mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-31 06:05:44 +00:00
481 lines
13 KiB
C++
481 lines
13 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "WebGLContext.h"
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#include "GLContext.h"
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#include "mozilla/CheckedInt.h"
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#include "WebGLBuffer.h"
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#include "WebGLFramebuffer.h"
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#include "WebGLProgram.h"
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#include "WebGLRenderbuffer.h"
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#include "WebGLShader.h"
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#include "WebGLTexture.h"
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#include "WebGLVertexArray.h"
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#include "WebGLVertexAttribData.h"
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#include "mozilla/Casting.h"
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namespace mozilla {
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void
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WebGLContext::GetVertexAttribFloat(GLuint index, GLfloat* out_result)
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{
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if (index) {
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gl->fGetVertexAttribfv(index, LOCAL_GL_CURRENT_VERTEX_ATTRIB, out_result);
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} else {
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out_result[0] = mVertexAttrib0Vector[0];
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out_result[1] = mVertexAttrib0Vector[1];
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out_result[2] = mVertexAttrib0Vector[2];
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out_result[3] = mVertexAttrib0Vector[3];
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}
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}
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void
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WebGLContext::GetVertexAttribInt(GLuint index, GLint* out_result)
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{
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if (index) {
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gl->fGetVertexAttribIiv(index, LOCAL_GL_CURRENT_VERTEX_ATTRIB, out_result);
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} else {
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out_result[0] = BitwiseCast<GLint>(mVertexAttrib0Vector[0]);
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out_result[1] = BitwiseCast<GLint>(mVertexAttrib0Vector[1]);
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out_result[2] = BitwiseCast<GLint>(mVertexAttrib0Vector[2]);
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out_result[3] = BitwiseCast<GLint>(mVertexAttrib0Vector[3]);
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}
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}
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void
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WebGLContext::GetVertexAttribUint(GLuint index, GLuint* out_result)
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{
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if (index) {
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gl->fGetVertexAttribIuiv(index, LOCAL_GL_CURRENT_VERTEX_ATTRIB, out_result);
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} else {
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out_result[0] = BitwiseCast<GLuint>(mVertexAttrib0Vector[0]);
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out_result[1] = BitwiseCast<GLuint>(mVertexAttrib0Vector[1]);
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out_result[2] = BitwiseCast<GLuint>(mVertexAttrib0Vector[2]);
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out_result[3] = BitwiseCast<GLuint>(mVertexAttrib0Vector[3]);
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}
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}
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JSObject*
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WebGLContext::GetVertexAttribFloat32Array(JSContext* cx, GLuint index)
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{
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GLfloat attrib[4];
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GetVertexAttribFloat(index, &attrib[0]);
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return dom::Float32Array::Create(cx, this, 4, attrib);
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}
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JSObject*
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WebGLContext::GetVertexAttribInt32Array(JSContext* cx, GLuint index)
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{
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GLint attrib[4];
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GetVertexAttribInt(index, &attrib[0]);
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return dom::Int32Array::Create(cx, this, 4, attrib);
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}
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JSObject*
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WebGLContext::GetVertexAttribUint32Array(JSContext* cx, GLuint index) {
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GLuint attrib[4];
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GetVertexAttribUint(index, &attrib[0]);
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return dom::Uint32Array::Create(cx, this, 4, attrib);
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}
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void
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WebGLContext::VertexAttrib1f(GLuint index, GLfloat x0)
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{
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if (IsContextLost())
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return;
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if (!ValidateAttribIndex(index, "vertexAttrib1f"))
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return;
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mVertexAttribType[index] = LOCAL_GL_FLOAT;
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MakeContextCurrent();
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if (index) {
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gl->fVertexAttrib1f(index, x0);
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} else {
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mVertexAttrib0Vector[0] = x0;
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mVertexAttrib0Vector[1] = 0;
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mVertexAttrib0Vector[2] = 0;
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mVertexAttrib0Vector[3] = 1;
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if (gl->IsGLES())
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gl->fVertexAttrib1f(index, x0);
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}
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}
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void
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WebGLContext::VertexAttrib2f(GLuint index, GLfloat x0, GLfloat x1)
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{
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if (IsContextLost())
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return;
