From 824a95ad19062e867178593f0937d14049422989 Mon Sep 17 00:00:00 2001 From: emersion Date: Thu, 15 Mar 2018 15:33:58 +0100 Subject: [PATCH] matrix: use 2D matrices --- backend/drm/drm.c | 4 +- backend/drm/renderer.c | 20 +-- examples/output-layout.c | 6 +- examples/rotation.c | 4 +- examples/tablet.c | 2 +- examples/touch.c | 4 +- include/backend/drm/drm.h | 2 +- include/wlr/render.h | 20 +-- include/wlr/render/interface.h | 12 +- include/wlr/types/wlr_matrix.h | 24 ++-- include/wlr/types/wlr_output.h | 2 +- include/wlr/types/wlr_surface.h | 10 +- render/gles2/renderer.c | 24 ++-- render/gles2/shaders.c | 67 +++++----- render/gles2/texture.c | 13 +- render/wlr_renderer.c | 10 +- render/wlr_texture.c | 2 +- rootston/output.c | 6 +- types/wlr_matrix.c | 227 +++++++++++++------------------- types/wlr_output.c | 8 +- types/wlr_surface.c | 16 +-- 21 files changed, 214 insertions(+), 269 deletions(-) diff --git a/backend/drm/drm.c b/backend/drm/drm.c index 1e78d301..e956f280 100644 --- a/backend/drm/drm.c +++ b/backend/drm/drm.c @@ -647,9 +647,9 @@ static bool wlr_drm_connector_set_cursor(struct wlr_output *output, glClearColor(0.0, 0.0, 0.0, 0.0); glClear(GL_COLOR_BUFFER_BIT); - float matrix[16]; + float matrix[9]; wlr_texture_get_matrix(plane->wlr_tex, matrix, plane->matrix, 0, 0); - wlr_render_with_matrix(plane->surf.renderer->wlr_rend, plane->wlr_tex, + wlr_render_texture_with_matrix(plane->surf.renderer->wlr_rend, plane->wlr_tex, matrix, 1.0f); glFinish(); diff --git a/backend/drm/renderer.c b/backend/drm/renderer.c index ab56e6c2..f700dd59 100644 --- a/backend/drm/renderer.c +++ b/backend/drm/renderer.c @@ -1,3 +1,4 @@ +#include #include #include #include @@ -226,20 +227,21 @@ struct gbm_bo *wlr_drm_surface_mgpu_copy(struct wlr_drm_surface *dest, wlr_drm_surface_make_current(dest, NULL); struct wlr_texture *tex = get_tex_for_bo(dest->renderer, src); + assert(tex); - static const float matrix[16] = { + static const float color[] = {0.0, 0.0, 0.0, 1.0}; + + static const float mat[9] = { [0] = 2.0f, - [3] = -1.0f, - [5] = 2.0f, - [7] = -1.0f, - [10] = 1.0f, - [15] = 1.0f, + [2] = -1.0f, + [4] = 2.0f, + [5] = -1.0f, + [8] = 1.0f, }; glViewport(0, 0, dest->width, dest->height); - glClearColor(0.0, 0.0, 0.0, 1.0); - glClear(GL_COLOR_BUFFER_BIT); - wlr_render_with_matrix(dest->renderer->wlr_rend, tex, matrix, 1.0f); + wlr_renderer_clear(dest->renderer->wlr_rend, color); + wlr_render_texture_with_matrix(dest->renderer->wlr_rend, tex, mat, 1.0f); return wlr_drm_surface_swap_buffers(dest, NULL); } diff --git a/examples/output-layout.c b/examples/output-layout.c index f4df73a0..9c914137 100644 --- a/examples/output-layout.c +++ b/examples/output-layout.c @@ -111,7 +111,7 @@ static void handle_output_frame(struct output_state *output, .width = 128, .height = 128, }; if (wlr_output_layout_intersects(sample->layout, output->output, &box)) { - float matrix[16]; + float matrix[9]; // transform global coordinates to local coordinates double local_x = sample->x_offs; @@ -121,8 +121,8 @@ static void handle_output_frame(struct output_state *output, wlr_texture_get_matrix(sample->cat_texture, matrix, wlr_output->transform_matrix, local_x, local_y); - wlr_render_with_matrix(sample->renderer, - sample->cat_texture, matrix, 1.0f); + wlr_render_texture_with_matrix(sample->renderer, sample->cat_texture, + matrix, 1.0f); } wlr_renderer_end(sample->renderer); diff --git a/examples/rotation.c b/examples/rotation.c index 0b0c6adf..4431f60a 100644 --- a/examples/rotation.c +++ b/examples/rotation.c @@ -46,12 +46,12 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts wlr_renderer_begin(sample->renderer, wlr_output); wlr_renderer_clear(sample->renderer, (float[]){0.25f, 0.25f, 0.25f, 1}); - float matrix[16]; + float matrix[9]; for (int y = -128 + (int)odata->y_offs; y < height; y += 128) { for (int x = -128 + (int)odata->x_offs; x < width; x += 128) { wlr_texture_get_matrix(sample->cat_texture, matrix, wlr_output->transform_matrix, x, y); - wlr_render_with_matrix(sample->renderer, + wlr_render_texture_with_matrix(sample->renderer, sample->cat_texture, matrix, 1.0f); } } diff --git a/examples/tablet.c b/examples/tablet.c index 82f86553..521447b9 