From fbb4353a247157d32208f8f133cd1ee42f4fbc49 Mon Sep 17 00:00:00 2001 From: Ethan Yonker Date: Mon, 28 Dec 2015 21:54:50 +0100 Subject: Update minuitwrp graphics in line with latest minui Note: events.cpp is still old code renamed to cpp to make it easier to call functions like gr_fb_width(). I had to modify AOSP fbdev code to provide a separate memory surface for drawing to as drawing directly to the framebuffer resulted in rendering taking about 5 times longer. I also modified AOSP adf code to provide a separate memory surface for drawing for the same performance reasons. The Nexus 9 supports adf graphics. Overlay graphics work on at least one device. Overlay provides a separate memory buffer already so performance is good. I do not have a drm device yet that I know of. I made some attempt to update the drm code to determine the correct pixel format based on the drm graphics format, but what is available in pixel flinger and what is available in drm do not line up all that well. Reports are that the Pixel C is using drm graphics, but performance is slow, likely due to the use of a mmap instead of a memory buffyer. Change-Id: Ibd45bccca6ac2cb826037aa9b2aa5065cf683eed --- minuitwrp/graphics.c | 754 --------------------------------------------------- 1 file changed, 754 deletions(-) delete mode 100644 minuitwrp/graphics.c (limited to 'minuitwrp/graphics.c') diff --git a/minuitwrp/graphics.c b/minuitwrp/graphics.c deleted file mode 100644 index fb86c1450..000000000 --- a/minuitwrp/graphics.c +++ /dev/null @@ -1,754 +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 - -#include "minui.h" -#include "../gui/placement.h" - -#ifdef RECOVERY_BGRA -#define PIXEL_FORMAT GGL_PIXEL_FORMAT_BGRA_8888 -#define PIXEL_SIZE 4 -#endif -#ifdef RECOVERY_RGBA -#define PIXEL_FORMAT GGL_PIXEL_FORMAT_RGBA_8888 -#define PIXEL_SIZE 4 -#endif -#ifdef RECOVERY_RGBX -#define PIXEL_FORMAT GGL_PIXEL_FORMAT_RGBX_8888 -#define PIXEL_SIZE 4 -#endif -#ifndef PIXEL_FORMAT -#define PIXEL_FORMAT GGL_PIXEL_FORMAT_RGB_565 -#define PIXEL_SIZE 2 -#endif - -#define NUM_BUFFERS 2 -#define MAX_DISPLAY_DIM 2048 - -// #define PRINT_SCREENINFO 1 // Enables printing of screen info to log - -typedef struct { - int type; - GGLSurface texture; - unsigned offset[97]; - unsigned cheight; - unsigned ascent; -} GRFont; - -static GRFont *gr_font = 0; -static GGLContext *gr_context = 0; -static GGLSurface gr_font_texture; -static GGLSurface gr_framebuffer[NUM_BUFFERS]; -GGLSurface gr_mem_surface; -static unsigned gr_active_fb = 0; -static unsigned double_buffering = 0; -static int gr_is_curr_clr_opaque = 0; - -static int gr_fb_fd = -1; -static int gr_vt_fd = -1; - -struct fb_var_screeninfo vi; -static struct fb_fix_screeninfo fi; - -static bool has_overlay = false; -static int leftSplit = 0; -static int rightSplit = 0; - -bool target_has_overlay(char *version); -int free_ion_mem(void); -int alloc_ion_mem(unsigned int size); -int allocate_overlay(int fd, GGLSurface gr_fb[]); -int free_overlay(int fd); -int overlay_display_frame(int fd, GGLubyte* data, size_t size); - -#ifdef PRINT_SCREENINFO -static void print_fb_var_screeninfo() -{ - printf("vi.xres: %d\n", vi.xres); - printf("vi.yres: %d\n", vi.yres); - printf("vi.xres_virtual: %d\n", vi.xres_virtual); - printf("vi.yres_virtual: %d\n", vi.yres_virtual); - printf("vi.xoffset: %d\n", vi.xoffset); - printf("vi.yoffset: %d\n", vi.yoffset); - printf("vi.bits_per_pixel: %d\n", vi.bits_per_pixel); - printf("vi.grayscale: %d\n", vi.grayscale); -} -#endif - -#ifdef MSM_BSP -int getLeftSplit(void) { - //Default even split for all displays with high res - int lSplit = vi.xres / 2; - - //Override if split published by driver - if (leftSplit) - lSplit = leftSplit; - - return lSplit; -} - -int getRightSplit(void) { - return rightSplit; -} - - -void setDisplaySplit(void) { - char split[64] = {0}; - FILE* fp = fopen("/sys/class/graphics/fb0/msm_fb_split", "r"); - if (fp) { - //Format "left right" space as delimiter - if(fread(split, sizeof(char), 64, fp)) { - leftSplit = atoi(split); - printf("Left Split=%d\n",leftSplit); - char *rght = strpbrk(split, " "); - if (rght) - rightSplit = atoi(rght + 1); - printf("Right Split=%d\n", rightSplit); - } - } else { - printf("Failed to open mdss_fb_split node\n"); - } - if (fp) - fclose(fp); -} - -bool isDisplaySplit(void) { - if (vi.xres > MAX_DISPLAY_DIM) - return true; - //check if right split is set by driver - if (getRightSplit()) - return true; - - return false; -} - -int getFbXres(void) { - return vi.xres; -} - -int getFbYres (void) { - return vi.yres; -} -#endif // MSM_BSP - -static int get_framebuffer(GGLSurface *fb) -{ - int fd, index = 0; - void *bits; - - fd = open("/dev/graphics/fb0", O_RDWR); - - while (fd < 0 && index < 30) { - usleep(1000); - fd = open("/dev/graphics/fb0", O_RDWR); - index++; - } - if (fd < 0) { - perror("cannot open fb0\n"); - return -1; - } - - if (ioctl(fd, FBIOGET_VSCREENINFO, &vi) < 0) { - perror("failed to get fb0 info"); - close(fd); - return -1; - } - - fprintf(stderr, "Pixel format: %dx%d @ %dbpp\n", vi.xres, vi.yres, vi.bits_per_pixel); - - vi.bits_per_pixel = PIXEL_SIZE * 8; - if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_BGRA_8888) { - fprintf(stderr, "Pixel format: BGRA_8888\n"); - if (PIXEL_SIZE != 4) fprintf(stderr, "E: Pixel Size mismatch!\n"); - vi.red.offset = 8; - vi.red.length = 8; - vi.green.offset = 16; - vi.green.length = 8; - vi.blue.offset = 24; - vi.blue.length = 8; - vi.transp.offset = 0; - vi.transp.length = 8; - } else if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_RGBA_8888) { - fprintf(stderr, "Pixel format: RGBA_8888\n"); - if (PIXEL_SIZE != 4) fprintf(stderr, "E: Pixel Size mismatch!\n"); - vi.red.offset = 0; - vi.red.length = 8; - vi.green.offset = 8; - vi.green.length = 8; - vi.blue.offset = 16; - vi.blue.length = 8; - vi.transp.offset = 24; - vi.transp.length = 8; - } else if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_RGBX_8888) { - fprintf(stderr, "Pixel format: RGBX_8888\n"); - if (PIXEL_SIZE != 4) fprintf(stderr, "E: Pixel Size mismatch!