Drew DeVault
7 years ago
committed by
GitHub
commit
1956d3cedb
@ -1,22 +0,0 @@
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#ifndef WLR_RENDER_MATRIX_H
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#define WLR_RENDER_MATRIX_H
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#include <stdint.h>
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#include <wlr/types/wlr_box.h>
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void wlr_matrix_identity(float (*output)[16]);
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void wlr_matrix_translate(float (*output)[16], float x, float y, float z);
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void wlr_matrix_scale(float (*output)[16], float x, float y, float z);
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void wlr_matrix_rotate(float (*output)[16], float radians);
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void wlr_matrix_mul(const float (*x)[16], const float (*y)[16], float (*product)[16]);
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enum wl_output_transform;
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void wlr_matrix_transform(float mat[static 16],
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enum wl_output_transform transform);
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void wlr_matrix_texture(float mat[static 16], int32_t width, int32_t height,
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enum wl_output_transform transform);
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void wlr_matrix_project_box(float (*mat)[16], struct wlr_box *box,
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enum wl_output_transform transform, float rotation, float
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(*projection)[16]);
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#endif
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@ -0,0 +1,21 @@
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#ifndef WLR_TYPES_WLR_MATRIX_H
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#define WLR_TYPES_WLR_MATRIX_H
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#include <wayland-server.h>
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#include <wlr/types/wlr_box.h>
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void wlr_matrix_identity(float mat[static 9]);
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void wlr_matrix_translate(float mat[static 9], float x, float y);
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void wlr_matrix_scale(float mat[static 9], float x, float y);
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void wlr_matrix_rotate(float mat[static 9], float rad);
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void wlr_matrix_multiply(float mat[static 9], const float a[static 9],
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const float b[static 9]);
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void wlr_matrix_transform(float mat[static 9],
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enum wl_output_transform transform);
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void wlr_matrix_projection(float mat[static 9], int width, int height,
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enum wl_output_transform transform);
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void wlr_matrix_project_box(float mat[static 9], const struct wlr_box *box,
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enum wl_output_transform transform, float rotation,
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const float projection[static 9]);
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#endif
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@ -1,210 +0,0 @@
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#include <math.h>
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#include <string.h>
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#include <wayland-server-protocol.h>
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#include <wlr/render/matrix.h>
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#include <wlr/types/wlr_box.h>
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#include <wlr/types/wlr_output.h>
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/* Obtains the index for the given row/column */
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static inline int mind(int row, int col) {
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return (row - 1) * 4 + col - 1;
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}
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void wlr_matrix_identity(float (*output)[16]) {
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static const float identity[16] = {
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1.0f, 0.0f, 0.0f, 0.0f,
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0.0f, 1.0f, 0.0f, 0.0f,
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0.0f, 0.0f, 1.0f, 0.0f,
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0.0f, 0.0f, 0.0f, 1.0f
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};
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memcpy(*output, identity, sizeof(identity));
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}
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void wlr_matrix_translate(float (*output)[16], float x, float y, float z) {
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wlr_matrix_identity(output);
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(*output)[mind(1, 4)] = x;
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(*output)[mind(2, 4)] = y;
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(*output)[mind(3, 4)] = z;
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}
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void wlr_matrix_scale(float (*output)[16], float x, float y, float z) {
