3dphotoshoot
annotate src/gfxstate.cc @ 10:c71c477521ca
converting to GLES2 and C++
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Sun, 31 May 2015 00:40:26 +0300 |
| parents | |
| children |
| rev | line source |
|---|---|
| nuclear@10 | 1 #include <stack> |
| nuclear@10 | 2 #include "vmath/vmath.h" |
| nuclear@10 | 3 #include "gfxstate.h" |
| nuclear@10 | 4 |
| nuclear@10 | 5 static std::stack<Matrix4x4> mstack[NUM_MATRICES]; |
| nuclear@10 | 6 |
| nuclear@10 | 7 static bool init_stack(int midx) |
| nuclear@10 | 8 { |
| nuclear@10 | 9 if(mstack[midx].empty()) { |
| nuclear@10 | 10 mstack[midx].push(Matrix4x4::identity); |
| nuclear@10 | 11 return true; |
| nuclear@10 | 12 } |
| nuclear@10 | 13 return false; |
| nuclear@10 | 14 } |
| nuclear@10 | 15 |
| nuclear@10 | 16 void push_matrix(int midx) |
| nuclear@10 | 17 { |
| nuclear@10 | 18 init_stack(midx); |
| nuclear@10 | 19 mstack[midx].push(mstack[midx].top()); |
| nuclear@10 | 20 } |
| nuclear@10 | 21 |
| nuclear@10 | 22 void pop_matrix(int midx) |
| nuclear@10 | 23 { |
| nuclear@10 | 24 if(!mstack[midx].empty()) { |
| nuclear@10 | 25 mstack[midx].pop(); |
| nuclear@10 | 26 } |
| nuclear@10 | 27 } |
| nuclear@10 | 28 |
| nuclear@10 | 29 void set_identity_matrix(int midx) |
| nuclear@10 | 30 { |
| nuclear@10 | 31 set_matrix4x4(midx, Matrix4x4::identity); |
| nuclear@10 | 32 } |
| nuclear@10 | 33 |
| nuclear@10 | 34 void set_matrix(int midx, const float *m) |
| nuclear@10 | 35 { |
| nuclear@10 | 36 Matrix4x4 tmp; |
| nuclear@10 | 37 memcpy(tmp[0], m, 16 * sizeof *m); |
| nuclear@10 | 38 set_matrix4x4(midx, tmp.transposed()); |
| nuclear@10 | 39 } |
| nuclear@10 | 40 |
| nuclear@10 | 41 void mult_matrix(int midx, const float *m) |
| nuclear@10 | 42 { |
| nuclear@10 | 43 Matrix4x4 tmp; |
| nuclear@10 | 44 memcpy(tmp[0], m, 16 * sizeof *m); |
| nuclear@10 | 45 mult_matrix4x4(midx, tmp.transposed()); |
| nuclear@10 | 46 } |
| nuclear@10 | 47 |
| nuclear@10 | 48 void get_matrix(int midx, float *m) |
| nuclear@10 | 49 { |
| nuclear@10 | 50 Matrix4x4 tmp = get_matrix4x4(midx); |
| nuclear@10 | 51 tmp.transpose(); |
| nuclear@10 | 52 memcpy(m, tmp[0], 16 * sizeof *m); |
| nuclear@10 | 53 } |
| nuclear@10 | 54 |
| nuclear@10 | 55 void set_matrix4x4(int midx, const Matrix4x4 &m) |
| nuclear@10 | 56 { |
| nuclear@10 | 57 mstack[midx].top() = m; |
| nuclear@10 | 58 } |
| nuclear@10 | 59 |
| nuclear@10 | 60 void mult_matrix4x4(int midx, const Matrix4x4 &m) |
| nuclear@10 | 61 { |
| nuclear@10 | 62 mstack[midx].top() *= m; |
| nuclear@10 | 63 } |
| nuclear@10 | 64 |
| nuclear@10 | 65 Matrix4x4 &get_matrix4x4(int midx) |
| nuclear@10 | 66 { |
| nuclear@10 | 67 return mstack[midx].top(); |
| nuclear@10 | 68 } |