diff options
Diffstat (limited to 'src/library_gl.js')
| -rw-r--r-- | src/library_gl.js | 219 |
1 files changed, 131 insertions, 88 deletions
diff --git a/src/library_gl.js b/src/library_gl.js index 4977d2e9..c6007809 100644 --- a/src/library_gl.js +++ b/src/library_gl.js @@ -21,7 +21,6 @@ var LibraryGL = { #if FULL_ES2 clientBuffers: [], - enabledClientBuffers: [], #endif currArrayBuffer: 0, currElementArrayBuffer: 0, @@ -59,6 +58,65 @@ var LibraryGL = { return ret; }, + // Temporary buffers + MAX_TEMP_BUFFER_SIZE: {{{ GL_MAX_TEMP_BUFFER_SIZE }}}, + tempBufferIndexLookup: null, + tempVertexBuffers: null, + tempIndexBuffers: null, + tempQuadIndexBuffer: null, + + generateTempBuffers: function(quads) { + this.tempBufferIndexLookup = new Uint8Array(this.MAX_TEMP_BUFFER_SIZE+1); + this.tempVertexBuffers = []; + this.tempIndexBuffers = []; + var last = -1, curr = -1; + var size = 1; + for (var i = 0; i <= this.MAX_TEMP_BUFFER_SIZE; i++) { + if (i > size) { + size <<= 1; + } + if (size != last) { + curr++; + this.tempVertexBuffers[curr] = Module.ctx.createBuffer(); + Module.ctx.bindBuffer(Module.ctx.ARRAY_BUFFER, this.tempVertexBuffers[curr]); + Module.ctx.bufferData(Module.ctx.ARRAY_BUFFER, size, Module.ctx.DYNAMIC_DRAW); + Module.ctx.bindBuffer(Module.ctx.ARRAY_BUFFER, null); + this.tempIndexBuffers[curr] = Module.ctx.createBuffer(); + Module.ctx.bindBuffer(Module.ctx.ELEMENT_ARRAY_BUFFER, this.tempIndexBuffers[curr]); + Module.ctx.bufferData(Module.ctx.ELEMENT_ARRAY_BUFFER, size, Module.ctx.DYNAMIC_DRAW); + Module.ctx.bindBuffer(Module.ctx.ELEMENT_ARRAY_BUFFER, null); + last = size; + } + this.tempBufferIndexLookup[i] = curr; + } + + if (quads) { + // GL_QUAD indexes can be precalculated + this.tempQuadIndexBuffer = Module.ctx.createBuffer(); + Module.ctx.bindBuffer(Module.ctx.ELEMENT_ARRAY_BUFFER, this.tempQuadIndexBuffer); + var numIndexes = this.MAX_TEMP_BUFFER_SIZE >> 1; + var quadIndexes = new Uint16Array(numIndexes); + var i = 0, v = 0; + while (1) { + quadIndexes[i++] = v; + if (i >= numIndexes) break; + quadIndexes[i++] = v+1; + if (i >= numIndexes) break; + quadIndexes[i++] = v+2; + if (i >= numIndexes) break; + quadIndexes[i++] = v; + if (i >= numIndexes) break; + quadIndexes[i++] = v+2; + if (i >= numIndexes) break; + quadIndexes[i++] = v+3; + if (i >= numIndexes) break; + v += 4; + } + Module.ctx.bufferData(Module.ctx.ELEMENT_ARRAY_BUFFER, quadIndexes, Module.ctx.STATIC_DRAW); + Module.ctx.bindBuffer(Module.ctx.ELEMENT_ARRAY_BUFFER, null); + } + }, + // Linear lookup in one of the tables (buffers, programs, etc.). TODO: consider using a weakmap to make this faster, if it matters scan: function(table, object) { for (var item in table) { @@ -207,19 +265,34 @@ var LibraryGL = { return size * typeSize * count; }, + usedTempBuffers: [], + preDrawHandleClientVertexAttribBindings: function(count) { GL.resetBufferBinding = false; + + var used = GL.usedTempBuffers; + used.length = 0; + + // TODO: initial pass to detect ranges we need to upload, might not need an upload per attrib for (var i = 0; i < GL.maxVertexAttribs; ++i) { - if (!GL.enabledClientBuffers[i] || !GL.clientBuffers[i]) continue; - - GL.resetBufferBinding = true; - var cb = GL.clientBuffers[i]; - - var buf = Module.ctx.createBuffer(); + if (!cb.enabled) continue; + + GL.resetBufferBinding = true; + + var size = GL.calcBufLength(cb.size, cb.type, cb.stride, count); + var index = GL.tempBufferIndexLookup[size]; + var buf; + do { +#if ASSERTIONS + assert(index < GL.tempVertexBuffers.length); +#endif + buf = GL.tempVertexBuffers[index++]; + } while (used.indexOf(buf) >= 0); + used.push(buf); Module.ctx.bindBuffer(Module.ctx.ARRAY_BUFFER, buf); Module.ctx.bufferData(Module.ctx.ARRAY_BUFFER, - HEAPU8.subarray(cb.ptr, cb.ptr + GL.calcBufLength(cb.size, cb.type, cb.stride, count)), + HEAPU8.subarray(cb.ptr, cb.ptr + size), Module.ctx.DYNAMIC_DRAW); Module.ctx.vertexAttribPointer(i, cb.size, cb.type, cb.normalized, cb.stride, 0); } @@ -239,6 +312,13 @@ var LibraryGL = { if (!Module.useWebGL) return; // an app might link both gl and 2d backends GL.maxVertexAttribs = Module.ctx.getParameter(Module.ctx.MAX_VERTEX_ATTRIBS); +#if FULL_ES2 + for (var i = 0; i < GL.maxVertexAttribs; i++) { + GL.clientBuffers[i] = { enabled: false, size: 0, type: 0, normalized: 0, stride: 0, ptr: 0 }; + } + + GL.generateTempBuffers(); +#endif GL.compressionExt = Module.ctx.getExtension('WEBGL_compressed_texture_s3tc') || Module.ctx.getExtension('MOZ_WEBGL_compressed_texture_s3tc') || @@ -612,7 +692,7 @@ var LibraryGL = { glGetVertexAttribfv: function(index, pname, params) { #if FULL_ES2 - if (GL.clientBuffers[index]) { + if (GL.clientBuffers[index].enabled) { Module.printErr("glGetVertexAttribfv on client-side array: not supported, bad data returned"); } #endif @@ -628,7 +708,7 @@ var LibraryGL = { glGetVertexAttribiv: function(index, pname, params) { #if FULL_ES2 - if (GL.clientBuffers[index]) { + if (GL.clientBuffers[index].enabled) { Module.printErr("glGetVertexAttribiv on client-side array: not supported, bad data returned"); } #endif @@ -644,7 +724,7 @@ var LibraryGL = { glGetVertexAttribPointerv: function(index, pname, pointer) { #if FULL_ES2 - if (GL.clientBuffers[index]) { + if (GL.clientBuffers[index].enabled) { Module.printErr("glGetVertexAttribPointer on client-side array: not supported, bad data returned"); } #endif @@ -1693,62 +1773,6 @@ var LibraryGL = { this.modifiedClientAttributes = true; }, - // Temporary buffers - MAX_TEMP_BUFFER_SIZE: {{{ GL_MAX_TEMP_BUFFER_SIZE }}}, - tempBufferIndexLookup: null, - tempVertexBuffers: null, - tempIndexBuffers: null, - tempQuadIndexBuffer: null, - - generateTempBuffers: function() { - this.tempBufferIndexLookup = new Uint8Array(this.MAX_TEMP_BUFFER_SIZE+1); - this.tempVertexBuffers = []; - this.tempIndexBuffers = []; - var last = -1, curr = -1; - var size = 1; - for (var i = 0; i <= this.MAX_TEMP_BUFFER_SIZE; i++) { - if (i > size) { - size <<= 1; - } - if (size != last) { - curr++; - this.tempVertexBuffers[curr] = Module.ctx.createBuffer(); - Module.ctx.bindBuffer(Module.ctx.ARRAY_BUFFER, this.tempVertexBuffers[curr]); - Module.ctx.bufferData(Module.ctx.ARRAY_BUFFER, size, Module.ctx.DYNAMIC_DRAW); - Module.ctx.bindBuffer(Module.ctx.ARRAY_BUFFER, null); - this.tempIndexBuffers[curr] = Module.ctx.createBuffer(); - Module.ctx.bindBuffer(Module.ctx.ELEMENT_ARRAY_BUFFER, this.tempIndexBuffers[curr]); - Module.ctx.bufferData(Module.ctx.ELEMENT_ARRAY_BUFFER, size, Module.ctx.DYNAMIC_DRAW); - Module.ctx.bindBuffer(Module.ctx.ELEMENT_ARRAY_BUFFER, null); - last = size; - } - this.tempBufferIndexLookup[i] = curr; - } - // GL_QUAD indexes can be precalculated - this.tempQuadIndexBuffer = Module.ctx.createBuffer(); - Module.ctx.bindBuffer(Module.ctx.ELEMENT_ARRAY_BUFFER, this.tempQuadIndexBuffer); - var numIndexes = this.MAX_TEMP_BUFFER_SIZE >> 1; - var quadIndexes = new Uint16Array(numIndexes); - var i = 0, v = 0; - while (1) { - quadIndexes[i++] = v; - if (i >= numIndexes) break; - quadIndexes[i++] = v+1; - if (i >= numIndexes) break; - quadIndexes[i++] = v+2; - if (i >= numIndexes) break; - quadIndexes[i++] = v; - if (i >= numIndexes) break; - quadIndexes[i++] = v+2; - if (i >= numIndexes) break; - quadIndexes[i++] = v+3; - if (i >= numIndexes) break; - v += 4; - } - Module.ctx.bufferData(Module.ctx.ELEMENT_ARRAY_BUFFER, quadIndexes, Module.ctx.STATIC_DRAW); - Module.ctx.bindBuffer(Module.ctx.ELEMENT_ARRAY_BUFFER, null); - }, - // Renderers addRendererComponent: function(name, size, type) { if (!this.rendererComponents[name]) { @@ -1969,8 +1993,8 @@ var LibraryGL = { if (!GL.currArrayBuffer) { var start = GL.immediate.firstVertex*GL.immediate.stride; var end = GL.immediate.lastVertex*GL.immediate.stride; - assert(end <= GL.immediate.MAX_TEMP_BUFFER_SIZE, 'too much vertex data'); - arrayBuffer = GL.immediate.tempVertexBuffers[GL.immediate.tempBufferIndexLookup[end]]; + assert(end <= GL.MAX_TEMP_BUFFER_SIZE, 'too much vertex data'); + arrayBuffer = GL.tempVertexBuffers[GL.tempBufferIndexLookup[end]]; // TODO: consider using the last buffer we bound, if it was larger. downside is larger buffer, but we might avoid rebinding and preparing } else { arrayBuffer = GL.currArrayBuffer; @@ -2161,12 +2185,12 @@ var LibraryGL = { this.rendererCache = this.rendererCacheItemTemplate.slice(); // Buffers for data - this.tempData = new Float32Array(this.MAX_TEMP_BUFFER_SIZE >> 2); - this.indexData = new Uint16Array(this.MAX_TEMP_BUFFER_SIZE >> 1); + this.tempData = new Float32Array(GL.MAX_TEMP_BUFFER_SIZE >> 2); + this.indexData = new Uint16Array(GL.MAX_TEMP_BUFFER_SIZE >> 1); this.vertexDataU8 = new Uint8Array(this.tempData.buffer); - this.generateTempBuffers(); + GL.generateTempBuffers(true); this.clientColor = new Float32Array([1, 1, 1, 1]); }, @@ -2209,7 +2233,7 @@ var LibraryGL = { #if ASSERTIONS Runtime.warnOnce('Unpacking/restriding attributes, this is not fast'); #endif - if (!GL.immediate.restrideBuffer) GL.immediate.restrideBuffer = _malloc(GL.immediate.MAX_TEMP_BUFFER_SIZE); + if (!GL.immediate.restrideBuffer) GL.immediate.restrideBuffer = _malloc(GL.MAX_TEMP_BUFFER_SIZE); start = GL.immediate.restrideBuffer; #if ASSERTIONS assert(start % 4 == 0); @@ -2224,7 +2248,7 @@ var LibraryGL = { bytes += size; } #if ASSERTIONS - assert(count*bytes <= GL.immediate.MAX_TEMP_BUFFER_SIZE); + assert(count*bytes <= GL.MAX_TEMP_BUFFER_SIZE); #endif // copy out the data (we need to know the stride for that, and define attribute.pointer for (var i = 0; i < attributes.length; i++) { @@ -2298,8 +2322,8 @@ var LibraryGL = { } if (!GL.currElementArrayBuffer) { // If no element array buffer is bound, then indices is a literal pointer to clientside data - assert(numProvidedIndexes << 1 <= GL.immediate.MAX_TEMP_BUFFER_SIZE, 'too many immediate mode indexes (a)'); - var indexBuffer = GL.immediate.tempIndexBuffers[GL.immediate.tempBufferIndexLookup[numProvidedIndexes << 1]]; + assert(numProvidedIndexes << 1 <= GL.MAX_TEMP_BUFFER_SIZE, 'too many immediate mode indexes (a)'); + var indexBuffer = GL.tempIndexBuffers[GL.tempBufferIndexLookup[numProvidedIndexes << 1]]; Module.ctx.bindBuffer(Module.ctx.ELEMENT_ARRAY_BUFFER, indexBuffer); Module.ctx.bufferSubData(Module.ctx.ELEMENT_ARRAY_BUFFER, 0, {{{ makeHEAPView('U16', 'ptr', 'ptr + (numProvidedIndexes << 1)') }}}); ptr = 0; @@ -2314,8 +2338,8 @@ var LibraryGL = { ptr = GL.immediate.firstVertex*3; var numQuads = numVertexes / 4; numIndexes = numQuads * 6; // 0 1 2, 0 2 3 pattern - assert(ptr + (numIndexes << 1) <= GL.immediate.MAX_TEMP_BUFFER_SIZE, 