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wlr_matrix_identity(output);
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(*output)[mind(1, 1)] = x;
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(*output)[mind(2, 2)] = y;
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(*output)[mind(3, 3)] = z;
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}
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void wlr_matrix_rotate(float (*output)[16], float radians) {
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wlr_matrix_identity(output);
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float _cos = cosf(radians);
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float _sin = sinf(radians);
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(*output)[mind(1, 1)] = _cos;
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(*output)[mind(1, 2)] = _sin;
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(*output)[mind(2, 1)] = -_sin;
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(*output)[mind(2, 2)] = _cos;
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}
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void wlr_matrix_mul(const float (*x)[16], const float (*y)[16], float (*product)[16]) {
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float _product[16] = {
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(*x)[mind(1, 1)] * (*y)[mind(1, 1)] + (*x)[mind(1, 2)] * (*y)[mind(2, 1)] +
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(*x)[mind(1, 3)] * (*y)[mind(3, 1)] + (*x)[mind(1, 4)] * (*y)[mind(4, 1)],
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(*x)[mind(1, 1)] * (*y)[mind(1, 2)] + (*x)[mind(1, 2)] * (*y)[mind(2, 2)] +
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(*x)[mind(1, 3)] * (*y)[mind(3, 2)] + (*x)[mind(1, 4)] * (*y)[mind(4, 2)],
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(*x)[mind(1, 1)] * (*y)[mind(1, 3)] + (*x)[mind(1, 2)] * (*y)[mind(2, 3)] +
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(*x)[mind(1, 3)] * (*y)[mind(3, 3)] + (*x)[mind(1, 4)] * (*y)[mind(4, 3)],
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(*x)[mind(1, 1)] * (*y)[mind(1, 4)] + (*x)[mind(1, 2)] * (*y)[mind(2, 4)] +
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(*x)[mind(1, 4)] * (*y)[mind(3, 4)] + (*x)[mind(1, 4)] * (*y)[mind(4, 4)],
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(*x)[mind(2, 1)] * (*y)[mind(1, 1)] + (*x)[mind(2, 2)] * (*y)[mind(2, 1)] +
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(*x)[mind(2, 3)] * (*y)[mind(3, 1)] + (*x)[mind(2, 4)] * (*y)[mind(4, 1)],
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(*x)[mind(2, 1)] * (*y)[mind(1, 2)] + (*x)[mind(2, 2)] * (*y)[mind(2, 2)] +
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(*x)[mind(2, 3)] * (*y)[mind(3, 2)] + (*x)[mind(2, 4)] * (*y)[mind(4, 2)],
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(*x)[mind(2, 1)] * (*y)[mind(1, 3)] + (*x)[mind(2, 2)] * (*y)[mind(2, 3)] +
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(*x)[mind(2, 3)] * (*y)[mind(3, 3)] + (*x)[mind(2, 4)] * (*y)[mind(4, 3)],
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(*x)[mind(2, 1)] * (*y)[mind(1, 4)] + (*x)[mind(2, 2)] * (*y)[mind(2, 4)] +
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(*x)[mind(2, 4)] * (*y)[mind(3, 4)] + (*x)[mind(2, 4)] * (*y)[mind(4, 4)],
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(*x)[mind(3, 1)] * (*y)[mind(1, 1)] + (*x)[mind(3, 2)] * (*y)[mind(2, 1)] +
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(*x)[mind(3, 3)] * (*y)[mind(3, 1)] + (*x)[mind(3, 4)] * (*y)[mind(4, 1)],
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(*x)[mind(3, 1)] * (*y)[mind(1, 2)] + (*x)[mind(3, 2)] * (*y)[mind(2, 2)] +
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(*x)[mind(3, 3)] * (*y)[mind(3, 2)] + (*x)[mind(3, 4)] * (*y)[mind(4, 2)],
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(*x)[mind(3, 1)] * (*y)[mind(1, 3)] + (*x)[mind(3, 2)] * (*y)[mind(2, 3)] +
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(*x)[mind(3, 3)] * (*y)[mind(3, 3)] + (*x)[mind(3, 4)] * (*y)[mind(4, 3)],
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(*x)[mind(3, 1)] * (*y)[mind(1, 4)] + (*x)[mind(3, 2)] * (*y)[mind(2, 4)] +
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(*x)[mind(3, 4)] * (*y)[mind(3, 4)] + (*x)[mind(3, 4)] * (*y)[mind(4, 4)],
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(*x)[mind(4, 1)] * (*y)[mind(1, 1)] + (*x)[mind(4, 2)] * (*y)[mind(2, 1)] +
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(*x)[mind(4, 3)] * (*y)[mind(3, 1)] + (*x)[mind(4, 4)] * (*y)[mind(4, 1)],
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(*x)[mind(4, 1)] * (*y)[mind(1, 2)] + (*x)[mind(4, 2)] * (*y)[mind(2, 2)] +
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(*x)[mind(4, 3)] * (*y)[mind(3, 2)] + (*x)[mind(4, 4)] * (*y)[mind(4, 2)],
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(*x)[mind(4, 1)] * (*y)[mind(1, 3)] + (*x)[mind(4, 2)] * (*y)[mind(2, 3)] +
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(*x)[mind(4, 3)] * (*y)[mind(3, 3)] + (*x)[mind(4, 4)] * (*y)[mind(4, 3)],
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(*x)[mind(4, 1)] * (*y)[mind(1, 4)] + (*x)[mind(4, 2)] * (*y)[mind(2, 4)] +
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(*x)[mind(4, 4)] * (*y)[mind(3, 4)] + (*x)[mind(4, 4)] * (*y)[mind(4, 4)],
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};
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memcpy(*product, _product, sizeof(_product));
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}
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static const float transforms[][4] = {
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[WL_OUTPUT_TRANSFORM_NORMAL] = {
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1.0f, 0.0f,