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if (!ValidateAttribIndex(index, "vertexAttrib2f"))
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return;
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mVertexAttribType[index] = LOCAL_GL_FLOAT;
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MakeContextCurrent();
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if (index) {
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gl->fVertexAttrib2f(index, x0, x1);
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} else {
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mVertexAttrib0Vector[0] = x0;
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mVertexAttrib0Vector[1] = x1;
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mVertexAttrib0Vector[2] = 0;
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mVertexAttrib0Vector[3] = 1;
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if (gl->IsGLES())
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gl->fVertexAttrib2f(index, x0, x1);
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}
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}
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void
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WebGLContext::VertexAttrib3f(GLuint index, GLfloat x0, GLfloat x1, GLfloat x2)
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{
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if (IsContextLost())
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return;
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if (!ValidateAttribIndex(index, "vertexAttrib3f"))
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return;
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mVertexAttribType[index] = LOCAL_GL_FLOAT;
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MakeContextCurrent();
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if (index) {
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gl->fVertexAttrib3f(index, x0, x1, x2);
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} else {
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mVertexAttrib0Vector[0] = x0;
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mVertexAttrib0Vector[1] = x1;
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mVertexAttrib0Vector[2] = x2;
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mVertexAttrib0Vector[3] = 1;
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if (gl->IsGLES())
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gl->fVertexAttrib3f(index, x0, x1, x2);
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}
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}
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void
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WebGLContext::VertexAttrib4f(GLuint index, GLfloat x0, GLfloat x1,
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GLfloat x2, GLfloat x3)
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{
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if (IsContextLost())
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return;
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if (!ValidateAttribIndex(index, "vertexAttrib4f"))
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return;
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mVertexAttribType[index] = LOCAL_GL_FLOAT;
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MakeContextCurrent();
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if (index) {
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gl->fVertexAttrib4f(index, x0, x1, x2, x3);
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} else {
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mVertexAttrib0Vector[0] = x0;
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mVertexAttrib0Vector[1] = x1;
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mVertexAttrib0Vector[2] = x2;
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mVertexAttrib0Vector[3] = x3;
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if (gl->IsGLES())
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gl->fVertexAttrib4f(index, x0, x1, x2, x3);
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}
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}
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void
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WebGLContext::VertexAttrib1fv_base(GLuint index, uint32_t arrayLength,
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const GLfloat* ptr)
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{
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if (!ValidateAttribArraySetter("VertexAttrib1fv", 1, arrayLength))
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return;
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if (!ValidateAttribIndex(index, "vertexAttrib1fv"))
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return;
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mVertexAttribType[index] = LOCAL_GL_FLOAT;
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MakeContextCurrent();
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if (index) {
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gl->fVertexAttrib1fv(index, ptr);
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} else {
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mVertexAttrib0Vector[0] = ptr[0];
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mVertexAttrib0Vector[1] = GLfloat(0);
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mVertexAttrib0Vector[2] = GLfloat(0);
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mVertexAttrib0Vector[3] = GLfloat(1);
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if (gl->IsGLES())
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gl->fVertexAttrib1fv(index, ptr);
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}
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}
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void
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WebGLContext::VertexAttrib2fv_base(GLuint index, uint32_t arrayLength,
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const GLfloat* ptr)
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{
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if (!ValidateAttribArraySetter("VertexAttrib2fv", 2, arrayLength))
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return;
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if (!ValidateAttribIndex(index, "vertexAttrib2fv"))
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return;
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mVertexAttribType[index] = LOCAL_GL_FLOAT;
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MakeContextCurrent();
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if (index) {
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gl->fVertexAttrib2fv(index, ptr);
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} else {
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mVertexAttrib0Vector[0] = ptr[0];
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mVertexAttrib0Vector[1] = ptr[1];
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mVertexAttrib0Vector[2] = GLfloat(0);
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mVertexAttrib0Vector[3] = GLfloat(1);
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if (gl->IsGLES())
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gl->fVertexAttrib2fv(index, ptr);
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}
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}
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void
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WebGLContext::VertexAttrib3fv_base(GLuint index, uint32_t arrayLength,
