03fd6c56fe
* Like in android - press power+volume down, screenshots are saved in /sdcard/Pictures/Screenshots (if /sdcard is mounted) or /tmp Change-Id: Iaefa15b11a1d5fdfac57d77388db1621f378a8d4 Signed-off-by: Vojtech Bocek <vbocek@gmail.com>
107 lines
2.9 KiB
C
107 lines
2.9 KiB
C
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <png.h>
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#include <pixelflinger/pixelflinger.h>
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#include <linux/fb.h>
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#include "minui.h"
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struct fb_var_screeninfo vi;
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GGLSurface gr_mem_surface;
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int gr_save_screenshot(const char *dest)
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{
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uint32_t y, stride_bytes;
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int res = -1;
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GGLContext *gl = NULL;
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GGLSurface surface;
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uint8_t * volatile img_data = NULL;
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uint8_t *ptr;
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FILE *fp = NULL;
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png_structp png_ptr = NULL;
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png_infop info_ptr = NULL;
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fp = fopen(dest, "wb");
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if(!fp)
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goto exit;
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img_data = malloc(vi.xres * vi.yres * 3);
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surface.version = sizeof(surface);
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surface.width = gr_mem_surface.width;
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surface.height = gr_mem_surface.height;
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surface.stride = gr_mem_surface.width;
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surface.data = img_data;
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surface.format = GGL_PIXEL_FORMAT_RGB_888;
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gglInit(&gl);
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gl->colorBuffer(gl, &surface);
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gl->activeTexture(gl, 0);
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gl->bindTexture(gl, &gr_mem_surface);
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gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
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gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
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gl->texGeni(gl, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
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gl->enable(gl, GGL_TEXTURE_2D);
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gl->texCoord2i(gl, 0, 0);
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gl->recti(gl, 0, 0, gr_mem_surface.width, gr_mem_surface.height);
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gglUninit(gl);
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gl = NULL;
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png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
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if (!png_ptr)
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goto exit;
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info_ptr = png_create_info_struct(png_ptr);
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if (info_ptr == NULL)
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goto exit;
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if (setjmp(png_jmpbuf(png_ptr)))
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goto exit;
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png_init_io(png_ptr, fp);
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png_set_IHDR(png_ptr, info_ptr, surface.width, surface.height,
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8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
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PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
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png_write_info(png_ptr, info_ptr);
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ptr = img_data;
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stride_bytes = surface.width*3;
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for(y = 0; y < surface.height; ++y)
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{
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png_write_row(png_ptr, ptr);
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ptr += stride_bytes;
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}
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png_write_end(png_ptr, NULL);
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res = 0;
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exit:
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if(info_ptr)
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png_free_data(png_ptr, info_ptr, PNG_FREE_ALL, -1);
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if(png_ptr)
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png_destroy_write_struct(&png_ptr, (png_infopp)NULL);
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if(gl)
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gglUninit(gl);
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if(img_data)
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free(img_data);
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if(fp)
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fclose(fp);
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return res;
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}
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