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0.0f, 1.0f,
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},
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[WL_OUTPUT_TRANSFORM_90] = {
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0.0f, -1.0f,
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1.0f, 0.0f,
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},
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[WL_OUTPUT_TRANSFORM_180] = {
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-1.0f, 0.0f,
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0.0f, -1.0f,
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},
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[WL_OUTPUT_TRANSFORM_270] = {
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0.0f, 1.0f,
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-1.0f, 0.0f,
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},
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[WL_OUTPUT_TRANSFORM_FLIPPED] = {
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-1.0f, 0.0f,
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0.0f, 1.0f,
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},
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[WL_OUTPUT_TRANSFORM_FLIPPED_90] = {
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0.0f, -1.0f,
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-1.0f, 0.0f,
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},
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[WL_OUTPUT_TRANSFORM_FLIPPED_180] = {
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1.0f, 0.0f,
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0.0f, -1.0f,
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},
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[WL_OUTPUT_TRANSFORM_FLIPPED_270] = {
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0.0f, 1.0f,
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1.0f, 0.0f,
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},
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};
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void wlr_matrix_transform(float mat[static 16],
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enum wl_output_transform transform) {
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memset(mat, 0, sizeof(*mat) * 16);
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const float *t = transforms[transform];
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// Rotation + reflection
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mat[0] = t[0];
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mat[1] = t[1];
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mat[4] = t[2];
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mat[5] = t[3];
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// Identity
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mat[10] = 1.0f;
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mat[15] = 1.0f;
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}
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// Equivilent to glOrtho(0, width, 0, height, 1, -1) with the transform applied
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void wlr_matrix_texture(float mat[static 16], int32_t width, int32_t height,
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enum wl_output_transform transform) {
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memset(mat, 0, sizeof(*mat) * 16);
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const float *t = transforms[transform];
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float x = 2.0f / width;
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float y = 2.0f / height;
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// Rotation + reflection
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mat[0] = x * t[0];
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mat[1] = x * t[1];
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mat[4] = y * -t[2];
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mat[5] = y * -t[3];
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// Translation
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mat[3] = -copysign(1.0f, mat[0] + mat[1]);
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mat[7] = -copysign(1.0f, mat[4] + mat[5]);
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// Identity
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mat[10] = 1.0f;
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mat[15] = 1.0f;
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}
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void wlr_matrix_project_box(float (*mat)[16], struct wlr_box *box,
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enum wl_output_transform transform, float rotation,
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float (*projection)[16]) {
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int x = box->x;
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int y = box->y;
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int width = box->width;
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int height = box->height;
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wlr_matrix_translate(mat, x, y, 0);
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if (rotation != 0) {
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float translate_center[16];
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wlr_matrix_translate(&translate_center, width/2, height/2, 0);
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float rotate[16];
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wlr_matrix_rotate(&rotate, rotation);
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float translate_origin[16];
