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-rw-r--r--include/linmath.h605
-rw-r--r--include/render/buffer.h19
-rw-r--r--include/render/mesh.h43
-rw-r--r--include/render/renderer.h107
-rw-r--r--include/render/shader.h25
-rw-r--r--include/render/util.h8
-rw-r--r--include/render/window.h32
7 files changed, 839 insertions, 0 deletions
diff --git a/include/linmath.h b/include/linmath.h
new file mode 100644
index 0000000..dd329e1
--- /dev/null
+++ b/include/linmath.h
@@ -0,0 +1,605 @@
+#ifndef LINMATH_H
+#define LINMATH_H
+
+#include <string.h>
+#include <math.h>
+#include <string.h>
+
+#ifdef LINMATH_NO_INLINE
+#define LINMATH_H_FUNC static
+#else
+#define LINMATH_H_FUNC static inline
+#endif
+
+#define LINMATH_H_DEFINE_VEC(n) \
+typedef float vec##n[n]; \
+LINMATH_H_FUNC void vec##n##_add(vec##n r, vec##n const a, vec##n const b) \
+{ \
+ int i; \
+ for(i=0; i<n; ++i) \
+ r[i] = a[i] + b[i]; \
+} \
+LINMATH_H_FUNC void vec##n##_sub(vec##n r, vec##n const a, vec##n const b) \
+{ \
+ int i; \
+ for(i=0; i<n; ++i) \
+ r[i] = a[i] - b[i]; \
+} \
+LINMATH_H_FUNC void vec##n##_scale(vec##n r, vec##n const v, float const s) \
+{ \
+ int i; \
+ for(i=0; i<n; ++i) \
+ r[i] = v[i] * s; \
+} \
+LINMATH_H_FUNC float vec##n##_mul_inner(vec##n const a, vec##n const b) \
+{ \
+ float p = 0.f; \
+ int i; \
+ for(i=0; i<n; ++i) \
+ p += b[i]*a[i]; \
+ return p; \
+} \
+LINMATH_H_FUNC float vec##n##_len(vec##n const v) \
+{ \
+ return sqrtf(vec##n##_mul_inner(v,v)); \
+} \
+LINMATH_H_FUNC void vec##n##_norm(vec##n r, vec##n const v) \
+{ \
+ float k = 1.f / vec##n##_len(v); \
+ vec##n##_scale(r, v, k); \
+} \
+LINMATH_H_FUNC void vec##n##_min(vec##n r, vec##n const a, vec##n const b) \
+{ \
+ int i; \
+ for(i=0; i<n; ++i) \
+ r[i] = a[i]<b[i] ? a[i] : b[i]; \
+} \
+LINMATH_H_FUNC void vec##n##_max(vec##n r, vec##n const a, vec##n const b) \
+{ \
+ int i; \
+ for(i=0; i<n; ++i) \
+ r[i] = a[i]>b[i] ? a[i] : b[i]; \
+} \
+LINMATH_H_FUNC void vec##n##_dup(vec##n r, vec##n const src) \
+{ \
+ int i; \
+ for(i=0; i<n; ++i) \
+ r[i] = src[i]; \
+}
+
+LINMATH_H_DEFINE_VEC(2)
+LINMATH_H_DEFINE_VEC(3)
+LINMATH_H_DEFINE_VEC(4)
+
+LINMATH_H_FUNC void vec3_mul_cross(vec3 r, vec3 const a, vec3 const b)
+{
+ r[0] = a[1]*b[2] - a[2]*b[1];
+ r[1] = a[2]*b[0] - a[0]*b[2];
+ r[2] = a[0]*b[1] - a[1]*b[0];
+}
+
+LINMATH_H_FUNC void vec3_reflect(vec3 r, vec3 const v, vec3 const n)
+{
+ float p = 2.f * vec3_mul_inner(v, n);
+ int i;
+ for(i=0;i<3;++i)
+ r[i] = v[i] - p*n[i];
+}