100644 --- a/examples/tablet.c +++ b/examples/tablet.c @@ -49,7 +49,7 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts wlr_renderer_begin(sample->renderer, wlr_output); wlr_renderer_clear(sample->renderer, (float[]){0.25f, 0.25f, 0.25f, 1}); - float matrix[16]; + float matrix[9]; float distance = 0.8f * (1 - sample->distance); float tool_color[4] = { distance, distance, distance, 1 }; for (size_t i = 0; sample->button && i < 4; ++i) { diff --git a/examples/touch.c b/examples/touch.c index 6f4821ad..47bbebc2 100644 --- a/examples/touch.c +++ b/examples/touch.c @@ -45,14 +45,14 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts wlr_renderer_begin(sample->renderer, wlr_output); wlr_renderer_clear(sample->renderer, (float[]){0.25f, 0.25f, 0.25f, 1}); - float matrix[16]; + float matrix[9]; struct touch_point *p; wl_list_for_each(p, &sample->touch_points, link) { wlr_texture_get_matrix(sample->cat_texture, matrix, wlr_output->transform_matrix, (int)(p->x * width) - sample->cat_texture->width / 2, (int)(p->y * height) - sample->cat_texture->height / 2); - wlr_render_with_matrix(sample->renderer, sample->cat_texture, + wlr_render_texture_with_matrix(sample->renderer, sample->cat_texture, matrix, 1.0f); } diff --git a/include/backend/drm/drm.h b/include/backend/drm/drm.h index ee3fd38e..26189340 100644 --- a/include/backend/drm/drm.h +++ b/include/backend/drm/drm.h @@ -26,7 +26,7 @@ struct wlr_drm_plane { struct wlr_drm_surface mgpu_surf; // Only used by cursor - float matrix[16]; + float matrix[9]; struct wlr_texture *wlr_tex; struct gbm_bo *cursor_bo; bool cursor_enabled; diff --git a/include/wlr/render.h b/include/wlr/render.h index 50c2dd13..d1498b07 100644 --- a/include/wlr/render.h +++ b/include/wlr/render.h @@ -30,26 +30,26 @@ struct wlr_texture *wlr_render_texture_create(struct wlr_renderer *r); * * struct wlr_renderer *renderer; * struct wlr_texture *texture; - * float projection[16]; - * float matrix[16]; - * wlr_texture_get_matrix(texture, &matrix, &projection, 123, 321); - * wlr_render_with_matrix(renderer, texture, &matrix, 0.5f); + * float projection[9]; + * float matrix[9]; + * wlr_texture_get_matrix(texture, matrix, projection, 123, 321); + * wlr_render_texture_with_matrix(renderer, texture, matrix, 0.5f); * * This will render the texture at <123, 321> with an alpha channel of 0.5. */ -bool wlr_render_with_matrix(struct wlr_renderer *r, - struct wlr_texture *texture, const float matrix[static 16], float alpha); +bool wlr_render_texture_with_matrix(struct wlr_renderer *r, + struct wlr_texture *texture, const float matrix[static 9], float alpha); /** * Renders a solid quad in the specified color. */ void wlr_render_colored_quad(struct wlr_renderer *r, - const float color[static 4], const float matrix[static 16]); + const float color[static 4], const float matrix[static 9]); /** * Renders a solid ellipse in the specified color. */ void wlr_render_colored_ellipse(struct wlr_renderer *r, - const float color[static 4], const float matrix[static 16]); + const float color[static 4], const float matrix[static 9]); /** * Returns a list of pixel formats supported by this renderer. */ @@ -139,8 +139,8 @@ bool wlr_texture_update_shm(struct wlr_texture *surf, uint32_t format, * width) and [0, height], and the x and y coordinates provided are used as * such. */ -void wlr_texture_get_matrix(struct wlr_texture *texture, float mat[static 16], - const float projection[static 16], int x, int y); +void wlr_texture_get_matrix(struct wlr_texture *texture, float mat[static 9], + const float projection[static 9], int x, int y); /** * Destroys this wlr_texture. */ diff --git a/include/wlr/render/interface.h b/include/wlr/render/interface.h index 4d81bdf9..03b8309f 100644 --- a/include/wlr/render/interface.h +++ b/include/wlr/render/interface.h @@ -21,13 +21,13 @@ struct wlr_renderer_impl { void (*clear)(struct wlr_renderer *renderer, const float color[static 4]); void (*scissor)(struct wlr_renderer *renderer, struct wlr_box *box); struct wlr_texture *(*texture_create)(struct wlr_renderer *renderer); - bool (*render_with_matrix)(struct wlr_renderer *renderer, - struct wlr_texture *texture, const float matrix[static 16], + bool (*render_texture_with_matrix)(struct wlr_renderer *renderer, + struct wlr_texture *texture, const float matrix[static 9], float alpha); void (*render_quad)(struct wlr_renderer *renderer, - const float color[static 4], const float matrix[static 16]); + const float color[static 4], const float matrix[static 9]); void (*render_ellipse)(struct wlr_renderer *renderer, - const float color[static 4], const float matrix[static 16]); + const float color[static 4], const float matrix[static 9]); const enum wl_shm_format *(*formats)( struct wlr_renderer *renderer, size_t *len); bool (*buffer_is_drm)(struct wlr_renderer *renderer, @@ -59,8 +59,8 @@ struct wlr_texture_impl { struct wl_resource *drm_buf); bool (*upload_eglimage)(struct wlr_texture *texture, EGLImageKHR image, uint32_t width, uint32_t height); - void (*get_matrix)(struct wlr_texture *state, float mat[static 16], - const float projection[static 16], int x, int y); + void (*get_matrix)(struct wlr_texture *state, float mat[static 9], + const float projection[static 9], int x, int y); void (*get_buffer_size)(struct wlr_texture *texture, struct wl_resource *resource, int *width, int *height); void (*bind)(struct wlr_texture *texture); diff --git a/include/wlr/types/wlr_matrix.h b/include/wlr/types/wlr_matrix.h index cf5ad20d..5255980a 100644 --- a/include/wlr/types/wlr_matrix.h +++ b/include/wlr/types/wlr_matrix.h @@ -2,22 +2,22 @@ #define WLR_TYPES_WLR_MATRIX_H #include +#include #include -void wlr_matrix_identity(float mat[static 16]); -void wlr_matrix_translate(float mat[static 16], float x, float y, float z); -void wlr_matrix_scale(float mat[static 16], float x, float y, float z); -void wlr_matrix_rotate(float mat[static 16], float radians); -void wlr_matrix_mul(float mat[static 16], const float x[static 16], - const float y[static 16]); - -enum wl_output_transform; -void wlr_matrix_transform(float mat[static 16], +void wlr_matrix_identity(float mat[static 9]); +void wlr_matrix_translate(float mat[static 9], float x, float y); +void wlr_matrix_scale(float mat[static 9], float x, float y); +void wlr_matrix_rotate(float mat[static 9], float rad); +void wlr_matrix_multiply(float mat[static 9], const float a[static 9], + const float b[static 9]); +void wlr_matrix_transform(float mat[static 9], enum wl_output_transform transform); -void wlr_matrix_texture(float mat[static 16], int32_t width, int32_t height, + +void wlr_matrix_texture(float mat[static 9], int32_t width, int32_t height, enum wl_output_transform transform); -void wlr_matrix_project_box(float mat[static 16], const struct wlr_box *box, +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 16]); + const float projection[static 9]); #endif diff --git a/include/wlr/types/wlr_output.h b/include/wlr/types/wlr_output.h index a8138a80..b838a737 100644 --- a/include/wlr/types/wlr_output.h +++ b/include/wlr/types/wlr_output.h @@ -76,7 +76,7 @@ struct wlr_output { // damage for cursors and fullscreen surface, in output-local coordinates pixman_region32_t damage; bool frame_pending; - float transform_matrix[16]; + float transform_matrix[9]; struct { struct wl_signal frame; diff --git a/include/wlr/types/wlr_surface.h b/include/wlr/types/wlr_surface.h index 1d4c1f01..2bfd1bc9 100644 --- a/include/wlr/types/wlr_surface.h +++ b/include/wlr/types/wlr_surface.h @@ -70,8 +70,8 @@ struct wlr_surface { struct wlr_surface_state *current, *pending; const char *role; // the lifetime-bound role or null - float buffer_to_surface_matrix[16]; - float surface_to_buffer_matrix[16]; + float buffer_to_surface_matrix[9]; + float surface_to_buffer_matrix[9]; struct { struct wl_signal commit; @@ -109,9 +109,9 @@ struct wlr_surface *wlr_surface_create(struct wl_resource *res, * from 0 to 1 in both dimensions. */ void wlr_surface_get_matrix(struct wlr_surface *surface, - float mat[static 16], - const float projection[static 16], - const float transform[static 16]); + float mat[static 9], + const float projection[static 9], + const float transform[static 9]); /** diff --git a/render/gles2/renderer.c b/render/gles2/renderer.c index 9134a2fd..e0a98d29 100644 --- a/render/gles2/renderer.c +++ b/render/gles2/renderer.c @@ -85,11 +85,13 @@ static void