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WebGLRenderer resource creation

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This commit is contained in:
Felipe Alfonso 2018-01-19 21:37:52 -03:00
parent e98c6b336a
commit 1da31fb2a5
1 changed files with 114 additions and 6 deletions
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118
src/renderer/webgl/WebGLRenderer.js
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@ -257,30 +257,138 @@ var WebGLRenderer = new Class({
},
/* Renderer Resource Creation Functions */
createTexture2D: function ()
createTexture2D: function (mipLevel, minFilter, magFilter, wrapT, wrapS, format, pixels, width, height, pma)
{
var gl = this.gl;
var texture = gl.createTexture();
pma = (pma === undefined || pma === null) ? true : pma;
this.setTexture2D(texture, 0);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, minFilter);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, magFilter);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, wrapS);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, wrapT);
gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, pma);
if (pixels === null || pixels === undefined)
{
gl.texImage2D(gl.TEXTURE_2D, mipLevel, format, width, height, 0, format, gl.UNSIGNED_BYTE, null);
}
else
{
gl.texImage2D(gl.TEXTURE_2D, mipLevel, format, format, gl.UNSIGNED_BYTE, pixels);
width = pixels.width;
height = pixels.height;
}
this.setTexture2D(null, 0);
texture.isAlphaPremultiplied = pma;
texture.isRenderTexture = false;
texture.width = width;
texture.height = height;
return texture;
},
createFramebuffer: function ()
createFramebuffer: function (width, height, renderTexture, addDepthStencilBuffer)
{
var gl = this.gl;
var framebuffer = gl.createFramebuffer();
var complete = 0;
this.setFramebuffer(framebuffer);
if (addDepthStencilBuffer)
{
var depthStencilBuffer = gl.createRenderbuffer();
gl.bindRenderbuffer(gl.RENDERBUFFER, depthStencilBuffer);
gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_STENCIL, width, height);
gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_STENCIL_ATTACHMENT, gl.RENDERBUFFER, depthStencilBuffer);
}
renderTexture.isRenderTexture = true;
renderTexture.isAlphaPremultiplied = false;
gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, renderTexture, 0);
complete = gl.checkFramebufferStatus(gl.FRAMEBUFFER);
if (complete !== gl.FRAMEBUFFER_COMPLETE)
{
var errors = {
36054: 'Incomplete Attachment',
36055: 'Missing Attachment',
36057: 'Incomplete Dimensions',
36061: 'Framebuffer Unsupported'
};
throw new Error('Framebuffer incomplete. Framebuffer status: ' + errors[complete]);
}
framebuffer.renderTexture = renderTexture;
this.setFramebuffer(null);
return framebuffer;
},
createProgram: function ()
createProgram: function (vertexShader, fragmentShader)
{
var gl = this.gl;
var program = gl.createProgram();
var vs = gl.createShader(gl.VERTEX_SHADER);
var fs = gl.createShader(gl.FRAGMENT_SHADER);
gl.shaderSource(vs, vertexShader);
gl.shaderSource(fs, fragmentShader);
gl.compileShader(vs);
gl.compileShader(fs);
if (!gl.getShaderParameter(vs, gl.COMPILE_STATUS))
{
return new Error('Failed to compile Vertex Shader:\n' + gl.getShaderInfoLog(vs));
}
if (!gl.getShaderParameter(fs, gl.COMPILE_STATUS))
{
return new Error('Failed to compile Fragment Shader:\n' + gl.getShaderInfoLog(fs));
}
gl.attachShader(program, vs);
gl.attachShader(program, fs);
gl.linkProgram(program);
if (!gl.getProgramParameter(program, gl.LINK_STATUS))
{
return new Error('Failed to link program:\n' + gl.getProgramInfoLog(program));
}
return program;
},
createVertexBuffer: function ()
createVertexBuffer: function (initialDataOrSize, bufferUsage)
{
var gl = this.gl;
var vertexBuffer = gl.createBuffer();
this.setVertexBuffer(vertexBuffer);
gl.bufferData(gl.ARRAY_BUFFER, initialDataOrSize, bufferUsage);
this.setVertexBuffer(null);
return vertexBuffer;
},
createIndexBuffer: function ()
{
var gl = this.gl;
var indexBuffer = gl.createBuffer();
this.setIndexBuffer(indexBuffer);
gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, initialDataOrSize, bufferUsage);
this.setIndexBuffer(null);
return indexBuffer;
}
});