diff options
author | don bright <hugh.m.bright@gmail.com> | 2013-01-26 05:52:06 (GMT) |
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committer | don bright <hugh.m.bright@gmail.com> | 2013-01-26 05:52:06 (GMT) |
commit | 544a8e5b799f5dd0a35d650c00db10074104650a (patch) | |
tree | 0651f5efa1422aaf166a303c1210a92b23850681 /src/OffscreenContextWGL.cc | |
parent | 395628cb4ef7f8559c667af22fb273e21e4a5ad8 (diff) |
refactor to reduce duplicate code
Diffstat (limited to 'src/OffscreenContextWGL.cc')
-rw-r--r-- | src/OffscreenContextWGL.cc | 42 |
1 files changed, 4 insertions, 38 deletions
diff --git a/src/OffscreenContextWGL.cc b/src/OffscreenContextWGL.cc index b2b0e2a..b892c24 100644 --- a/src/OffscreenContextWGL.cc +++ b/src/OffscreenContextWGL.cc @@ -38,6 +38,8 @@ struct OffscreenContext fbo_t *fbo; }; +#include "OffscreenContextAll.hpp" + void offscreen_context_init(OffscreenContext &ctx, int width, int height) { ctx.window = (HWND)NULL; @@ -214,46 +216,10 @@ bool teardown_offscreen_context(OffscreenContext *ctx) return false; } -/*! - Capture framebuffer from OpenGL and write it to the given filename as PNG. -*/ -bool save_framebuffer(OffscreenContext *ctx, const char *filename) -{ - std::ofstream fstream(filename); - if (!fstream.is_open()) { - PRINTB("Can't open file \"%s\" for writing", filename); - return false; - } else { - save_framebuffer(ctx, fstream); - fstream.close(); - } - return true; -} - -/*! - Capture framebuffer from OpenGL and write it to the given filename as PNG. -*/ bool save_framebuffer(OffscreenContext *ctx, std::ostream &output) { + if (!ctx) return false; wglSwapLayerBuffers( ctx->dev_context, WGL_SWAP_MAIN_PLANE ); - if (!ctx || !filename) return false; - int samplesPerPixel = 4; // R, G, B and A - vector<GLubyte> pixels(ctx->width * ctx->height * samplesPerPixel); - glReadPixels(0, 0, ctx->width, ctx->height, GL_RGBA, GL_UNSIGNED_BYTE, &pixels[0]); - - // Flip it vertically - images read from OpenGL buffers are upside-down - int rowBytes = samplesPerPixel * ctx->width; - unsigned char *flippedBuffer = (unsigned char *)malloc(rowBytes * ctx->height); - if (!flippedBuffer) { - std::cerr << "Unable to allocate flipped buffer for corrected image."; - return 1; - } - flip_image(&pixels[0], flippedBuffer, samplesPerPixel, ctx->width, ctx->height); - - bool writeok = write_png(output, flippedBuffer, ctx->width, ctx->height); - - free(flippedBuffer); - - return writeok; + return save_framebuffer_common( ctx, output ); } |