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matrix: move to types/
This commit is contained in:
emersion
parent
85da9df807
commit
b6a3f240c7
17 changed files with 18 additions and 18 deletions
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@ -6,10 +6,12 @@ lib_wlr_types = static_library(
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'wlr_cursor.c',
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'wlr_data_device.c',
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'wlr_gamma_control.c',
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'wlr_idle_inhibit_v1.c',
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'wlr_idle.c',
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'wlr_input_device.c',
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'wlr_keyboard.c',
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'wlr_list.c',
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'wlr_matrix.c',
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'wlr_output_damage.c',
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'wlr_output_layout.c',
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'wlr_output.c',
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@ -27,7 +29,6 @@ lib_wlr_types = static_library(
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'wlr_xcursor_manager.c',
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'wlr_xdg_shell_v6.c',
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'wlr_xdg_shell.c',
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'wlr_idle_inhibit_v1.c',
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),
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include_directories: wlr_inc,
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dependencies: [pixman, xkbcommon, wayland_server, wlr_protos],
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210
types/wlr_matrix.c
Normal file
210
types/wlr_matrix.c
Normal file
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@ -0,0 +1,210 @@
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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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/* 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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@ -7,7 +7,7 @@
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#include <wayland-server.h>
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#include <wlr/interfaces/wlr_output.h>
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#include <wlr/render.h>
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#include <wlr/render/matrix.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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#include <wlr/types/wlr_surface.h>
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@ -3,7 +3,7 @@
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#include <wayland-server.h>
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#include <wlr/render/egl.h>
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#include <wlr/render/interface.h>
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#include <wlr/render/matrix.h>
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#include <wlr/types/wlr_matrix.h>
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#include <wlr/types/wlr_region.h>
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#include <wlr/types/wlr_surface.h>
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#include <wlr/util/log.h>
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