AnimTestbed/3rdparty/ozz-animation/samples/framework/internal/immediate.cc

117 lines
4.4 KiB
C++

//----------------------------------------------------------------------------//
// //
// ozz-animation is hosted at http://github.com/guillaumeblanc/ozz-animation //
// and distributed under the MIT License (MIT). //
// //
// Copyright (c) Guillaume Blanc //
// //
// Permission is hereby granted, free of charge, to any person obtaining a //
// copy of this software and associated documentation files (the "Software"), //
// to deal in the Software without restriction, including without limitation //
// the rights to use, copy, modify, merge, publish, distribute, sublicense, //
// and/or sell copies of the Software, and to permit persons to whom the //
// Software is furnished to do so, subject to the following conditions: //
// //
// The above copyright notice and this permission notice shall be included in //
// all copies or substantial portions of the Software. //
// //
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR //
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, //
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL //
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER //
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING //
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER //
// DEALINGS IN THE SOFTWARE. //
// //
//----------------------------------------------------------------------------//
#define OZZ_INCLUDE_PRIVATE_HEADER // Allows to include private headers.
#include "immediate.h"
#include <cassert>
#include "camera.h"
#include "ozz/base/memory/allocator.h"
#include "renderer_impl.h"
#include "shader.h"
namespace ozz {
namespace sample {
namespace internal {
GlImmediateRenderer::GlImmediateRenderer(RendererImpl* _renderer)
: vbo_(0), size_(0), renderer_(_renderer) {}
GlImmediateRenderer::~GlImmediateRenderer() {
assert(size_ == 0 && "Immediate rendering still in use.");
if (vbo_) {
GL(DeleteBuffers(1, &vbo_));
vbo_ = 0;
}
}
bool GlImmediateRenderer::Initialize() {
GL(GenBuffers(1, &vbo_));
immediate_pc_shader = ImmediatePCShader::Build();
if (!immediate_pc_shader) {
return false;
}
immediate_ptc_shader = ImmediatePTCShader::Build();
if (!immediate_ptc_shader) {
return false;
}
return true;
}
void GlImmediateRenderer::Begin() {
assert(size_ == 0 && "Immediate rendering already in use.");
}
template <>
void GlImmediateRenderer::End<VertexPC>(GLenum _mode,
const ozz::math::Float4x4& _transform) {
GL(BindBuffer(GL_ARRAY_BUFFER, vbo_));
GL(BufferData(GL_ARRAY_BUFFER, size_, buffer_.data(), GL_STREAM_DRAW));
immediate_pc_shader->Bind(_transform, renderer_->camera()->view_proj(),
sizeof(VertexPC), 0, sizeof(VertexPC), 12);
const int count = static_cast<int>(size_ / sizeof(VertexPC));
GL(DrawArrays(_mode, 0, count));
immediate_pc_shader->Unbind();
GL(BindBuffer(GL_ARRAY_BUFFER, 0));
// Reset vertex count for the next call
size_ = 0;
}
template <>
void GlImmediateRenderer::End<VertexPTC>(
GLenum _mode, const ozz::math::Float4x4& _transform) {
GL(BindBuffer(GL_ARRAY_BUFFER, vbo_));
GL(BufferData(GL_ARRAY_BUFFER, size_, buffer_.data(), GL_STREAM_DRAW));
immediate_ptc_shader->Bind(_transform, renderer_->camera()->view_proj(),
sizeof(VertexPTC), 0, sizeof(VertexPTC), 12,
sizeof(VertexPTC), 20);
const int count = static_cast<int>(size_ / sizeof(VertexPTC));
GL(DrawArrays(_mode, 0, count));
immediate_ptc_shader->Unbind();
GL(BindBuffer(GL_ARRAY_BUFFER, 0));
// Reset vertex count for the next call
size_ = 0;
}
} // namespace internal
} // namespace sample
} // namespace ozz