92 lines
2.3 KiB
C++
92 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "WebGL2Context.h"
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#include "GLContext.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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bool
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WebGL2Context::ValidateAttribPointerType(bool integerMode, GLenum type,
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uint32_t* out_alignment, const char* info)
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{
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MOZ_ASSERT(out_alignment);
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switch (type) {
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case LOCAL_GL_BYTE:
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case LOCAL_GL_UNSIGNED_BYTE:
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*out_alignment = 1;
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return true;
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case LOCAL_GL_SHORT:
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case LOCAL_GL_UNSIGNED_SHORT:
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*out_alignment = 2;
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return true;
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case LOCAL_GL_INT:
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case LOCAL_GL_UNSIGNED_INT:
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*out_alignment = 4;
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return true;
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}
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if (!integerMode) {
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switch (type) {
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case LOCAL_GL_HALF_FLOAT:
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*out_alignment = 2;
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return true;
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case LOCAL_GL_FLOAT:
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case LOCAL_GL_FIXED:
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case LOCAL_GL_INT_2_10_10_10_REV:
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case LOCAL_GL_UNSIGNED_INT_2_10_10_10_REV:
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*out_alignment = 4;
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return true;
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}
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}
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ErrorInvalidEnum("%s: invalid enum value 0x%x", info, type);
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return false;
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}
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// -------------------------------------------------------------------------
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// Vertex Attributes
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void
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WebGL2Context::VertexAttribIPointer(GLuint index, GLint size, GLenum type, GLsizei stride,
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GLintptr offset)
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{
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if (IsContextLost())
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return;
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if (!ValidateAttribIndex(index, "vertexAttribIPointer"))
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return;
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if (!ValidateAttribPointer(true, index, size, type, LOCAL_GL_FALSE, stride, offset,
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"vertexAttribIPointer"))
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{
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return;
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}
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MOZ_ASSERT(mBoundVertexArray);
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InvalidateBufferFetching();
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MakeContextCurrent();
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gl->fVertexAttribIPointer(index, size, type, stride, reinterpret_cast<void*>(offset));
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WebGLVertexAttribData& vd = mBoundVertexArray->mAttribs[index];
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const bool integerFunc = true;
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const bool normalized = false;
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vd.VertexAttribPointer(integerFunc, mBoundArrayBuffer, size, type, normalized, stride,
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offset);
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}
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} // namespace mozilla
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