'too many immediate mode indexes (b)'); - Module.ctx.bindBuffer(Module.ctx.ELEMENT_ARRAY_BUFFER, this.tempQuadIndexBuffer); + assert(ptr + (numIndexes << 1) <= GL.MAX_TEMP_BUFFER_SIZE, 'too many immediate mode indexes (b)'); + Module.ctx.bindBuffer(Module.ctx.ELEMENT_ARRAY_BUFFER, GL.tempQuadIndexBuffer); emulatedElementArrayBuffer = true; } @@ -2369,7 +2393,7 @@ var LibraryGL = { GL.immediate.vertexData[GL.immediate.vertexCounter++] = y; GL.immediate.vertexData[GL.immediate.vertexCounter++] = z || 0; #if ASSERTIONS - assert(GL.immediate.vertexCounter << 2 < GL.immediate.MAX_TEMP_BUFFER_SIZE); + assert(GL.immediate.vertexCounter << 2 < GL.MAX_TEMP_BUFFER_SIZE); #endif GL.immediate.addRendererComponent(GL.immediate.VERTEX, 3, Module.ctx.FLOAT); }, @@ -2849,15 +2873,24 @@ var LibraryGL = { glShadeModel: function() { Runtime.warnOnce('TODO: glShadeModel') }, + // GLES2 emulation + glVertexAttribPointer__sig: 'viiiiii', glVertexAttribPointer: function(index, size, type, normalized, stride, ptr) { #if FULL_ES2 + var cb = GL.clientBuffers[index]; +#if ASSERTIONS + assert(cb, index); +#endif if (!GL.currArrayBuffer) { - GL.clientBuffers[index] = { size: size, type: type, normalized: normalized, stride: stride, ptr: ptr }; + cb.size = size; + cb.type = type; + cb.normalized = normalized; + cb.stride = stride; + cb.ptr = ptr; return; } - - GL.clientBuffers[index] = null; + cb.enabled = false; #endif Module.ctx.vertexAttribPointer(index, size, type, normalized, stride, ptr); }, @@ -2865,7 +2898,11 @@ var LibraryGL = { glEnableVertexAttribArray__sig: 'vi', glEnableVertexAttribArray: function(index) { #if FULL_ES2 - GL.enabledClientBuffers[index] = true; + var cb = GL.clientBuffers[index]; +#if ASSERTIONS + assert(cb, index); +#endif + cb.enabled = true; #endif Module.ctx.enableVertexAttribArray(index); }, @@ -2873,7 +2910,11 @@ var LibraryGL = { glDisableVertexAttribArray__sig: 'vi', glDisableVertexAttribArray: function(index) { #if FULL_ES2 - GL.enabledClientBuffers[index] = false; + var cb = GL.clientBuffers[index]; +#if ASSERTIONS + assert(cb, index); +#endif + cb.enabled = false; #endif Module.ctx.disableVertexAttribArray(index); }, @@ -2881,7 +2922,7 @@ var LibraryGL = { glDrawArrays: function(mode, first, count) { #if FULL_ES2 // bind any client-side buffers - GL.preDrawHandleClientVertexAttribBindings(count); + GL.preDrawHandleClientVertexAttribBindings(first + count); #endif Module.ctx.drawArrays(mode, first, count); @@ -2895,10 +2936,11 @@ var LibraryGL = { #if FULL_ES2 var buf; if (!GL.currElementArrayBuffer) { - buf = Module.ctx.createBuffer(); + var size = GL.calcBufLength(1, type, 0, count); + buf = GL.tempIndexBuffers[GL.tempBufferIndexLookup[size]]; Module.ctx.bindBuffer(Module.ctx.ELEMENT_ARRAY_BUFFER, buf); Module.ctx.bufferData(Module.ctx.ELEMENT_ARRAY_BUFFER, - HEAPU8.subarray(indices, indices + GL.calcBufLength(1, type, 0, count)), + HEAPU8.subarray(indices, indices + size), Module.ctx.DYNAMIC_DRAW); // the index is now 0 indices = 0; @@ -2915,17 +2957,18 @@ var LibraryGL = { if (!GL.currElementArrayBuffer) { Module.ctx.bindBuffer(Module.ctx.ELEMENT_ARRAY_BUFFER, null); - Module.ctx.deleteBuffer(buf); } #endif }, // signatures of simple pass-through functions, see later + glActiveTexture__sig: 'vi', glCheckFramebufferStatus__sig: 'ii', glRenderbufferStorage__sig: 'viiii', // Open GLES1.1 compatibility + glGenFramebuffersOES : 'glGenFramebuffers', glGenRenderbuffersOES : 'glGenRenderbuffers', glBindFramebufferOES : 'glBindFramebuffer', |