diff options
Diffstat (limited to '')
| -rw-r--r-- | minuitwrp/graphics_utils.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/minuitwrp/graphics_utils.c b/minuitwrp/graphics_utils.c index 6083c7599..ea1182dd9 100644 --- a/minuitwrp/graphics_utils.c +++ b/minuitwrp/graphics_utils.c @@ -28,12 +28,12 @@ GGLSurface gr_mem_surface; int gr_save_screenshot(const char *dest) { uint32_t y, stride_bytes; - int res = -1; + volatile int res = -1; GGLContext *gl = NULL; GGLSurface surface; uint8_t * volatile img_data = NULL; uint8_t *ptr; - FILE *fp = NULL; + FILE * volatile fp = NULL; png_structp png_ptr = NULL; png_infop info_ptr = NULL; @@ -41,18 +41,21 @@ int gr_save_screenshot(const char *dest) if(!fp) goto exit; - img_data = malloc(vi.xres * vi.yres * 3); + img_data = malloc(gr_mem_surface.stride * vi.yres * 4); surface.version = sizeof(surface); surface.width = gr_mem_surface.width; surface.height = gr_mem_surface.height; - surface.stride = gr_mem_surface.width; + surface.stride = gr_mem_surface.stride; surface.data = img_data; - surface.format = GGL_PIXEL_FORMAT_RGB_888; + surface.format = GGL_PIXEL_FORMAT_RGBA_8888; gglInit(&gl); gl->colorBuffer(gl, &surface); gl->activeTexture(gl, 0); + if(gr_mem_surface.format == GGL_PIXEL_FORMAT_RGBX_8888) + gl->disable(gl, GGL_BLEND); + gl->bindTexture(gl, &gr_mem_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); @@ -81,8 +84,11 @@ int gr_save_screenshot(const char *dest) PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); png_write_info(png_ptr, info_ptr); + // To remove the alpha channel for PNG_COLOR_TYPE_RGB format, + png_set_filler(png_ptr, 0, PNG_FILLER_AFTER); + ptr = img_data; - stride_bytes = surface.width*3; + stride_bytes = surface.stride*4; for(y = 0; y < surface.height; ++y) { png_write_row(png_ptr, ptr); |