293 lines
11 KiB
C++
293 lines
11 KiB
C++
//
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// KRMesh.h
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// KREngine
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//
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// Copyright 2012 Kearwood Gilbert. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other materials
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// provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
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// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// The views and conclusions contained in the software and documentation are those of the
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// authors and should not be interpreted as representing official policies, either expressed
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// or implied, of Kearwood Gilbert.
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//
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#include "KREngine-common.h"
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#include "KRVector2.h"
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#include "KRMat4.h"
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#include "KRContext.h"
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#include "KRBone.h"
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#include "KRMeshManager.h"
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#include "KREngine-common.h"
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#define MAX_VBO_SIZE 65535
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#define KRENGINE_MAX_BONE_WEIGHTS_PER_VERTEX 4
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#define KRENGINE_MAX_NAME_LENGTH 256
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// MAX_VBO_SIZE must be divisible by 3 so triangles aren't split across VBO objects...
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#define BUFFER_OFFSET(i) ((char *)NULL + (i))
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#ifndef KRMesh_I
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#define KRMesh_I
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#include "KRMaterialManager.h"
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#include "KRCamera.h"
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#include "KRViewport.h"
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#include "KRHitInfo.h"
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class KRMaterial;
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class KRNode;
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class KRTriangle3;
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class KRMesh : public KRResource {
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public:
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KRMesh(KRContext &context, std::string name, KRDataBlock *data);
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KRMesh(KRContext &context, std::string name);
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virtual ~KRMesh();
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kraken_stream_level getStreamLevel();
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void preStream(float lodCoverage);
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bool hasTransparency();
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typedef enum {
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KRENGINE_ATTRIB_VERTEX = 0,
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KRENGINE_ATTRIB_NORMAL,
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KRENGINE_ATTRIB_TANGENT,
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KRENGINE_ATTRIB_TEXUVA,
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KRENGINE_ATTRIB_TEXUVB,
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KRENGINE_ATTRIB_BONEINDEXES,
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KRENGINE_ATTRIB_BONEWEIGHTS,
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KRENGINE_ATTRIB_VERTEX_SHORT,
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KRENGINE_ATTRIB_NORMAL_SHORT,
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KRENGINE_ATTRIB_TANGENT_SHORT,
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KRENGINE_ATTRIB_TEXUVA_SHORT,
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KRENGINE_ATTRIB_TEXUVB_SHORT,
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KRENGINE_NUM_ATTRIBUTES
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} vertex_attrib_t;
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typedef enum {
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KRENGINE_MODEL_FORMAT_TRIANGLES = 0,
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KRENGINE_MODEL_FORMAT_STRIP,
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KRENGINE_MODEL_FORMAT_INDEXED_TRIANGLES,
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KRENGINE_MODEL_FORMAT_INDEXED_STRIP
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} model_format_t;
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typedef struct {
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model_format_t format;
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std::vector<KRVector3> vertices;
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std::vector<__uint16_t> vertex_indexes;
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std::vector<std::pair<int, int> > vertex_index_bases;
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std::vector<KRVector2> uva;
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std::vector<KRVector2> uvb;
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std::vector<KRVector3> normals;
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std::vector<KRVector3> tangents;
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std::vector<int> submesh_starts;
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std::vector<int> submesh_lengths;
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std::vector<std::string> material_names;
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std::vector<std::string> bone_names;
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std::vector<std::vector<int> > bone_indexes;
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std::vector<KRMat4> bone_bind_poses;
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std::vector<std::vector<float> > bone_weights;
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} mesh_info;
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void render(const std::string &object_name, KRCamera *pCamera, std::vector<KRPointLight *> &point_lights, std::vector<KRDirectionalLight *> &directional_lights, std::vector<KRSpotLight *>&spot_lights, const KRViewport &viewport, const KRMat4 &matModel, KRTexture *pLightMap, KRNode::RenderPass renderPass, const std::vector<KRBone *> &bones, const KRVector3 &rim_color, float rim_power, float lod_coverage = 0.0f);
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std::string m_lodBaseName;
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virtual std::string getExtension();
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virtual bool save(const std::string& path);
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virtual bool save(KRDataBlock &data);
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void LoadData(const mesh_info &mi, bool calculate_normals, bool calculate_tangents);
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void loadPack(KRDataBlock *data);
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void convertToIndexed();
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void optimize();
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void optimizeIndexes();
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void renderSubmesh(int iSubmesh, KRNode::RenderPass renderPass, const std::string &object_name, const std::string &material_name, float lodCoverage);
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GLfloat getMaxDimension();
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KRVector3 getMinPoint() const;
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KRVector3 getMaxPoint() const;
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class Submesh {
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public:
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Submesh() {};
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~Submesh() {
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for(auto itr = vbo_data_blocks.begin(); itr != vbo_data_blocks.end(); itr++) {
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delete (*itr);
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}
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for(auto itr = vertex_data_blocks.begin(); itr != vertex_data_blocks.end(); itr++) {
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delete (*itr);
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}
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for(auto itr = index_data_blocks.begin(); itr != index_data_blocks.end(); itr++) {
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delete (*itr);
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}
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};
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GLint start_vertex;
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GLsizei vertex_count;
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char szMaterialName[KRENGINE_MAX_NAME_LENGTH];
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vector<KRDataBlock *> vertex_data_blocks;
