src/graphics moved to src/graphics/core
This commit is contained in:
MihailRis
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#include "Batch3D.h"
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#include "Mesh.h"
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#include "Texture.h"
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#include <GL/glew.h>
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#include "../../typedefs.h"
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inline constexpr uint B3D_VERTEX_SIZE = 9;
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Batch3D::Batch3D(size_t capacity)
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: capacity(capacity) {
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const vattr attrs[] = {
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{3}, {2}, {4}, {0}
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};
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buffer = new float[capacity * B3D_VERTEX_SIZE];
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mesh = std::make_unique<Mesh>(buffer, 0, attrs);
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index = 0;
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ubyte pixels[] = {
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255, 255, 255, 255,
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};
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blank = std::make_unique<Texture>(pixels, 1, 1, ImageFormat::rgba8888);
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_texture = nullptr;
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}
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Batch3D::~Batch3D(){
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delete[] buffer;
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}
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void Batch3D::begin(){
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_texture = nullptr;
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blank->bind();
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}
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void Batch3D::vertex(float x, float y, float z, float u, float v,
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float r, float g, float b, float a) {
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buffer[index++] = x;
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buffer[index++] = y;
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buffer[index++] = z;
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buffer[index++] = u;
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buffer[index++] = v;
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buffer[index++] = r;
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buffer[index++] = g;
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buffer[index++] = b;
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buffer[index++] = a;
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}
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void Batch3D::vertex(glm::vec3 coord, float u, float v,
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float r, float g, float b, float a) {
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buffer[index++] = coord.x;
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buffer[index++] = coord.y;
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buffer[index++] = coord.z;
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buffer[index++] = u;
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buffer[index++] = v;
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buffer[index++] = r;
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buffer[index++] = g;
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buffer[index++] = b;
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buffer[index++] = a;
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}
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void Batch3D::vertex(glm::vec3 point,
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glm::vec2 uvpoint,
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float r, float g, float b, float a) {
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buffer[index++] = point.x;
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buffer[index++] = point.y;
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buffer[index++] = point.z;
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buffer[index++] = uvpoint.x;
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buffer[index++] = uvpoint.y;
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buffer[index++] = r;
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buffer[index++] = g;
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buffer[index++] = b;
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buffer[index++] = a;
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}
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void Batch3D::face(
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const glm::vec3& coord,
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float w, float h,
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const glm::vec3& axisX,
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const glm::vec3& axisY,
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const UVRegion& region,
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const glm::vec4& tint
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) {
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if (index + B3D_VERTEX_SIZE * 6 > capacity) {
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flush();
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}
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vertex(coord, region.u1, region.v1,
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tint.r, tint.g, tint.b, tint.a);
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vertex(coord + axisX * w, region.u2, region.v1,
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tint.r, tint.g, tint.b, tint.a);
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vertex(coord + axisX * w + axisY * h, region.u2, region.v2,
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tint.r, tint.g, tint.b, tint.a);
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vertex(coord, region.u1, region.v1,
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tint.r, tint.g, tint.b, tint.a);
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vertex(coord + axisX * w + axisY * h, region.u2, region.v2,
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tint.r, tint.g, tint.b, tint.a);
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vertex(coord + axisY * h, region.u1, region.v2,
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tint.r, tint.g, tint.b, tint.a);
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}
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void Batch3D::texture(Texture* new_texture){
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if (_texture == new_texture)
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return;
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flush();
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_texture = new_texture;
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if (new_texture == nullptr)
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blank->bind();
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else
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new_texture->bind();
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}
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void Batch3D::sprite(
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glm::vec3 pos,
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glm::vec3 up,
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glm::vec3 right,
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float w, float h,
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const UVRegion& uv,
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glm::vec4 color
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){
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const float r = color.r;
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const float g = color.g;
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const float b = color.b;
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const float a = color.a;
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if (index + 6*B3D_VERTEX_SIZE >= capacity) {
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flush();
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}
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vertex(pos.x - right.x * w - up.x * h,