init_default_shaders() { if (!compile_program(quad_vertex_src, quad_fragment_src, &shaders.quad)) { goto error; } - if (!compile_program(quad_vertex_src, ellipse_fragment_src, &shaders.ellipse)) { + if (!compile_program(quad_vertex_src, ellipse_fragment_src, + &shaders.ellipse)) { goto error; } if (glEGLImageTargetTexture2DOES) { - if (!compile_program(quad_vertex_src, fragment_src_external, &shaders.external)) { + if (!compile_program(quad_vertex_src, fragment_src_external, + &shaders.external)) { goto error; } } @@ -170,16 +172,16 @@ static void draw_quad() { GL_CALL(glDisableVertexAttribArray(1)); } -static bool wlr_gles2_render_texture(struct wlr_renderer *wlr_renderer, - struct wlr_texture *texture, const float matrix[static 16], - float alpha) { +static bool wlr_gles2_render_texture_with_matrix( + struct wlr_renderer *wlr_renderer, struct wlr_texture *texture, + const float matrix[static 9], float alpha) { if (!texture || !texture->valid) { wlr_log(L_ERROR, "attempt to render invalid texture"); return false; } wlr_texture_bind(texture); - GL_CALL(glUniformMatrix4fv(0, 1, GL_FALSE, matrix)); + GL_CALL(glUniformMatrix3fv(0, 1, GL_FALSE, matrix)); GL_CALL(glUniform1f(2, alpha)); draw_quad(); return true; @@ -187,17 +189,17 @@ static bool wlr_gles2_render_texture(struct wlr_renderer *wlr_renderer, static void wlr_gles2_render_quad(struct wlr_renderer *wlr_renderer, - const float color[static 4], const float matrix[static 16]) { + const float color[static 4], const float matrix[static 9]) { GL_CALL(glUseProgram(shaders.quad)); - GL_CALL(glUniformMatrix4fv(0, 1, GL_FALSE, matrix)); + GL_CALL(glUniformMatrix3fv(0, 1, GL_FALSE, matrix)); GL_CALL(glUniform4f(1, color[0], color[1], color[2], color[3])); draw_quad(); } static void wlr_gles2_render_ellipse(struct wlr_renderer *wlr_renderer, - const float color[static 4], const float matrix[static 16]) { + const float color[static 4], const float matrix[static 9]) { GL_CALL(glUseProgram(shaders.ellipse)); - GL_CALL(glUniformMatrix4fv(0, 1, GL_TRUE, matrix)); + GL_CALL(glUniformMatrix3fv(0, 1, GL_TRUE, matrix)); GL_CALL(glUniform4f(1, color[0], color[1], color[2], color[3])); draw_quad(); } @@ -258,7 +260,7 @@ static struct wlr_renderer_impl wlr_renderer_impl = { .clear = wlr_gles2_clear, .scissor = wlr_gles2_scissor, .texture_create = wlr_gles2_texture_create, - .render_with_matrix = wlr_gles2_render_texture, + .render_texture_with_matrix = wlr_gles2_render_texture_with_matrix, .render_quad = wlr_gles2_render_quad, .render_ellipse = wlr_gles2_render_ellipse, .formats = wlr_gles2_formats, diff --git a/render/gles2/shaders.c b/render/gles2/shaders.c index 46a10248..9d3a67c2 100644 --- a/render/gles2/shaders.c +++ b/render/gles2/shaders.c @@ -3,29 +3,29 @@ // Colored quads const GLchar quad_vertex_src[] = -"uniform mat4 proj;" +"uniform mat3 proj;" "uniform vec4 color;" "attribute vec2 pos;" "attribute vec2 texcoord;" "varying vec4 v_color;" "varying vec2 v_texcoord;" -"mat4 transpose(in mat4 inMatrix) {" -" vec4 i0 = inMatrix[0];" -" vec4 i1 = inMatrix[1];" -" vec4 i2 = inMatrix[2];" -" vec4 i3 = inMatrix[3];" -" mat4 outMatrix = mat4(" -" vec4(i0.x, i1.x, i2.x, i3.x)," -" vec4(i0.y, i1.y, i2.y, i3.y)," -" vec4(i0.z, i1.z, i2.z, i3.z)," -" vec4(i0.w, i1.w, i2.w, i3.w)" -" );" -" return outMatrix;" +"" +"mat3 transpose(in mat3 inMatrix) {" +" vec3 i0 = inMatrix[0];" +" vec3 i1 = inMatrix[1];" +" vec3 i2 = inMatrix[2];" +" mat3 outMatrix = mat3(" +" vec3(i0.x, i1.x, i2.x)," +" vec3(i0.y, i1.y, i2.y)," +" vec3(i0.z, i1.z, i2.z)" +" );" +" return outMatrix;" "}" +"" "void main() {" -" gl_Position = transpose(proj) * vec4(pos, 0.0, 1.0);" -" v_color = color;" -" v_texcoord = texcoord;" +" gl_Position = vec4(transpose(proj) * vec3(pos, 1.0), 1.0);" +" v_color = color;" +" v_texcoord = texcoord;" "}"; const GLchar quad_fragment_src[] = @@ -49,26 +49,25 @@ const GLchar ellipse_fragment_src[] = // Textured quads const GLchar vertex_src[] = -"uniform mat4 proj;" +"uniform mat3 proj;" "attribute vec2 pos;" "attribute vec2 texcoord;" "varying vec2 v_texcoord;" -"mat4 transpose(in mat4 inMatrix) {" -" vec4 i0 = inMatrix[0];" -" vec4 i1 = inMatrix[1];" -" vec4 i2 = inMatrix[2];" -" vec4 i3 = inMatrix[3];" -" mat4 outMatrix = mat4(" -" vec4(i0.x, i1.x, i2.x, i3.x)," -" vec4(i0.y, i1.y, i2.y, i3.y)," -" vec4(i0.z, i1.z, i2.z, i3.z)," -" vec4(i0.w, i1.w, i2.w, i3.w)" -" );" "" -" return outMatrix;" +"mat3 transpose(in mat3 inMatrix) {" +" vec3 i0 = inMatrix[0];" +" vec3 i1 = inMatrix[1];" +" vec3 i2 = inMatrix[2];" +" mat3 outMatrix = mat3(" +" vec3(i0.x, i1.x, i2.x)," +" vec3(i0.y, i1.y, i2.y)," +" vec3(i0.z, i1.z, i2.z)" +" );" +" return outMatrix;" "}" +"" "void main() {" -" gl_Position = transpose(proj) * vec4(pos, 0.0, 1.0);" +" gl_Position = vec4(transpose(proj) * vec3(pos, 1.0), 1.0);" " v_texcoord = texcoord;" "}"; @@ -87,8 +86,8 @@ const GLchar fragment_src_rgbx[] = "uniform sampler2D tex;" "uniform float alpha;" "void main() {" -" gl_FragColor.rgb = alpha * texture2D(tex, v_texcoord).rgb;" -" gl_FragColor.a = alpha;" +" gl_FragColor.rgb = alpha * texture2D(tex, v_texcoord).rgb;" +" gl_FragColor.a = alpha;" "}"; const GLchar fragment_src_external[] = @@ -97,6 +96,6 @@ const GLchar fragment_src_external[] = "varying vec2 v_texcoord;" "uniform samplerExternalOES texture0;" "void main() {" -" vec4 col = texture2D(texture0, v_texcoord);" -" gl_FragColor = vec4(col.rgb, col.a);" +" vec4 col = texture2D(texture0, v_texcoord);" +" gl_FragColor = vec4(col.rgb, col.a);" "}"; diff --git a/render/gles2/texture.c b/render/gles2/texture.c index 0dfebc48..9ee2a3e3 100644 --- a/render/gles2/texture.c +++ b/render/gles2/texture.c @@ -227,16 +227,13 @@ static bool gles2_texture_upload_eglimage(struct wlr_texture *wlr_tex, } static void gles2_texture_get_matrix(struct wlr_texture *_texture, - float mat[static 16], const float projection[static 16], int x, int y) { + float mat[static 9], const float projection[static 9], int x, int y) { struct wlr_gles2_texture *texture = (struct wlr_gles2_texture *)_texture; - float world[16]; wlr_matrix_identity(mat); - wlr_matrix_translate(world, x, y, 0); - wlr_matrix_mul(mat, mat, world); - wlr_matrix_scale(world, - texture->wlr_texture.width, texture->wlr_texture.height, 1); - wlr_matrix_mul(mat, mat, world); - wlr_matrix_mul(mat, projection, mat); + wlr_matrix_translate(mat, x, y); + wlr_matrix_scale(mat, texture->wlr_texture.width, + texture->wlr_texture.height); + wlr_matrix_multiply(mat, projection, mat); } static void gles2_texture_get_buffer_size(struct wlr_texture *texture, struct diff --git a/render/wlr_renderer.c b/render/wlr_renderer.c index 372e4caf..e847fcc2 100644 --- a/render/wlr_renderer.c +++ b/render/wlr_renderer.c @@ -35,19 +35,19 @@ struct wlr_texture *wlr_render_texture_create(struct wlr_renderer *r) { return r->impl->texture_create(r); } -bool wlr_render_with_matrix(struct wlr_renderer *r, - struct wlr_texture *texture, const float matrix[static 16], +bool wlr_render_texture_with_matrix(struct wlr_renderer *r, + struct wlr_texture *texture, const float matrix[static 9], float alpha) { - return r->impl->render_with_matrix(r, texture, matrix, alpha); + return r->impl->render_texture_with_matrix(r, texture, matrix, alpha); } void wlr_render_colored_quad(struct wlr_renderer *r, - const float color[static 4], const float matrix[static 16]) { + const float color[static 4], const float matrix[static 9]) { r->impl->render_quad(r, color, matrix); } void wlr_render_colored_ellipse(struct wlr_renderer *r, - const float color[static 4], const float matrix[static 16]) { + const float color[static 4], const float matrix[static 9]) { r->impl->render_ellipse(r, color, matrix); } diff --git a/render/wlr_texture.c b/render/wlr_texture.c index 0bfac32c..1ec9beb9 100644 --- a/render/wlr_texture.c +++ b/render/wlr_texture.c @@ -54,7 +54,7 @@ bool wlr_texture_upload_eglimage(struct wlr_texture *texture, } void wlr_texture_get_matrix(struct wlr_texture *texture, - float mat[static 16], const float projection[static 16], int x, int y) { + float mat[static 9], const float projection[static 9], int x, int y) { texture->impl->get_matrix(texture, mat, projection, x, y); } diff --git a/rootston/output.c b/rootston/output.c index 47236720..29fb1202 100644 --- a/rootston/output.c +++ b/rootston/output.c @@ -287,7 +287,7 @@ static void render_surface(struct wlr_surface *surface, double lx, double