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author | Ethan Yonker <dees_troy@teamw.in> | 2015-12-28 21:54:50 +0100 |
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committer | Ethan Yonker <dees_troy@teamw.in> | 2016-01-27 17:53:13 +0100 |
commit | fbb4353a247157d32208f8f133cd1ee42f4fbc49 (patch) | |
tree | 6f819fbdd21f2adef4f7ba4a5b4d02054cc02f29 /minuitwrp/resources.c | |
parent | Adopted Storage support (diff) | |
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Diffstat (limited to 'minuitwrp/resources.c')
-rw-r--r-- | minuitwrp/resources.c | 443 |
1 files changed, 0 insertions, 443 deletions
diff --git a/minuitwrp/resources.c b/minuitwrp/resources.c deleted file mode 100644 index 0e124608e..000000000 --- a/minuitwrp/resources.c +++ /dev/null @@ -1,443 +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 <stdlib.h> -#include <unistd.h> - -#include <fcntl.h> -#include <stdio.h> - -#include <sys/ioctl.h> -#include <sys/mman.h> -#include <sys/types.h> -#include <string.h> - -#include <linux/fb.h> -#include <linux/kd.h> - -#include <pixelflinger/pixelflinger.h> - -#include <png.h> -#include "jpeglib.h" - -#include "minui.h" - -// libpng gives "undefined reference to 'pow'" errors, and I have no -// idea how to convince the build system to link with -lm. We don't -// need this functionality (it's used for gamma adjustment) so provide -// a dummy implementation to satisfy the linker. -double pow(double x, double y) { - return x; -} - -#define SURFACE_DATA_ALIGNMENT 8 - -static GGLSurface* malloc_surface(size_t data_size) { - unsigned char* temp = malloc(sizeof(GGLSurface) + data_size + SURFACE_DATA_ALIGNMENT); - if (temp == NULL) return NULL; - GGLSurface* surface = (GGLSurface*) temp; - surface->data = temp + sizeof(GGLSurface) + - (SURFACE_DATA_ALIGNMENT - (sizeof(GGLSurface) % SURFACE_DATA_ALIGNMENT)); - return surface; -} - -static int open_png(const char* name, png_structp* png_ptr, png_infop* info_ptr, - png_uint_32* width, png_uint_32* height, png_byte* channels, FILE** fpp) { - char resPath[256]; - unsigned char header[8]; - int result = 0; - - snprintf(resPath, sizeof(resPath)-1, TWRES "images/%s.png", name); - printf("open_png %s\n", resPath); - resPath[sizeof(resPath)-1] = '\0'; - FILE* fp = fopen(resPath, "rb"); - if (fp == NULL) { - fp = fopen(name, "rb"); - if (fp == NULL) { - result = -1; - goto exit; - } - } - - size_t bytesRead = fread(header, 1, sizeof(header), fp); - if (bytesRead != sizeof(header)) { - result = -2; - goto exit; - } - - if (png_sig_cmp(header, 0, sizeof(header))) { - result = -3; - goto exit; - } - - *png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); - if (!*png_ptr) { - result = -4; - goto exit; - } - - *info_ptr = png_create_info_struct(*png_ptr); - if (!*info_ptr) { - result = -5; - goto exit; - } - - if (setjmp(png_jmpbuf(*png_ptr))) { - result = -6; - goto exit; - } - - png_init_io(*png_ptr, fp); - png_set_sig_bytes(*png_ptr, sizeof(header)); - png_read_info(*png_ptr, *info_ptr); - - int color_type, bit_depth; - png_get_IHDR(*png_ptr, *info_ptr, width, height, &bit_depth, - &color_type, NULL, NULL, NULL); - - *channels = png_get_channels(*png_ptr, *info_ptr); - - /*if (bit_depth == 8 && *channels == 3 && color_type == PNG_COLOR_TYPE_RGB) { - // 8-bit RGB images: great, nothing to do. - } else if (bit_depth <= 8 && *channels == 1 && color_type == PNG_COLOR_TYPE_GRAY) { - // 1-, 2-, 4-, or 8-bit gray images: expand to 8-bit gray. - png_set_expand_gray_1_2_4_to_8(*png_ptr); - } else if (bit_depth <= 8 && *channels == 1 && color_type == PNG_COLOR_TYPE_PALETTE) { - // paletted images: expand to 8-bit RGB. Note that we DON'T - // currently expand the tRNS chunk (if any) to an alpha - // channel, because minui doesn't support alpha channels in - // general. - png_set_palette_to_rgb(*png_ptr); - *channels = 3; - } else { - fprintf(stderr, "minui doesn't support PNG depth %d channels %d color_type %d\n", - bit_depth, *channels, color_type); - result = -7; - goto exit; - }*/ - if (color_type == PNG_COLOR_TYPE_PALETTE) { - png_set_palette_to_rgb(png_ptr); - } - - *fpp = fp; - return result; - - exit: - if (result < 0) { - png_destroy_read_struct(png_ptr, info_ptr, NULL); - } - if (fp != NULL) { - fclose(fp); - } - - return result; -} - -// "display" surfaces are transformed into the framebuffer's required -// pixel format (currently only RGBX is supported) at load time, so -// gr_blit() can be nothing more than a memcpy() for each row. The -// next two functions are the only ones that know anything about the -// framebuffer pixel format; they need to be modified if the -// framebuffer format changes (but nothing else should). - -// Allocate and return a gr_surface sufficient for storing an image of -// the indicated size in the framebuffer pixel format. -static GGLSurface* init_display_surface(png_uint_32 width, png_uint_32 height) { - GGLSurface* surface; - - surface = (GGLSurface*) malloc_surface(width * height * 4); - if (surface == NULL) return NULL; - - surface->version = sizeof(GGLSurface); - surface->width = width; - surface->height = height; - surface->stride = width; - - return surface; -} - -// Copy 'input_row' to 'output_row', transforming it to the -// framebuffer pixel format. The input format depends on the value of -// 'channels': -// -// 1 - input is 8-bit grayscale -// 3 - input is 24-bit RGB -// 4 - input is 32-bit RGBA/RGBX -// -// 'width' is the number of pixels in the row. -static void transform_rgb_to_draw(unsigned char* input_row, - unsigned char* output_row, - int channels, int width) { - int x; - unsigned char* ip = input_row; - unsigned char* op = output_row; - - switch (channels) { - case 1: - // expand gray level to RGBX - for (x = 0; x < width; ++x) { - *op++ = *ip; - *op++ = *ip; - *op++ = *ip; - *op++ = 0xff; - ip++; - } - break; - - case 3: - // expand RGBA to RGBX - for (x = 0; x < width; ++x) { - *op++ = *ip++; - *op++ = *ip++; - *op++ = *ip++; - *op++ = 0xff; - } - break; - - case 4: - // copy RGBA to RGBX - memcpy(output_row, input_row, width*4); - break; - } -} - -int res_create_surface_png(const char* name, gr_surface* pSurface) { - GGLSurface* surface = NULL; - int result = 0; - png_structp png_ptr = NULL; - png_infop info_ptr = NULL; - png_uint_32 width, height; - png_byte channels; - FILE* fp; - - *pSurface = NULL; - - result = open_png(name, &png_ptr, &info_ptr, &width, &height, &channels, &fp); - if (result < 0) return result; - - surface = init_display_surface(width, height); - if (surface == NULL) { - result = -8; - goto exit; - } - - unsigned char* p_row = malloc(width * 4); - unsigned int y; - for (y = 0; y < height; ++y) { - png_read_row(png_ptr, p_row, NULL); - transform_rgb_to_draw(p_row, surface->data + y * width * 4, channels, width); - } - free(p_row); - - if (channels == 3) - surface->format = GGL_PIXEL_FORMAT_RGBX_8888; - else - surface->format = GGL_PIXEL_FORMAT_RGBA_8888; - - *pSurface = (gr_surface) surface; - - exit: - fclose(fp); - png_destroy_read_struct(&png_ptr, &info_ptr, NULL); - if (result < 0 && surface != NULL) free(surface); - return result; -} - -int res_create_surface_jpg(const char* name, gr_surface* pSurface) { - GGLSurface* surface = NULL; - int result = 0; - struct jpeg_decompress_struct cinfo; - struct jpeg_error_mgr jerr; - - FILE* fp = fopen(name, "rb"); - if (fp == NULL) { - char resPath[256]; - - snprintf(resPath, sizeof(resPath)-1, TWRES "images/%s", name); - resPath[sizeof(resPath)-1] = '\0'; - fp = fopen(resPath, "rb"); - if (fp == NULL) { - result = -1; - goto exit; - } - } - - cinfo.err = jpeg_std_error(&jerr); - jpeg_create_decompress(&cinfo); - - /* Specify data source for decompression */ - jpeg_stdio_src(&cinfo, fp); - - /* Read file header, set default decompression parameters */ - if (jpeg_read_header(&cinfo, TRUE) != JPEG_HEADER_OK) - goto exit; - - /* Start decompressor */ - (void) jpeg_start_decompress(&cinfo); - - size_t width = cinfo.image_width; - size_t height = cinfo.image_height; - size_t stride = 4 * width; - size_t pixelSize = stride * height; - - surface = malloc(sizeof(GGLSurface) + pixelSize); - if (surface == NULL) { - result = -8; - goto exit; - } - - unsigned char* pData = (unsigned char*) (surface + 1); - surface->version = sizeof(GGLSurface); - surface->width = width; - surface->height = height; - surface->stride = width; /* Yes, pixels, not bytes */ - surface->data = pData; - surface->format = GGL_PIXEL_FORMAT_RGBX_8888; - - int y; - for (y = 0; y < (int) height; ++y) { - unsigned char* pRow = pData + y * stride; - jpeg_read_scanlines(&cinfo, &pRow, 1); - - int x; - for(x = width - 1; x >= 0; x--) { - int sx = x * 3; - int dx = x * 4; - unsigned char r = pRow[sx]; - unsigned char g = pRow[sx + 1]; - unsigned char b = pRow[sx + 2]; - unsigned char a = 0xff; - pRow[dx ] = r; // r - pRow[dx + 1] = g; // g - pRow[dx + 2] = b; // b - pRow[dx + 3] = a; - } - } - *pSurface = (gr_surface) surface; - -exit: - if (fp != NULL) - { - if (surface) - { - (void) jpeg_finish_decompress(&cinfo); - if (result < 0) - { - free(surface); - } - } - jpeg_destroy_decompress(&cinfo); - fclose(fp); - } - return result; -} - -int res_create_surface(const char* name, gr_surface* pSurface) { - int ret; - - if (!name) return -1; - - if (strlen(name) > 4 && strcmp(name + strlen(name) - 4, ".jpg") == 0) - return res_create_surface_jpg(name,pSurface); - - ret = res_create_surface_png(name,pSurface); - if (ret < 0) - ret = res_create_surface_jpg(name,pSurface); - - return ret; -} - -void res_free_surface(gr_surface surface) { - GGLSurface* pSurface = (GGLSurface*) surface; - if (pSurface) { - free(pSurface); - } -} - -// Scale image function -int res_scale_surface(gr_surface source, gr_surface* destination, float scale_w, float scale_h) { - GGLContext *gl = NULL; - GGLSurface* sc_mem_surface = NULL; - *destination = NULL; - GGLSurface *surface = (GGLSurface*)source; - int w = gr_get_width(source), h = gr_get_height(source); - int sx = 0, sy = 0, dx = 0, dy = 0; - float dw = (float)w * scale_w; - float dh = (float)h * scale_h; - - // Create a new surface that is the appropriate size - sc_mem_surface = init_display_surface((int)dw, (int)dh); - if (!sc_mem_surface) { - printf("gr_scale_surface failed to init_display_surface\n"); - return -1; - } - sc_mem_surface->format = surface->format; - - // Initialize the context - gglInit(&gl); - gl->colorBuffer(gl, sc_mem_surface); - gl->activeTexture(gl, 0); - - // Enable or disable blending based on source surface format - if (surface->format == GGL_PIXEL_FORMAT_RGBX_8888) { - gl->disable(gl, GGL_BLEND); - } else { - gl->enable(gl, GGL_BLEND); - gl->blendFunc(gl, GGL_ONE, GGL_ZERO); - } - - // Bind our source surface to the context - gl->bindTexture(gl, surface); - - // Deal with the scaling - gl->texParameteri(gl, GGL_TEXTURE_2D, GGL_TEXTURE_MIN_FILTER, GGL_LINEAR); - gl->texParameteri(gl, GGL_TEXTURE_2D, GGL_TEXTURE_MAG_FILTER, GGL_LINEAR); - gl->texParameteri(gl, GGL_TEXTURE_2D, GGL_TEXTURE_WRAP_S, GGL_CLAMP); - gl->texParameteri(gl, GGL_TEXTURE_2D, GGL_TEXTURE_WRAP_T, GGL_CLAMP); - gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE); - gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_AUTOMATIC); - gl->texGeni(gl, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_AUTOMATIC); - gl->enable(gl, GGL_TEXTURE_2D); - - int32_t grad[8]; - memset(grad, 0, sizeof(grad)); - // s, dsdx, dsdy, scale, t, dtdx, dtdy, tscale <- this is wrong! - // This api uses block floating-point for S and T texture coordinates. - // All values are given in 16.16, scaled by 'scale'. In other words, - // set scale to 0, for 16.16 values. - - // s, dsdx, dsdy, t, dtdx, dtdy, sscale, tscale - float dsdx = (float)w / dw; - float dtdy = (float)h / dh; - grad[0] = ((float)sx - (dsdx * dx)) * 65536; - grad[1] = dsdx * 65536; - grad[3] = ((float)sy - (dtdy * dy)) * 65536; - grad[5] = dtdy * 65536; -// printf("blit: w=%d h=%d dx=%d dy=%d dw=%f dh=%f dsdx=%f dtdy=%f s0=%x dsdx=%x t0=%x dtdy=%x\n", -// w, h, dx, dy, dw, dh, dsdx, dtdy, grad[0], grad[1], grad[3], grad[5]); - gl->texCoordGradScale8xv(gl, 0 /*tmu*/, grad); - - // draw / scale the source surface to our target context - gl->recti(gl, dx, dy, dx + dw, dy + dh); - gglUninit(gl); - gl = NULL; - // put the scaled surface in our destination - *destination = (gr_surface*) sc_mem_surface; - // free memory used in the source - res_free_surface(source); - source = NULL; - return 0; -} |