\n"); - vi.red.offset = 24; - vi.red.length = 8; - vi.green.offset = 16; - vi.green.length = 8; - vi.blue.offset = 8; - vi.blue.length = 8; - vi.transp.offset = 0; - vi.transp.length = 8; - } else if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_RGB_565) { -#ifdef RECOVERY_RGB_565 - fprintf(stderr, "Pixel format: RGB_565\n"); - vi.blue.offset = 0; - vi.green.offset = 5; - vi.red.offset = 11; -#else - fprintf(stderr, "Pixel format: BGR_565\n"); - vi.blue.offset = 11; - vi.green.offset = 5; - vi.red.offset = 0; -#endif - if (PIXEL_SIZE != 2) fprintf(stderr, "E: Pixel Size mismatch!\n"); - vi.blue.length = 5; - vi.green.length = 6; - vi.red.length = 5; - vi.blue.msb_right = 0; - vi.green.msb_right = 0; - vi.red.msb_right = 0; - vi.transp.offset = 0; - vi.transp.length = 0; - } - else - { - perror("unknown pixel format"); - close(fd); - return -1; - } - - vi.vmode = FB_VMODE_NONINTERLACED; - vi.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE; - - if (ioctl(fd, FBIOPUT_VSCREENINFO, &vi) < 0) { - perror("failed to put fb0 info"); - close(fd); - return -1; - } - - if (ioctl(fd, FBIOGET_FSCREENINFO, &fi) < 0) { - perror("failed to get fb0 info"); - close(fd); - return -1; - } - -#ifdef MSM_BSP - has_overlay = target_has_overlay(fi.id); - - if (isTargetMdp5()) - setDisplaySplit(); -#else - has_overlay = false; -#endif - - if (!has_overlay) { - printf("Not using qualcomm overlay, '%s'\n", fi.id); - bits = mmap(0, fi.smem_len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); - if (bits == MAP_FAILED) { - perror("failed to mmap framebuffer"); - close(fd); - return -1; - } - } else { - printf("Using qualcomm overlay\n"); - } - -#ifdef RECOVERY_GRAPHICS_USE_LINELENGTH - vi.xres_virtual = fi.line_length / PIXEL_SIZE; -#endif - - fb->version = sizeof(*fb); - fb->width = vi.xres; - fb->height = vi.yres; -#ifdef BOARD_HAS_JANKY_BACKBUFFER - printf("setting JANKY BACKBUFFER\n"); - fb->stride = fi.line_length/2; -#else - fb->stride = vi.xres_virtual; -#endif - fb->format = PIXEL_FORMAT; - if (!has_overlay) { - fb->data = bits; - memset(fb->data, 0, vi.yres * fb->stride * PIXEL_SIZE); - } - - fb++; - -#ifndef TW_DISABLE_DOUBLE_BUFFERING - /* check if we can use double buffering */ - if (vi.yres * fi.line_length * 2 > fi.smem_len) -#else - printf("TW_DISABLE_DOUBLE_BUFFERING := true\n"); -#endif - return fd; - - double_buffering = 1; - - fb->version = sizeof(*fb); - fb->width = vi.xres; - fb->height = vi.yres; -#ifdef BOARD_HAS_JANKY_BACKBUFFER - fb->stride = fi.line_length/2; - fb->data = (GGLubyte*) (((unsigned long) bits) + vi.yres * fi.line_length); -#else - fb->stride = vi.xres_virtual; - fb->data = (GGLubyte*) (((unsigned long) bits) + vi.yres * fb->stride * PIXEL_SIZE); -#endif - fb->format = PIXEL_FORMAT; - if (!has_overlay) { - memset(fb->data, 0, vi.yres * fb->stride * PIXEL_SIZE); - } - -#ifdef PRINT_SCREENINFO - print_fb_var_screeninfo(); -#endif - - return fd; -} - -static void get_memory_surface(GGLSurface* ms) { - ms->version = sizeof(*ms); - ms->width = vi.xres; - ms->height = vi.yres; - ms->stride = vi.xres_virtual; - ms->data = malloc(vi.xres_virtual * vi.yres * PIXEL_SIZE); - ms->format = PIXEL_FORMAT; -} - -static void set_active_framebuffer(unsigned n) -{ - if (n > 1 || !double_buffering) return; - vi.yres_virtual = vi.yres * NUM_BUFFERS; - vi.yoffset = n * vi.yres; -// vi.bits_per_pixel = PIXEL_SIZE * 8; - if (ioctl(gr_fb_fd, FBIOPUT_VSCREENINFO, &vi) < 0) { - perror("active fb swap