ly, goto damage_finish; } - float matrix[16]; + float matrix[9]; enum wl_output_transform transform = wlr_output_transform_invert(surface->current->transform); wlr_matrix_project_box(matrix, &box, transform, rotation, @@ -297,7 +297,7 @@ static void render_surface(struct wlr_surface *surface, double lx, double ly, pixman_box32_t *rects = pixman_region32_rectangles(&damage, &nrects); for (int i = 0; i < nrects; ++i) { scissor_output(output, &rects[i]); - wlr_render_with_matrix(renderer, surface->texture, matrix, data->alpha); + wlr_render_texture_with_matrix(renderer, surface->texture, matrix, data->alpha); } damage_finish: @@ -353,7 +353,7 @@ static void render_decorations(struct roots_view *view, goto damage_finish; } - float matrix[16]; + float matrix[9]; wlr_matrix_project_box(matrix, &box, WL_OUTPUT_TRANSFORM_NORMAL, view->rotation, output->wlr_output->transform_matrix); float color[] = { 0.2, 0.2, 0.2, view->alpha }; diff --git a/types/wlr_matrix.c b/types/wlr_matrix.c index a6be9908..85a294d9 100644 --- a/types/wlr_matrix.c +++ b/types/wlr_matrix.c @@ -5,143 +5,113 @@ #include #include -/* Obtains the index for the given row/column */ -static inline int mind(int row, int col) { - return (row - 1) * 4 + col - 1; -} - -void wlr_matrix_identity(float mat[static 16]) { - static const float identity[16] = { - 1.0f, 0.0f, 0.0f, 0.0f, - 0.0f, 1.0f, 0.0f, 0.0f, - 0.0f, 0.0f, 1.0f, 0.0f, - 0.0f, 0.0f, 0.0f, 1.0f, +void wlr_matrix_identity(float mat[static 9]) { + static const float identity[9] = { + 1.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 1.0f, }; memcpy(mat, identity, sizeof(identity)); } -void wlr_matrix_translate(float mat[static 16], float x, float y, float z) { - wlr_matrix_identity(mat); - mat[mind(1, 4)] = x; - mat[mind(2, 4)] = y; - mat[mind(3, 4)] = z; +void wlr_matrix_multiply(float mat[static 9], const float a[static 9], + const float b[static 9]) { + float product[9]; + + product[0] = a[0]*b[0] + a[1]*b[3] + a[2]*b[6]; + product[1] = a[0]*b[1] + a[1]*b[4] + a[2]*b[7]; + product[2] = a[0]*b[2] + a[1]*b[5] + a[2]*b[8]; + + product[3] = a[3]*b[0] + a[4]*b[3] + a[5]*b[6]; + product[4] = a[3]*b[1] + a[4]*b[4] + a[5]*b[7]; + product[5] = a[3]*b[2] + a[4]*b[5] + a[5]*b[8]; + + product[6] = a[6]*b[0] + a[7]*b[3] + a[8]*b[6]; + product[7] = a[6]*b[1] + a[7]*b[4] + a[8]*b[7]; + product[8] = a[6]*b[2] + a[7]*b[5] + a[8]*b[8]; + + memcpy(mat, product, sizeof(product)); } -void wlr_matrix_scale(float mat[static 16], float x, float y, float z) { - wlr_matrix_identity(mat); - mat[mind(1, 1)] = x; - mat[mind(2, 2)] = y; - mat[mind(3, 3)] = z; +void wlr_matrix_translate(float mat[static 9], float x, float y) { + float translate[9] = { + 1.0f, 0.0f, x, + 0.0f, 1.0f, y, + 0.0f, 0.0f, 1.0f, + }; + wlr_matrix_multiply(mat, mat, translate); } -void wlr_matrix_rotate(float mat[static 16], float radians) { - wlr_matrix_identity(mat); - float _cos = cosf(radians); - float _sin = sinf(radians); - mat[mind(1, 1)] = _cos; - mat[mind(1, 2)] = _sin; - mat[mind(2, 1)] = -_sin; - mat[mind(2, 2)] = _cos; +void wlr_matrix_scale(float mat[static 9], float x, float y) { + float scale[9] = { + x, 0.0f, 0.0f, + 0.0f, y, 0.0f, + 0.0f, 0.0f, 1.0f, + }; + wlr_matrix_multiply(mat, mat, scale); } -void wlr_matrix_mul(float mat[static 16], const float x[static 16], - const float y[static 16]) { - float product[16] = { - x[mind(1, 1)] * y[mind(1, 1)] + x[mind(1, 2)] * y[mind(2, 1)] + - x[mind(1, 3)] * y[mind(3, 1)] + x[mind(1, 4)] * y[mind(4, 1)], - x[mind(1, 1)] * y[mind(1, 2)] + x[mind(1, 2)] * y[mind(2, 2)] + - x[mind(1, 3)] * y[mind(3, 2)] + x[mind(1, 4)] * y[mind(4, 2)], - x[mind(1, 1)] * y[mind(1, 3)] + x[mind(1, 2)] * y[mind(2, 3)] + - x[mind(1, 3)] * y[mind(3, 3)] + x[mind(1, 4)] * y[mind(4, 3)], - x[mind(1, 1)] * y[mind(1, 4)] + x[mind(1, 2)] * y[mind(2, 4)] + - x[mind(1, 4)] * y[mind(3, 4)] + x[mind(1, 4)] * y[mind(4, 4)], - - x[mind(2, 1)] * y[mind(1, 1)] + x[mind(2, 2)] * y[mind(2, 1)] + - x[mind(2, 3)] * y[mind(3, 1)] + x[mind(2, 4)] * y[mind(4, 1)], - x[mind(2, 1)] * y[mind(1, 2)] + x[mind(2, 2)] * y[mind(2, 2)] + - x[mind(2, 3)] * y[mind(3, 2)] + x[mind(2, 4)] * y[mind(4, 2)], - x[mind(2, 1)] * y[mind(1, 3)] + x[mind(2, 