+
+LINMATH_H_FUNC void vec4_mul_cross(vec4 r, vec4 const a, vec4 const b)
+{
+ r[0] = a[1]*b[2] - a[2]*b[1];
+ r[1] = a[2]*b[0] - a[0]*b[2];
+ r[2] = a[0]*b[1] - a[1]*b[0];
+ r[3] = 1.f;
+}
+
+LINMATH_H_FUNC void vec4_reflect(vec4 r, vec4 const v, vec4 const n)
+{
+ float p = 2.f*vec4_mul_inner(v, n);
+ int i;
+ for(i=0;i<4;++i)
+ r[i] = v[i] - p*n[i];
+}
+
+typedef vec4 mat4x4[4];
+LINMATH_H_FUNC void mat4x4_identity(mat4x4 M)
+{
+ int i, j;
+ for(i=0; i<4; ++i)
+ for(j=0; j<4; ++j)
+ M[i][j] = i==j ? 1.f : 0.f;
+}
+LINMATH_H_FUNC void mat4x4_dup(mat4x4 M, mat4x4 const N)
+{
+ int i;
+ for(i=0; i<4; ++i)
+ vec4_dup(M[i], N[i]);
+}
+LINMATH_H_FUNC void mat4x4_row(vec4 r, mat4x4 const M, int i)
+{
+ int k;
+ for(k=0; k<4; ++k)
+ r[k] = M[k][i];
+}
+LINMATH_H_FUNC void mat4x4_col(vec4 r, mat4x4 const M, int i)
+{
+ int k;
+ for(k=0; k<4; ++k)
+ r[k] = M[i][k];
+}
+LINMATH_H_FUNC void mat4x4_transpose(mat4x4 M, mat4x4 const N)
+{
+ // Note: if M and N are the same, the user has to
+ // explicitly make a copy of M and set it to N.
+ int i, j;
+ for(j=0; j<4; ++j)
+ for(i=0; i<4; ++i)
+ M[i][j] = N[j][i];
+}
+LINMATH_H_FUNC void mat4x4_add(mat4x4 M, mat4x4 const a, mat4x4 const b)
+{
+ int i;
+ for(i=0; i<4; ++i)
+ vec4_add(M[i], a[i], b[i]);
+}
+LINMATH_H_FUNC void mat4x4_sub(mat4x4 M, mat4x4 const a, mat4x4 const b)
+{
+ int i;
+ for(i=0; i<4; ++i)
+ vec4_sub(M[i], a[i], b[i]);
+}
+LINMATH_H_FUNC void mat4x4_scale(mat4x4 M, mat4x4 const a, float k)
+{
+ int i;
+ for(i=0; i<4; ++i)
+ vec4_scale(M[i], a[i], k);
+}
+LINMATH_H_FUNC void mat4x4_scale_aniso(mat4x4 M, mat4x4 const a, float x, float y, float z)
+{
+ vec4_scale(M[0], a[0], x);
+ vec4_scale(M[1], a[1], y);
+ vec4_scale(M[2], a[2], z);
+ vec4_dup(M[3], a[3]);
+}
+LINMATH_H_FUNC void mat4x4_mul(mat4x4 M, mat4x4 const a, mat4x4 const b)
+{
+ mat4x4 temp;
+ int k, r, c;
+ for(c=0; c<4; ++c) for(r=0; r<4; ++r) {
+ temp[c][r] = 0.f;
+ for(k=0; k<4; ++k)
+ temp[c][r] += a[k][r] * b[c][k];
+ }
+ mat4x4_dup(M, temp);
+}
+LINMATH_H_FUNC void mat4x4_mul_vec4(vec4 r, mat4x4 const M, vec4 const v)
+{
+ int i, j;
+ for(j=0; j<4; ++j) {
+ r[j] = 0.f;
+ for(i=0; i<4; ++i)
+ r[j] += M[i][j] * v[i];
+ }
+}
+LINMATH_H_FUNC void mat4x4_translate(mat4x4 T, float x, float y, float z)
+{
+ mat4x4_identity(T);
+ T[3][0] = x;
+ T[3][1] = y;
+ T[3][2] = z;
+}
+LINMATH_H_FUNC void mat4x4_translate_in_place(mat4x4 M, float x, float y, float z)
+{
+ vec4 t = {x, y, z, 0};
+ vec4 r;
+ int i;
+ for (i = 0; i < 4; ++i) {
