97 lines
2.5 KiB
C++
97 lines
2.5 KiB
C++
// Copyright 2013 Dolphin Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#include "Common/MemoryUtil.h"
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#include "Common/x64ABI.h"
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#include "Common/x64Emitter.h"
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#include "VideoBackends/OGL/GLUtil.h"
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#include "VideoBackends/OGL/ProgramShaderCache.h"
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#include "VideoBackends/OGL/VertexManager.h"
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#include "VideoCommon/CPMemory.h"
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#include "VideoCommon/NativeVertexFormat.h"
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#include "VideoCommon/VertexShaderGen.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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static inline GLuint VarToGL(VarType t)
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{
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static const GLuint lookup[5] = {
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GL_UNSIGNED_BYTE, GL_BYTE, GL_UNSIGNED_SHORT, GL_SHORT, GL_FLOAT
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};
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return lookup[t];
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}
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static void SetPointer(u32 attrib, u32 stride, const AttributeFormat &format)
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{
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if (!format.enable)
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return;
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glEnableVertexAttribArray(attrib);
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if (format.integer)
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glVertexAttribIPointer(attrib, format.components, VarToGL(format.type), stride, (u8*)nullptr + format.offset);
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else
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glVertexAttribPointer(attrib, format.components, VarToGL(format.type), true, stride, (u8*)nullptr + format.offset);
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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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u32 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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SetPointer(SHADER_POSITION_ATTRIB, vertex_stride, vtx_decl.position);
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for (int i = 0; i < 3; i++)
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SetPointer(SHADER_NORM0_ATTRIB+i, vertex_stride, vtx_decl.normals[i]);
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for (int i = 0; i < 2; i++)
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SetPointer(SHADER_COLOR0_ATTRIB+i, vertex_stride, vtx_decl.colors[i]);
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for (int i = 0; i < 8; i++)
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SetPointer(SHADER_TEXTURE0_ATTRIB+i, vertex_stride, vtx_decl.texcoords[i]);
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SetPointer(SHADER_POSMTX_ATTRIB, vertex_stride, vtx_decl.posmtx);
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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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}
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