forked from dolphin-emu/dolphin
113 lines
3.3 KiB
C++
113 lines
3.3 KiB
C++
// Copyright (C) 2003 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#include "GLUtil.h"
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#include "x64Emitter.h"
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#include "ABI.h"
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#include "MemoryUtil.h"
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#include "ProgramShaderCache.h"
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#include "VertexShaderGen.h"
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#include "CPMemory.h"
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#include "NativeVertexFormat.h"
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#include "VertexManager.h"
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// Here's some global state. We only use this to keep track of what we've sent to the OpenGL state
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// machine.
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namespace OGL
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{
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NativeVertexFormat* VertexManager::CreateNativeVertexFormat()
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{
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return new GLVertexFormat();
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}
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GLVertexFormat::GLVertexFormat()
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{
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}
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GLVertexFormat::~GLVertexFormat()
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{
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glDeleteVertexArrays(1, &VAO);
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}
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inline GLuint VarToGL(VarType t)
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{
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static const GLuint lookup[5] = {
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GL_BYTE, GL_UNSIGNED_BYTE, GL_SHORT, GL_UNSIGNED_SHORT, GL_FLOAT
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};
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return lookup[t];
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}
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void GLVertexFormat::Initialize(const PortableVertexDeclaration &_vtx_decl)
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{
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this->vtx_decl = _vtx_decl;
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vertex_stride = vtx_decl.stride;
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// We will not allow vertex components causing uneven strides.
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if (vertex_stride & 3)
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PanicAlert("Uneven vertex stride: %i", vertex_stride);
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VertexManager *vm = (OGL::VertexManager*)g_vertex_manager;
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glGenVertexArrays(1, &VAO);
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glBindVertexArray(VAO);
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// the element buffer is bound directly to the vao, so we must it set for every vao
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, vm->m_index_buffers);
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glBindBuffer(GL_ARRAY_BUFFER, vm->m_vertex_buffers);
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glEnableVertexAttribArray(SHADER_POSITION_ATTRIB);
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glVertexAttribPointer(SHADER_POSITION_ATTRIB, 3, GL_FLOAT, GL_FALSE, vtx_decl.stride, (u8*)NULL);
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for (int i = 0; i < 3; i++) {
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if (vtx_decl.num_normals > i) {
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glEnableVertexAttribArray(SHADER_NORM0_ATTRIB+i);
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glVertexAttribPointer(SHADER_NORM0_ATTRIB+i, vtx_decl.normal_gl_size, VarToGL(vtx_decl.normal_gl_type), GL_TRUE, vtx_decl.stride, (u8*)NULL + vtx_decl.normal_offset[i]);
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}
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}
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for (int i = 0; i < 2; i++) {
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if (vtx_decl.color_offset[i] != -1) {
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glEnableVertexAttribArray(SHADER_COLOR0_ATTRIB+i);
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glVertexAttribPointer(SHADER_COLOR0_ATTRIB+i, 4, GL_UNSIGNED_BYTE, GL_TRUE, vtx_decl.stride, (u8*)NULL + vtx_decl.color_offset[i]);
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}
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}
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for (int i = 0; i < 8; i++) {
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if (vtx_decl.texcoord_offset[i] != -1) {
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glEnableVertexAttribArray(SHADER_TEXTURE0_ATTRIB+i);
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glVertexAttribPointer(SHADER_TEXTURE0_ATTRIB+i, vtx_decl.texcoord_size[i], VarToGL(vtx_decl.texcoord_gl_type[i]),
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GL_FALSE, vtx_decl.stride, (u8*)NULL + vtx_decl.texcoord_offset[i]);
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}
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}
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if (vtx_decl.posmtx_offset != -1) {
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glEnableVertexAttribArray(SHADER_POSMTX_ATTRIB);
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glVertexAttribPointer(SHADER_POSMTX_ATTRIB, 4, GL_UNSIGNED_BYTE, GL_FALSE, vtx_decl.stride, (u8*)NULL + vtx_decl.posmtx_offset);
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}
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vm->m_last_vao = VAO;
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}
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void GLVertexFormat::SetupVertexPointers() {
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}
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}
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