2)] * y[mind(2, 3)] + - x[mind(2, 3)] * y[mind(3, 3)] + x[mind(2, 4)] * y[mind(4, 3)], - x[mind(2, 1)] * y[mind(1, 4)] + x[mind(2, 2)] * y[mind(2, 4)] + - x[mind(2, 4)] * y[mind(3, 4)] + x[mind(2, 4)] * y[mind(4, 4)], - - x[mind(3, 1)] * y[mind(1, 1)] + x[mind(3, 2)] * y[mind(2, 1)] + - x[mind(3, 3)] * y[mind(3, 1)] + x[mind(3, 4)] * y[mind(4, 1)], - x[mind(3, 1)] * y[mind(1, 2)] + x[mind(3, 2)] * y[mind(2, 2)] + - x[mind(3, 3)] * y[mind(3, 2)] + x[mind(3, 4)] * y[mind(4, 2)], - x[mind(3, 1)] * y[mind(1, 3)] + x[mind(3, 2)] * y[mind(2, 3)] + - x[mind(3, 3)] * y[mind(3, 3)] + x[mind(3, 4)] * y[mind(4, 3)], - x[mind(3, 1)] * y[mind(1, 4)] + x[mind(3, 2)] * y[mind(2, 4)] + - x[mind(3, 4)] * y[mind(3, 4)] + x[mind(3, 4)] * y[mind(4, 4)], - - x[mind(4, 1)] * y[mind(1, 1)] + x[mind(4, 2)] * y[mind(2, 1)] + - x[mind(4, 3)] * y[mind(3, 1)] + x[mind(4, 4)] * y[mind(4, 1)], - x[mind(4, 1)] * y[mind(1, 2)] + x[mind(4, 2)] * y[mind(2, 2)] + - x[mind(4, 3)] * y[mind(3, 2)] + x[mind(4, 4)] * y[mind(4, 2)], - x[mind(4, 1)] * y[mind(1, 3)] + x[mind(4, 2)] * y[mind(2, 3)] + - x[mind(4, 3)] * y[mind(3, 3)] + x[mind(4, 4)] * y[mind(4, 3)], - x[mind(4, 1)] * y[mind(1, 4)] + x[mind(4, 2)] * y[mind(2, 4)] + - x[mind(4, 4)] * y[mind(3, 4)] + x[mind(4, 4)] * y[mind(4, 4)], +void wlr_matrix_rotate(float mat[static 9], float rad) { + float rotate[9] = { + cos(rad), -sin(rad), 0.0f, + sin(rad), cos(rad), 0.0f, + 0.0f, 0.0f, 1.0f, }; - memcpy(mat, product, sizeof(product)); + wlr_matrix_multiply(mat, mat, rotate); } -static const float transforms[][4] = { +static const float transforms[][9] = { [WL_OUTPUT_TRANSFORM_NORMAL] = { - 1.0f, 0.0f, - 0.0f, 1.0f, + 1.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 1.0f, }, [WL_OUTPUT_TRANSFORM_90] = { - 0.0f, -1.0f, - 1.0f, 0.0f, + 0.0f, -1.0f, 0.0f, + 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, }, [WL_OUTPUT_TRANSFORM_180] = { - -1.0f, 0.0f, - 0.0f, -1.0f, + -1.0f, 0.0f, 0.0f, + 0.0f, -1.0f, 0.0f, + 0.0f, 0.0f, 1.0f, }, [WL_OUTPUT_TRANSFORM_270] = { - 0.0f, 1.0f, - -1.0f, 0.0f, + 0.0f, 1.0f, 0.0f, + -1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, }, [WL_OUTPUT_TRANSFORM_FLIPPED] = { - -1.0f, 0.0f, - 0.0f, 1.0f, + -1.0f, 0.0f, 0.0f, + 0.0f, 1.0f, 0.0f, + 0.0f, 0.0f, 1.0f, }, [WL_OUTPUT_TRANSFORM_FLIPPED_90] = { - 0.0f, -1.0f, - -1.0f, 0.0f, + 0.0f, -1.0f, 0.0f, + -1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, }, [WL_OUTPUT_TRANSFORM_FLIPPED_180] = { - 1.0f, 0.0f, - 0.0f, -1.0f, + 1.0f, 0.0f, 0.0f, + 0.0f, -1.0f, 0.0f, + 0.0f, 0.0f, 1.0f, }, [WL_OUTPUT_TRANSFORM_FLIPPED_270] = { - 0.0f, 1.0f, - 1.0f, 0.0f, + 0.0f, 1.0f, 0.0f, + 1.0f, 0.0f, 0.0f, + 0.0f, 0.0f, 1.0f, }, }; -void wlr_matrix_transform(float mat[static 16], +void wlr_matrix_transform(float mat[static 9], enum wl_output_transform transform) { - memset(mat, 0, sizeof(*mat) * 16); - - const float *t = transforms[transform]; - - // Rotation + reflection - mat[0] = t[0]; - mat[1] = t[1]; - mat[4] = t[2]; - mat[5] = t[3]; - - // Identity - mat[10] = 1.0f; - mat[15] = 1.0f; + wlr_matrix_multiply(mat, mat, transforms[transform]); } // Equivilent to glOrtho(0, width, 0, height, 1, -1) with the transform applied -void wlr_matrix_texture(float mat[static 16], int32_t width, int32_t height, +void wlr_matrix_texture(float mat[static 9], int32_t width, int32_t height, enum wl_output_transform transform) { - memset(mat, 0, sizeof(*mat) * 16); + memset(mat, 0, sizeof(*mat) * 9); const float *t = transforms[transform]; float x = 2.0f / width; @@ -150,62 +120,41 @@ void wlr_matrix_texture(float mat[static 16], int32_t width, int32_t height, // Rotation + reflection mat[0] = x * t[0]; mat[1] = x * t[1]; - mat[4] = y * -t[2]; - mat[5] = y * -t[3]; + mat[3] = y * -t[3]; + mat[4] = y * -t[4]; // Translation - mat[3] = -copysign(1.0f, mat[0] + mat[1]); - mat[7] = -copysign(1.0f, mat[4] + mat[5]); + mat[2] = -copysign(1.0f, mat[0] + mat[1]); + mat[5] = -copysign(1.0f, mat[3] + mat[4]); // Identity - mat[10] = 1.0f; - mat[15] = 1.0f; + mat[8] = 1.0f; } -void wlr_matrix_project_box(float mat[static 16], const struct wlr_box *box, +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 16]) { + const float projection[static 9]) { int x = box->x; int