+ mat4x4_row(r, M, i);
+ M[3][i] += vec4_mul_inner(r, t);
+ }
+}
+LINMATH_H_FUNC void mat4x4_from_vec3_mul_outer(mat4x4 M, vec3 const a, vec3 const b)
+{
+ int i, j;
+ for(i=0; i<4; ++i) for(j=0; j<4; ++j)
+ M[i][j] = i<3 && j<3 ? a[i] * b[j] : 0.f;
+}
+LINMATH_H_FUNC void mat4x4_rotate(mat4x4 R, mat4x4 const M, float x, float y, float z, float angle)
+{
+ float s = sinf(angle);
+ float c = cosf(angle);
+ vec3 u = {x, y, z};
+
+ if(vec3_len(u) > 1e-4) {
+ vec3_norm(u, u);
+ mat4x4 T;
+ mat4x4_from_vec3_mul_outer(T, u, u);
+
+ mat4x4 S = {
+ { 0, u[2], -u[1], 0},
+ {-u[2], 0, u[0], 0},
+ { u[1], -u[0], 0, 0},
+ { 0, 0, 0, 0}
+ };
+ mat4x4_scale(S, S, s);
+
+ mat4x4 C;
+ mat4x4_identity(C);
+ mat4x4_sub(C, C, T);
+
+ mat4x4_scale(C, C, c);
+
+ mat4x4_add(T, T, C);
+ mat4x4_add(T, T, S);
+
+ T[3][3] = 1.f;
+ mat4x4_mul(R, M, T);
+ } else {
+ mat4x4_dup(R, M);
+ }
+}
+LINMATH_H_FUNC void mat4x4_rotate_X(mat4x4 Q, mat4x4 const M, float angle)
+{
+ float s = sinf(angle);
+ float c = cosf(angle);
+ mat4x4 R = {
+ {1.f, 0.f, 0.f, 0.f},
+ {0.f, c, s, 0.f},
+ {0.f, -s, c, 0.f},
+ {0.f, 0.f, 0.f, 1.f}
+ };
+ mat4x4_mul(Q, M, R);
+}
+LINMATH_H_FUNC void mat4x4_rotate_Y(mat4x4 Q, mat4x4 const M, float angle)
+{
+ float s = sinf(angle);
+ float c = cosf(angle);
+ mat4x4 R = {
+ { c, 0.f, -s, 0.f},
+ { 0.f, 1.f, 0.f, 0.f},
+ { s, 0.f, c, 0.f},
+ { 0.f, 0.f, 0.f, 1.f}
+ };
+ mat4x4_mul(Q, M, R);
+}
+LINMATH_H_FUNC void mat4x4_rotate_Z(mat4x4 Q, mat4x4 const M, float angle)
+{
+ float s = sinf(angle);
+ float c = cosf(angle);
+ mat4x4 R = {
+ { c, s, 0.f, 0.f},
+ { -s, c, 0.f, 0.f},
+ { 0.f, 0.f, 1.f, 0.f},
+ { 0.f, 0.f, 0.f, 1.f}
+ };
+ mat4x4_mul(Q, M, R);
+}
+LINMATH_H_FUNC void mat4x4_invert(mat4x4 T, mat4x4 const M)
+{
+ float s[6];
+ float c[6];
+ s[0] = M[0][0]*M[1][1] - M[1][0]*M[0][1];
+ s[1] = M[0][0]*M[1][2] - M[1][0]*M[0][2];
+ s[2] = M[0][0]*M[1][3] - M[1][0]*M[0][3];
+ s[3] = M[0][1]*M[1][2] - M[1][1]*M[0][2];
+ s[4] = M[0][1]*M[1][3] - M[1][1]*M[0][3];
+ s[5] = M[0][2]*M[1][3] - M[1][2]*M[0][3];
+
+ c[0] = M[2][0]*M[3][1] - M[3][0]*M[2][1];
+ c[1] = M[2][0]*M[3][2] - M[3][0]*M[2][2];
+ c[2] = M[2][0]*M[3][3] - M[3][0]*M[2][3];
+ c[3] = M[2][1]*M[3][2] - M[3][1]*M[2][2];
+ c[4] = M[2][1]*M[3][3] - M[3][1]*M[2][3];
+ c[5] = M[2][2]*M[3][3] - M[3][2]*M[2][3];
+
+ /* Assumes it is invertible */
+ float idet = 1.0f/( s[0]*c[5]-s[1]*c[4]+s[2]*c[3]+s[3]*c[2]-s[4]*c[1]+s[5]*c[0] );
+
+ T[0][0] = ( M[1][1] * c[5] - M[1][2] * c[4] + M[1][3] * c[3]) * idet;
