diff options
| -rw-r--r-- | src/library_gl.js | 16 | ||||
| -rw-r--r-- | system/lib/gl.c | 1 |
2 files changed, 16 insertions, 1 deletions
diff --git a/src/library_gl.js b/src/library_gl.js index ffcbef62..a4d560e7 100644 --- a/src/library_gl.js +++ b/src/library_gl.js @@ -698,6 +698,8 @@ var LibraryGL = { // Extension available from Firefox 25 and WebKit GL.vaoExt = Module.ctx.getExtension('OES_vertex_array_object'); + GL.drawBuffersExt = Module.ctx.getExtension('WEBGL_draw_buffers'); + // These are the 'safe' feature-enabling extensions that don't add any performance impact related to e.g. debugging, and // should be enabled by default so that client GLES2/GL code will not need to go through extra hoops to get its stuff working. // As new extensions are ratified at http://www.khronos.org/registry/webgl/extensions/ , feel free to add your new extensions @@ -5423,7 +5425,19 @@ var LibraryGL = { glVertexAttribDivisorARB: 'glVertexAttribDivisor', glDrawArraysInstancedARB: 'glDrawArraysInstanced', glDrawElementsInstancedARB: 'glDrawElementsInstanced', - + + + glDrawBuffers__sig: 'vii', + glDrawBuffers: function(n, bufs) { +#if GL_ASSERTIONS + assert(GL.drawBuffersExt, 'Must have WEBGL_draw_buffers extension to use drawBuffers'); +#endif + var bufArray = []; + for (var i = 0; i < n; i++) + bufArray.push({{{ makeGetValue('bufs', 'i*4', 'i32') }}}); + + GL.drawBuffersExt.drawBuffersWEBGL(bufArray); + }, // signatures of simple pass-through functions, see later glActiveTexture__sig: 'vi', diff --git a/system/lib/gl.c b/system/lib/gl.c index bbc77437..33e9fd47 100644 --- a/system/lib/gl.c +++ b/system/lib/gl.c @@ -1724,6 +1724,7 @@ void* emscripten_GetProcAddress(const char *name_) { else if (!strcmp(name, "glVertexAttrib4f")) return emscripten_glVertexAttrib4f; else if (!strcmp(name, "glCopyTexImage2D")) return emscripten_glCopyTexImage2D; else if (!strcmp(name, "glCopyTexSubImage2D")) return emscripten_glCopyTexSubImage2D; + else if (!strcmp(name, "glDrawBuffers")) return emscripten_glDrawBuffers; fprintf(stderr, "bad name in getProcAddress: %s | %s\n", name_, name); return 0; |