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wlr_matrix_translate(&translate_origin, -width/2, -height/2, 0);
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wlr_matrix_mul(mat, &translate_center, mat);
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wlr_matrix_mul(mat, &rotate, mat);
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wlr_matrix_mul(mat, &translate_origin, mat);
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}
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float scale[16];
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wlr_matrix_scale(&scale, width, height, 1);
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wlr_matrix_mul(mat, &scale, mat);
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if (transform != WL_OUTPUT_TRANSFORM_NORMAL) {
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float surface_translate_center[16];
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wlr_matrix_translate(&surface_translate_center, 0.5, 0.5, 0);
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float surface_transform[16];
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wlr_matrix_transform(surface_transform, transform);
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float surface_translate_origin[16];
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wlr_matrix_translate(&surface_translate_origin, -0.5, -0.5, 0);
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wlr_matrix_mul(mat, &surface_translate_center, mat);
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wlr_matrix_mul(mat, &surface_transform, mat);
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wlr_matrix_mul(mat, &surface_translate_origin, mat);
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}
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wlr_matrix_mul(projection, mat, mat);
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}
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@ -0,0 +1,160 @@
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#include <math.h>
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#include <string.h>
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#include <wayland-server-protocol.h>
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#include <wlr/types/wlr_matrix.h>
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#include <wlr/types/wlr_box.h>
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#include <wlr/types/wlr_output.h>
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void wlr_matrix_identity(float mat[static 9]) {
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static const float identity[9] = {
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1.0f, 0.0f, 0.0f,
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0.0f, 1.0f, 0.0f,
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0.0f, 0.0f, 1.0f,
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};
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memcpy(mat, identity, sizeof(identity));
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}
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void wlr_matrix_multiply(float mat[static 9], const float a[static 9],
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const float b[static 9]) {
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float product[9];
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product[0] = a[0]*b[0] + a[1]*b[3] + a[2]*b[6];
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product[1] = a[0]*b[1] + a[1]*b[4] + a[2]*b[7];
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product[2] = a[0]*b[2] + a[1]*b[5] + a[2]*b[8];
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product[3] = a[3]*b[0] + a[4]*b[3] + a[5]*b[6];
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product[4] = a[3]*b[1] + a[4]*b[4] + a[5]*b[7];
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product[5] = a[3]*b[2] + a[4]*b[5] + a[5]*b[8];
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product[6] = a[6]*b[0] + a[7]*b[3] + a[8]*b[6];
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product[7] = a[6]*b[1] + a[7]*b[4] + a[8]*b[7];
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product[8] = a[6]*b[2] + a[7]*b[5] + a[8]*b[8];
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memcpy(mat, product, sizeof(product));
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}
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void wlr_matrix_translate(float mat[static 9], float x, float y) {
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float translate[9] = {
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1.0f, 0.0f, x,
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0.0f, 1.0f, y,
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0.0f, 0.0f, 1.0f,
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};
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wlr_matrix_multiply(mat, mat, translate);
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}
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void wlr_matrix_scale(float mat[static 9], float x, float y) {
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float scale[9] = {
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x, 0.0f, 0.0f,
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0.0f, y, 0.0f,
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0.0f, 0.0f, 1.0f,
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};
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wlr_matrix_multiply(mat, mat, scale);
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}
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void wlr_matrix_rotate(float mat[static 9], float rad) {
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float rotate[9] = {
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cos(rad), -sin(rad), 0.0f,
