diff --git a/src/console.c b/src/console.c index 93f19ed..eaf8558 100644 --- a/src/console.c +++ b/src/console.c @@ -47,14 +47,16 @@ #include #include "console.h" +#include "log.h" struct kmscon_console { size_t ref; - /* GL texture */ + /* GL texture and font */ GLuint tex; - uint32_t res_x; - uint32_t res_y; + unsigned int res_x; + unsigned int res_y; + struct kmscon_font *font; /* cairo surface */ cairo_t *cr; @@ -69,23 +71,81 @@ struct kmscon_console { /* cursor */ unsigned int cursor_x; unsigned int cursor_y; - - /* active font */ - struct kmscon_font *font; }; static void kmscon_console_free_res(struct kmscon_console *con) { if (con && con->cr) { + glDeleteTextures(1, &con->tex); cairo_destroy(con->cr); cairo_surface_destroy(con->surf); free(con->surf_buf); + con->tex = 0; con->cr = NULL; con->surf = NULL; con->surf_buf = NULL; } } +static int kmscon_console_new_res(struct kmscon_console *con) +{ + unsigned char *buf; + cairo_t *cr; + cairo_surface_t *surface; + int stride, ret; + cairo_format_t format = CAIRO_FORMAT_ARGB32; + + if (!con) + return -EINVAL; + + stride = cairo_format_stride_for_width(format, con->res_x); + + buf = malloc(stride * con->res_y); + if (!buf) + return -ENOMEM; + + surface = cairo_image_surface_create_for_data(buf, format, con->res_x, + con->res_y, stride); + if (cairo_surface_status(surface) != CAIRO_STATUS_SUCCESS) { + ret = -ENOMEM; + goto err_free; + } + + cr = cairo_create(surface); + if (cairo_status(cr) != CAIRO_STATUS_SUCCESS) { + ret = -EFAULT; + goto err_cairo; + } + + if (con->cr) { + glDeleteTextures(1, &con->tex); + con->tex = 0; + cairo_destroy(con->cr); + cairo_surface_destroy(con->surf); + free(con->surf_buf); + } + + con->surf_buf = buf; + con->surf = surface; + con->cr = cr; + + glGenTextures(1, &con->tex); + glBindTexture(GL_TEXTURE_RECTANGLE, con->tex); + glTexImage2D(GL_TEXTURE_RECTANGLE, 0, GL_RGBA, con->res_x, con->res_y, + 0, GL_BGRA, GL_UNSIGNED_BYTE, con->surf_buf); + glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); + + log_debug("console: new resolution %ux%u\n", con->res_x, con->res_y); + return 0; + +err_cairo: + cairo_destroy(cr); +err_free: + cairo_surface_destroy(surface); + free(buf); + return ret; +} + int kmscon_console_new(struct kmscon_console **out) { struct kmscon_console *con; @@ -100,6 +160,7 @@ int kmscon_console_new(struct kmscon_console **out) memset(con, 0, sizeof(*con)); con->ref = 1; + log_debug("console: new console\n"); ret = kmscon_buffer_new(&con->cells, 0, 0); if (ret) @@ -108,23 +169,9 @@ int kmscon_console_new(struct kmscon_console **out) con->cells_x = kmscon_buffer_get_width(con->cells); con->cells_y = kmscon_buffer_get_height(con->cells); - ret = kmscon_console_set_res(con, 800, 600); - if (ret) - goto err_buf; - - ret = kmscon_font_new(&con->font, con->res_y / 24); - if (ret) - goto err_res; - - glGenTextures(1, &con->tex); - *out = con; return 0; -err_res: - kmscon_console_free_res(con); -err_buf: - kmscon_buffer_unref(con->cells); err_free: free(con); return ret; @@ -153,8 +200,8 @@ void kmscon_console_unref(struct kmscon_console *con) kmscon_console_free_res(con); kmscon_font_unref(con->font); kmscon_buffer_unref(con->cells); - glDeleteTextures(1, &con->tex); free(con); + log_debug("console: destroing console\n"); } unsigned int kmscon_console_get_width(struct kmscon_console *con) @@ -173,14 +220,41 @@ unsigned int kmscon_console_get_height(struct kmscon_console *con) return con->cells_y; } +/* + * Resize console to \x and \y. The \height argument is just a quality hint for + * internal rendering. It is supposed to be the maximal height in pixels of your + * output. The internal texture will have this height (the width is computed + * automatically from the font and height). You can still use *_map() to map + * this texture to arbitrary outputs but if you have huge resolutions, this + * would result in bad quality if you do not specify a proper height here. + * + * You need to have an active GL context when calling this. You must call this + * before calling *_draw(). Otherwise *_draw() will not work. + * Pass 0 for each parameter if you want to use the current value. Therefore: + * kmscon_console_resize(con, 0, 0, 0) has no effect as it doesn't change + * anything. + */ int kmscon_console_resize(struct kmscon_console *con, unsigned int