y = box->y; int width = box->width; int height = box->height; - wlr_matrix_translate(mat, x, y, 0); + wlr_matrix_identity(mat); + wlr_matrix_translate(mat, x, y); if (rotation != 0) { - float translate_center[16]; - wlr_matrix_translate(translate_center, width/2, height/2, 0); - - float rotate[16]; - wlr_matrix_rotate(rotate, rotation); - - float translate_origin[16]; - wlr_matrix_translate(translate_origin, -width/2, -height/2, 0); - - wlr_matrix_mul(mat, mat, translate_center); - wlr_matrix_mul(mat, mat, rotate); - wlr_matrix_mul(mat, mat, translate_origin); + wlr_matrix_translate(mat, width/2, height/2); + wlr_matrix_rotate(mat, rotation); + wlr_matrix_translate(mat, -width/2, -height/2); } - float scale[16]; - wlr_matrix_scale(scale, width, height, 1); - - wlr_matrix_mul(mat, mat, scale); + wlr_matrix_scale(mat, width, height); if (transform != WL_OUTPUT_TRANSFORM_NORMAL) { - float surface_translate_center[16]; - wlr_matrix_translate(surface_translate_center, 0.5, 0.5, 0); - - float surface_transform[16]; - wlr_matrix_transform(surface_transform, transform); - - float surface_translate_origin[16]; - wlr_matrix_translate(surface_translate_origin, -0.5, -0.5, 0); - - wlr_matrix_mul(mat, mat, surface_translate_center); - wlr_matrix_mul(mat, mat, surface_transform); - wlr_matrix_mul(mat, mat, surface_translate_origin); + wlr_matrix_translate(mat, 0.5, 0.5); + wlr_matrix_transform(mat, transform); + wlr_matrix_translate(mat, -0.5, -0.5); } - wlr_matrix_mul(mat, projection, mat); + wlr_matrix_multiply(mat, projection, mat); } diff --git a/types/wlr_output.c b/types/wlr_output.c index a9fb01c5..9a0edd44 100644 --- a/types/wlr_output.c +++ b/types/wlr_output.c @@ -375,7 +375,7 @@ static void output_fullscreen_surface_render(struct wlr_output *output, struct wlr_box box; output_fullscreen_surface_get_box(output, surface, &box); - float matrix[16]; + float matrix[9]; enum wl_output_transform transform = wlr_output_transform_invert(surface->current->transform); wlr_matrix_project_box(matrix, &box, transform, 0, @@ -386,7 +386,7 @@ static void output_fullscreen_surface_render(struct wlr_output *output, for (int i = 0; i < nrects; ++i) { output_scissor(output, &rects[i]); wlr_renderer_clear(renderer, (float[]){0, 0, 0, 0}); - wlr_render_with_matrix(surface->renderer, surface->texture, matrix, 1.0f); + wlr_render_texture_with_matrix(surface->renderer, surface->texture, matrix, 1.0f); } wlr_renderer_scissor(renderer, NULL); @@ -435,7 +435,7 @@ static void output_cursor_render(struct wlr_output_cursor *cursor, goto surface_damage_finish; } - float matrix[16]; + float matrix[9]; wlr_matrix_project_box(matrix, &box, WL_OUTPUT_TRANSFORM_NORMAL, 0, cursor->output->transform_matrix); @@ -443,7 +443,7 @@ static void output_cursor_render(struct wlr_output_cursor *cursor, pixman_box32_t *rects = pixman_region32_rectangles(&surface_damage, &nrects); for (int i = 0; i < nrects; ++i) { output_scissor(cursor->output, &rects[i]); - wlr_render_with_matrix(renderer, texture, matrix, 1.0f); + wlr_render_texture_with_matrix(renderer, texture, matrix, 1.0f); } wlr_renderer_scissor(renderer, NULL); diff --git a/types/wlr_surface.c b/types/wlr_surface.c index 04dcb141..ecab4842 100644 --- a/types/wlr_surface.c +++ b/types/wlr_surface.c @@ -624,20 +624,16 @@ struct wlr_surface *wlr_surface_create(struct wl_resource *res, return surface; } -void wlr_surface_get_matrix(struct wlr_surface *surface, - float mat[static 16], - const float projection[static 16], - const float transform[static 16]) { +void wlr_surface_get_matrix(struct wlr_surface *surface, float mat[static 9], + const float projection[static 9], const float transform[static 9]) { int width = surface->texture->width; int height = surface->texture->height; - float scale[16]; wlr_matrix_identity(mat); - if (transform) { - wlr_matrix_mul(mat, mat, transform); + if (transform != NULL) { + wlr_matrix_multiply(mat, mat, transform); } - wlr_matrix_scale(scale, width, height, 1); - wlr_matrix_mul(mat, mat, scale); - wlr_matrix_mul(mat, projection, mat); + wlr_matrix_scale(mat, width, height); + wlr_matrix_multiply(mat, projection, mat); } bool wlr_surface_has_buffer(struct wlr_surface *surface) {