Jason Sams | 177f844 | 2010-10-29 10:19:21 -0700 | [diff] [blame^] | 1 | #pragma version(1) |
| 2 | #pragma rs java_package_name(com.android.balls) |
| 3 | #include "rs_graphics.rsh" |
| 4 | |
| 5 | #include "balls.rsh" |
| 6 | |
| 7 | #pragma stateFragment(parent) |
| 8 | |
| 9 | rs_program_fragment gPF; |
| 10 | rs_program_vertex gPV; |
| 11 | rs_program_raster gPR; |
| 12 | rs_program_store gPS; |
| 13 | rs_mesh partMesh; |
| 14 | rs_mesh arcMesh; |
| 15 | |
| 16 | typedef struct __attribute__((packed, aligned(4))) Point { |
| 17 | float2 position; |
| 18 | uchar4 color; |
| 19 | float size; |
| 20 | } Point_t; |
| 21 | Point_t *point; |
| 22 | Point_t *arc; |
| 23 | |
| 24 | typedef struct VpConsts { |
| 25 | //rs_matrix4x4 Proj; |
| 26 | rs_matrix4x4 MVP; |
| 27 | } VpConsts_t; |
| 28 | VpConsts_t *vpConstants; |
| 29 | |
| 30 | |
| 31 | #pragma rs export_func(initParts) |
| 32 | |
| 33 | rs_script physics_script; |
| 34 | |
| 35 | Ball_t *balls1; |
| 36 | Ball_t *balls2; |
| 37 | |
| 38 | static int frame = 0; |
| 39 | |
| 40 | void initParts(int w, int h) |
| 41 | { |
| 42 | uint32_t dimX = rsAllocationGetDimX(rsGetAllocation(balls1)); |
| 43 | |
| 44 | for (uint32_t ct=0; ct < dimX; ct++) { |
| 45 | balls1[ct].position.x = rsRand(0.f, (float)w); |
| 46 | balls1[ct].position.y = rsRand(0.f, (float)h); |
| 47 | balls1[ct].delta.x = 0.f; |
| 48 | balls1[ct].delta.y = 0.f; |
| 49 | balls1[ct].arcID = -1; |
| 50 | balls1[ct].color = 0.f; |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | |
| 55 | |
| 56 | int root() { |
| 57 | rsgClearColor(0.f, 0.f, 0.f, 1.f); |
| 58 | |
| 59 | BallControl_t bc; |
| 60 | Ball_t *bout; |
| 61 | |
| 62 | if (frame & 1) { |
| 63 | bc.ain = rsGetAllocation(balls2); |
| 64 | bc.aout = rsGetAllocation(balls1); |
| 65 | bout = balls2; |
| 66 | } else { |
| 67 | bc.ain = rsGetAllocation(balls1); |
| 68 | bc.aout = rsGetAllocation(balls2); |
| 69 | bout = balls1; |
| 70 | } |
| 71 | |
| 72 | bc.dimX = rsAllocationGetDimX(bc.ain); |
| 73 | bc.dt = 1.f / 30.f; |
| 74 | |
| 75 | rsForEach(physics_script, bc.ain, bc.aout, &bc); |
| 76 | |
| 77 | uint32_t arcIdx = 0; |
| 78 | for (uint32_t ct=0; ct < bc.dimX; ct++) { |
| 79 | point[ct].position = bout[ct].position; |
| 80 | point[ct].color = rsPackColorTo8888(bout[ct].color); |
| 81 | point[ct].size = 6.f + bout[ct].color.g * 6.f; |
| 82 | |
| 83 | if (bout[ct].arcID >= 0) { |
| 84 | arc[arcIdx].position = bout[ct].position; |
| 85 | arc[arcIdx].color.r = min(bout[ct].arcStr, 1.f) * 0xff; |
| 86 | arc[arcIdx].color.g = 0; |
| 87 | arc[arcIdx].color.b = 0; |
| 88 | arc[arcIdx].color.a = 0xff; |
| 89 | arc[arcIdx+1].position = bout[bout[ct].arcID].position; |
| 90 | arc[arcIdx+1].color = arc[arcIdx].color; |
| 91 | arcIdx += 2; |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | frame++; |
| 96 | rsgBindProgramFragment(gPF); |
| 97 | rsgBindProgramVertex(gPV); |
| 98 | rsgBindProgramRaster(gPR); |
| 99 | rsgBindProgramStore(gPS); |
| 100 | rsgDrawMesh(arcMesh, 0, 0, arcIdx); |
| 101 | rsgDrawMesh(partMesh); |
| 102 | return 1; |
| 103 | } |
| 104 | |