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Mon, 3 Jun 2024 09:53:53 +0000 (UTC) Received: from hydra.redhat.com (unknown [10.39.192.139]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3DBBE402EB0; Mon, 3 Jun 2024 09:53:52 +0000 (UTC) From: Jocelyn Falempe To: dri-devel@lists.freedesktop.org, Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Javier Martinez Canillas Cc: Jocelyn Falempe Subject: [PATCH v2 2/3] drm/panic: Add a set_pixel() callback to drm_scanout_buffer Date: Mon, 3 Jun 2024 11:47:26 +0200 Message-ID: <20240603095343.39588-3-jfalempe@redhat.com> In-Reply-To: <20240603095343.39588-1-jfalempe@redhat.com> References: <20240603095343.39588-1-jfalempe@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.9 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This allows drivers to draw the pixel, and handle tiling, or specific color formats. v2: * Use fg_color for blit() functions (Javier Martinez Canillas) Signed-off-by: Jocelyn Falempe Reviewed-by: Javier Martinez Canillas --- drivers/gpu/drm/drm_panic.c | 120 +++++++++++++++++++++++------------- include/drm/drm_panic.h | 9 +++ 2 files changed, 85 insertions(+), 44 deletions(-) diff --git a/drivers/gpu/drm/drm_panic.c b/drivers/gpu/drm/drm_panic.c index 056494ae1ede..5dc9e98108ed 100644 --- a/drivers/gpu/drm/drm_panic.c +++ b/drivers/gpu/drm/drm_panic.c @@ -247,40 +247,54 @@ static void drm_panic_blit32(struct iosys_map *dmap, unsigned int dpitch, iosys_map_wr(dmap, y * dpitch + x * sizeof(u32), u32, fg32); } +static void drm_panic_blit_pixel(struct drm_scanout_buffer *sb, struct drm_rect *clip, + const u8 *sbuf8, unsigned int spitch, u32 fg_color) +{ + unsigned int y, x; + + for (y = 0; y < drm_rect_height(clip); y++) + for (x = 0; x < drm_rect_width(clip); x++) + if (drm_panic_is_pixel_fg(sbuf8, spitch, x, y)) + sb->set_pixel(sb, clip->x1 + x, clip->y1 + y, fg_color); +} + /* * drm_panic_blit - convert a monochrome image to a linear framebuffer - * @dmap: destination iosys_map - * @dpitch: destination pitch in bytes + * @sb: destination scanout buffer + * @clip: destination rectangle * @sbuf8: source buffer, in monochrome format, 8 pixels per byte. * @spitch: source pitch in bytes - * @height: height of the image to copy, in pixels - * @width: width of the image to copy, in pixels * @fg_color: foreground color, in destination format - * @pixel_width: pixel width in bytes. * * This can be used to draw a font character, which is a monochrome image, to a * framebuffer in other supported format. */ -static void drm_panic_blit(struct iosys_map *dmap, unsigned int dpitch, - const u8 *sbuf8, unsigned int spitch, - unsigned int height, unsigned int width, - u32 fg_color, unsigned int pixel_width) +static void drm_panic_blit(struct drm_scanout_buffer *sb, struct drm_rect *clip, + const u8 *sbuf8, unsigned int spitch, u32 fg_color) { - switch (pixel_width) { + struct iosys_map map; + + if (sb->set_pixel) + return drm_panic_blit_pixel(sb, clip, sbuf8, spitch, fg_color); + + map = sb->map[0]; + iosys_map_incr(&map, clip->y1 * sb->pitch[0] + clip->x1 * sb->format->cpp[0]); + + switch (sb->format->cpp[0]) { case 2: - drm_panic_blit16(dmap, dpitch, sbuf8, spitch, - height, width, fg_color); + drm_panic_blit16(&map, sb->pitch[0], sbuf8, spitch, + drm_rect_height(clip), drm_rect_width(clip), fg_color); break; case 3: - drm_panic_blit24(dmap, dpitch, sbuf8, spitch, - height, width, fg_color); + drm_panic_blit24(&map, sb->pitch[0], sbuf8, spitch, + drm_rect_height(clip), drm_rect_width(clip), fg_color); break; case 4: - drm_panic_blit32(dmap, dpitch, sbuf8, spitch, - height, width, fg_color); + drm_panic_blit32(&map, sb->pitch[0], sbuf8, spitch, + drm_rect_height(clip), drm_rect_width(clip), fg_color); break; default: - WARN_ONCE(1, "Can't blit with pixel width %d\n", pixel_width); + WARN_ONCE(1, "Can't blit with pixel width %d\n", sb->format->cpp[0]); } } @@ -324,33 +338,51 @@ static void drm_panic_fill32(struct iosys_map *dmap, unsigned int dpitch, iosys_map_wr(dmap, y * dpitch + x * sizeof(u32), u32, color); } +static void drm_panic_fill_pixel(struct drm_scanout_buffer *sb, + struct drm_rect *clip, + u32 color) +{ + unsigned int y, x; + + for (y = 0; y < drm_rect_height(clip); y++) + for (x = 0; x < drm_rect_width(clip); x++) + sb->set_pixel(sb, clip->x1 + x, clip->y1 + y, color); +} + /* * drm_panic_fill - Fill a rectangle with a color - * @dmap: destination iosys_map, pointing to the top left corner of the rectangle - * @dpitch: destination pitch in bytes - * @height: height of the rectangle, in pixels - * @width: width of the rectangle, in pixels - * @color: color to fill the rectangle. - * @pixel_width: pixel width in bytes + * @sb: destination scanout buffer + * @clip: destination rectangle + * @color: foreground color, in destination format * * Fill a rectangle with a color, in a linear framebuffer. */ -static void drm_panic_fill(struct iosys_map *dmap, unsigned int dpitch, - unsigned int height, unsigned int width, - u32 color, unsigned int pixel_width) +static void drm_panic_fill(struct drm_scanout_buffer *sb, struct drm_rect *clip, + u32 color) { - switch (pixel_width) { + struct iosys_map map; + + if (sb->set_pixel) + return drm_panic_fill_pixel(sb, clip, color); + + map = sb->map[0]; + iosys_map_incr(&map, clip->y1 * sb->pitch[0] + clip->x1 * sb->format->cpp[0]); + + switch (sb->format->cpp[0]) { case 2: - drm_panic_fill16(dmap, dpitch, height, width, color); + drm_panic_fill16(&map, sb->pitch[0], drm_rect_height(clip), + drm_rect_width(clip), color); break; case 3: - drm_panic_fill24(dmap, dpitch, height, width, color); + drm_panic_fill24(&map, sb->pitch[0], drm_rect_height(clip), + drm_rect_width(clip), color); break; case 4: - drm_panic_fill32(dmap, dpitch, height, width, color); + drm_panic_fill32(&map, sb->pitch[0], drm_rect_height(clip), + drm_rect_width(clip), color); break; default: - WARN_ONCE(1, "Can't fill with pixel width %d\n", pixel_width); + WARN_ONCE(1, "Can't fill with pixel width %d\n", sb->format->cpp[0]); } } @@ -383,25 +415,24 @@ static void draw_txt_rectangle(struct drm_scanout_buffer *sb, int i, j; const u8 *src; size_t font_pitch = DIV_ROUND_UP(font->width, 8); - struct iosys_map dst; - unsigned int px_width = sb->format->cpp[0]; - int left = 0; + struct drm_rect rec; msg_lines = min(msg_lines, drm_rect_height(clip) / font->height); for (i = 0; i < msg_lines; i++) { size_t line_len = min(msg[i].len, drm_rect_width(clip) / font->width); + rec.y1 = clip->y1 + i * font->height; + rec.y2 = rec.y1 + font->height; + rec.x1 = clip->x1; + if (centered) - left = (drm_rect_width(clip) - (line_len * font->width)) / 2; + rec.x1 += (drm_rect_width(clip) - (line_len * font->width)) / 2; - dst = sb->map[0]; - iosys_map_incr(&dst, (clip->y1 + i * font->height) * sb->pitch[0] + - (clip->x1 + left) * px_width); for (j = 0; j < line_len; j++) { src = get_char_bitmap(font, msg[i].txt[j], font_pitch); - drm_panic_blit(&dst, sb->pitch[0], src, font_pitch, - font->height, font->width, color, px_width); - iosys_map_incr(&dst, font->width * px_width); + rec.x2 = rec.x1 + font->width; + drm_panic_blit(sb, &rec, src, font_pitch, color); + rec.x1 += font->width; } } } @@ -416,7 +447,7 @@ static void draw_panic_static(struct drm_scanout_buffer *sb) u32 fg_color = CONFIG_DRM_PANIC_FOREGROUND_COLOR; u32 bg_color = CONFIG_DRM_PANIC_BACKGROUND_COLOR; const struct font_desc *font = get_default_font(sb->width, sb->height, NULL, NULL); - struct drm_rect r_logo, r_msg; + struct drm_rect r_screen, r_logo, r_msg; if (!font) return; @@ -424,6 +455,8 @@ static void draw_panic_static(struct drm_scanout_buffer *sb) fg_color = convert_from_xrgb8888(fg_color, sb->format->format); bg_color = convert_from_xrgb8888(bg_color, sb->format->format); + r_screen = DRM_RECT_INIT(0, 0, sb->width, sb->height); + r_logo = DRM_RECT_INIT(0, 0, get_max_line_len(logo, logo_lines) * font->width, logo_lines * font->height); @@ -435,8 +468,7 @@ static void draw_panic_static(struct drm_scanout_buffer *sb) drm_rect_translate(&r_msg, (sb->width - r_msg.x2) / 2, (sb->height - r_msg.y2) / 2); /* Fill with the background color, and draw text on top */ - drm_panic_fill(&sb->map[0], sb->pitch[0], sb->height, sb->width, - bg_color, sb->format->cpp[0]); + drm_panic_fill(sb, &r_screen, bg_color); if ((r_msg.x1 >= drm_rect_width(&r_logo) || r_msg.y1 >= drm_rect_height(&r_logo)) && drm_rect_width(&r_logo) < sb->width && drm_rect_height(&r_logo) < sb->height) { diff --git a/include/drm/drm_panic.h b/include/drm/drm_panic.h index 822dbb1aa9d6..73bb3f3d9ed9 100644 --- a/include/drm/drm_panic.h +++ b/include/drm/drm_panic.h @@ -50,6 +50,15 @@ struct drm_scanout_buffer { * @pitch: Length in bytes between the start of two consecutive lines. */ unsigned int pitch[DRM_FORMAT_MAX_PLANES]; + + /** + * @set_pixel: Optional function, to set a pixel color on the + * framebuffer. It allows to handle special tiling format inside the + * driver. + */ + void (*set_pixel)(struct drm_scanout_buffer *sb, unsigned int x, + unsigned int y, u32 color); + }; /**