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sin(rad), cos(rad), 0.0f,
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0.0f, 0.0f, 1.0f,
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};
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wlr_matrix_multiply(mat, mat, rotate);
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}
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static const float transforms[][9] = {
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[WL_OUTPUT_TRANSFORM_NORMAL] = {
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1.0f, 0.0f, 0.0f,
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0.0f, 1.0f, 0.0f,
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0.0f, 0.0f, 1.0f,
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},
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[WL_OUTPUT_TRANSFORM_90] = {
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0.0f, -1.0f, 0.0f,
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1.0f, 0.0f, 0.0f,
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0.0f, 0.0f, 1.0f,
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},
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[WL_OUTPUT_TRANSFORM_180] = {
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-1.0f, 0.0f, 0.0f,
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0.0f, -1.0f, 0.0f,
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0.0f, 0.0f, 1.0f,
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},
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[WL_OUTPUT_TRANSFORM_270] = {
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0.0f, 1.0f, 0.0f,
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-1.0f, 0.0f, 0.0f,
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0.0f, 0.0f, 1.0f,
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},
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[WL_OUTPUT_TRANSFORM_FLIPPED] = {
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-1.0f, 0.0f, 0.0f,
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0.0f, 1.0f, 0.0f,
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0.0f, 0.0f, 1.0f,
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},
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[WL_OUTPUT_TRANSFORM_FLIPPED_90] = {
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0.0f, -1.0f, 0.0f,
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-1.0f, 0.0f, 0.0f,
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0.0f, 0.0f, 1.0f,
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},
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[WL_OUTPUT_TRANSFORM_FLIPPED_180] = {
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1.0f, 0.0f, 0.0f,
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0.0f, -1.0f, 0.0f,
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0.0f, 0.0f, 1.0f,
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},
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[WL_OUTPUT_TRANSFORM_FLIPPED_270] = {
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0.0f, 1.0f, 0.0f,
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1.0f, 0.0f, 0.0f,
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0.0f, 0.0f, 1.0f,
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},
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};
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void wlr_matrix_transform(float mat[static 9],
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enum wl_output_transform transform) {
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wlr_matrix_multiply(mat, mat, transforms[transform]);
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}
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// Equivilent to glOrtho(0, width, 0, height, 1, -1) with the transform applied
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void wlr_matrix_projection(float mat[static 9], int width, int height,
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enum wl_output_transform transform) {
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memset(mat, 0, sizeof(*mat) * 9);
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const float *t = transforms[transform];
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float x = 2.0f / width;
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float y = 2.0f / height;
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// Rotation + reflection
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mat[0] = x * t[0];
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mat[1] = x * t[1];
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mat[3] = y * -t[3];
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mat[4] = y * -t[4];
|
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|
||||
// Translation
|
||||
mat[2] = -copysign(1.0f, mat[0] + mat[1]);
|
||||
mat[5] = -copysign(1.0f, mat[3] + mat[4]);
|
||||
|
||||
// Identity
|
||||
mat[8] = 1.0f;
|
||||
}
|
||||
|
||||
void wlr_matrix_project_box(float mat[static 9], const struct wlr_box *box,
|
||||
enum wl_output_transform transform, float rotation,
|
||||
const float projection[static 9]) {
|
||||
int x = box->x;
|
||||
int y = box->y;
|
||||
int width = box->width;
|
||||
int height = box->height;
|
||||
|
||||
wlr_matrix_identity(mat);
|
||||
wlr_matrix_translate(mat, x, y);
|
||||
|
||||
if (rotation != 0) {
|
||||
wlr_matrix_translate(mat, width/2, height/2);
|
||||
wlr_matrix_rotate(mat, rotation);
|
||||
wlr_matrix_translate(mat, -width/2, -height/2);
|
||||
}
|
||||
|
||||
wlr_matrix_scale(mat, width, height);
|
||||
|
||||
if (transform != WL_OUTPUT_TRANSFORM_NORMAL) {
|
||||
wlr_matrix_translate(mat, 0.5, 0.5);
|
||||
wlr_matrix_transform(mat, transform);
|
||||
wlr_matrix_translate(mat, -0.5, -0.5);
|
||||
}
|
||||
|
||||
wlr_matrix_multiply(mat, projection, mat);
|
||||
}
|
||||
Loading…
Reference in new issue