x, - unsigned int y) + unsigned int y, unsigned int height) { int ret; + struct kmscon_font *font; if (!con) return -EINVAL; + if (!x) + x = con->cells_x; + if (!y) + y = con->cells_y; + if (!height) + height = con->res_y; + + if (x == con->cells_x && y == con->cells_y && height == con->res_y) + return 0; + + log_debug("console: resizing to %ux%u:%u\n", x, y, height); + ret = kmscon_buffer_resize(con->cells, x, y); if (ret) return ret; @@ -193,76 +267,24 @@ int kmscon_console_resize(struct kmscon_console *con, unsigned int x, if (con->cursor_y > con->cells_y) con->cursor_y = con->cells_y; - return 0; -} - -/* - * This resets the resolution used for drawing operations. It is recommended to - * set this to the size of your framebuffer, however, you can set this to - * anything except 0. - * This image-resolution is used internally to render the console fonts. The - * kmscon_console_map() function can map this image to any framebuffer size you - * want. Therefore, this screen resolution is just a performance and quality - * hint. - * By default this is set to 800x600. - * Returns 0 on success -EINVAL if con, x or y is 0/NULL and -ENOMEM on - * out-of-mem errors. - */ -int kmscon_console_set_res(struct kmscon_console *con, uint32_t x, uint32_t y) -{ - unsigned char *buf; - cairo_t *cr; - cairo_surface_t *surface; - int stride, ret; - cairo_format_t format = CAIRO_FORMAT_ARGB32; - - if (!con || !x || !y) - return -EINVAL; - - stride = cairo_format_stride_for_width(format, x); - - buf = malloc(stride * y); - if (!buf) - return -ENOMEM; - - surface = cairo_image_surface_create_for_data(buf, format, x, y, - stride); - if (cairo_surface_status(surface) != CAIRO_STATUS_SUCCESS) { - ret = -ENOMEM; - goto err_free; + ret = kmscon_font_new(&font, height / con->cells_y); + if (ret) { + log_err("console: cannot create new font: %d\n", ret); + return ret; } - cr = cairo_create(surface); - if (cairo_status(cr) != CAIRO_STATUS_SUCCESS) { - ret = -EFAULT; - goto err_cairo; + kmscon_font_unref(con->font); + con->font = font; + con->res_x = con->cells_x * kmscon_font_get_width(con->font); + con->res_y = height; + + ret = kmscon_console_new_res(con); + if (ret) { + log_err("console: cannot create drawing buffers: %d\n", ret); + return ret; } - if (con->cr) { - cairo_destroy(con->cr); - cairo_surface_destroy(con->surf); - free(con->surf_buf); - } - - con->res_x = x; - con->res_y = y; - con->surf_buf = buf; - con->surf = surface; - con->cr = cr; - - glBindTexture(GL_TEXTURE_RECTANGLE, con->tex); - glTexImage2D(GL_TEXTURE_RECTANGLE, 0, GL_RGBA, con->res_x, con->res_y, - 0, GL_BGRA, GL_UNSIGNED_BYTE, con->surf_buf); - glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); - return 0; - -err_cairo: - cairo_destroy(cr); -err_free: - cairo_surface_destroy(surface); - free(buf); - return ret; } /* diff --git a/src/console.h b/src/console.h index 02aff38..fe0e0b6 100644 --- a/src/console.h +++ b/src/console.h @@ -97,9 +97,8 @@ void kmscon_console_unref(struct kmscon_console *con); unsigned int kmscon_console_get_width(struct kmscon_console *con); unsigned int kmscon_console_get_height(struct kmscon_console *con); int kmscon_console_resize(struct kmscon_console *con, unsigned int x, - unsigned int y); + unsigned int y, unsigned int height); -int kmscon_console_set_res(struct kmscon_console *con, uint32_t x, uint32_t y); void kmscon_console_draw(struct kmscon_console *con); void kmscon_console_map(struct kmscon_console *con); diff --git a/tests/test_console.c b/tests/test_console.c index 9b99d46..d2b9eee 100644 --- a/tests/test_console.c +++ b/tests/test_console.c @@ -126,9 +126,8 @@ static void activate_outputs(struct console *con) struct kmscon_output *iter; struct kmscon_mode *mode; int ret; - uint32_t x, y; + uint32_t y; - con->max_x = 0; con->max_y = 0; iter = kmscon_compositor_get_outputs(con->comp); @@ -140,20 +139,12 @@ static void activate_outputs(struct console *con) } mode = kmscon_output_get_current(iter); - x = kmscon_mode_get_width(mode); y = kmscon_mode_get_height(mode); - if (x > con->max_x) - con->max_x = x; if (y > con->max_y) con->max_y = y; } - if (con->max_x == 0) - con->max_x = 800; - if (con->max_y == 0) - con->max_y = 600; - - kmscon_console_set_res(con->con, con->max_x, con->max_y); + kmscon_console_resize(con->con, 0, 0, con->max_y); schedule_draw(con); }