+ T[0][1] = (-M[0][1] * c[5] + M[0][2] * c[4] - M[0][3] * c[3]) * idet;
+ T[0][2] = ( M[3][1] * s[5] - M[3][2] * s[4] + M[3][3] * s[3]) * idet;
+ T[0][3] = (-M[2][1] * s[5] + M[2][2] * s[4] - M[2][3] * s[3]) * idet;
+
+ T[1][0] = (-M[1][0] * c[5] + M[1][2] * c[2] - M[1][3] * c[1]) * idet;
+ T[1][1] = ( M[0][0] * c[5] - M[0][2] * c[2] + M[0][3] * c[1]) * idet;
+ T[1][2] = (-M[3][0] * s[5] + M[3][2] * s[2] - M[3][3] * s[1]) * idet;
+ T[1][3] = ( M[2][0] * s[5] - M[2][2] * s[2] + M[2][3] * s[1]) * idet;
+
+ T[2][0] = ( M[1][0] * c[4] - M[1][1] * c[2] + M[1][3] * c[0]) * idet;
+ T[2][1] = (-M[0][0] * c[4] + M[0][1] * c[2] - M[0][3] * c[0]) * idet;
+ T[2][2] = ( M[3][0] * s[4] - M[3][1] * s[2] + M[3][3] * s[0]) * idet;
+ T[2][3] = (-M[2][0] * s[4] + M[2][1] * s[2] - M[2][3] * s[0]) * idet;
+
+ T[3][0] = (-M[1][0] * c[3] + M[1][1] * c[1] - M[1][2] * c[0]) * idet;
+ T[3][1] = ( M[0][0] * c[3] - M[0][1] * c[1] + M[0][2] * c[0]) * idet;
+ T[3][2] = (-M[3][0] * s[3] + M[3][1] * s[1] - M[3][2] * s[0]) * idet;
+ T[3][3] = ( M[2][0] * s[3] - M[2][1] * s[1] + M[2][2] * s[0]) * idet;
+}
+LINMATH_H_FUNC void mat4x4_orthonormalize(mat4x4 R, mat4x4 const M)
+{
+ mat4x4_dup(R, M);
+ float s = 1.f;
+ vec3 h;
+
+ vec3_norm(R[2], R[2]);
+
+ s = vec3_mul_inner(R[1], R[2]);
+ vec3_scale(h, R[2], s);
+ vec3_sub(R[1], R[1], h);
+ vec3_norm(R[1], R[1]);
+
+ s = vec3_mul_inner(R[0], R[2]);
+ vec3_scale(h, R[2], s);
+ vec3_sub(R[0], R[0], h);
+
+ s = vec3_mul_inner(R[0], R[1]);
+ vec3_scale(h, R[1], s);
+ vec3_sub(R[0], R[0], h);
+ vec3_norm(R[0], R[0]);
+}
+
+LINMATH_H_FUNC void mat4x4_frustum(mat4x4 M, float l, float r, float b, float t, float n, float f)
+{
+ M[0][0] = 2.f*n/(r-l);
+ M[0][1] = M[0][2] = M[0][3] = 0.f;
+
+ M[1][1] = 2.f*n/(t-b);
+ M[1][0] = M[1][2] = M[1][3] = 0.f;
+
+ M[2][0] = (r+l)/(r-l);
+ M[2][1] = (t+b)/(t-b);
+ M[2][2] = -(f+n)/(f-n);
+ M[2][3] = -1.f;
+
+ M[3][2] = -2.f*(f*n)/(f-n);
+ M[3][0] = M[3][1] = M[3][3] = 0.f;
+}
+LINMATH_H_FUNC void mat4x4_ortho(mat4x4 M, float l, float r, float b, float t, float n, float f)
+{
+ M[0][0] = 2.f/(r-l);
+ M[0][1] = M[0][2] = M[0][3] = 0.f;
+
+ M[1][1] = 2.f/(t-b);
+ M[1][0] = M[1][2] = M[1][3] = 0.f;
+
+ M[2][2] = -2.f/(f-n);
+ M[2][0] = M[2][1] = M[2][3] = 0.f;
+
+ M[3][0] = -(r+l)/(r-l);
+ M[3][1] = -(t+b)/(t-b);
+ M[3][2] = -(f+n)/(f-n);
+ M[3][3] = 1.f;
+}
+LINMATH_H_FUNC void mat4x4_perspective(mat4x4 m, float y_fov, float aspect, float n, float f)
+{
+ /* NOTE: Degrees are an unhandy unit to work with.
