From 8b00d67febf133e89f6a0bfabc41feed555dc4a9 Mon Sep 17 00:00:00 2001 From: chai Date: Sat, 12 Jan 2019 21:48:33 +0800 Subject: =?UTF-8?q?*=E5=8E=BB=E6=8E=89=E6=96=87=E4=BB=B6=E5=89=8D=E7=BC=80?= =?UTF-8?q?je=5F?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- src/libjin/graphics/canvas.cpp | 58 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 src/libjin/graphics/canvas.cpp (limited to 'src/libjin/graphics/canvas.cpp') diff --git a/src/libjin/graphics/canvas.cpp b/src/libjin/graphics/canvas.cpp new file mode 100644 index 0000000..db02110 --- /dev/null +++ b/src/libjin/graphics/canvas.cpp @@ -0,0 +1,58 @@ +#include "../core/configuration.h" +#if defined(jin_graphics) + +#include "../utils/macros.h" +#include "canvas.h" +#include "window.h" + +namespace JinEngine +{ + namespace Graphics + { + + Canvas::Canvas(GLuint n) + : fbo(n) + { + ++gl.getStats().canvases; + } + + Canvas::Canvas(int w, int h) + : Graphic(w, h) + { + GLint current_fbo; + glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, ¤t_fbo); + + // Generate a new render buffer object. + fbo = gl.genFrameBuffer(); + gl.bindFrameBuffer(fbo); + + // Render texture. + GLuint texture = getGLTexture(); + gl.bindTexture2D(texture); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + gl.texImage(GL_RGBA8, w, h, GL_RGBA, GL_UNSIGNED_BYTE, NULL); + + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0); + GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER); + + // Unbind framebuffer + gl.bindFrameBuffer(current_fbo); + + ++gl.getStats().canvases; + } + + Canvas::~Canvas() + { + --gl.getStats().canvases; + } + + bool Canvas::isBinded(const Canvas* cvs) + { + return gl.getCanvas() == cvs; + } + + } // namespace Graphics +} // namespace JinEngine + +#endif // defined(jin_graphics) \ No newline at end of file -- cgit v1.1-26-g67d0