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const GLfloat* ptr)
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{
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if (!ValidateAttribArraySetter("VertexAttrib3fv", 3, arrayLength))
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return;
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if (!ValidateAttribIndex(index, "vertexAttrib3fv"))
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return;
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mVertexAttribType[index] = LOCAL_GL_FLOAT;
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MakeContextCurrent();
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if (index) {
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gl->fVertexAttrib3fv(index, ptr);
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} else {
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mVertexAttrib0Vector[0] = ptr[0];
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mVertexAttrib0Vector[1] = ptr[1];
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mVertexAttrib0Vector[2] = ptr[2];
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mVertexAttrib0Vector[3] = GLfloat(1);
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if (gl->IsGLES())
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gl->fVertexAttrib3fv(index, ptr);
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}
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}
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void
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WebGLContext::VertexAttrib4fv_base(GLuint index, uint32_t arrayLength,
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const GLfloat* ptr)
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{
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if (!ValidateAttribArraySetter("VertexAttrib4fv", 4, arrayLength))
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return;
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if (!ValidateAttribIndex(index, "vertexAttrib4fv"))
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return;
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mVertexAttribType[index] = LOCAL_GL_FLOAT;
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MakeContextCurrent();
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if (index) {
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gl->fVertexAttrib4fv(index, ptr);
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} else {
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mVertexAttrib0Vector[0] = ptr[0];
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mVertexAttrib0Vector[1] = ptr[1];
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mVertexAttrib0Vector[2] = ptr[2];
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mVertexAttrib0Vector[3] = ptr[3];
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if (gl->IsGLES())
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gl->fVertexAttrib4fv(index, ptr);
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}
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}
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void
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WebGLContext::EnableVertexAttribArray(GLuint index)
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{
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if (IsContextLost())
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return;
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if (!ValidateAttribIndex(index, "enableVertexAttribArray"))
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return;
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MakeContextCurrent();
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InvalidateBufferFetching();
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gl->fEnableVertexAttribArray(index);
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MOZ_ASSERT(mBoundVertexArray);
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mBoundVertexArray->EnsureAttrib(index);
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mBoundVertexArray->mAttribs[index].mEnabled = true;
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}
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void
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WebGLContext::DisableVertexAttribArray(GLuint index)
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{
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if (IsContextLost())
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return;
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if (!ValidateAttribIndex(index, "disableVertexAttribArray"))
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return;
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MakeContextCurrent();
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InvalidateBufferFetching();
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if (index || gl->IsGLES()) {
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gl->fDisableVertexAttribArray(index);
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}
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MOZ_ASSERT(mBoundVertexArray);
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mBoundVertexArray->EnsureAttrib(index);
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mBoundVertexArray->mAttribs[index].mEnabled = false;
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}
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JS::Value
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WebGLContext::GetVertexAttrib(JSContext* cx, GLuint index, GLenum pname,
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ErrorResult& rv)
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{
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if (IsContextLost())
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return JS::NullValue();
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if (!ValidateAttribIndex(index, "getVertexAttrib"))
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return JS::NullValue();
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MOZ_ASSERT(mBoundVertexArray);
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mBoundVertexArray->EnsureAttrib(index);
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MakeContextCurrent();
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switch (pname) {
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case LOCAL_GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING:
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return WebGLObjectAsJSValue(cx, mBoundVertexArray->mAttribs[index].mBuf.get(), rv);
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case LOCAL_GL_VERTEX_ATTRIB_ARRAY_STRIDE:
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return JS::Int32Value(mBoundVertexArray->mAttribs[index].Stride());
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case LOCAL_GL_VERTEX_ATTRIB_ARRAY_SIZE:
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return JS::Int32Value(mBoundVertexArray->mAttribs[index].Size());
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case LOCAL_GL_VERTEX_ATTRIB_ARRAY_TYPE:
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return JS::Int32Value(mBoundVertexArray->mAttribs[index].Type());
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case LOCAL_GL_VERTEX_ATTRIB_ARRAY_INTEGER:
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if (IsWebGL2())
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return JS::BooleanValue(mBoundVertexArray->mAttribs[index].IntegerFunc());
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break;