+ * linmath.h uses radians for everything! */
+ float const a = 1.f / tanf(y_fov / 2.f);
+
+ m[0][0] = a / aspect;
+ m[0][1] = 0.f;
+ m[0][2] = 0.f;
+ m[0][3] = 0.f;
+
+ m[1][0] = 0.f;
+ m[1][1] = a;
+ m[1][2] = 0.f;
+ m[1][3] = 0.f;
+
+ m[2][0] = 0.f;
+ m[2][1] = 0.f;
+ m[2][2] = -((f + n) / (f - n));
+ m[2][3] = -1.f;
+
+ m[3][0] = 0.f;
+ m[3][1] = 0.f;
+ m[3][2] = -((2.f * f * n) / (f - n));
+ m[3][3] = 0.f;
+}
+LINMATH_H_FUNC void mat4x4_look_at(mat4x4 m, vec3 const eye, vec3 const center, vec3 const up)
+{
+ /* Adapted from Android's OpenGL Matrix.java. */
+ /* See the OpenGL GLUT documentation for gluLookAt for a description */
+ /* of the algorithm. We implement it in a straightforward way: */
+
+ /* TODO: The negation of of can be spared by swapping the order of
+ * operands in the following cross products in the right way. */
+ vec3 f;
+ vec3_sub(f, center, eye);
+ vec3_norm(f, f);
+
+ vec3 s;
+ vec3_mul_cross(s, f, up);
+ vec3_norm(s, s);
+
+ vec3 t;
+ vec3_mul_cross(t, s, f);
+
+ m[0][0] = s[0];
+ m[0][1] = t[0];
+ m[0][2] = -f[0];
+ m[0][3] = 0.f;
+
+ m[1][0] = s[1];
+ m[1][1] = t[1];
+ m[1][2] = -f[1];
+ m[1][3] = 0.f;
+
+ m[2][0] = s[2];
+ m[2][1] = t[2];
+ m[2][2] = -f[2];
+ m[2][3] = 0.f;
+
+ m[3][0] = 0.f;
+ m[3][1] = 0.f;
+ m[3][2] = 0.f;
+ m[3][3] = 1.f;
+
+ mat4x4_translate_in_place(m, -eye[0], -eye[1], -eye[2]);
+}
+
+typedef float quat[4];
+#define quat_add vec4_add
+#define quat_sub vec4_sub
+#define quat_norm vec4_norm
+#define quat_scale vec4_scale
+#define quat_mul_inner vec4_mul_inner
+
+LINMATH_H_FUNC void quat_identity(quat q)
+{
+ q[0] = q[1] = q[2] = 0.f;
+ q[3] = 1.f;
+}
+LINMATH_H_FUNC void quat_mul(quat r, quat const p, quat const q)
+{
+ vec3 w, tmp;
+
+ vec3_mul_cross(tmp, p, q);
+ vec3_scale(w, p, q[3]);
+ vec3_add(tmp, tmp, w);
+ vec3_scale(w, q, p[3]);
+ vec3_add(tmp, tmp, w);
+
+ vec3_dup(r, tmp);
+ r[3] = p[3]*q[3] - vec3_mul_inner(p, q);
+}
+LINMATH_H_FUNC void quat_conj(quat r, quat const q)
+{
+ int i;
+ for(i=0; i<3; ++i)
+ r[i] = -q[i];
+ r[3] = q[3];
+}
+LINMATH_H_FUNC void quat_rotate(quat r, float angle, vec3 const axis) {
+ vec3 axis_norm;
+ vec3_norm(axis_norm, axis);
+ float s = sinf(angle / 2);
+ float c = cosf(angle / 2);
+ vec3_scale(r, axis_norm, s);
+ r[3] = c;
+}
+LINMATH_H_FUNC void quat_mul_vec3(vec3 r, quat const q, vec3 const v)
+{
+/*
+ * Method by Fabian 'ryg' Giessen (of Farbrausch)
+t = 2 * cross(q.xyz, v)
+v' = v + q.w * t + cross(q.xyz, t)
+ */
+ vec3 t;
+ vec3 q_xyz = {q[0], q[1], q[2]};
+ vec3 u = {q[0], q[1], q[2]};
+
+ vec3_mul_cross(t, q_xyz, v);
+ vec3_scale(t, t, 2);
+
+ vec3_mul_cross(u, q_xyz, t);
+ vec3_scale(t, t, q[3]);
+
+ vec3_add(r, v, t);
+ vec3_add(r, r, u);
+}
+LINMATH_H_FUNC void mat4x4_from_quat(mat4x4 M, quat const q)
+{
+ float a = q[3];
+ float b = q[0];