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vector<KRDataBlock *> index_data_blocks;
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vector<KRMeshManager::KRVBOData *> vbo_data_blocks;
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};
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typedef struct {
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union {
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struct { // For Indexed triangles / strips
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uint16_t index_group;
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uint16_t index_group_offset;
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};
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int32_t start_vertex; // For non-indexed trigangles / strips
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};
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int32_t vertex_count;
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char szName[KRENGINE_MAX_NAME_LENGTH];
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} pack_material;
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typedef struct {
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char szName[KRENGINE_MAX_NAME_LENGTH];
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float bind_pose[16];
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} pack_bone;
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int getLODCoverage() const;
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std::string getLODBaseName() const;
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static bool lod_sort_predicate(const KRMesh *m1, const KRMesh *m2);
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bool has_vertex_attribute(vertex_attrib_t attribute_type) const;
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static bool has_vertex_attribute(int vertex_attrib_flags, vertex_attrib_t attribute_type);
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int getSubmeshCount() const;
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int getVertexCount(int submesh) const;
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int getTriangleVertexIndex(int submesh, int index) const;
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KRVector3 getVertexPosition(int index) const;
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KRVector3 getVertexNormal(int index) const;
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KRVector3 getVertexTangent(int index) const;
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KRVector2 getVertexUVA(int index) const;
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KRVector2 getVertexUVB(int index) const;
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int getBoneIndex(int index, int weight_index) const;
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float getBoneWeight(int index, int weight_index) const;
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void setVertexPosition(int index, const KRVector3 &v);
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void setVertexNormal(int index, const KRVector3 &v);
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void setVertexTangent(int index, const KRVector3 & v);
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void setVertexUVA(int index, const KRVector2 &v);
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void setVertexUVB(int index, const KRVector2 &v);
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void setBoneIndex(int index, int weight_index, int bone_index);
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void setBoneWeight(int index, int weight_index, float bone_weight);
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static size_t VertexSizeForAttributes(__int32_t vertex_attrib_flags);
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static size_t AttributeOffset(__int32_t vertex_attrib, __int32_t vertex_attrib_flags);
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int getBoneCount();
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char *getBoneName(int bone_index);
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KRMat4 getBoneBindPose(int bone_index);
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model_format_t getModelFormat() const;
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bool lineCast(const KRVector3 &v0, const KRVector3 &v1, KRHitInfo &hitinfo) const;
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bool rayCast(const KRVector3 &v0, const KRVector3 &dir, KRHitInfo &hitinfo) const;
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bool sphereCast(const KRMat4 &model_to_world, const KRVector3 &v0, const KRVector3 &v1, float radius, KRHitInfo &hitinfo) const;
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static int GetLODCoverage(const std::string &name);
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void load(); // Load immediately into the GPU rather than passing through the streamer
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protected:
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bool m_constant; // TRUE if this should be always loaded and should not be passed through the streamer
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private:
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KRDataBlock *m_pData;
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KRDataBlock *m_pMetaData;
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KRDataBlock *m_pIndexBaseData;
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void getSubmeshes();
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void getMaterials();
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static bool rayCast(const KRVector3 &start, const KRVector3 &dir, const KRTriangle3 &tri, const KRVector3 &tri_n0, const KRVector3 &tri_n1, const KRVector3 &tri_n2, KRHitInfo &hitinfo);
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static bool sphereCast(const KRMat4 &model_to_world, const KRVector3 &v0, const KRVector3 &v1, float radius, const KRTriangle3 &tri, KRHitInfo &hitinfo);
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int m_lodCoverage; // This LOD level is activated when the bounding box of the model will cover less than this percent of the screen (100 = highest detail model)
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vector<KRMaterial *> m_materials;
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set<KRMaterial *> m_uniqueMaterials;
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bool m_hasTransparency;
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KRVector3 m_minPoint, m_maxPoint;
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typedef struct {
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char szTag[16];
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int32_t model_format; // 0 == Triangle list, 1 == Triangle strips, 2 == Indexed triangle list, 3 == Indexed triangle strips, rest are reserved (model_format_t enum)
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int32_t vertex_attrib_flags;
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int32_t vertex_count;
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int32_t submesh_count;
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int32_t bone_count;
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float minx, miny, minz, maxx, maxy, maxz; // Axis aligned bounding box, in model's coordinate space
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int32_t index_count;
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int32_t index_base_count;
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unsigned char reserved[444]; // Pad out to 512 bytes
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} pack_header;
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vector<Submesh *> m_submeshes;
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int m_vertex_attribute_offset[KRENGINE_NUM_ATTRIBUTES];
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int m_vertex_size;
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void updateAttributeOffsets();
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void setName(const std::string name);
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pack_material *getSubmesh(int mesh_index) const;
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unsigned char *getVertexData() const;
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size_t getVertexDataOffset() const;
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unsigned char *getVertexData(int index) const;
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__uint16_t *getIndexData() const;
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size_t getIndexDataOffset() const;
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__uint32_t *getIndexBaseData() const;
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pack_header *getHeader() const;
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pack_bone *getBone(int index);
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void getIndexedRange(int index_group, int &start_index_offset, int &start_vertex_offset, int &index_count, int &vertex_count) const;
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void releaseData();
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void createDataBlocks(KRMeshManager::KRVBOData::vbo_type t);
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};
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#endif // KRMesh_I
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