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case LOCAL_GL_VERTEX_ATTRIB_ARRAY_DIVISOR:
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if (IsWebGL2() ||
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IsExtensionEnabled(WebGLExtensionID::ANGLE_instanced_arrays))
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{
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return JS::Int32Value(mBoundVertexArray->mAttribs[index].mDivisor);
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}
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break;
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case LOCAL_GL_CURRENT_VERTEX_ATTRIB:
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{
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JS::RootedObject obj(cx);
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switch (mVertexAttribType[index]) {
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case LOCAL_GL_FLOAT:
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obj = GetVertexAttribFloat32Array(cx, index);
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break;
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case LOCAL_GL_INT:
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obj = GetVertexAttribInt32Array(cx, index);
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break;
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case LOCAL_GL_UNSIGNED_INT:
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obj = GetVertexAttribUint32Array(cx, index);
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break;
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}
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if (!obj)
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rv.Throw(NS_ERROR_OUT_OF_MEMORY);
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return JS::ObjectOrNullValue(obj);
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}
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case LOCAL_GL_VERTEX_ATTRIB_ARRAY_ENABLED:
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return JS::BooleanValue(mBoundVertexArray->mAttribs[index].mEnabled);
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case LOCAL_GL_VERTEX_ATTRIB_ARRAY_NORMALIZED:
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return JS::BooleanValue(mBoundVertexArray->mAttribs[index].Normalized());
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default:
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break;
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}
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ErrorInvalidEnumInfo("getVertexAttrib: parameter", pname);
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return JS::NullValue();
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}
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WebGLsizeiptr
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WebGLContext::GetVertexAttribOffset(GLuint index, GLenum pname)
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{
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if (IsContextLost())
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return 0;
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if (!ValidateAttribIndex(index, "getVertexAttribOffset"))
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return 0;
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if (pname != LOCAL_GL_VERTEX_ATTRIB_ARRAY_POINTER) {
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ErrorInvalidEnum("getVertexAttribOffset: bad parameter");
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return 0;
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}
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MOZ_ASSERT(mBoundVertexArray);
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mBoundVertexArray->EnsureAttrib(index);
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return mBoundVertexArray->mAttribs[index].ByteOffset();
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}
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void
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WebGLContext::VertexAttribPointer(GLuint index, GLint size, GLenum type,
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WebGLboolean normalized, GLsizei stride,
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WebGLintptr byteOffset)
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{
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if (IsContextLost())
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return;
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if (!ValidateAttribIndex(index, "vertexAttribPointer"))
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return;
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if (!ValidateAttribPointer(false, index, size, type, normalized, stride, byteOffset, "vertexAttribPointer"))
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return;
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MOZ_ASSERT(mBoundVertexArray);
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mBoundVertexArray->EnsureAttrib(index);
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InvalidateBufferFetching();
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/* XXX make work with bufferSubData & heterogeneous types
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if (type != mBoundArrayBuffer->GLType())
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return ErrorInvalidOperation("vertexAttribPointer: type must match bound VBO type: %d != %d", type, mBoundArrayBuffer->GLType());
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*/
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MakeContextCurrent();
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gl->fVertexAttribPointer(index, size, type, normalized, stride,
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reinterpret_cast<void*>(byteOffset));
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WebGLVertexAttribData& vd = mBoundVertexArray->mAttribs[index];
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const bool integerFunc = false;
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vd.VertexAttribPointer(integerFunc, mBoundArrayBuffer, size, type, normalized, stride,
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byteOffset);
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}
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void
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WebGLContext::VertexAttribDivisor(GLuint index, GLuint divisor)
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{
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if (IsContextLost())
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return;
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if (!ValidateAttribIndex(index, "vertexAttribDivisor"))
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return;
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MOZ_ASSERT(mBoundVertexArray);
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mBoundVertexArray->EnsureAttrib(index);
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WebGLVertexAttribData& vd = mBoundVertexArray->mAttribs[index];
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vd.mDivisor = divisor;
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InvalidateBufferFetching();
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MakeContextCurrent();
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gl->fVertexAttribDivisor(index, divisor);
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}
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} // namespace mozilla
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