixel_bytes); - } - } -} - -void gr_fill(int x1, int y1, int x2, int y2) -{ - x1 += overscan_offset_x; - y1 += overscan_offset_y; - - x2 += overscan_offset_x; - y2 += overscan_offset_y; - - if (outside(x1, y1) || outside(x2-1, y2-1)) return; - - unsigned char* p = gr_draw->data + y1 * gr_draw->row_bytes + x1 * gr_draw->pixel_bytes; - if (gr_current_a == 255) { - int x, y; - for (y = y1; y < y2; ++y) { - unsigned char* px = p; - for (x = x1; x < x2; ++x) { - *px++ = gr_current_r; - *px++ = gr_current_g; - *px++ = gr_current_b; - px++; - } - p += gr_draw->row_bytes; - } - } else if (gr_current_a > 0) { - int x, y; - for (y = y1; y < y2; ++y) { - unsigned char* px = p; - for (x = x1; x < x2; ++x) { - *px = (*px * (255-gr_current_a) + gr_current_r * gr_current_a) / 255; - ++px; - *px = (*px * (255-gr_current_a) + gr_current_g * gr_current_a) / 255; - ++px; - *px = (*px * (255-gr_current_a) + gr_current_b * gr_current_a) / 255; - ++px; - ++px; - } - p += gr_draw->row_bytes; - } - } -} - -void gr_blit(GRSurface* source, int sx, int sy, int w, int h, int dx, int dy) { - if (source == NULL) return; - - if (gr_draw->pixel_bytes != source->pixel_bytes) { - printf("gr_blit: source has wrong format\n"); - return; - } - - dx += overscan_offset_x; - dy += overscan_offset_y; - - if (outside(dx, dy) || outside(dx+w-1, dy+h-1)) return; - - unsigned char* src_p = source->data + sy*source->row_bytes + sx*source->pixel_bytes; - unsigned char* dst_p = gr_draw->data + dy*gr_draw->row_bytes + dx*gr_draw->pixel_bytes; - - int i; - for (i = 0; i < h; ++i) { - memcpy(dst_p, src_p, w * source->pixel_bytes); - src_p += source->row_bytes; - dst_p += gr_draw->row_bytes; - } -} - -unsigned int gr_get_width(GRSurface* surface) { - if (surface == NULL) { - return 0; - } - return surface->width; -} - -unsigned int gr_get_height(GRSurface* surface) { - if (surface == NULL) { - return 0; - } - return surface->height; -} - -static void gr_init_font(void) -{ - gr_font = calloc(sizeof(*gr_font), 1); - - int res = res_create_alpha_surface("font", &(gr_font->texture)); - if (res == 0) { - // The font image should be a 96x2 array of character images. The - // columns are the printable ASCII characters 0x20 - 0x7f. The - // top row is regular text; the bottom row is bold. - gr_font->cwidth = gr_font->texture->width / 96; - gr_font->cheight = gr_font->texture->height / 2; - } else { - printf("failed to read font: res=%d\n", res); - - // fall back to the compiled-in font. - gr_font->texture = malloc(sizeof(*gr_font->texture)); - gr_font->texture->width = font.width; - gr_font->texture->height = font.height; - gr_font->texture->row_bytes = font.width; - gr_font->texture->pixel_bytes = 1; - - unsigned char* bits = malloc(font.width * font.height); - gr_font->texture->data = (void*) bits; - - unsigned char data; - unsigned char* in = font.rundata; - while((data = *in++)) { - memset(bits, (data & 0x80) ? 255 : 0, data & 0x7f); - bits += (data & 0x7f); - } - - gr_font->cwidth = font.cwidth; - gr_font->cheight = font.cheight; - } -} - -#if 0 -// Exercises many of the gr_*() functions; useful for testing. -static void gr_test() { - GRSurface** images; - int frames; - int result = res_create_multi_surface("icon_installing", &frames, &images); - if (result < 0) { - printf("create surface %d\n", result); - gr_exit(); - return; - } - - time_t start = time(NULL); - int x; - for (x = 0; x <= 1200; ++x) { - if (x < 400) { - gr_color(0, 0, 0, 255); - } else { - gr_color(0, (x-400)%128, 0, 255); - } - gr_clear(); - - gr_color(255, 0, 0, 255); - gr_surface frame = images[x%frames]; - gr_blit(frame, 0, 0, frame->width, frame->height, x, 0); - - gr_color(255, 0, 0, 128); - gr_fill(400, 150, 600, 350); - - gr_color(255, 255, 255, 255); - gr_text(500, 225, "hello, world!", 0); - gr_color(255, 255, 0, 128); - gr_text(300+x, 275, "pack my box with five dozen liquor jugs", 1); - - gr_color(0, 0, 255, 128); - gr_fill(gr_draw->width - 200 - x, 300, gr_draw->width - x, 500); - - gr_draw = gr_backend->flip(gr_backend); - } - printf("getting end time\n"); - time_t end = time(NULL); - printf("got end time\n"); - printf("start %ld end %ld\n", (long)start, (long)end); - if (end > start) { - printf("%.2f fps\n", ((double)x) / (end-start)); - } -} -#endif - -void gr_flip() { - gr_draw = gr_backend->flip(gr_backend); -} - -int gr_init(void) -{ - gr_init_font(); - - gr_backend = open_adf(); - if (gr_backend) { - gr_draw = gr_backend->init(gr_backend); - if (!gr_draw) { - gr_backend->exit(gr_backend); - } - } - - if (!gr_draw) { - gr_backend = open_fbdev(); - gr_draw = gr_backend->init(gr_backend); - if (gr_draw == NULL) { - return -1; - } - } - - overscan_offset_x = gr_draw->width * overscan_percent / 100; - overscan_offset_y = gr_draw->height * overscan_percent / 100; - - gr_flip(); - gr_flip(); - - return 0; -} - -void gr_exit(void) -{ - gr_backend->exit(gr_backend); -} - -int gr_fb_width(void) -{ - return gr_draw->width - 2*overscan_offset_x; -} - -int gr_fb_height(void) -{ - return gr_draw->height - 2*overscan_offset_y; -} - -void gr_fb_blank(bool blank) -{ - gr_backend->blank(gr_backend, blank); -} -- cgit v1.2.3