failed"); - } -} - -void gr_flip(void) -{ - if (-EINVAL == overlay_display_frame(gr_fb_fd, gr_mem_surface.data, - (fi.line_length * vi.yres))) { - GGLContext *gl = gr_context; - - /* swap front and back buffers */ - if (double_buffering) - gr_active_fb = (gr_active_fb + 1) & 1; - -#ifdef BOARD_HAS_FLIPPED_SCREEN - /* flip buffer 180 degrees for devices with physicaly inverted screens */ - unsigned int i; - unsigned int j; - for (i = 0; i < vi.yres; i++) { - for (j = 0; j < vi.xres; j++) { - memcpy(gr_framebuffer[gr_active_fb].data + (i * vi.xres_virtual + j) * PIXEL_SIZE, - gr_mem_surface.data + ((vi.yres - i - 1) * vi.xres_virtual + vi.xres - j - 1) * PIXEL_SIZE, PIXEL_SIZE); - } - } -#else - /* copy data from the in-memory surface to the buffer we're about - * to make active. */ - memcpy(gr_framebuffer[gr_active_fb].data, gr_mem_surface.data, - vi.xres_virtual * vi.yres * PIXEL_SIZE); -#endif - - /* inform the display driver */ - set_active_framebuffer(gr_active_fb); - } -} - -void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a) -{ - GGLContext *gl = gr_context; - GGLint color[4]; - color[0] = ((r << 8) | r) + 1; - color[1] = ((g << 8) | g) + 1; - color[2] = ((b << 8) | b) + 1; - color[3] = ((a << 8) | a) + 1; - gl->color4xv(gl, color); - - gr_is_curr_clr_opaque = (a == 255); -} - -int gr_measureEx(const char *s, void* font) -{ - GRFont* fnt = (GRFont*) font; - - if (!fnt) - return 0; - - return gr_ttf_measureEx(s, font); -} - -int gr_maxExW(const char *s, void* font, int max_width) -{ - GRFont* fnt = (GRFont*) font; - - if (!fnt) - return 0; - - return gr_ttf_maxExW(s, font, max_width); -} - -int gr_textEx(int x, int y, const char *s, void* pFont) -{ - GGLContext *gl = gr_context; - GRFont *font = (GRFont*) pFont; - - if (!font) - return 0; - - return gr_ttf_textExWH(gl, x, y, s, pFont, -1, -1); -} - -int gr_textEx_scaleW(int x, int y, const char *s, void* pFont, int max_width, int placement, int scale) -{ - GGLContext *gl = gr_context; - void* vfont = pFont; - GRFont *font = (GRFont*) pFont; - unsigned off; - unsigned cwidth; - int y_scale = 0, measured_width, measured_height, ret, new_height; - - if (!s || strlen(s) == 0 || !font) - return 0; - - measured_height = gr_ttf_getMaxFontHeight(font); - - if (scale) { - measured_width = gr_ttf_measureEx(s, vfont); - if (measured_width > max_width) { - // Adjust font size down until the text fits - void *new_font = gr_ttf_scaleFont(vfont, max_width, measured_width); - if (!new_font) { - printf("gr_textEx_scaleW new_font is NULL\n"); - return 0; - } - measured_width = gr_ttf_measureEx(s, new_font); - // These next 2 lines adjust the y point based on the new font's height - new_height = gr_ttf_getMaxFontHeight(new_font); - y_scale = (measured_height - new_height) / 2; - vfont = new_font; - } - } else - measured_width = gr_ttf_measureEx(s, vfont); - - int x_adj = measured_width; - if (measured_width > max_width) - x_adj = max_width; - - if (placement != TOP_LEFT && placement != BOTTOM_LEFT && placement != TEXT_ONLY_RIGHT) { - if (placement == CENTER || placement == CENTER_X_ONLY) - x -= (x_adj / 2); - else - x -= x_adj; - } - - if (placement != TOP_LEFT && placement != TOP_RIGHT) { - if (placement == CENTER || placement == TEXT_ONLY_RIGHT) - y -= (measured_height / 2); - else if (placement == BOTTOM_LEFT || placement == BOTTOM_RIGHT) - y -= measured_height; - } - return gr_ttf_textExWH(gl, x, y + y_scale, s, vfont, measured_width + x, -1); -} - -int gr_textExW(int x, int y, const char *s, void* pFont, int max_width) -{ - GGLContext *gl = gr_context; - GRFont *font = (GRFont*) pFont; - - if (!font) - return 0; - - return gr_ttf_textExWH(gl, x, y, s, pFont, max_width, -1); -} - -int gr_textExWH(int x, int y, const char *s, void* pFont, int max_width, int max_height) -{ - GGLContext *gl = gr_context; - GRFont *font = (GRFont*) pFont; - - if (!font) - return 0; - - return gr_ttf_textExWH(gl, x, y, s, pFont, max_width, max_height); -} - -void gr_clip(int x, int y, int w, int h) -{ - GGLContext *gl = gr_context; - gl->scissor(gl, x, y, w, h); - gl->enable(gl, GGL_SCISSOR_TEST); -} - -void gr_noclip() -{ - GGLContext *gl = gr_context; - gl->scissor(gl, 0, 0, gr_fb_width(), gr_fb_height()); - gl->disable(gl, GGL_SCISSOR_TEST); -} - -void gr_fill(int x, int y, int w, int h) -{ - GGLContext *gl = gr_context; - - if(gr_is_curr_clr_opaque) - gl->disable(gl, GGL_BLEND); - - gl->recti(gl, x, y, x + w, y + h); - - if(gr_is_curr_clr_opaque) - gl->enable(gl, GGL_BLEND); -} - -void gr_line(int x0, int y0, int x1, int y1, int width) -{ - GGLContext *gl = gr_context; - - if(gr_is_curr_clr_opaque) - gl->disable(gl, GGL_BLEND); - - const int coords0[2] = { x0 << 4, y0 << 4 }; - const int coords1[2] = { x1 << 4, y1 << 4 }; - gl->linex(gl, coords0, coords1, width << 4); - - if(gr_is_curr_clr_opaque) - gl->enable(gl, GGL_BLEND); -} - -gr_surface gr_render_circle(int radius, unsigned char r, unsigned char g, unsigned char b, unsigned char a) -{ - int rx, ry; - GGLSurface *surface; - const int diameter = radius*2 + 1; - const int radius_check = radius*radius + radius*0.8; - const uint32_t px = (a << 24) | (b << 16) | (g << 8) | r; - uint32_t *data; - - surface = malloc(sizeof(GGLSurface)); - memset(surface, 0, sizeof(GGLSurface)); - - data = malloc(diameter * diameter * 4); - memset(data, 0, diameter * diameter * 4); - - surface->version = sizeof(surface); - surface->width = diameter; - surface->height = diameter; - surface->stride = diameter; - surface->data = (GGLubyte*)data; - surface->format = GGL_PIXEL_FORMAT_RGBA_8888; - - for(ry = -radius; ry <= radius; ++ry) - for(rx = -radius; rx <= radius; ++rx) - if(rx*rx+ry*ry <= radius_check) - *(data + diameter*(radius + ry) + (radius+rx)) = px; - - return surface; -} - -void gr_blit(gr_surface source, int sx, int sy, int w, int h, int dx, int dy) { - if (gr_context == NULL) { - return; - } - - GGLContext *gl = gr_context; - GGLSurface *surface = (GGLSurface*)source; - - if(surface->format == GGL_PIXEL_FORMAT_RGBX_8888) - gl->disable(gl, GGL_BLEND); - - gl->bindTexture(gl, surface); - gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE); - gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE); - gl->texGeni(gl, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE); - gl->enable(gl, GGL_TEXTURE_2D); - gl->texCoord2i(gl, sx - dx, sy - dy); - gl->recti(gl, dx, dy, dx + w, dy + h); - gl->disable(gl, GGL_TEXTURE_2D); - - if(surface->format == GGL_PIXEL_FORMAT_RGBX_8888) - gl->enable(gl, GGL_BLEND); -} - -unsigned int gr_get_width(gr_surface surface) { - if (surface == NULL) { - return 0; - } - return ((GGLSurface*) surface)->width; -} - -unsigned int gr_get_height(gr_surface surface) { - if (surface == NULL) { - return 0; - } - return ((GGLSurface*) surface)->height; -} - -int gr_getMaxFontHeight(void *font) -{ - GRFont *fnt = (GRFont*) font; - - if (!fnt) - return -1; - - return gr_ttf_getMaxFontHeight(font); -} - -int gr_init(void) -{ - gglInit(&gr_context); - GGLContext *gl = gr_context; - - gr_vt_fd = open("/dev/tty0", O_RDWR | O_SYNC); - if (gr_vt_fd < 0) { - // This is non-fatal; post-Cupcake kernels don't have tty0. - } else if (ioctl(gr_vt_fd, KDSETMODE, (void*) KD_GRAPHICS)) { - // However, if we do open tty0, we expect the ioctl to work. - perror("failed KDSETMODE to KD_GRAPHICS on tty0"); - gr_exit(); - return -1; - } - - gr_fb_fd = get_framebuffer(gr_framebuffer); - if (gr_fb_fd < 0) { - perror("Unable to get framebuffer.\n"); - gr_exit(); - return -1; - } - - get_memory_surface(&gr_mem_surface); - - fprintf(stderr, "framebuffer: fd %d (%d x %d)\n", - gr_fb_fd, gr_framebuffer[0].width, gr_framebuffer[0].height); - - /* start with 0 as front (displayed) and 1 as back (drawing) */ - gr_active_fb = 0; - if (!has_overlay) - set_active_framebuffer(0); - gl->colorBuffer(gl, &gr_mem_surface); - - gl->activeTexture(gl, 0); - gl->enable(gl, GGL_BLEND); - gl->blendFunc(gl, GGL_SRC_ALPHA, GGL_ONE_MINUS_SRC_ALPHA); - -#ifdef TW_SCREEN_BLANK_ON_BOOT - printf("TW_SCREEN_BLANK_ON_BOOT := true\n"); - gr_fb_blank(true); - gr_fb_blank(false); -#endif - - if (!alloc_ion_mem(fi.line_length * vi.yres)) - allocate_overlay(gr_fb_fd, gr_framebuffer); - - return 0; -} - -void gr_exit(void) -{ - free_overlay(gr_fb_fd); - free_ion_mem(); - - close(gr_fb_fd); - gr_fb_fd = -1; - - free(gr_mem_surface.data); - - ioctl(gr_vt_fd, KDSETMODE, (void*) KD_TEXT); - close(gr_vt_fd); - gr_vt_fd = -1; -} - -int gr_fb_width(void) -{ - return gr_framebuffer[0].width; -} - -int gr_fb_height(void) -{ - return gr_framebuffer[0].height; -} - -gr_pixel *gr_fb_data(void) -{ - return (unsigned short *) gr_mem_surface.data; -} - -int gr_fb_blank(int blank) -{ - int ret; - //if (blank) - //free_overlay(gr_fb_fd); - - ret = ioctl(gr_fb_fd, FBIOBLANK, blank ? FB_BLANK_POWERDOWN : FB_BLANK_UNBLANK); - if (ret < 0) - perror("ioctl(): blank"); - - //if (!blank) - //allocate_overlay(gr_fb_fd, gr_framebuffer); - return ret; -} - -int gr_get_surface(gr_surface* surface) -{ - GGLSurface* ms = malloc(sizeof(GGLSurface)); - if (!ms) return -1; - - // Allocate the data - get_memory_surface(ms); - - // Now, copy the data - memcpy(ms->data, gr_mem_surface.data, vi.xres * vi.yres * vi.bits_per_pixel / 8); - - *surface = (gr_surface*) ms; - return 0; -} - -int gr_free_surface(gr_surface surface) -{ - if (!surface) - return -1; - - GGLSurface* ms = (GGLSurface*) surface; - free(ms->data); - free(ms); - return 0; -} - -void gr_write_frame_to_file(int fd) -{ - write(fd, gr_mem_surface.data, vi.xres * vi.yres * vi.bits_per_pixel / 8); -} -- cgit v1.2.3