diff options
Diffstat (limited to 'examples/demo_utils.h')
| -rw-r--r-- | examples/demo_utils.h | 102 |
1 files changed, 51 insertions, 51 deletions
diff --git a/examples/demo_utils.h b/examples/demo_utils.h index 9057a32..e76d304 100644 --- a/examples/demo_utils.h +++ b/examples/demo_utils.h @@ -25,7 +25,7 @@ #include <string.h> typedef struct { - double lastReportTime; + double lastReportTime; } PuglFpsPrinter; typedef float vec4[4]; @@ -34,32 +34,32 @@ typedef vec4 mat4[4]; static inline void mat4Identity(mat4 m) { - for (int c = 0; c < 4; ++c) { - for (int r = 0; r < 4; ++r) { - m[c][r] = c == r ? 1.0f : 0.0f; - } - } + for (int c = 0; c < 4; ++c) { + for (int r = 0; r < 4; ++r) { + m[c][r] = c == r ? 1.0f : 0.0f; + } + } } static inline void mat4Translate(mat4 m, const float x, const float y, const float z) { - m[3][0] = x; - m[3][1] = y; - m[3][2] = z; + m[3][0] = x; + m[3][1] = y; + m[3][2] = z; } static inline void mat4Mul(mat4 m, mat4 a, mat4 b) { - for (int c = 0; c < 4; ++c) { - for (int r = 0; r < 4; ++r) { - m[c][r] = 0.0f; - for (int k = 0; k < 4; ++k) { - m[c][r] += a[k][r] * b[c][k]; - } - } - } + for (int c = 0; c < 4; ++c) { + for (int r = 0; r < 4; ++r) { + m[c][r] = 0.0f; + for (int k = 0; k < 4; ++k) { + m[c][r] += a[k][r] * b[c][k]; + } + } + } } static inline void @@ -71,37 +71,37 @@ mat4Ortho(mat4 m, const float n, const float f) { - m[0][0] = 2.0f / (r - l); - m[0][1] = m[0][2] = m[0][3] = 0.0f; + m[0][0] = 2.0f / (r - l); + m[0][1] = m[0][2] = m[0][3] = 0.0f; - m[1][1] = 2.0f / (t - b); - m[1][0] = m[1][2] = m[1][3] = 0.0f; + m[1][1] = 2.0f / (t - b); + m[1][0] = m[1][2] = m[1][3] = 0.0f; - m[2][2] = -2.0f / (f - n); - m[2][0] = m[2][1] = m[2][3] = 0.0f; + m[2][2] = -2.0f / (f - n); + m[2][0] = m[2][1] = m[2][3] = 0.0f; - m[3][0] = -(r + l) / (r - l); - m[3][1] = -(t + b) / (t - b); - m[3][2] = -(f + n) / (f - n); - m[3][3] = 1.0f; + m[3][0] = -(r + l) / (r - l); + m[3][1] = -(t + b) / (t - b); + m[3][2] = -(f + n) / (f - n); + m[3][3] = 1.0f; } /// Calculate a projection matrix for a given perspective static inline void perspective(float* m, float fov, float aspect, float zNear, float zFar) { - const float h = tanf(fov); - const float w = h / aspect; - const float depth = zNear - zFar; - const float q = (zFar + zNear) / depth; - const float qn = 2 * zFar * zNear / depth; - - // clang-format off - m[0] = w; m[1] = 0; m[2] = 0; m[3] = 0; - m[4] = 0; m[5] = h; m[6] = 0; m[7] = 0; - m[8] = 0; m[9] = 0; m[10] = q; m[11] = -1; - m[12] = 0; m[13] = 0; m[14] = qn; m[15] = 0; - // clang-format on + const float h = tanf(fov); + const float w = h / aspect; + const float depth = zNear - zFar; + const float q = (zFar + zNear) / depth; + const float qn = 2 * zFar * zNear / depth; + + // clang-format off + m[0] = w; m[1] = 0; m[2] = 0; m[3] = 0; + m[4] = 0; m[5] = h; m[6] = 0; m[7] = 0; + m[8] = 0; m[9] = 0; m[10] = q; m[11] = -1; + m[12] = 0; m[13] = 0; m[14] = qn; m[15] = 0; + // clang-format on } static inline void @@ -109,18 +109,18 @@ puglPrintFps(const PuglWorld* world, PuglFpsPrinter* printer, unsigned* const framesDrawn) { - const double thisTime = puglGetTime(world); - if (thisTime > printer->lastReportTime + 5) { - const double fps = *framesDrawn / (thisTime - printer->lastReportTime); - fprintf(stderr, - "FPS: %.2f (%u frames in %.0f seconds)\n", - fps, - *framesDrawn, - thisTime - printer->lastReportTime); - - printer->lastReportTime = thisTime; - *framesDrawn = 0; - } + const double thisTime = puglGetTime(world); + if (thisTime > printer->lastReportTime + 5) { + const double fps = *framesDrawn / (thisTime - printer->lastReportTime); + fprintf(stderr, + "FPS: %.2f (%u frames in %.0f seconds)\n", + fps, + *framesDrawn, + thisTime - printer->lastReportTime); + + printer->lastReportTime = thisTime; + *framesDrawn = 0; + } } #endif // EXAMPLES_DEMO_UTILS_H |