+ float c = q[1];
+ float d = q[2];
+ float a2 = a*a;
+ float b2 = b*b;
+ float c2 = c*c;
+ float d2 = d*d;
+
+ M[0][0] = a2 + b2 - c2 - d2;
+ M[0][1] = 2.f*(b*c + a*d);
+ M[0][2] = 2.f*(b*d - a*c);
+ M[0][3] = 0.f;
+
+ M[1][0] = 2*(b*c - a*d);
+ M[1][1] = a2 - b2 + c2 - d2;
+ M[1][2] = 2.f*(c*d + a*b);
+ M[1][3] = 0.f;
+
+ M[2][0] = 2.f*(b*d + a*c);
+ M[2][1] = 2.f*(c*d - a*b);
+ M[2][2] = a2 - b2 - c2 + d2;
+ M[2][3] = 0.f;
+
+ M[3][0] = M[3][1] = M[3][2] = 0.f;
+ M[3][3] = 1.f;
+}
+
+LINMATH_H_FUNC void mat4x4o_mul_quat(mat4x4 R, mat4x4 const M, quat const q)
+{
+/* XXX: The way this is written only works for orthogonal matrices. */
+/* TODO: Take care of non-orthogonal case. */
+ quat_mul_vec3(R[0], q, M[0]);
+ quat_mul_vec3(R[1], q, M[1]);
+ quat_mul_vec3(R[2], q, M[2]);
+
+ R[3][0] = R[3][1] = R[3][2] = 0.f;
+ R[0][3] = M[0][3];
+ R[1][3] = M[1][3];
+ R[2][3] = M[2][3];
+ R[3][3] = M[3][3]; // typically 1.0, but here we make it general
+}
+LINMATH_H_FUNC void quat_from_mat4x4(quat q, mat4x4 const M)
+{
+ float r=0.f;
+ int i;
+
+ int perm[] = { 0, 1, 2, 0, 1 };
+ int *p = perm;
+
+ for(i = 0; i<3; i++) {
+ float m = M[i][i];
+ if( m < r )
+ continue;
+ m = r;
+ p = &perm[i];
+ }
+
+ r = sqrtf(1.f + M[p[0]][p[0]] - M[p[1]][p[1]] - M[p[2]][p[2]] );
+
+ if(r < 1e-6) {
+ q[0] = 1.f;
+ q[1] = q[2] = q[3] = 0.f;
+ return;
+ }
+
+ q[0] = r/2.f;
+ q[1] = (M[p[0]][p[1]] - M[p[1]][p[0]])/(2.f*r);
+ q[2] = (M[p[2]][p[0]] - M[p[0]][p[2]])/(2.f*r);
+ q[3] = (M[p[2]][p[1]] - M[p[1]][p[2]])/(2.f*r);
+}
+
+LINMATH_H_FUNC void mat4x4_arcball(mat4x4 R, mat4x4 const M, vec2 const _a, vec2 const _b, float s)
+{
+ vec2 a; memcpy(a, _a, sizeof(a));
+ vec2 b; memcpy(b, _b, sizeof(b));
+
+ float z_a = 0.;
+ float z_b = 0.;
+
+ if(vec2_len(a) < 1.) {
+ z_a = sqrtf(1. - vec2_mul_inner(a, a));
+ } else {
+ vec2_norm(a, a);
+ }
+
+ if(vec2_len(b) < 1.) {
+ z_b = sqrtf(1. - vec2_mul_inner(b, b));
+ } else {
+ vec2_norm(b, b);
+ }
+
+ vec3 a_ = {a[0], a[1], z_a};
+ vec3 b_ = {b[0], b[1], z_b};
+
+ vec3 c_;
+ vec3_mul_cross(c_, a_, b_);
+
+ float const angle = acos(vec3_mul_inner(a_, b_)) * s;
+ mat4x4_rotate(R, M, c_[0], c_[1], c_[2], angle);
+}
+#endif
diff --git a/include/render/buffer.h b/include/render/buffer.h
new file mode 100644
index 0000000..7a203b7
--- /dev/null
+++ b/include/render/buffer.h
@@ -0,0 +1,19 @@
+#ifndef _RENDER_BUFFER_H_
+#define _RENDER_BUFFER_H_
+
+#include <vulkan/vulkan.h>
+
+struct renderer;
+struct buffer {
+ VkBuffer buffer;
+ VkDeviceMemory memory;
+};
+
+VkResult buffer_create(struct renderer *ren, VkDeviceSize size,
+ VkBufferUsageFlags usage, VkMemoryPropertyFlags props, struct buffer *buf);
+void buffer_destroy(struct renderer *ren, struct buffer *buf);
+VkResult create_image(struct renderer *ren, VkExtent2D extent, uint32_t mip_level, VkFormat format, VkImageTiling tiling,