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pos.y - right.y * w - up.y * h,
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pos.z - right.z * w - up.z * h,
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uv.u1, uv.v1,
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r,g,b,a);
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vertex(pos.x + right.x * w + up.x * h,
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pos.y + right.y * w + up.y * h,
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pos.z + right.z * w + up.z * h,
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uv.u2, uv.v2,
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r,g,b,a);
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vertex(pos.x - right.x * w + up.x * h,
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pos.y - right.y * w + up.y * h,
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pos.z - right.z * w + up.z * h,
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uv.u1, uv.v2,
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r,g,b,a);
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vertex(pos.x - right.x * w - up.x * h,
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pos.y - right.y * w - up.y * h,
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pos.z - right.z * w - up.z * h,
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uv.u1, uv.v1,
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r,g,b,a);
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vertex(pos.x + right.x * w - up.x * h,
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pos.y + right.y * w - up.y * h,
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pos.z + right.z * w - up.z * h,
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uv.u2, uv.v1,
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r,g,b,a);
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vertex(pos.x + right.x * w + up.x * h,
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pos.y + right.y * w + up.y * h,
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pos.z + right.z * w + up.z * h,
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uv.u2, uv.v2,
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r,g,b,a);
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}
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inline glm::vec4 do_tint(float value) {
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return glm::vec4(value, value, value, 1.0f);
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}
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void Batch3D::xSprite(float w, float h, const UVRegion& uv, const glm::vec4 tint, bool shading) {
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face(
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glm::vec3(-w * 0.25f, 0.0f, -w * 0.25f),
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w, h,
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glm::vec3(1, 0, 0),
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glm::vec3(0, 1, 0),
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uv, (shading ? do_tint(1.0f)*tint : tint)
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);
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face(
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glm::vec3(w * 0.25f, 0.0f, w * 0.5f - w * 0.25f),
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w, h,
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glm::vec3(0, 0, -1),
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glm::vec3(0, 1, 0),
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uv, (shading ? do_tint(0.9f)*tint : tint)
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);
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}
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void Batch3D::cube(
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const glm::vec3 coord,
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const glm::vec3 size,
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const UVRegion(&texfaces)[6],
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const glm::vec4 tint,
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bool shading
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) {
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const glm::vec3 X(1.0f, 0.0f, 0.0f);
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const glm::vec3 Y(0.0f, 1.0f, 0.0f);
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const glm::vec3 Z(0.0f, 0.0f, 1.0f);
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face(
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coord+glm::vec3(0.0f, 0.0f, 0.0f),
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size.x, size.y, X, Y, texfaces[5],
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(shading ? do_tint(0.8)*tint : tint)
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);
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face(
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coord+glm::vec3(size.x, 0.0f, -size.z),
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size.x, size.y, -X, Y, texfaces[4],
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(shading ? do_tint(0.8f)*tint : tint)
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);
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face(
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coord+glm::vec3(0.0f, size.y, 0.0f),
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size.x, size.z, X, -Z, texfaces[3],
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(shading ? do_tint(1.0f)*tint : tint)
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);
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face(
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coord+glm::vec3(0.0f, 0.0f, -size.z),
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size.x, size.z, X, Z, texfaces[2],
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(shading ? do_tint(0.7f)*tint : tint)
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);
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face(
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coord+glm::vec3(0.0f, 0.0f, -size.z),
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size.z, size.y, Z, Y, texfaces[0],
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(shading ? do_tint(0.9f)*tint : tint)
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);
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face(
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coord+glm::vec3(size.x, 0.0f, 0.0f),
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size.z, size.y, -Z, Y, texfaces[1],
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(shading ? do_tint(0.9f)*tint : tint)
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);
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}
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void Batch3D::blockCube(
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const glm::vec3 size,
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const UVRegion(&texfaces)[6],
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const glm::vec4 tint,
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bool shading
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) {
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cube((1.0f - size) * -0.5f, size, texfaces, tint, shading);
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}
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void Batch3D::point(glm::vec3 coord, glm::vec2 uv, glm::vec4 tint) {
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vertex(coord, uv, tint.r, tint.g, tint.b, tint.a);
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}
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void Batch3D::point(glm::vec3 coord, glm::vec4 tint) {
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point(coord, glm::vec2(), tint);
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}
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void Batch3D::flush() {
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mesh->reload(buffer, index / B3D_VERTEX_SIZE);
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mesh->draw();
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index = 0;
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}
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void Batch3D::flushPoints() {
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mesh->reload(buffer, index / B3D_VERTEX_SIZE);
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mesh->draw(GL_POINTS);
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index = 0;
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}
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