+ VkImageUsageFlags usage, VkMemoryPropertyFlags props, VkImage *img, VkDeviceMemory *memory);
+VkResult create_image_view(VkDevice gpu, VkImage image, VkFormat format, VkImageAspectFlags flags, VkImageView *view);
+
+#endif
diff --git a/include/render/mesh.h b/include/render/mesh.h
new file mode 100644
index 0000000..aed4836
--- /dev/null
+++ b/include/render/mesh.h
@@ -0,0 +1,43 @@
+#ifndef _RENDER_MESH_H_
+#define _RENDER_MESH_H_
+
+#include <vulkan/vulkan.h>
+#include <stdint.h>
+#include "render/buffer.h"
+
+#include "linmath.h"
+
+struct renderer;
+
+struct vec3 {
+ float x, y, z;
+};
+
+struct vec4 {
+ float x, y, z, w;
+};
+
+struct ubo {
+ mat4x4 model;
+ mat4x4 view;
+ mat4x4 proj;
+};
+
+struct vertex {
+ struct vec3 position;
+ struct vec3 normal;
+ struct vec4 color;
+};
+
+struct mesh {
+ struct buffer vertex;
+ struct buffer index;
+ mat4x4 position;
+ size_t index_count;
+};
+
+struct mesh upload_mesh(struct renderer *ren, size_t vertex_count, struct vertex vertices[vertex_count],
+ size_t index_count, uint32_t indices[index_count], struct vec3 position);
+void mesh_destroy(struct renderer *ren, struct mesh *mesh);
+
+#endif
diff --git a/include/render/renderer.h b/include/render/renderer.h
new file mode 100644
index 0000000..bae799d
--- /dev/null
+++ b/include/render/renderer.h
@@ -0,0 +1,107 @@
+#ifndef _RENDER_H_
+#define _RENDER_H_
+
+#include <vulkan/vulkan.h>
+#include <sys/types.h>
+#include "render/window.h"
+#include "render/buffer.h"
+#include "render/shader.h"
+#include "render/mesh.h"
+
+#define MAX_FRAMES 2
+
+struct image {
+ VkImage image;
+ VkDeviceMemory memory;
+ VkImageView view;
+};
+
+struct renderer {
+ struct window *win;
+ VkInstance instance;
+ VkSurfaceKHR surface;
+
+ struct {
+ uint32_t cap, len;
+ struct phy_gpu {
+ VkPhysicalDevice gpu;
+ size_t graphics_queue;
+ size_t present_queue;
+ struct surface_caps {
+ VkSurfaceCapabilitiesKHR caps;
+ struct {
+ uint32_t len;
+ VkSurfaceFormatKHR *data;
+ } formats;
+ struct {
+ uint32_t len;
+ VkPresentModeKHR *data;
+ } present_modes;
+ } surface_caps;
+ } *gpus;
+ struct phy_gpu *chosen;
+ } phy_gpus;
+
+ struct {
+ VkDevice device;
+ VkQueue gfx_queue;
+ VkQueue present_queue;
+ } gpu;
+
+ struct {
+ VkSwapchainKHR swapchain;
+ VkFormat format;
+ VkExtent2D extent;
+ struct {
+ uint32_t len;
+ struct {
+ VkImage image;
+ VkImageView view;
+ VkFramebuffer framebuffer;
+ } *data;
+ } images;
+ } swapchain;
+
+ VkRenderPass render_pass;
+
+ struct {
+ VkCommandPool pool;
+ VkCommandBuffer buffers[MAX_FRAMES];
+ } command;
+
+ struct {
+ VkPipelineLayout layout;
+ VkPipeline gfx;
+ } pipeline;
+
+ struct {
+ VkSemaphore image_available[MAX_FRAMES];
+ VkSemaphore render_finished[MAX_FRAMES];
+ VkFence in_flight[MAX_FRAMES];
+ } locks;
+
+ struct {
+ VkDescriptorSetLayout layout;
+ VkDescriptorPool pool;
+ VkDescriptorSet sets[MAX_FRAMES];
+ } descriptor;
+
+ struct image depth;
+ struct {
+ struct buffer buffer;
+ void *data;
+ } uniform[MAX_FRAMES];
+
+ VkSampler sampler;
+ VkSampleCountFlagBits msaa_samples;
+
+ uint32_t mip_levels;
+ uint32_t current_frame;
+};
+
+struct renderer *renderer_init(struct window *win);
+void renderer_destroy(struct renderer *ren);
+void renderer_draw(struct renderer *ren, size_t mesh_count, struct mesh meshes[mesh_count]);
+void renderer_resize(struct renderer *ren);
+
+#endif
diff --git a/include/render/shader.h b/include/render/shader.h
new file mode 100644
index 0000000..0e827df
--- /dev/null
+++ b/include/render/shader.h
@@ -0,0 +1,25 @@
+#ifndef _RENDER_SHADER_H_
+#define _RENDER_SHADER_H_
+
+#include <stdbool.h>
+#include <vulkan/vulkan.h>
+
+struct renderer;
+
+struct shader {
+ size_t len;
+ uint8_t *code;
+ VkShaderStageFlagBits stage;
+};
+
+struct shader_input {
+ size_t desc_count;
+ VkVertexInputBindingDescription *descs;
+ size_t attr_count;
+ VkVertexInputAttributeDescription *attrs;
+};
+
+VkResult shader_create_module(struct renderer *ren, const size_t len, uint8_t code[len], VkShaderModule *module);
+bool shader_load(const char *filename, struct shader *shader);
+
+#endif
diff --git a/include/render/util.h b/include/render/util.h
new file mode 100644
index 0000000..d7215f8
--- /dev/null
+++ b/include/render/util.h
@@ -0,0 +1,8 @@
+#ifndef _RENDER_UTIL_H_
+#define _RENDER_UTIL_H_
+
+#include <vulkan/vulkan.h>
+
+VkResult create_image_view(VkDevice gpu, VkImage image, VkFormat format, VkImageAspectFlags flags, VkImageView *view);
+
+#endif
diff --git a/include/render/window.h b/include/render/window.h
new file mode 100644
index 0000000..3ec9a12
--- /dev/null
+++ b/include/render/window.h
@@ -0,0 +1,32 @@
+#ifndef _WINDOW_H_
+#define _WINDOW_H_
+
+#include <wayland-client.h>
+#include <vulkan/vulkan.h>
+#include <vulkan/vulkan_wayland.h>
+#include <stdbool.h>
+#include "xdg-shell-protocol.h"
+#include "xdg-decoration-unstable-v1-protocol.h"
+
+struct window {
+ const char *title;
+
+ struct wl_display *dpy;
+ struct wl_registry *reg;
+ struct wl_compositor *comp;
+ struct zxdg_decoration_manager_v1 *deco_manager;
+ struct zxdg_toplevel_decoration_v1 *deco;
+ struct wl_surface *surface;
+ struct xdg_wm_base *xdg_base;
+ struct xdg_surface *xdg_surface;
+ struct xdg_toplevel *xdg_toplevel;
+
+ int32_t width, height;
+ bool resize, should_close;
+};
+
+struct window *window_init(const char *title);
+void window_destroy(struct window *win);
+VkSurfaceKHR window_create_vk_surface(VkInstance instance, struct window *win);
+
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-20 04:29:59 +0000